Alert archive / Wyoming / Winter Storm Warnings in 2011
Winter Storm Warning 14, NWS Riverton, WY
NWS Riverton, WY issued this winter storm warning at Dec 21, 2011, 10:19 AM MST for Fremont County, Natrona County, Sublette County, Wyoming. It was in force for 19 hr. 60 reports came from inside the area while it was in force.
The area
The counties it named, with what was reported inside it.
The facts
- Issued
- Dec 21, 2011, 10:19 AM MST (17:19 UTC)
- Expired
- Dec 22, 2011, 5:00 AM MST
- In force
- 19 hr
- Issued by
- NWS Riverton, WY
Counties Fremont County, WY, Natrona County, WY, Sublette County, WY
The radar
The Riverton/Lander radar (KRIW), 16 km from the middle of the area, began a volume at 17:22 UTC, the scan nearest the moment this went out.
Open the radar archive at this moment
The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| Dec 21, 11:09 AM MST | SNOW 2 | Edgerton, WY | |
| Dec 21, 11:16 AM MST | SNOW 1.5 | 1 Nw Red Butte, WY | |
| Dec 21, 11:17 AM MST | SNOW 2 | Arapahoe, WY | |
| Dec 21, 11:19 AM MST | SNOW 0.7 | 2 Se Riverton, WY | |
| Dec 21, 11:19 AM MST | SNOW 1.5 | Hudson, WY | |
| Dec 21, 11:19 AM MST | SNOW 1.9 | 6 W Casper, WY | CASPER AIRPORT |
| Dec 21, 11:19 AM MST | SNOW 4 | Moneta, WY | |
| Dec 21, 11:23 AM MST | SNOW 5.4 | 2 Ene Casper, WY | |
| Dec 21, 11:28 AM MST | SNOW 2.1 | 31 Wsw Thermopolis, WY | |
| Dec 21, 1:01 PM MST | SNOW 0.9 | 1 S Lander, WY | LANDER AIRPORT |
| Dec 21, 1:01 PM MST | SNOW 2.6 | Paradise Valley, WY | |
| Dec 21, 1:01 PM MST | HEAVY SNOW 6 | Casper, WY | |
| Dec 21, 1:04 PM MST | SNOW 3 | Powder River, WY | |
| Dec 21, 1:04 PM MST | HEAVY SNOW 6 | Hiland, WY | |
| Dec 21, 1:09 PM MST | SNOW 1.9 | Riverton, WY | |
| Dec 21, 1:57 PM MST | SNOW 4 | 11 N Dubois, WY | BURROUGHS CREEK SNOTEL |
| Dec 21, 1:57 PM MST | SNOW 4 | 16 Ne Dubois, WY | CASTLE CREEK SNOTEL |
| Dec 21, 2:00 PM MST | HEAVY SNOW 7 | 21 Sw Barnum, WY | GRAVE SPRING SNOTEL |
| Dec 21, 2:01 PM MST | SNOW 4 | 14 E Bondurant, WY | LOOMIS PARK SNOTEL |
| Dec 21, 2:02 PM MST | SNOW 4 | 24 Ese Boulder, WY | BIG SANDY OPENING SNOTEL |
| Dec 21, 2:03 PM MST | SNOW 1 | 14 W Crowheart, WY | COLD SPRINGS SNOTEL |
| Dec 21, 2:03 PM MST | SNOW 1 | 19 Ssw Lander, WY | DEER PARK SNOTEL |
| Dec 21, 2:03 PM MST | SNOW 2 | 16 E Boulder, WY | POCKET CREEK SNOTEL |
| Dec 21, 2:03 PM MST | SNOW 4 | 12 N Cora, WY | NEW FORK LAKE SNOTEL |
| Dec 21, 2:03 PM MST | SNOW 4 | 16 Sw Dubois, WY | GUNSITE PASS SNOTEL |
| Dec 21, 2:03 PM MST | SNOW 4 | 22 N Cora, WY | KENDALL RANGER STATION SNOTEL |
| Dec 21, 2:03 PM MST | SNOW 5 | 25 Sw Lander, WY | LARSEN CREEK SNOTEL |
| Dec 21, 2:04 PM MST | SNOW 4 | 18 W Lander, WY | HOBBS PARK SNOTEL |
| Dec 21, 2:06 PM MST | SNOW 1.5 | Lander, WY | |
| Dec 21, 2:06 PM MST | SNOW 2 | 6 Wsw Dubois, WY | LITTLE WARM SNOTEL |
| Dec 21, 2:09 PM MST | SNOW 2 | Riverton, WY | |
| Dec 21, 2:11 PM MST | SNOW 2 | 7 Nw Atlantic City, WY | SOUTH PASS SNOTEL |
| Dec 21, 2:11 PM MST | SNOW 4 | 12 Sw Lander, WY | TOWNSEND CREEK SNOTEL |
| Dec 21, 2:11 PM MST | SNOW 5 | 22 Sse Casper, WY | RENO HILL SNOTEL |
| Dec 21, 2:11 PM MST | SNOW 5 | 26 Nw Lander, WY | ST. LAWRENCE ALT SNOTEL |
| Dec 21, 2:11 PM MST | HEAVY SNOW 9 | 7 S Casper, WY | CASPER MOUNTAIN |
| Dec 21, 2:13 PM MST | SNOW 2 | Snider Basin, WY | |
| Dec 21, 2:14 PM MST | SNOW 2 | 12 Ese Bondurant, WY | EAST RIM DIVIDE SNOTEL |
| Dec 21, 2:14 PM MST | SNOW 4 | 17 E Afton, WY | TRIPLE PEAK SNOTEL |
| Dec 21, 3:57 PM MST | SNOW 2 | Riverton, WY | |
| Dec 21, 3:59 PM MST | SNOW 2.3 | 4.5 Nw Riverton, WY | RIVERTON ASOS |
| Dec 21, 4:21 PM MST | HEAVY SNOW 11 | 1 Se Lander, WY | |
| Dec 21, 4:35 PM MST | HEAVY SNOW 6.5 | Lander, WY | |
| Dec 21, 4:58 PM MST | HEAVY SNOW 6.7 | 1 S Lander, WY | LANDER AIRPORT |
| Dec 21, 5:02 PM MST | SNOW 3.3 | 6 W Casper, WY | CASPER AIRPORT |
| Dec 21, 5:28 PM MST | HEAVY SNOW 17 | 7 S Casper, WY | CASPER MOUNTAIN |
| Dec 21, 7:18 PM MST | HEAVY SNOW 6 | 5 Wsw Lander, WY | |
| Dec 21, 7:18 PM MST | HEAVY SNOW 11 | 10 S Lander, WY | RED CANYON |
| Dec 21, 7:19 PM MST | SNOW 4.6 | 2 S Casper, WY | |
| Dec 21, 7:20 PM MST | SNOW 1.9 | 2 Se Riverton, WY | |
| Dec 21, 8:06 PM MST | SNOW 2 | 11 N Dubois, WY | BURROUGHS CREEK SNOTEL |
| Dec 21, 8:06 PM MST | SNOW 2 | 16 Ne Dubois, WY | CASTLE CREEK SNOTEL |
| Dec 21, 8:11 PM MST | SNOW 5 | 25 Sw Lander, WY | LARSEN CREEK SNOTEL |
| Dec 21, 8:12 PM MST | SNOW 2 | 16 E Boulder, WY | POCKET CREEK SNOTEL |
| Dec 21, 8:12 PM MST | SNOW 4 | 14 W Crowheart, WY | COLD SPRINGS SNOTEL |
| Dec 21, 8:12 PM MST | HEAVY SNOW 7 | 19 Ssw Lander, WY | DEER PARK SNOTEL |
| Dec 21, 8:12 PM MST | HEAVY SNOW 11 | 7 Nw Atlantic City, WY | SOUTH PASS SNOTEL |
| Dec 21, 8:12 PM MST | HEAVY SNOW 20 | 18 W Lander, WY | HOBBS PARK SNOTEL |
| Dec 21, 8:13 PM MST | SNOW 2 | 21 W Big Piney, WY | SNIDER BASIN SNOTEL |
| Dec 21, 8:13 PM MST | HEAVY SNOW 16 | 12 Sw Lander, WY | TOWNSEND CREEK SNOTEL |
Local storm reports filed while the alert was in force, from inside its polygon or its counties.
The nearest sounding before it
Riverton, WY (KRIW), launched 12:00Z, 5.3 hours before the alert went out and 17 km from the middle of its area. This is the routine balloon launch nearest before it, the air the forecaster had in hand, not a measurement taken for the alert.
- Mixed-layer CAPE
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 1096 m above ground
- 0-6 km bulk shear
- 71 kt
- 0-1 km storm-relative helicity
- 5 m²/s²
- 0-3 km storm-relative helicity
- 77 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
182 WWUS45 KRIW 211719 WSWRIW URGENT - WINTER WEATHER MESSAGE NATIONAL WEATHER SERVICE RIVERTON WY 1019 AM MST WED DEC 21 2011 ...WINTER STORM STRENGTHENING OVER WESTERN AND CENTRAL WYOMING TODAY... .AN AREA OF LOW PRESSURE WILL BRING SNOWFALL ACROSS MUCH OF CENTRAL WYOMING TODAY. SNOWFALL WILL CONTINUE THROUGH TONIGHT... WITH ENHANCED SNOWFALL EXPECTED IN FAVORED UPSLOPE AREAS THROUGH THE AFTERNOON AND EVENING HOURS. TRAVEL THROUGH IMPACTED AREAS IS EXPECTED TO BECOME HAZARDOUS AT TIMES. WYZ022-220000- /O.UPG.KRIW.WW.Y.0043.000000T0000Z-111222T1200Z/ /O.NEW.KRIW.WS.W.0014.111221T1719Z-111222T1200Z/ CASPER MOUNTAIN- 1019 AM MST WED DEC 21 2011 ...WINTER STORM WARNING IN EFFECT UNTIL 5 AM MST THURSDAY... THE NATIONAL WEATHER SERVICE IN RIVERTON HAS ISSUED A WINTER STORM WARNING FOR SNOW AND WIND WHICH IS IN EFFECT UNTIL 5 AM MST THURSDAY. THE WINTER WEATHER ADVISORY IS NO LONGER IN EFFECT. * SUMMARY AND TIMING...SNOW...HEAVY AT TIMES...IS EXPECTED THROUGH THIS EVENING BEFORE GRADUALLY TAPERING OFF. THE HEAVIEST SNOWFALL IS EXPECTED TO OCCUR THIS AFTERNOON AND EARLY EVENING SNOWFALL RATES COULD APPROACH ONE INCH AN HOUR AT TIMES. * SNOW ACCUMULATIONS...CASPER MOUNTAIN WILL SEE SNOWFALL OF 9 TO 15 INCHES OF SNOWFALL BY EARLY THURSDAY MORNING WITH LOCALLY HIGHER AMOUNTS POSSIBLE. * WIND AND VISIBILITY...WIND OF 15 TO 20 MPH WITH GUSTS TO AROUND 30 MPH ARE ANTICIPATED TODAY. THIS GUSTY WIND WILL CREATE SOME BLOWING SNOW AROUND CASPER... AND CREATE DECREASED VISIBILITIES ALONG INTERSTATE 25. PERIODS OF HEAVIER SNOWFALL MAY ALSO CREATE PERIODS OF REDUCED VISIBILITY. * IMPACTS...TRAVEL UP CASPER MOUNTAIN WILL BECOME HAZARDOUS AS SNOW...REDUCED VISIBILITY AND SLICK ROADS COMBINE. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER STORM WARNING FOR HEAVY SNOW MEANS SEVERE WINTER WEATHER CONDITIONS ARE EXPECTED OR OCCURRING. SIGNIFICANT AMOUNTS OF SNOW ARE FORECAST THAT WILL MAKE TRAVEL DANGEROUS. ONLY TRAVEL IN AN EMERGENCY. IF YOU MUST TRAVEL...KEEP AN EXTRA FLASHLIGHT... FOOD...AND WATER IN YOUR VEHICLE IN CASE OF AN EMERGENCY. THE LATEST ROAD CONDITIONS PROVIDED BY THE WYOMING DEPARTMENT OF TRANSPORTATION ARE AVAILABLE BY CALLING 5-1-1 OR ON THE INTERNET AT WYOROAD.INFO. && $$ WYZ020-220000- /O.UPG.KRIW.WW.Y.0043.000000T0000Z-111222T1200Z/ /O.NEW.KRIW.WS.W.0014.111221T1719Z-111222T1200Z/ NATRONA COUNTY LOWER ELEVATIONS- INCLUDING THE CITY OF...CASPER 1019 AM MST WED DEC 21 2011 ...WINTER STORM WARNING IN EFFECT UNTIL 5 AM MST THURSDAY... THE NATIONAL WEATHER SERVICE IN RIVERTON HAS ISSUED A WINTER STORM WARNING FOR SNOW AND WIND WHICH IS IN EFFECT UNTIL 5 AM MST THURSDAY. THE WINTER WEATHER ADVISORY IS NO LONGER IN EFFECT. * SUMMARY AND TIMING...SNOW...HEAVY AT TIMES...IS EXPECTED THROUGH THIS EVENING BEFORE GRADUALLY DECREASING. SNOWFALL RATES COULD APPROACH ONE INCH AN HOUR AT TIMES. * SNOW ACCUMULATIONS...SNOWFALL OF 5 TO 7 INCHES IS EXPECTED OVER THE LOWER ELEVATIONS OF NATRONA COUNTY...WITH HIGHER SNOWFALL ACCUMULATIONS POSSIBLE NEAR THE BASE OF CASPER MOUNTAIN. SNOWFALL AMOUNTS OF 1 TO 3 INCHES WERE ALREADY REPORTED AROUND THE AREA. * WIND AND VISIBILITY...WIND OF 15 TO 20 MPH WITH GUSTS TO AROUND 30 MPH ARE ANTICIPATED TODAY. THIS GUSTY WIND WILL CREATE SOME BLOWING SNOW AROUND CASPER AND CREATE DECREASED VISIBILITIES ALONG INTERSTATE 25. PERIODS OF HEAVIER SNOWFALL MAY ALSO CREATE PERIODS OF REDUCED VISIBILITY. * IMPACTS...ROADWAY TRAVEL WILL BECOME HAZARDOUS THROUGH NATRONA COUNTY...INCLUDING INTERSTATE 25. ROADWAYS MAY BECOME SLICK AND SNOW PACKED...WITH SOME REDUCTIONS IN VISIBILITIES POSSIBLE. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER STORM WARNING FOR HEAVY SNOW MEANS SEVERE WINTER WEATHER CONDITIONS ARE EXPECTED OR OCCURRING. SIGNIFICANT AMOUNTS OF SNOW ARE FORECAST THAT WILL MAKE TRAVEL DANGEROUS. ONLY TRAVEL IN AN EMERGENCY. IF YOU MUST TRAVEL...KEEP AN EXTRA FLASHLIGHT... FOOD...AND WATER IN YOUR VEHICLE IN CASE OF AN EMERGENCY. THE LATEST ROAD CONDITIONS PROVIDED BY THE WYOMING DEPARTMENT OF TRANSPORTATION ARE AVAILABLE BY CALLING 5-1-1 OR ON THE INTERNET AT WYOROAD.INFO. && $$ WYZ018-220000- /O.UPG.KRIW.WW.Y.0043.000000T0000Z-111222T1200Z/ /O.NEW.KRIW.WS.W.0014.111221T1719Z-111222T1200Z/ LANDER FOOTHILLS- INCLUDING THE CITY OF...LANDER 1019 AM MST WED DEC 21 2011 ...WINTER STORM WARNING IN EFFECT UNTIL 5 AM MST THURSDAY... THE NATIONAL WEATHER SERVICE IN RIVERTON HAS ISSUED A WINTER STORM WARNING FOR SNOW WHICH IS IN EFFECT UNTIL 5 AM MST THURSDAY. THE WINTER WEATHER ADVISORY IS NO LONGER IN EFFECT. * SUMMARY AND TIMING...SNOWFALL IS EXPECTED TO OVERSPREAD THE AREA THIS MORNING...AND LAST THROUGH EARLY THURSDAY MORNING. THE HEAVIEST SNOWFALL IS EXPECTED TO OCCUR EARLY THIS AFTERNOON INTO THE EVENING...WHEN SNOWFALL RATES COULD APPROACH ONE INCH AN HOUR AT TIMES. SNOWFALL IS ANTICIPATED TO TAPER OFF THURSDAY MORNING. * SNOW ACCUMULATIONS...5 TO 8 INCHES...WITH LOCALLY HIGHER AMOUNTS CLOSER TO THE BASE OF THE WIND RIVER MOUNTAINS. * WIND AND VISIBILITY...PERIODS OF HEAVY SNOWFALL WILL REDUCE VISIBILITY TO LESS THAN A QUARTER OF A MILE. * IMPACTS...ROADS WILL BE SLICK WITH LIMITED VISIBILITY. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER STORM WARNING FOR HEAVY SNOW MEANS SEVERE WINTER WEATHER CONDITIONS ARE EXPECTED OR OCCURRING. SIGNIFICANT AMOUNTS OF SNOW ARE FORECAST THAT WILL MAKE TRAVEL DANGEROUS. ONLY TRAVEL IN AN EMERGENCY. IF YOU MUST TRAVEL...KEEP AN EXTRA FLASHLIGHT... FOOD...AND WATER IN YOUR VEHICLE IN CASE OF AN EMERGENCY. THE LATEST ROAD CONDITIONS PROVIDED BY THE WYOMING DEPARTMENT OF TRANSPORTATION ARE AVAILABLE BY CALLING 5-1-1 OR ON THE INTERNET AT WYOROAD.INFO. && $$ WYZ015-220000- /O.UPG.KRIW.WW.Y.0043.000000T0000Z-111222T1200Z/ /O.NEW.KRIW.WS.W.0014.111221T1719Z-111222T1200Z/ WIND RIVER MOUNTAINS EAST- 1019 AM MST WED DEC 21 2011 ...WINTER STORM WARNING IN EFFECT UNTIL 5 AM MST THURSDAY... THE NATIONAL WEATHER SERVICE IN RIVERTON HAS ISSUED A WINTER STORM WARNING FOR SNOW AND WIND WHICH IS IN EFFECT UNTIL 5 AM MST THURSDAY. THE WINTER WEATHER ADVISORY IS NO LONGER IN EFFECT. * SUMMARY AND TIMING...SNOWFALL IS EXPECTED TO OVERSPREAD THE AREA THIS MORNING...AND LAST THROUGH EARLY THURSDAY MORNING. THE HEAVIEST SNOWFALL IS EXPECTED TO OCCUR EARLY THIS AFTERNOON INTO THE EVENING...WHEN SNOWFALL RATES COULD EXCEED ONE INCH AN HOUR AT TIMES. SNOWFALL IS ANTICIPATED TO TAPER OFF THURSDAY MORNING. * SNOW ACCUMULATIONS...THE EASTERN SLOPES OF THE WIND RIVER MOUNTAINS WILL SEE 9 TO 15 INCHES OF SNOWFALL BY THURSDAY MORNING...WITH LOCALLY HIGHER ACCUMULATIONS POSSIBLE. * WIND AND VISIBILITY...STRONG NORTHEAST WINDS WILL DEVELOP THIS AFTERNOON AND INTENSIFY INTO THE EVENING HOURS. THE STRONG NORTHEAST WINDS OF 25 TO 45 MPH COMBINED WITH HEAVY SNOW WILL PRODUCE OCCASIONAL WHITEOUT CONDITIONS OVER SOUTH PASS LATER THIS AFTERNOON THROUGH TONIGHT. * IMPACTS...TRAVEL ACROSS SOUTH PASS WILL BECOME HAZARDOUS THROUGH THURSDAY MORNING. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER STORM WARNING FOR HEAVY SNOW MEANS SEVERE WINTER WEATHER CONDITIONS ARE EXPECTED OR OCCURRING. SIGNIFICANT AMOUNTS OF SNOW ARE FORECAST THAT WILL MAKE TRAVEL DANGEROUS. ONLY TRAVEL IN AN EMERGENCY. IF YOU MUST TRAVEL...KEEP AN EXTRA FLASHLIGHT... FOOD...AND WATER IN YOUR VEHICLE IN CASE OF AN EMERGENCY. THE LATEST ROAD CONDITIONS PROVIDED BY THE WYOMING DEPARTMENT OF TRANSPORTATION ARE AVAILABLE BY CALLING 5-1-1 OR ON THE INTERNET AT WYOROAD.INFO. && $$ WYZ019-220000- /O.CON.KRIW.WW.Y.0043.000000T0000Z-111222T1200Z/ GREEN MOUNTAINS AND RATTLESNAKE RANGE- INCLUDING THE CITY OF...JEFFREY CITY 1019 AM MST WED DEC 21 2011 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 5 AM MST THURSDAY... A WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 5 AM MST THURSDAY. * SUMMARY AND TIMING...SNOWFALL IS EXPECTED TO OVERSPREAD THE GREEN MOUNTAINS AND RATTLESNAKE RANGE THIS MORNING...AND LAST THROUGH EARLY THURSDAY MORNING. THE HEAVIEST SNOWFALL IS EXPECTED TO OCCUR THIS MORNING...LASTING INTO THE EARLY EVENING. SNOWFALL IS ANTICIPATED TO TAPER OFF THURSDAY MORNING. * SNOW ACCUMULATIONS...WIDESPREAD SNOWFALL OF 4 TO 6 INCHES IS EXPECTED ACROSS THE AREA...WITH LOCALLY HIGHER AMOUNTS POSSIBLE. * WIND AND VISIBILITY...NORTHERLY WIND OF 20 TO 30 MPH IS EXPECTED TO INCREASE ACROSS THE AREA LATE THIS AFTERNOON...REDUCING VISIBILITIES TO NEAR WHITEOUT CONDITIONS AT TIMES. * IMPACTS...TRAVEL ALONG HIGHWAY 287 WILL BE HAZARDOUS THROUGH THIS EVENING. SLICK AND SNOW PACKED ROADS ARE ANTICIPATED... WITH REDUCED VISIBILITIES POSSIBLE. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER WEATHER ADVISORY MEANS THAT PERIODS OF SNOW AND BLOWING SNOW WILL CAUSE TRAVEL DIFFICULTIES. BE PREPARED FOR SLIPPERY ROADS AND LIMITED VISIBILITIES...AND USE CAUTION WHILE DRIVING. THE LATEST ROAD CONDITIONS PROVIDED BY THE WYOMING DEPARTMENT OF TRANSPORTATION ARE AVAILABLE BY CALLING 5-1-1 OR ON THE INTERNET AT WYOROAD.INFO. && $$ WYZ010-011-220000- /O.CON.KRIW.WW.Y.0043.000000T0000Z-111222T0600Z/ NORTHEAST JOHNSON COUNTY-SOUTHEAST JOHNSON COUNTY- INCLUDING THE CITIES OF...BUFFALO...KAYCEE 1019 AM MST WED DEC 21 2011 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 11 PM MST THIS EVENING... A WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 11 PM MST THIS EVENING. * SUMMARY AND TIMING...SNOW WILL CONTINUE ACROSS THE AREA MUCH OF THE DAY BEFORE DECREASING THIS EVENING. THERE COULD BE SOME BREAKS IN THE SNOWFALL BUT MUCH OF THE DAY WILL SEE AT LEAST LIGHT SNOW AND STRONG NORTH WIND. * SNOW ACCUMULATIONS...WIDESPREAD ACCUMULATIONS OF 2 TO 4 INCHES WILL BE POSSIBLE ACROSS THE AREA...WITH AREAS WEST OF BUFFALO SEEING LOCALLY HIGHER SNOWFALL AMOUNTS. UP TO 2 INCHES HAS ALREADY BEEN REPORTED AROUND BUFFALO. * WIND AND VISIBILITY...NORTH WIND 20 TO 35 MPH WITH SOME HIGHER GUSTS WILL REDUCE VISIBILITIES ALONG INTERSTATES 90 AND 25 THROUGH JOHNSON COUNTY. NEAR WHITEOUT CONDITIONS WILL BE POSSIBLE AT TIMES. * IMPACTS...TRAVEL ALONG INTERSTATES 90 AND 25 WILL BE HAZARDOUS TODAY. ROADS WILL BECOME SLICK AND SNOW PACKED...WITH GUSTY WIND DECREASING VISIBILITIES. NEAR WHITEOUT CONDITIONS WILL BE POSSIBLE AT TIMES. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER WEATHER ADVISORY MEANS THAT PERIODS OF SNOW AND BLOWING SNOW WILL CAUSE TRAVEL DIFFICULTIES. BE PREPARED FOR SLIPPERY ROADS AND LIMITED VISIBILITIES...AND USE CAUTION WHILE DRIVING. THE LATEST ROAD CONDITIONS PROVIDED BY THE WYOMING DEPARTMENT OF TRANSPORTATION ARE AVAILABLE BY CALLING 5-1-1 OR ON THE INTERNET AT WYOROAD.INFO. && $$ WYZ008-009-220000- /O.CON.KRIW.WW.Y.0043.000000T0000Z-111222T0600Z/ BIGHORN MOUNTAINS WEST-BIGHORN MOUNTAINS SOUTHEAST- 1019 AM MST WED DEC 21 2011 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 11 PM MST THIS EVENING... A WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 11 PM MST THIS EVENING. * SUMMARY AND TIMING...SNOWFALL...HEAVY AT TIMES...WILL CONTINUE OVER THE BIGHORN MOUNTAINS THROUGH THIS EVENING. SNOWFALL RATES MAY APPROACH ONE INCH AN HOUR AT TIMES...MAINLY THROUGH THE EARLY AFTERNOON HOURS. * SNOW ACCUMULATIONS...SNOWFALL OF 6 TO 10 INCHES IS EXPECTED OVER THE BIGHORN MOUNTAINS...WITH LOCALLY HIGHER AMOUNTS POSSIBLE SOUTH AND WEST OF BURGESS JUNCTION. TWO TO 5 INCHES HAS ALREADY BEEN REPORTED THIS MORNING. * WIND AND VISIBILITY...NORTHERLY WIND OF 20 TO 25 MPH WITH GUSTS AROUND 35 MPH WILL BE POSSIBLE...MAINLY ACROSS THE EASTERN SLOPES OF THE BIGHORN MOUNTAINS. BLOWING SNOW WILL BE POSSIBLE ACROSS THE PASSES...REDUCING VISIBILITIES AT TIME. * IMPACTS...TRAVEL ALONG THE MOUNTAIN PASSES WILL BECOME HAZARDOUS TODAY. SLICK AND SNOW PACKED ROADS ARE EXPECTED. AREAS OF BLOWING SNOW WILL ALSO BE POSSIBLE... RESULTING IN DECREASED VISIBILITIES ACROSS THE AREA. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER WEATHER ADVISORY MEANS THAT PERIODS OF SNOW AND BLOWING SNOW WILL CAUSE TRAVEL DIFFICULTIES. BE PREPARED FOR SLIPPERY ROADS AND LIMITED VISIBILITIES...AND USE CAUTION WHILE DRIVING. THE LATEST ROAD CONDITIONS PROVIDED BY THE WYOMING DEPARTMENT OF TRANSPORTATION ARE AVAILABLE BY CALLING 5-1-1 OR ON THE INTERNET AT WYOROAD.INFO. && $$ WYZ005>007-220000- /O.CON.KRIW.WW.Y.0043.000000T0000Z-111222T0000Z/ SOUTHWEST BIG HORN BASIN-SOUTHEAST BIG HORN BASIN- OWL CREEK AND BRIDGER MOUNTAINS- INCLUDING THE CITIES OF...THERMOPOLIS...WORLAND 1019 AM MST WED DEC 21 2011 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 5 PM MST THIS AFTERNOON... A WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 5 PM MST THIS AFTERNOON. * SUMMARY AND TIMING...SNOWFALL WILL SPREAD INTO THE SOUTHERN HALF OF THE BIG HORN BASIN THIS MORNING. FAVORED UPSLOPE AREAS WILL SEE INCREASED SNOWFALL THIS MORNING WHEN SNOWFALL RATES MAY APPROACH AN INCH AN HOUR. * SNOW ACCUMULATIONS...SNOWFALL OF 2 TO 4 INCHES IS EXPECTED ACROSS THE AREA...WITH HIGHER SNOWFALL AMOUNTS OF 4 TO 7 INCHES EXPECTED IN THE FAVORED UPSLOPE AREAS BETWEEN THERMOPOLIS AND TEN SLEEP. TEN SLEEP ALREADY REPORTED 4 INCHES THIS MORNING. * WIND AND VISIBILITY...GUSTY NORTHERLY WIND WILL IMPACT THE AREA THIS AFTERNOON AND EVENING...RESULTING IN SOME AREAS OF BLOWING SNOW. THIS WILL REDUCE VISIBILITIES ALONG TRAVEL RATES... INCLUDING 789 THROUGH THE WIND RIVER CANYON. * IMPACTS...TRAVEL WILL BE HAZARDOUS ACROSS THE AREA TODAY... AND WILL ESPECIALLY BE TREACHEROUS THROUGH THE WIND RIVER CANYON. ROADS WILL BE SLICK AND SNOW PACKED...AND GUSTY WIND WILL REDUCE VISIBILITIES THROUGH THE DAY. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER WEATHER ADVISORY MEANS THAT PERIODS OF SNOW AND BLOWING SNOW WILL CAUSE TRAVEL DIFFICULTIES. BE PREPARED FOR SLIPPERY ROADS AND LIMITED VISIBILITIES...AND USE CAUTION WHILE DRIVING. THE LATEST ROAD CONDITIONS PROVIDED BY THE WYOMING DEPARTMENT OF TRANSPORTATION ARE AVAILABLE BY CALLING 5-1-1 OR ON THE INTERNET AT WYOROAD.INFO. && $$ WYZ003-220000- /O.CON.KRIW.WW.Y.0043.000000T0000Z-111222T0000Z/ CODY FOOTHILLS- INCLUDING THE CITIES OF...CODY...MEETEETSE 1019 AM MST WED DEC 21 2011 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 5 PM MST THIS AFTERNOON... A WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 5 PM MST THIS AFTERNOON. * SUMMARY AND TIMING...SNOW WILL CONTINUE TODAY. SNOWFALL RATES APPROACHING AN INCH AN HOUR ARE POSSIBLE. * SNOW ACCUMULATIONS...SNOWFALL OF 3 TO 6 INCHES IS EXPECTED ACROSS THE AREA...WITH LOCALLY HIGHER SNOWFALL POSSIBLE. MEETEETSE REPORTED 4 TO 5 INCHES ALREADY THIS MORNING. * WIND AND VISIBILITY...GUSTY NORTH WIND WILL IMPACT THE FOOTHILLS DURING THE AFTERNOON HOURS...WHICH WILL BRING PERIODS OF BLOWING SNOW. THIS BLOWING SNOW WILL REDUCE VISIBILITIES ALONG ROADWAYS THROUGH THE EARLY EVENING. * IMPACTS...TRAVEL THROUGH THE CODY FOOTHILLS WILL BECOME HAZARDOUS TODAY. SLICK AND SNOW PACKED ROADWAYS ARE EXPECTED... WITH PERIODS OF REDUCED VISIBILITIES DUE TO BLOWING SNOW. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER WEATHER ADVISORY MEANS THAT PERIODS OF SNOW AND BLOWING SNOW WILL CAUSE TRAVEL DIFFICULTIES. BE PREPARED FOR SLIPPERY ROADS AND LIMITED VISIBILITIES...AND USE CAUTION WHILE DRIVING. THE LATEST ROAD CONDITIONS PROVIDED BY THE WYOMING DEPARTMENT OF TRANSPORTATION ARE AVAILABLE BY CALLING 5-1-1 OR ON THE INTERNET AT WYOROAD.INFO. && $$ WYZ002-220000- /O.CON.KRIW.WW.Y.0043.000000T0000Z-111222T0000Z/ ABSAROKA MOUNTAINS- 1019 AM MST WED DEC 21 2011 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 5 PM MST THIS AFTERNOON... A WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 5 PM MST THIS AFTERNOON. * SUMMARY AND TIMING...SNOWFALL WILL CONTINUE TO IMPACT THE ABSAROKA MOUNTAINS THROUGH THE AFTERNOON HOURS. SNOWFALL RATES OF AROUND AN INCH AN HOUR WILL BE POSSIBLE ACROSS THE NORTHERN HALF OF THE MOUNTAINS THROUGH THE MORNING HOURS. * SNOW ACCUMULATIONS...WIDESPREAD SNOWFALL OF 5 TO 10 INCHES IS EXPECTED BY THIS EVENING. HIGHER AMOUNTS ARE EXPECTED NORTH OF PAHASKA IN THE HIGHER ELEVATIONS OF THE MOUNTAIN RANGE. SNOWFALL AMOUNTS OF 3 TO 7 INCHES WERE ALREADY REPORTED THIS MORNING. * WIND AND VISIBILITY...PERIODS OF GUSTY NORTH WIND WILL BE POSSIBLE THROUGH THIS AFTERNOON. THESE WINDS MAY CREATE AREAS OF BLOWING SNOW WITH REDUCED VISIBILITIES. * IMPACTS...TRAVEL THROUGH THE ABSAROKA MOUNTAINS WILL BECOME HAZARDOUS TODAY. SLICK AND SNOW PACKED ROADS ARE EXPECTED... AND PERIODS OF BLOWING SNOW WILL REDUCE VISIBILITIES. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER WEATHER ADVISORY MEANS THAT PERIODS OF SNOW AND BLOWING SNOW WILL CAUSE TRAVEL DIFFICULTIES. BE PREPARED FOR SLIPPERY ROADS AND LIMITED VISIBILITIES...AND USE CAUTION WHILE DRIVING. THE LATEST ROAD CONDITIONS PROVIDED BY THE WYOMING DEPARTMENT OF TRANSPORTATION ARE AVAILABLE BY CALLING 5-1-1 OR ON THE INTERNET AT WYOROAD.INFO. && $$ WYZ017-220000- /O.CON.KRIW.WW.Y.0043.000000T0000Z-111222T1200Z/ WIND RIVER BASIN- INCLUDING THE CITIES OF...RIVERTON...SHOSHONI 1019 AM MST WED DEC 21 2011 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 5 AM MST THURSDAY... A WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 5 AM MST THURSDAY. * SUMMARY AND TIMING...SNOW WILL INTENSIFY ACROSS THE AREA INTO THE AFTERNOON HOURS AND CONTINUE INTO THE EARLY EVENING BEFORE GRADUALLY TAPERING OFF. AREAS CLOSER TO THE FOOTHILLS WILL SEE MORE SIGNIFICANT SNOW CONTINUE INTO THE EARLY MORNING HOURS. SNOWFALL OF AN INCH PER HOUR IS QUITE POSSIBLE THIS AFTERNOON. * SNOW ACCUMULATIONS...THE WIND RIVER BASIN IS EXPECTED TO SEE A WIDESPREAD 3 TO 6 INCHES WITH LOCALLY HIGHER AMOUNTS IN SNOW BANDS AND NEAR THE FOOTHILLS AROUND FORT WASHAKIE. MONETA ALREADY REPORTED 4 INCHES AS OF 10 AM. * WIND AND VISIBILITY...WIND OF 15 TO 20 MPH WITH GUSTS TO AROUND 30 MPH ARE ANTICIPATED THIS AFTERNOON. THIS GUSTY WIND WILL CREATE SOME BLOWING SNOW... AND CREATE DECREASED VISIBILITIES ALONG HIGHWAY 20 26. PERIODS OF HEAVIER SNOWFALL MAY ALSO CREATE PERIODS OF REDUCED VISIBILITY. * IMPACTS...ROADWAY TRAVEL WILL BECOME HAZARDOUS THROUGH FREMONT COUNTY...INCLUDING HIGHWAY 20 26. ROADWAYS MAY BECOME SLICK AND SNOW PACKED...WITH SOME REDUCTIONS IN VISIBILITIES POSSIBLE TODAY. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER WEATHER ADVISORY MEANS THAT PERIODS OF SNOW AND BLOWING SNOW WILL CAUSE TRAVEL DIFFICULTIES. BE PREPARED FOR SLIPPERY ROADS AND LIMITED VISIBILITIES...AND USE CAUTION WHILE DRIVING. THE LATEST ROAD CONDITIONS PROVIDED BY THE WYOMING DEPARTMENT OF TRANSPORTATION ARE AVAILABLE BY CALLING 5-1-1 OR ON THE INTERNET AT WYOROAD.INFO. && $$ SKRBAC
8 follow-up statements
847 WWUS45 KRIW 211932 WSWRIW URGENT - WINTER WEATHER MESSAGE NATIONAL WEATHER SERVICE RIVERTON WY 1232 PM MST WED DEC 21 2011 ...WINTER STORM STRENGTHENING OVER WESTERN AND CENTRAL WYOMING TODAY... .AN AREA OF LOW PRESSURE WILL BRING SNOWFALL ACROSS MUCH OF CENTRAL WYOMING TODAY. SNOWFALL WILL CONTINUE THROUGH TONIGHT... WITH ENHANCED SNOWFALL EXPECTED IN FAVORED UPSLOPE AREAS THROUGH THE AFTERNOON AND EVENING HOURS. TRAVEL THROUGH IMPACTED AREAS IS EXPECTED TO BECOME HAZARDOUS AT TIMES. WYZ015-220000- /O.CON.KRIW.WS.W.0014.000000T0000Z-111222T1200Z/ WIND RIVER MOUNTAINS EAST- 1232 PM MST WED DEC 21 2011 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 5 AM MST THURSDAY... A WINTER STORM WARNING REMAINS IN EFFECT UNTIL 5 AM MST THURSDAY. * SUMMARY AND TIMING...SNOWFALL IS EXPECTED TO OVERSPREAD THE AREA THIS MORNING...AND LAST THROUGH EARLY THURSDAY MORNING. THE HEAVIEST SNOWFALL IS EXPECTED TO OCCUR EARLY THIS AFTERNOON INTO THE EVENING...WHEN SNOWFALL RATES COULD EXCEED ONE INCH AN HOUR AT TIMES. SNOWFALL IS ANTICIPATED TO TAPER OFF THURSDAY MORNING. * SNOW ACCUMULATIONS...THE EASTERN SLOPES OF THE WIND RIVER MOUNTAINS WILL SEE 9 TO 15 INCHES OF SNOWFALL BY THURSDAY MORNING...WITH LOCALLY HIGHER ACCUMULATIONS POSSIBLE. * WIND AND VISIBILITY...STRONG NORTHEAST WINDS WILL DEVELOP THIS AFTERNOON AND INTENSIFY INTO THE EVENING HOURS. THE STRONG NORTHEAST WINDS OF 25 TO 45 MPH COMBINED WITH HEAVY SNOW WILL PRODUCE OCCASIONAL WHITEOUT CONDITIONS OVER SOUTH PASS LATER THIS AFTERNOON THROUGH TONIGHT. * IMPACTS...TRAVEL ACROSS SOUTH PASS WILL BECOME HAZARDOUS THROUGH THURSDAY MORNING. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER STORM WARNING FOR HEAVY SNOW MEANS SEVERE WINTER WEATHER CONDITIONS ARE EXPECTED OR OCCURRING. SIGNIFICANT AMOUNTS OF SNOW ARE FORECAST THAT WILL MAKE TRAVEL DANGEROUS. ONLY TRAVEL IN AN EMERGENCY. IF YOU MUST TRAVEL...KEEP AN EXTRA FLASHLIGHT... FOOD...AND WATER IN YOUR VEHICLE IN CASE OF AN EMERGENCY. THE LATEST ROAD CONDITIONS PROVIDED BY THE WYOMING DEPARTMENT OF TRANSPORTATION ARE AVAILABLE BY CALLING 5-1-1 OR ON THE INTERNET AT WYOROAD.INFO. && $$ WYZ018-220000- /O.CON.KRIW.WS.W.0014.000000T0000Z-111222T1200Z/ LANDER FOOTHILLS- INCLUDING THE CITY OF...LANDER 1232 PM MST WED DEC 21 2011 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 5 AM MST THURSDAY... A WINTER STORM WARNING REMAINS IN EFFECT UNTIL 5 AM MST THURSDAY. * SUMMARY AND TIMING...SNOW...HEAVY AT TIMES...IS EXPECTED THROUGH THIS EVENING...BEFORE GRADUALLY DECREASING LATE. SNOWFALL RATES COULD APPROACH OR EVEN EXCEED ONE INCH PER HOUR AT TIMES. * SNOW ACCUMULATIONS...5 TO 8 INCHES...WITH LOCALLY HIGHER AMOUNTS CLOSER TO THE BASE OF THE WIND RIVER MOUNTAINS. * WIND AND VISIBILITY...PERIODS OF HEAVY SNOWFALL WILL REDUCE VISIBILITY TO LESS THAN A QUARTER OF A MILE. * IMPACTS...ROADS WILL BE SLICK WITH LIMITED VISIBILITY. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER STORM WARNING FOR HEAVY SNOW MEANS SEVERE WINTER WEATHER CONDITIONS ARE EXPECTED OR OCCURRING. SIGNIFICANT AMOUNTS OF SNOW ARE FORECAST THAT WILL MAKE TRAVEL DANGEROUS. ONLY TRAVEL IN AN EMERGENCY. IF YOU MUST TRAVEL...KEEP AN EXTRA FLASHLIGHT... FOOD...AND WATER IN YOUR VEHICLE IN CASE OF AN EMERGENCY. THE LATEST ROAD CONDITIONS PROVIDED BY THE WYOMING DEPARTMENT OF TRANSPORTATION ARE AVAILABLE BY CALLING 5-1-1 OR ON THE INTERNET AT WYOROAD.INFO. && $$ WYZ020-220000- /O.CON.KRIW.WS.W.0014.000000T0000Z-111222T1200Z/ NATRONA COUNTY LOWER ELEVATIONS- INCLUDING THE CITY OF...CASPER 1232 PM MST WED DEC 21 2011 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 5 AM MST THURSDAY... A WINTER STORM WARNING REMAINS IN EFFECT UNTIL 5 AM MST THURSDAY. * SUMMARY AND TIMING...SNOW...HEAVY AT TIMES...IS EXPECTED THROUGH THIS EVENING BEFORE GRADUALLY DECREASING. SNOWFALL RATES COULD APPROACH ONE INCH AN HOUR AT TIMES. * SNOW ACCUMULATIONS...SNOWFALL OF 5 TO 10 INCHES IS EXPECTED OVER THE LOWER ELEVATIONS OF NATRONA COUNTY...WITH HIGHER SNOWFALL ACCUMULATIONS POSSIBLE NEAR THE BASE OF CASPER MOUNTAIN. SNOWFALL AMOUNTS OF 3 TO 5 INCHES WERE ALREADY REPORTED AROUND THE AREA. * WIND AND VISIBILITY...WIND OF 15 TO 20 MPH WITH GUSTS TO AROUND 30 MPH ARE ANTICIPATED TODAY. THIS GUSTY WIND WILL CREATE SOME BLOWING SNOW AROUND CASPER AND CREATE DECREASED VISIBILITIES ALONG INTERSTATE 25. PERIODS OF HEAVIER SNOWFALL MAY ALSO CREATE PERIODS OF REDUCED VISIBILITY. * IMPACTS...ROADWAY TRAVEL WILL BECOME HAZARDOUS THROUGH NATRONA COUNTY...INCLUDING INTERSTATE 25. ROADWAYS MAY BECOME SLICK AND SNOW PACKED...WITH SOME REDUCTIONS IN VISIBILITIES POSSIBLE. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER STORM WARNING FOR HEAVY SNOW MEANS SEVERE WINTER WEATHER CONDITIONS ARE EXPECTED OR OCCURRING. SIGNIFICANT AMOUNTS OF SNOW ARE FORECAST THAT WILL MAKE TRAVEL DANGEROUS. ONLY TRAVEL IN AN EMERGENCY. IF YOU MUST TRAVEL...KEEP AN EXTRA FLASHLIGHT... FOOD...AND WATER IN YOUR VEHICLE IN CASE OF AN EMERGENCY. THE LATEST ROAD CONDITIONS PROVIDED BY THE WYOMING DEPARTMENT OF TRANSPORTATION ARE AVAILABLE BY CALLING 5-1-1 OR ON THE INTERNET AT WYOROAD.INFO. && $$ WYZ022-220000- /O.CON.KRIW.WS.W.0014.000000T0000Z-111222T1200Z/ CASPER MOUNTAIN- 1232 PM MST WED DEC 21 2011 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 5 AM MST THURSDAY... A WINTER STORM WARNING REMAINS IN EFFECT UNTIL 5 AM MST THURSDAY. * SUMMARY AND TIMING...SNOW...HEAVY AT TIMES...IS EXPECTED THROUGH THIS EVENING BEFORE GRADUALLY TAPERING OFF. THE HEAVIEST SNOWFALL IS EXPECTED TO OCCUR THIS AFTERNOON AND EARLY EVENING SNOWFALL RATES COULD APPROACH ONE INCH AN HOUR AT TIMES. * SNOW ACCUMULATIONS...CASPER MOUNTAIN WILL SEE SNOWFALL OF 9 TO 15 INCHES OF SNOWFALL BY EARLY THURSDAY MORNING WITH LOCALLY HIGHER AMOUNTS POSSIBLE. * WIND AND VISIBILITY...WIND OF 15 TO 20 MPH WITH GUSTS TO AROUND 30 MPH ARE ANTICIPATED TODAY. THIS GUSTY WIND WILL CREATE SOME BLOWING SNOW AROUND CASPER... AND CREATE DECREASED VISIBILITIES ALONG INTERSTATE 25. PERIODS OF HEAVIER SNOWFALL MAY ALSO CREATE PERIODS OF REDUCED VISIBILITY. * IMPACTS...TRAVEL UP CASPER MOUNTAIN WILL BECOME HAZARDOUS AS SNOW...REDUCED VISIBILITY AND SLICK ROADS COMBINE. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER STORM WARNING FOR HEAVY SNOW MEANS SEVERE WINTER WEATHER CONDITIONS ARE EXPECTED OR OCCURRING. SIGNIFICANT AMOUNTS OF SNOW ARE FORECAST THAT WILL MAKE TRAVEL DANGEROUS. ONLY TRAVEL IN AN EMERGENCY. IF YOU MUST TRAVEL...KEEP AN EXTRA FLASHLIGHT... FOOD...AND WATER IN YOUR VEHICLE IN CASE OF AN EMERGENCY. THE LATEST ROAD CONDITIONS PROVIDED BY THE WYOMING DEPARTMENT OF TRANSPORTATION ARE AVAILABLE BY CALLING 5-1-1 OR ON THE INTERNET AT WYOROAD.INFO. && $$ WYZ019-220000- /O.CON.KRIW.WW.Y.0043.000000T0000Z-111222T1200Z/ GREEN MOUNTAINS AND RATTLESNAKE RANGE- INCLUDING THE CITY OF...JEFFREY CITY 1232 PM MST WED DEC 21 2011 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 5 AM MST THURSDAY... A WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 5 AM MST THURSDAY. * SUMMARY AND TIMING...SNOWFALL IS EXPECTED TO OVERSPREAD THE GREEN MOUNTAINS AND RATTLESNAKE RANGE THIS MORNING...AND LAST THROUGH EARLY THURSDAY MORNING. THE HEAVIEST SNOWFALL IS EXPECTED TO OCCUR THIS MORNING...LASTING INTO THE EARLY EVENING. SNOWFALL IS ANTICIPATED TO TAPER OFF THURSDAY MORNING. * SNOW ACCUMULATIONS...WIDESPREAD SNOWFALL OF 4 TO 6 INCHES IS EXPECTED ACROSS THE AREA...WITH LOCALLY HIGHER AMOUNTS POSSIBLE. * WIND AND VISIBILITY...NORTHERLY WIND OF 20 TO 30 MPH IS EXPECTED TO INCREASE ACROSS THE AREA LATE THIS AFTERNOON... REDUCING VISIBILITIES TO NEAR WHITEOUT CONDITIONS AT TIMES. * IMPACTS...TRAVEL ALONG HIGHWAY 287 WILL BE HAZARDOUS THROUGH THIS EVENING. SLICK AND SNOW PACKED ROADS ARE ANTICIPATED... WITH REDUCED VISIBILITIES POSSIBLE. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER WEATHER ADVISORY MEANS THAT PERIODS OF SNOW AND BLOWING SNOW WILL CAUSE TRAVEL DIFFICULTIES. BE PREPARED FOR SLIPPERY ROADS AND LIMITED VISIBILITIES...AND USE CAUTION WHILE DRIVING. THE LATEST ROAD CONDITIONS PROVIDED BY THE WYOMING DEPARTMENT OF TRANSPORTATION ARE AVAILABLE BY CALLING 5-1-1 OR ON THE INTERNET AT WYOROAD.INFO. && $$ WYZ010-011-220000- /O.CON.KRIW.WW.Y.0043.000000T0000Z-111222T0600Z/ NORTHEAST JOHNSON COUNTY-SOUTHEAST JOHNSON COUNTY- INCLUDING THE CITIES OF...BUFFALO...KAYCEE 1232 PM MST WED DEC 21 2011 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 11 PM MST THIS EVENING... A WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 11 PM MST THIS EVENING. * SUMMARY AND TIMING...SNOW WILL CONTINUE ACROSS THE AREA MUCH OF THE DAY BEFORE DECREASING THIS EVENING. THERE COULD BE SOME BREAKS IN THE SNOWFALL BUT MUCH OF THE DAY WILL SEE AT LEAST LIGHT SNOW AND STRONG NORTH WIND. * SNOW ACCUMULATIONS...WIDESPREAD ACCUMULATIONS OF 2 TO 4 INCHES WILL BE POSSIBLE ACROSS THE AREA...WITH AREAS WEST OF BUFFALO SEEING LOCALLY HIGHER SNOWFALL AMOUNTS. UP TO 2 INCHES HAS ALREADY BEEN REPORTED AROUND BUFFALO. * WIND AND VISIBILITY...NORTH WIND 20 TO 35 MPH WITH SOME HIGHER GUSTS WILL REDUCE VISIBILITIES ALONG INTERSTATES 90 AND 25 THROUGH JOHNSON COUNTY. NEAR WHITEOUT CONDITIONS WILL BE POSSIBLE AT TIMES. * IMPACTS...TRAVEL ALONG INTERSTATES 90 AND 25 WILL BE HAZARDOUS TODAY. ROADS WILL BECOME SLICK AND SNOW PACKED...WITH GUSTY WIND DECREASING VISIBILITIES. NEAR WHITEOUT CONDITIONS WILL BE POSSIBLE AT TIMES. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER WEATHER ADVISORY MEANS THAT PERIODS OF SNOW AND BLOWING SNOW WILL CAUSE TRAVEL DIFFICULTIES. BE PREPARED FOR SLIPPERY ROADS AND LIMITED VISIBILITIES...AND USE CAUTION WHILE DRIVING. THE LATEST ROAD CONDITIONS PROVIDED BY THE WYOMING DEPARTMENT OF TRANSPORTATION ARE AVAILABLE BY CALLING 5-1-1 OR ON THE INTERNET AT WYOROAD.INFO. && $$ WYZ008-009-220000- /O.CON.KRIW.WW.Y.0043.000000T0000Z-111222T0600Z/ BIGHORN MOUNTAINS WEST-BIGHORN MOUNTAINS SOUTHEAST- 1232 PM MST WED DEC 21 2011 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 11 PM MST THIS EVENING... A WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 11 PM MST THIS EVENING. * SUMMARY AND TIMING...SNOWFALL...HEAVY AT TIMES...WILL CONTINUE OVER THE BIGHORN MOUNTAINS THROUGH THIS EVENING. SNOWFALL RATES MAY APPROACH ONE INCH AN HOUR AT TIMES...MAINLY THROUGH THE EARLY AFTERNOON HOURS. * SNOW ACCUMULATIONS...SNOWFALL OF 6 TO 10 INCHES IS EXPECTED OVER THE BIGHORN MOUNTAINS...WITH LOCALLY HIGHER AMOUNTS POSSIBLE SOUTH AND WEST OF BURGESS JUNCTION. TWO TO 5 INCHES HAS ALREADY BEEN REPORTED THIS MORNING. * WIND AND VISIBILITY...NORTHERLY WIND OF 20 TO 25 MPH WITH GUSTS AROUND 35 MPH WILL BE POSSIBLE...MAINLY ACROSS THE EASTERN SLOPES OF THE BIGHORN MOUNTAINS. BLOWING SNOW WILL BE POSSIBLE ACROSS THE PASSES...REDUCING VISIBILITIES AT TIME. * IMPACTS...TRAVEL ALONG THE MOUNTAIN PASSES WILL BECOME HAZARDOUS TODAY. SLICK AND SNOW PACKED ROADS ARE EXPECTED. AREAS OF BLOWING SNOW WILL ALSO BE POSSIBLE... RESULTING IN DECREASED VISIBILITIES ACROSS THE AREA. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER WEATHER ADVISORY MEANS THAT PERIODS OF SNOW AND BLOWING SNOW WILL CAUSE TRAVEL DIFFICULTIES. BE PREPARED FOR SLIPPERY ROADS AND LIMITED VISIBILITIES...AND USE CAUTION WHILE DRIVING. THE LATEST ROAD CONDITIONS PROVIDED BY THE WYOMING DEPARTMENT OF TRANSPORTATION ARE AVAILABLE BY CALLING 5-1-1 OR ON THE INTERNET AT WYOROAD.INFO. && $$ WYZ005>007-220000- /O.CON.KRIW.WW.Y.0043.000000T0000Z-111222T0000Z/ SOUTHWEST BIG HORN BASIN-SOUTHEAST BIG HORN BASIN- OWL CREEK AND BRIDGER MOUNTAINS- INCLUDING THE CITIES OF...THERMOPOLIS...WORLAND 1232 PM MST WED DEC 21 2011 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 5 PM MST THIS AFTERNOON... A WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 5 PM MST THIS AFTERNOON. * SUMMARY AND TIMING...SNOWFALL WILL SPREAD INTO THE SOUTHERN HALF OF THE BIG HORN BASIN THIS MORNING. FAVORED UPSLOPE AREAS WILL SEE INCREASED SNOWFALL THIS MORNING WHEN SNOWFALL RATES MAY APPROACH AN INCH AN HOUR. * SNOW ACCUMULATIONS...SNOWFALL OF 2 TO 4 INCHES IS EXPECTED ACROSS THE AREA...WITH HIGHER SNOWFALL AMOUNTS OF 4 TO 7 INCHES EXPECTED IN THE FAVORED UPSLOPE AREAS BETWEEN THERMOPOLIS AND TEN SLEEP. TEN SLEEP ALREADY REPORTED 4 INCHES THIS MORNING. * WIND AND VISIBILITY...GUSTY NORTHERLY WIND WILL IMPACT THE AREA THIS AFTERNOON AND EVENING...RESULTING IN SOME AREAS OF BLOWING SNOW. THIS WILL REDUCE VISIBILITIES ALONG TRAVEL RATES... INCLUDING 789 THROUGH THE WIND RIVER CANYON. * IMPACTS...TRAVEL WILL BE HAZARDOUS ACROSS THE AREA TODAY... AND WILL ESPECIALLY BE TREACHEROUS THROUGH THE WIND RIVER CANYON. ROADS WILL BE SLICK AND SNOW PACKED...AND GUSTY WIND WILL REDUCE VISIBILITIES THROUGH THE DAY. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER WEATHER ADVISORY MEANS THAT PERIODS OF SNOW AND BLOWING SNOW WILL CAUSE TRAVEL DIFFICULTIES. BE PREPARED FOR SLIPPERY ROADS AND LIMITED VISIBILITIES...AND USE CAUTION WHILE DRIVING. THE LATEST ROAD CONDITIONS PROVIDED BY THE WYOMING DEPARTMENT OF TRANSPORTATION ARE AVAILABLE BY CALLING 5-1-1 OR ON THE INTERNET AT WYOROAD.INFO. && $$ WYZ003-220000- /O.CON.KRIW.WW.Y.0043.000000T0000Z-111222T0000Z/ CODY FOOTHILLS- INCLUDING THE CITIES OF...CODY...MEETEETSE 1232 PM MST WED DEC 21 2011 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 5 PM MST THIS AFTERNOON... A WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 5 PM MST THIS AFTERNOON. * SUMMARY AND TIMING...SNOW WILL CONTINUE TODAY. SNOWFALL RATES APPROACHING AN INCH AN HOUR ARE POSSIBLE. * SNOW ACCUMULATIONS...SNOWFALL OF 3 TO 6 INCHES IS EXPECTED ACROSS THE AREA...WITH LOCALLY HIGHER SNOWFALL POSSIBLE. MEETEETSE REPORTED 4 TO 5 INCHES ALREADY THIS MORNING. * WIND AND VISIBILITY...GUSTY NORTH WIND WILL IMPACT THE FOOTHILLS DURING THE AFTERNOON HOURS...WHICH WILL BRING PERIODS OF BLOWING SNOW. THIS BLOWING SNOW WILL REDUCE VISIBILITIES ALONG ROADWAYS THROUGH THE EARLY EVENING. * IMPACTS...TRAVEL THROUGH THE CODY FOOTHILLS WILL BECOME HAZARDOUS TODAY. SLICK AND SNOW PACKED ROADWAYS ARE EXPECTED... WITH PERIODS OF REDUCED VISIBILITIES DUE TO BLOWING SNOW. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER WEATHER ADVISORY MEANS THAT PERIODS OF SNOW AND BLOWING SNOW WILL CAUSE TRAVEL DIFFICULTIES. BE PREPARED FOR SLIPPERY ROADS AND LIMITED VISIBILITIES...AND USE CAUTION WHILE DRIVING. THE LATEST ROAD CONDITIONS PROVIDED BY THE WYOMING DEPARTMENT OF TRANSPORTATION ARE AVAILABLE BY CALLING 5-1-1 OR ON THE INTERNET AT WYOROAD.INFO. && $$ WYZ002-220000- /O.CON.KRIW.WW.Y.0043.000000T0000Z-111222T0000Z/ ABSAROKA MOUNTAINS- 1232 PM MST WED DEC 21 2011 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 5 PM MST THIS AFTERNOON... A WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 5 PM MST THIS AFTERNOON. * SUMMARY AND TIMING...SNOWFALL WILL CONTINUE TO IMPACT THE ABSAROKA MOUNTAINS THROUGH THE AFTERNOON HOURS. SNOWFALL RATES OF AROUND AN INCH AN HOUR WILL BE POSSIBLE ACROSS THE NORTHERN HALF OF THE MOUNTAINS THROUGH THE MORNING HOURS. * SNOW ACCUMULATIONS...WIDESPREAD SNOWFALL OF 5 TO 10 INCHES IS EXPECTED BY THIS EVENING. HIGHER AMOUNTS ARE EXPECTED NORTH OF PAHASKA IN THE HIGHER ELEVATIONS OF THE MOUNTAIN RANGE. SNOWFALL AMOUNTS OF 3 TO 7 INCHES WERE ALREADY REPORTED THIS MORNING. * WIND AND VISIBILITY...PERIODS OF GUSTY NORTH WIND WILL BE POSSIBLE THROUGH THIS AFTERNOON. THESE WINDS MAY CREATE AREAS OF BLOWING SNOW WITH REDUCED VISIBILITIES. * IMPACTS...TRAVEL THROUGH THE ABSAROKA MOUNTAINS WILL BECOME HAZARDOUS TODAY. SLICK AND SNOW PACKED ROADS ARE EXPECTED... AND PERIODS OF BLOWING SNOW WILL REDUCE VISIBILITIES. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER WEATHER ADVISORY MEANS THAT PERIODS OF SNOW AND BLOWING SNOW WILL CAUSE TRAVEL DIFFICULTIES. BE PREPARED FOR SLIPPERY ROADS AND LIMITED VISIBILITIES...AND USE CAUTION WHILE DRIVING. THE LATEST ROAD CONDITIONS PROVIDED BY THE WYOMING DEPARTMENT OF TRANSPORTATION ARE AVAILABLE BY CALLING 5-1-1 OR ON THE INTERNET AT WYOROAD.INFO. && $$ WYZ017-220000- /O.CON.KRIW.WW.Y.0043.000000T0000Z-111222T1200Z/ WIND RIVER BASIN- INCLUDING THE CITIES OF...RIVERTON...SHOSHONI 1232 PM MST WED DEC 21 2011 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 5 AM MST THURSDAY... A WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 5 AM MST THURSDAY. * SUMMARY AND TIMING...SNOW WILL INTENSIFY ACROSS THE AREA INTO THE AFTERNOON HOURS AND CONTINUE INTO THE EARLY EVENING BEFORE GRADUALLY TAPERING OFF. AREAS CLOSER TO THE FOOTHILLS WILL SEE MORE SIGNIFICANT SNOW CONTINUE INTO THE EARLY MORNING HOURS. SNOWFALL OF AN INCH PER HOUR IS QUITE POSSIBLE THIS AFTERNOON. * SNOW ACCUMULATIONS...THE WIND RIVER BASIN IS EXPECTED TO SEE A WIDESPREAD 3 TO 6 INCHES WITH LOCALLY HIGHER AMOUNTS IN SNOW BANDS AND NEAR THE FOOTHILLS AROUND FORT WASHAKIE. MONETA ALREADY REPORTED 4 INCHES AS OF 10 AM. MOST AREAS REPORTED 1 TO 2 INCHES AS OF NOON. * WIND AND VISIBILITY...WIND OF 15 TO 20 MPH WITH GUSTS TO AROUND 30 MPH ARE ANTICIPATED THIS AFTERNOON. THIS GUSTY WIND WILL CREATE SOME BLOWING SNOW... AND CREATE DECREASED VISIBILITIES ALONG HIGHWAY 20 26. PERIODS OF HEAVIER SNOWFALL MAY ALSO CREATE PERIODS OF REDUCED VISIBILITY. * IMPACTS...ROADWAY TRAVEL WILL BECOME HAZARDOUS THROUGH FREMONT COUNTY...INCLUDING HIGHWAY 20 26. ROADWAYS MAY BECOME SLICK AND SNOW PACKED...WITH SOME REDUCTIONS IN VISIBILITIES POSSIBLE TODAY. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER WEATHER ADVISORY MEANS THAT PERIODS OF SNOW AND BLOWING SNOW WILL CAUSE TRAVEL DIFFICULTIES. BE PREPARED FOR SLIPPERY ROADS AND LIMITED VISIBILITIES...AND USE CAUTION WHILE DRIVING. THE LATEST ROAD CONDITIONS PROVIDED BY THE WYOMING DEPARTMENT OF TRANSPORTATION ARE AVAILABLE BY CALLING 5-1-1 OR ON THE INTERNET AT WYOROAD.INFO. && $$ SKRBAC
074 WWUS45 KRIW 212125 WSWRIW URGENT - WINTER WEATHER MESSAGE NATIONAL WEATHER SERVICE RIVERTON WY 225 PM MST WED DEC 21 2011 ...WINTER STORM STRENGTHENING OVER WESTERN AND CENTRAL WYOMING THIS AFTERNOON... .SNOW WILL CONTINUE ACROSS MUCH OF THE AREA INTO THE EVENING AND OVERNIGHT... ESPECIALLY ACROSS CENTRAL AND SOUTHERN WYOMING. TRAVEL WILL BE IMPACTED DUE TO SNOW...REDUCED VISIBILITY AND AREAS OF BLOWING SNOW IN STRONG AND GUSTY NORTHEAST WIND. WYZ003-212230- /O.CAN.KRIW.WW.Y.0043.000000T0000Z-111222T0000Z/ CODY FOOTHILLS- INCLUDING THE CITIES OF...CODY...MEETEETSE 225 PM MST WED DEC 21 2011 ...WINTER WEATHER ADVISORY IS CANCELLED... THE NATIONAL WEATHER SERVICE IN RIVERTON HAS CANCELLED THE WINTER WEATHER ADVISORY. THE SNOW HAS DECREASED OR ENDED ACROSS THE AREA WITH ONLY LIGHT AMOUNTS OF SNOW STILL POSSIBLE THE REMAINDER OF THE AFTERNOON. THUS...THE WINTER WEATHER ADVISORY FOR THE AREA HAS BEEN CANCELLED. SNOWFALL TOTALS VARIED FROM 2 TO 3 INCHES AROUND CODY TO BETWEEN 4 AND 5 INCHES AROUND MEETEETSE. $$ WYZ015-220015- /O.CON.KRIW.WS.W.0014.000000T0000Z-111222T1200Z/ WIND RIVER MOUNTAINS EAST- 225 PM MST WED DEC 21 2011 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 5 AM MST THURSDAY... A WINTER STORM WARNING REMAINS IN EFFECT UNTIL 5 AM MST THURSDAY. * SUMMARY AND TIMING...SNOW...HEAVY AT TIMES ALONG WITH INCREASING NORTHEAST WIND WILL PREVAIL THROUGH THE EVENING. SNOWFALL RATES COULD EXCEED ONE INCH PER HOUR AT TIMES. SNOWFALL IS ANTICIPATED TO TAPER OFF THURSDAY MORNING. * SNOW ACCUMULATIONS...THE EASTERN SLOPES OF THE WIND RIVER MOUNTAINS WILL SEE 9 TO 15 INCHES OF SNOWFALL BY THURSDAY MORNING. * WIND AND VISIBILITY...STRONG NORTHEAST WINDS WILL DEVELOP THIS AFTERNOON AND INTENSIFY INTO THE EVENING HOURS. THE STRONG NORTHEAST WINDS OF 25 TO 45 MPH COMBINED WITH HEAVY SNOW WILL PRODUCE OCCASIONAL WHITEOUT CONDITIONS OVER SOUTH PASS LATER THIS AFTERNOON THROUGH TONIGHT. * IMPACTS...TRAVEL ACROSS SOUTH PASS WILL BECOME HAZARDOUS THROUGH THURSDAY MORNING. THE WIND CHILLS WILL DROP TO AS LOW AS MINUS 20 TONIGHT. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER STORM WARNING FOR HEAVY SNOW MEANS SEVERE WINTER WEATHER CONDITIONS ARE EXPECTED OR OCCURRING. SIGNIFICANT AMOUNTS OF SNOW ARE FORECAST THAT WILL MAKE TRAVEL DANGEROUS. ONLY TRAVEL IN AN EMERGENCY. IF YOU MUST TRAVEL...KEEP AN EXTRA FLASHLIGHT... FOOD...AND WATER IN YOUR VEHICLE IN CASE OF AN EMERGENCY. THE LATEST ROAD CONDITIONS PROVIDED BY THE WYOMING DEPARTMENT OF TRANSPORTATION ARE AVAILABLE BY CALLING 5-1-1 OR ON THE INTERNET AT WYOROAD.INFO. && $$ WYZ018-220015- /O.CON.KRIW.WS.W.0014.000000T0000Z-111222T1200Z/ LANDER FOOTHILLS- INCLUDING THE CITY OF...LANDER 225 PM MST WED DEC 21 2011 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 5 AM MST THURSDAY... A WINTER STORM WARNING REMAINS IN EFFECT UNTIL 5 AM MST THURSDAY. * SUMMARY AND TIMING...SNOW...HEAVY AT TIMES...IS EXPECTED THROUGH THIS EVENING...BEFORE GRADUALLY DECREASING LATE. SNOWFALL RATES COULD APPROACH OR EVEN EXCEED ONE INCH PER HOUR AT TIMES. * SNOW ACCUMULATIONS...5 TO 8 INCHES...WITH LOCALLY HIGHER AMOUNTS CLOSER TO THE BASE OF THE WIND RIVER MOUNTAINS. 1 TO 2 INCHES WAS REPORTED IN LANDER AS OF 2 PM. * WIND AND VISIBILITY...PERIODS OF HEAVY SNOWFALL WILL REDUCE VISIBILITY TO LESS THAN A QUARTER OF A MILE. * IMPACTS...ROADS WILL BE SLICK WITH LIMITED VISIBILITY. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER STORM WARNING FOR HEAVY SNOW MEANS SEVERE WINTER WEATHER CONDITIONS ARE EXPECTED OR OCCURRING. SIGNIFICANT AMOUNTS OF SNOW ARE FORECAST THAT WILL MAKE TRAVEL DANGEROUS. ONLY TRAVEL IN AN EMERGENCY. IF YOU MUST TRAVEL...KEEP AN EXTRA FLASHLIGHT... FOOD...AND WATER IN YOUR VEHICLE IN CASE OF AN EMERGENCY. THE LATEST ROAD CONDITIONS PROVIDED BY THE WYOMING DEPARTMENT OF TRANSPORTATION ARE AVAILABLE BY CALLING 5-1-1 OR ON THE INTERNET AT WYOROAD.INFO. && $$ WYZ020-220015- /O.CON.KRIW.WS.W.0014.000000T0000Z-111222T1200Z/ NATRONA COUNTY LOWER ELEVATIONS- INCLUDING THE CITY OF...CASPER 225 PM MST WED DEC 21 2011 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 5 AM MST THURSDAY... A WINTER STORM WARNING REMAINS IN EFFECT UNTIL 5 AM MST THURSDAY. * SUMMARY AND TIMING...SNOW...HEAVY AT TIMES...IS EXPECTED THROUGH THIS EVENING BEFORE GRADUALLY DECREASING. SNOWFALL RATES COULD APPROACH ONE INCH AN HOUR AT TIMES. * SNOW ACCUMULATIONS...SNOWFALL OF 5 TO 10 INCHES IS EXPECTED OVER THE LOWER ELEVATIONS OF NATRONA COUNTY...WITH HIGHER SNOWFALL ACCUMULATIONS POSSIBLE NEAR THE BASE OF CASPER MOUNTAIN. SNOWFALL AMOUNTS OF 4 TO 6 INCHES WERE ALREADY REPORTED AROUND THE AREA WITH CASPER REPORTING 6 INCHES. * WIND AND VISIBILITY...WIND OF 15 TO 20 MPH WITH GUSTS TO AROUND 30 MPH ARE ANTICIPATED TODAY. THIS GUSTY WIND WILL CREATE SOME BLOWING SNOW AROUND CASPER AND CREATE DECREASED VISIBILITIES ALONG INTERSTATE 25. PERIODS OF HEAVIER SNOWFALL MAY ALSO CREATE PERIODS OF REDUCED VISIBILITY. * IMPACTS...ROADWAY TRAVEL WILL BECOME HAZARDOUS THROUGH NATRONA COUNTY...INCLUDING INTERSTATE 25. ROADWAYS MAY BECOME SLICK AND SNOW PACKED...WITH SOME REDUCTIONS IN VISIBILITIES POSSIBLE. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER STORM WARNING FOR HEAVY SNOW MEANS SEVERE WINTER WEATHER CONDITIONS ARE EXPECTED OR OCCURRING. SIGNIFICANT AMOUNTS OF SNOW ARE FORECAST THAT WILL MAKE TRAVEL DANGEROUS. ONLY TRAVEL IN AN EMERGENCY. IF YOU MUST TRAVEL...KEEP AN EXTRA FLASHLIGHT... FOOD...AND WATER IN YOUR VEHICLE IN CASE OF AN EMERGENCY. THE LATEST ROAD CONDITIONS PROVIDED BY THE WYOMING DEPARTMENT OF TRANSPORTATION ARE AVAILABLE BY CALLING 5-1-1 OR ON THE INTERNET AT WYOROAD.INFO. && $$ WYZ022-220015- /O.CON.KRIW.WS.W.0014.000000T0000Z-111222T1200Z/ CASPER MOUNTAIN- 225 PM MST WED DEC 21 2011 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 5 AM MST THURSDAY... A WINTER STORM WARNING REMAINS IN EFFECT UNTIL 5 AM MST THURSDAY. * SUMMARY AND TIMING...SNOW...HEAVY AT TIMES...IS EXPECTED THROUGH THIS EVENING BEFORE GRADUALLY TAPERING OFF. THE HEAVIEST SNOWFALL IS EXPECTED TO OCCUR THIS AFTERNOON AND EARLY EVENING SNOWFALL RATES COULD APPROACH ONE INCH AN HOUR AT TIMES. * SNOW ACCUMULATIONS...CASPER MOUNTAIN WILL SEE SNOWFALL OF 9 TO 15 INCHES OF SNOWFALL BY EARLY THURSDAY MORNING WITH LOCALLY HIGHER AMOUNTS POSSIBLE. UP TO 6 INCHES OF SNOW WAS REPORTED ON CASPER MOUNTAIN AS OF 2 PM. * WIND AND VISIBILITY...WIND OF 15 TO 20 MPH WITH GUSTS TO AROUND 30 MPH ARE ANTICIPATED TODAY. THIS GUSTY WIND WILL CREATE SOME BLOWING SNOW AROUND CASPER... AND CREATE DECREASED VISIBILITIES ALONG INTERSTATE 25. PERIODS OF HEAVIER SNOWFALL MAY ALSO CREATE PERIODS OF REDUCED VISIBILITY. * IMPACTS...TRAVEL UP CASPER MOUNTAIN WILL BECOME HAZARDOUS AS SNOW...REDUCED VISIBILITY AND SLICK ROADS COMBINE. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER STORM WARNING FOR HEAVY SNOW MEANS SEVERE WINTER WEATHER CONDITIONS ARE EXPECTED OR OCCURRING. SIGNIFICANT AMOUNTS OF SNOW ARE FORECAST THAT WILL MAKE TRAVEL DANGEROUS. ONLY TRAVEL IN AN EMERGENCY. IF YOU MUST TRAVEL...KEEP AN EXTRA FLASHLIGHT... FOOD...AND WATER IN YOUR VEHICLE IN CASE OF AN EMERGENCY. THE LATEST ROAD CONDITIONS PROVIDED BY THE WYOMING DEPARTMENT OF TRANSPORTATION ARE AVAILABLE BY CALLING 5-1-1 OR ON THE INTERNET AT WYOROAD.INFO. && $$ WYZ028>030-220015- /O.EXB.KRIW.WW.Y.0043.111221T2300Z-111222T1200Z/ ROCK SPRINGS AND GREEN RIVER-FLAMING GORGE-EAST SWEETWATER COUNTY- INCLUDING THE CITIES OF...ROCK SPRINGS...GREEN RIVER...WAMSUTTER 225 PM MST WED DEC 21 2011 ...WINTER WEATHER ADVISORY IN EFFECT UNTIL 5 AM MST THURSDAY... THE NATIONAL WEATHER SERVICE IN RIVERTON HAS ISSUED A WINTER WEATHER ADVISORY FOR SNOW AND WIND WHICH IS IN EFFECT UNTIL 5 AM MST THURSDAY. * SUMMARY AND TIMING...SNOW WILL DEVELOP RAPIDLY LATER THIS AFTERNOON AND CONTINUE OVERNIGHT ALONG WITH A DEVELOPING NORTHEAST WIND. THE NORTHEAST WIND WILL INCREASE THROUGH THE EVENING AND BECOME QUITE STRONG. * SNOW ACCUMULATIONS...SNOWFALL OF 2 TO 4 INCHES IS EXPECTED WITH LOCALLY HIGHER AMOUNTS NEAR THE MOUNTAINS OF SOUTHERN SWEETWATER COUNTY. * WIND AND VISIBILITY...NORTHEAST WIND OF 25 TO 35 MPH WITH GUSTS AROUND 45 MPH CAN BE EXPECTED WHICH WILL CAUSE CONSIDERABLE BLOWING AND DRIFTING SNOW AND WHITEOUT CONDITIONS AT TIMES LATER THIS EVENING. * IMPACTS...TRAVEL ALONG INTERSTATE 80 AND THE STATE HIGHWAYS ACROSS SWEETWATER COUNTY WILL BECOME TREACHEROUS OVERNIGHT AS THE SNOW AND WIND COMBINE TO PRODUCE SLICK TRAVEL AND SHARPLY REDUCED VISIBILITY ALONG WITH BITTER WIND CHILLS. THE WIND CHILLS WILL DROP TO AS LOW AS MINUS 10 TONIGHT. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER WEATHER ADVISORY MEANS THAT PERIODS OF SNOW AND BLOWING SNOW WILL CAUSE TRAVEL DIFFICULTIES. BE PREPARED FOR SLIPPERY ROADS AND LIMITED VISIBILITIES...AND USE CAUTION WHILE DRIVING. THE LATEST ROAD CONDITIONS PROVIDED BY THE WYOMING DEPARTMENT OF TRANSPORTATION ARE AVAILABLE BY CALLING 5-1-1 OR ON THE INTERNET AT WYOROAD.INFO. && $$ WYZ019-220015- /O.CON.KRIW.WW.Y.0043.000000T0000Z-111222T1200Z/ GREEN MOUNTAINS AND RATTLESNAKE RANGE- INCLUDING THE CITY OF...JEFFREY CITY 225 PM MST WED DEC 21 2011 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 5 AM MST THURSDAY... A WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 5 AM MST THURSDAY. * SUMMARY AND TIMING...SNOW WILL CONTINUE THROUGH THE EVENING HOURS WITH BURSTS OF HEAVIER SNOW. THE SNOW WILL GRADUALLY TAPER OFF AFTER MIDNIGHT. * SNOW ACCUMULATIONS...WIDESPREAD SNOWFALL OF 4 TO 6 INCHES IS EXPECTED ACROSS THE AREA...WITH LOCALLY HIGHER AMOUNTS POSSIBLE. * WIND AND VISIBILITY...NORTHERLY WIND OF 20 TO 30 MPH IS EXPECTED TO INCREASE ACROSS THE AREA LATE THIS AFTERNOON... REDUCING VISIBILITIES TO NEAR WHITEOUT CONDITIONS AT TIMES. * IMPACTS...TRAVEL ALONG HIGHWAY 287 WILL BE HAZARDOUS THROUGH THIS EVENING. SLICK AND SNOW PACKED ROADS ARE ANTICIPATED... WITH REDUCED VISIBILITIES POSSIBLE. WIND CHILLS WILL DIP TO BETWEEN ZERO AND 10 BELOW OVERNIGHT. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER WEATHER ADVISORY MEANS THAT PERIODS OF SNOW AND BLOWING SNOW WILL CAUSE TRAVEL DIFFICULTIES. BE PREPARED FOR SLIPPERY ROADS AND LIMITED VISIBILITIES...AND USE CAUTION WHILE DRIVING. THE LATEST ROAD CONDITIONS PROVIDED BY THE WYOMING DEPARTMENT OF TRANSPORTATION ARE AVAILABLE BY CALLING 5-1-1 OR ON THE INTERNET AT WYOROAD.INFO. && $$ WYZ010-011-220015- /O.CON.KRIW.WW.Y.0043.000000T0000Z-111222T0600Z/ NORTHEAST JOHNSON COUNTY-SOUTHEAST JOHNSON COUNTY- INCLUDING THE CITIES OF...BUFFALO...KAYCEE 225 PM MST WED DEC 21 2011 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 11 PM MST THIS EVENING... A WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 11 PM MST THIS EVENING. * SUMMARY AND TIMING...SNOW WILL CONTINUE ACROSS THE AREA MUCH OF THE DAY BEFORE DECREASING THIS EVENING. THERE COULD BE SOME BREAKS IN THE SNOWFALL BUT MUCH OF THE DAY WILL SEE AT LEAST LIGHT SNOW AND STRONG NORTH WIND. * SNOW ACCUMULATIONS...WIDESPREAD ACCUMULATIONS OF 2 TO 4 INCHES WILL BE POSSIBLE ACROSS THE AREA...WITH AREAS WEST OF BUFFALO SEEING LOCALLY HIGHER SNOWFALL AMOUNTS. UP TO 2 INCHES HAS ALREADY BEEN REPORTED AROUND BUFFALO. * WIND AND VISIBILITY...NORTH WIND 20 TO 35 MPH WITH SOME HIGHER GUSTS WILL REDUCE VISIBILITIES ALONG INTERSTATES 90 AND 25 THROUGH JOHNSON COUNTY. NEAR WHITEOUT CONDITIONS WILL BE POSSIBLE AT TIMES. * IMPACTS...TRAVEL ALONG INTERSTATES 90 AND 25 WILL BE HAZARDOUS TODAY. ROADS WILL BECOME SLICK AND SNOW PACKED...WITH GUSTY WIND DECREASING VISIBILITIES. NEAR WHITEOUT CONDITIONS WILL BE POSSIBLE AT TIMES. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER WEATHER ADVISORY MEANS THAT PERIODS OF SNOW AND BLOWING SNOW WILL CAUSE TRAVEL DIFFICULTIES. BE PREPARED FOR SLIPPERY ROADS AND LIMITED VISIBILITIES...AND USE CAUTION WHILE DRIVING. THE LATEST ROAD CONDITIONS PROVIDED BY THE WYOMING DEPARTMENT OF TRANSPORTATION ARE AVAILABLE BY CALLING 5-1-1 OR ON THE INTERNET AT WYOROAD.INFO. && $$ WYZ008-009-220015- /O.CON.KRIW.WW.Y.0043.000000T0000Z-111222T0600Z/ BIGHORN MOUNTAINS WEST-BIGHORN MOUNTAINS SOUTHEAST- 225 PM MST WED DEC 21 2011 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 11 PM MST THIS EVENING... A WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 11 PM MST THIS EVENING. * SUMMARY AND TIMING...SNOWFALL...HEAVY AT TIMES...WILL CONTINUE OVER THE BIGHORN MOUNTAINS THROUGH THIS EVENING. SNOWFALL RATES MAY APPROACH ONE INCH AN HOUR AT TIMES...MAINLY THROUGH THE EARLY AFTERNOON HOURS. * SNOW ACCUMULATIONS...SNOWFALL OF 6 TO 10 INCHES IS EXPECTED OVER THE BIGHORN MOUNTAINS...WITH LOCALLY HIGHER AMOUNTS POSSIBLE SOUTH AND WEST OF BURGESS JUNCTION. 4 TO 8 INCHES HAS ALREADY BEEN REPORTED THIS AFTERNOON. * WIND AND VISIBILITY...NORTHERLY WIND OF 20 TO 25 MPH WITH GUSTS AROUND 35 MPH WILL BE POSSIBLE...MAINLY ACROSS THE EASTERN SLOPES OF THE BIGHORN MOUNTAINS. BLOWING SNOW WILL BE POSSIBLE ACROSS THE PASSES...REDUCING VISIBILITIES AT TIME. * IMPACTS...TRAVEL ALONG THE MOUNTAIN PASSES WILL BECOME HAZARDOUS TODAY. SLICK AND SNOW PACKED ROADS ARE EXPECTED. AREAS OF BLOWING SNOW WILL ALSO BE POSSIBLE... RESULTING IN DECREASED VISIBILITIES ACROSS THE AREA. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER WEATHER ADVISORY MEANS THAT PERIODS OF SNOW AND BLOWING SNOW WILL CAUSE TRAVEL DIFFICULTIES. BE PREPARED FOR SLIPPERY ROADS AND LIMITED VISIBILITIES...AND USE CAUTION WHILE DRIVING. THE LATEST ROAD CONDITIONS PROVIDED BY THE WYOMING DEPARTMENT OF TRANSPORTATION ARE AVAILABLE BY CALLING 5-1-1 OR ON THE INTERNET AT WYOROAD.INFO. && $$ WYZ005>007-220000- /O.CON.KRIW.WW.Y.0043.000000T0000Z-111222T0000Z/ SOUTHWEST BIG HORN BASIN-SOUTHEAST BIG HORN BASIN- OWL CREEK AND BRIDGER MOUNTAINS- INCLUDING THE CITIES OF...THERMOPOLIS...WORLAND 225 PM MST WED DEC 21 2011 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 5 PM MST THIS AFTERNOON... A WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 5 PM MST THIS AFTERNOON. * SUMMARY AND TIMING...SNOW WILL CONTINUE THE REMAINDER OF THE AFTERNOON...ESPECIALLY FROM THERMOPOLIS OVER TO TEN SLEEP. MOST OF THE SNOW IN WORLAND IS OVER. * SNOW ACCUMULATIONS...SNOWFALL OF 2 TO 4 INCHES IS EXPECTED ACROSS THE AREA...WITH HIGHER SNOWFALL AMOUNTS OF 4 TO 7 INCHES EXPECTED IN THE FAVORED UPSLOPE AREAS BETWEEN THERMOPOLIS AND TEN SLEEP. TEN SLEEP ALREADY REPORTED 4 INCHES THIS MORNING. * WIND AND VISIBILITY...GUSTY NORTHERLY WIND WILL IMPACT THE AREA THIS AFTERNOON AND EVENING...RESULTING IN SOME AREAS OF BLOWING SNOW. THIS WILL REDUCE VISIBILITIES ALONG TRAVEL RATES... INCLUDING 789 THROUGH THE WIND RIVER CANYON. * IMPACTS...TRAVEL WILL BE HAZARDOUS ACROSS THE AREA TODAY... AND WILL ESPECIALLY BE TREACHEROUS THROUGH THE WIND RIVER CANYON. ROADS WILL BE SLICK AND SNOW PACKED...AND GUSTY WIND WILL REDUCE VISIBILITIES THROUGH THE DAY. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER WEATHER ADVISORY MEANS THAT PERIODS OF SNOW AND BLOWING SNOW WILL CAUSE TRAVEL DIFFICULTIES. BE PREPARED FOR SLIPPERY ROADS AND LIMITED VISIBILITIES...AND USE CAUTION WHILE DRIVING. THE LATEST ROAD CONDITIONS PROVIDED BY THE WYOMING DEPARTMENT OF TRANSPORTATION ARE AVAILABLE BY CALLING 5-1-1 OR ON THE INTERNET AT WYOROAD.INFO. && $$ WYZ002-220000- /O.CON.KRIW.WW.Y.0043.000000T0000Z-111222T0000Z/ ABSAROKA MOUNTAINS- 225 PM MST WED DEC 21 2011 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 5 PM MST THIS AFTERNOON... A WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 5 PM MST THIS AFTERNOON. * SUMMARY AND TIMING...SNOWFALL WILL CONTINUE TO IMPACT THE ABSAROKA MOUNTAINS THROUGH THE AFTERNOON HOURS. SNOWFALL RATES OF AROUND AN INCH AN HOUR WILL BE POSSIBLE ACROSS THE NORTHERN HALF OF THE MOUNTAINS THROUGH THE MORNING HOURS. * SNOW ACCUMULATIONS...WIDESPREAD SNOWFALL OF 5 TO 10 INCHES IS EXPECTED BY THIS EVENING. HIGHER AMOUNTS ARE EXPECTED NORTH OF PAHASKA IN THE HIGHER ELEVATIONS OF THE MOUNTAIN RANGE. SNOWFALL AMOUNTS OF 4 TO 10 INCHES WERE ALREADY REPORTED THIS AFTERNOON. * WIND AND VISIBILITY...PERIODS OF GUSTY NORTH WIND WILL BE POSSIBLE THROUGH THIS AFTERNOON. THESE WINDS MAY CREATE AREAS OF BLOWING SNOW WITH REDUCED VISIBILITIES. * IMPACTS...TRAVEL THROUGH THE ABSAROKA MOUNTAINS WILL BECOME HAZARDOUS TODAY. SLICK AND SNOW PACKED ROADS ARE EXPECTED... AND PERIODS OF BLOWING SNOW WILL REDUCE VISIBILITIES. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER WEATHER ADVISORY MEANS THAT PERIODS OF SNOW AND BLOWING SNOW WILL CAUSE TRAVEL DIFFICULTIES. BE PREPARED FOR SLIPPERY ROADS AND LIMITED VISIBILITIES...AND USE CAUTION WHILE DRIVING. THE LATEST ROAD CONDITIONS PROVIDED BY THE WYOMING DEPARTMENT OF TRANSPORTATION ARE AVAILABLE BY CALLING 5-1-1 OR ON THE INTERNET AT WYOROAD.INFO. && $$ WYZ017-220015- /O.CON.KRIW.WW.Y.0043.000000T0000Z-111222T1200Z/ WIND RIVER BASIN- INCLUDING THE CITIES OF...RIVERTON...SHOSHONI 225 PM MST WED DEC 21 2011 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 5 AM MST THURSDAY... A WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 5 AM MST THURSDAY. * SUMMARY AND TIMING...SNOW WILL INTENSIFY ACROSS THE AREA INTO THE AFTERNOON HOURS AND CONTINUE INTO THE EARLY EVENING BEFORE GRADUALLY TAPERING OFF. AREAS CLOSER TO THE FOOTHILLS WILL SEE MORE SIGNIFICANT SNOW CONTINUE INTO THE EARLY MORNING HOURS. SNOWFALL OF AN INCH PER HOUR IS QUITE POSSIBLE THIS AFTERNOON. * SNOW ACCUMULATIONS...THE WIND RIVER BASIN IS EXPECTED TO SEE A WIDESPREAD 3 TO 6 INCHES WITH LOCALLY HIGHER AMOUNTS IN SNOW BANDS AND NEAR THE FOOTHILLS AROUND FORT WASHAKIE. MONETA ALREADY REPORTED 4 INCHES AS OF 10 AM. MOST AREAS REPORTED 2 TO 3 INCHES AS OF 2 PM. * WIND AND VISIBILITY...WIND OF 15 TO 20 MPH WITH GUSTS TO AROUND 30 MPH ARE ANTICIPATED THIS AFTERNOON. THIS GUSTY WIND WILL CREATE SOME BLOWING SNOW... AND CREATE DECREASED VISIBILITIES ALONG HIGHWAY 20 26. PERIODS OF HEAVIER SNOWFALL MAY ALSO CREATE PERIODS OF REDUCED VISIBILITY. * IMPACTS...ROADWAY TRAVEL WILL BECOME HAZARDOUS THROUGH FREMONT COUNTY...INCLUDING HIGHWAY 20 26. ROADWAYS MAY BECOME SLICK AND SNOW PACKED...WITH SOME REDUCTIONS IN VISIBILITIES POSSIBLE TODAY. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER WEATHER ADVISORY MEANS THAT PERIODS OF SNOW AND BLOWING SNOW WILL CAUSE TRAVEL DIFFICULTIES. BE PREPARED FOR SLIPPERY ROADS AND LIMITED VISIBILITIES...AND USE CAUTION WHILE DRIVING. THE LATEST ROAD CONDITIONS PROVIDED BY THE WYOMING DEPARTMENT OF TRANSPORTATION ARE AVAILABLE BY CALLING 5-1-1 OR ON THE INTERNET AT WYOROAD.INFO. && $$ SKRBAC
868 WWUS45 KRIW 220011 WSWRIW URGENT - WINTER WEATHER MESSAGE NATIONAL WEATHER SERVICE RIVERTON WY 511 PM MST WED DEC 21 2011 ...WINTER STORM TO CONTINUE TO IMPACT SOUTH AND CENTRAL WYOMING THIS EVENING... .AN UPPER LEVEL LOW PRESSURE SYSTEM WILL CONTINUE TO SLIDE SOUTH ACROSS EASTERN UTAH TONIGHT. THE HEAVIEST SNOW AND STRONGER WINDS WITH THIS SYSTEM WILL SHIFT FURTHER SOUTH INTO SOUTHERN WYOMING THIS EVENING...WHILE HEAVIER SNOW PERSISTS IN UPSLOPE FAVORED AREAS ACROSS CENTRAL WYOMING. SNOW WILL CONTINUE TO GRADUALLY TAPER OFF FROM THE NORTH THROUGH EARLY THURSDAY MORNING...WITH MOST OF THE SNOWFALL SOUTH OF INTERSTATE 80 BY 8 AM. WYZ002-005>007-220115- /O.EXP.KRIW.WW.Y.0043.000000T0000Z-111222T0000Z/ ABSAROKA MOUNTAINS-SOUTHWEST BIG HORN BASIN- SOUTHEAST BIG HORN BASIN-OWL CREEK AND BRIDGER MOUNTAINS- INCLUDING THE CITIES OF...THERMOPOLIS...WORLAND 511 PM MST WED DEC 21 2011 ...WINTER WEATHER ADVISORY HAS EXPIRED... THE WINTER WEATHER ADVISORY IS NO LONGER IN EFFECT. SNOWFALL HAS TAPERED OFF ACROSS THE BIG HORN BASIN WITH ONLY SOME OCCASIONAL LIGHT SNOW OR FLURRIES EXPECTED THE REST OF THE EVENING. LITTLE OR NO ADDITIONAL ACCUMULATION IS EXPECTED. $$ WYZ015-220815- /O.CON.KRIW.WS.W.0014.000000T0000Z-111222T1200Z/ WIND RIVER MOUNTAINS EAST- 511 PM MST WED DEC 21 2011 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 5 AM MST THURSDAY... A WINTER STORM WARNING REMAINS IN EFFECT UNTIL 5 AM MST THURSDAY. * SUMMARY AND TIMING...SNOW...HEAVY AT TIMES ALONG WITH INCREASING NORTHEAST WIND WILL PREVAIL THROUGH THE EVENING. SNOWFALL RATES COULD EXCEED ONE INCH PER HOUR AT TIMES. SNOWFALL IS ANTICIPATED TO TAPER OFF THURSDAY MORNING. * SNOW ACCUMULATIONS...THE EASTERN SLOPES OF THE WIND RIVER MOUNTAINS WILL SEE 9 TO 15 INCHES OF SNOWFALL BY THURSDAY MORNING. * WIND AND VISIBILITY...STRONG NORTHEAST WINDS WILL DEVELOP THIS AFTERNOON AND INTENSIFY INTO THE EVENING HOURS. THE STRONG NORTHEAST WINDS OF 25 TO 45 MPH COMBINED WITH HEAVY SNOW WILL PRODUCE OCCASIONAL WHITEOUT CONDITIONS OVER SOUTH PASS LATER THIS AFTERNOON THROUGH TONIGHT. * IMPACTS...TRAVEL ACROSS SOUTH PASS WILL BECOME HAZARDOUS THROUGH THURSDAY MORNING. THE WIND CHILLS WILL DROP TO AS LOW AS MINUS 20 TONIGHT. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER STORM WARNING FOR HEAVY SNOW MEANS SEVERE WINTER WEATHER CONDITIONS ARE EXPECTED OR OCCURRING. SIGNIFICANT AMOUNTS OF SNOW ARE FORECAST THAT WILL MAKE TRAVEL DANGEROUS. ONLY TRAVEL IN AN EMERGENCY. IF YOU MUST TRAVEL...KEEP AN EXTRA FLASHLIGHT... FOOD...AND WATER IN YOUR VEHICLE IN CASE OF AN EMERGENCY. THE LATEST ROAD CONDITIONS PROVIDED BY THE WYOMING DEPARTMENT OF TRANSPORTATION ARE AVAILABLE BY CALLING 5-1-1 OR ON THE INTERNET AT WYOROAD.INFO. && $$ WYZ018-220815- /O.CON.KRIW.WS.W.0014.000000T0000Z-111222T1200Z/ LANDER FOOTHILLS- INCLUDING THE CITY OF...LANDER 511 PM MST WED DEC 21 2011 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 5 AM MST THURSDAY... A WINTER STORM WARNING REMAINS IN EFFECT UNTIL 5 AM MST THURSDAY. * SUMMARY AND TIMING...SNOW...HEAVY AT TIMES...IS EXPECTED THROUGH THIS EVENING...BEFORE GRADUALLY DECREASING LATE. SNOWFALL RATES COULD APPROACH OR EVEN EXCEED ONE INCH PER HOUR AT TIMES. * SNOW ACCUMULATIONS...5 TO 8 INCHES...WITH LOCALLY HIGHER AMOUNTS CLOSER TO THE BASE OF THE WIND RIVER MOUNTAINS. 1 TO 2 INCHES WAS REPORTED IN LANDER AS OF 2 PM. * WIND AND VISIBILITY...PERIODS OF HEAVY SNOWFALL WILL REDUCE VISIBILITY TO LESS THAN A QUARTER OF A MILE. * IMPACTS...ROADS WILL BE SLICK WITH LIMITED VISIBILITY. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER STORM WARNING FOR HEAVY SNOW MEANS SEVERE WINTER WEATHER CONDITIONS ARE EXPECTED OR OCCURRING. SIGNIFICANT AMOUNTS OF SNOW ARE FORECAST THAT WILL MAKE TRAVEL DANGEROUS. ONLY TRAVEL IN AN EMERGENCY. IF YOU MUST TRAVEL...KEEP AN EXTRA FLASHLIGHT... FOOD...AND WATER IN YOUR VEHICLE IN CASE OF AN EMERGENCY. THE LATEST ROAD CONDITIONS PROVIDED BY THE WYOMING DEPARTMENT OF TRANSPORTATION ARE AVAILABLE BY CALLING 5-1-1 OR ON THE INTERNET AT WYOROAD.INFO. && $$ WYZ020-220815- /O.CON.KRIW.WS.W.0014.000000T0000Z-111222T1200Z/ NATRONA COUNTY LOWER ELEVATIONS- INCLUDING THE CITY OF...CASPER 511 PM MST WED DEC 21 2011 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 5 AM MST THURSDAY... A WINTER STORM WARNING REMAINS IN EFFECT UNTIL 5 AM MST THURSDAY. * SUMMARY AND TIMING...SNOW...HEAVY AT TIMES...IS EXPECTED THROUGH THIS EVENING BEFORE GRADUALLY DECREASING. SNOWFALL RATES COULD APPROACH ONE INCH AN HOUR AT TIMES. * SNOW ACCUMULATIONS...SNOWFALL OF 5 TO 10 INCHES IS EXPECTED OVER THE LOWER ELEVATIONS OF NATRONA COUNTY...WITH HIGHER SNOWFALL ACCUMULATIONS POSSIBLE NEAR THE BASE OF CASPER MOUNTAIN. SNOWFALL AMOUNTS OF 4 TO 6 INCHES WERE ALREADY REPORTED AROUND THE AREA WITH CASPER REPORTING 6 INCHES. * WIND AND VISIBILITY...WIND OF 15 TO 20 MPH WITH GUSTS TO AROUND 30 MPH ARE ANTICIPATED TODAY. THIS GUSTY WIND WILL CREATE SOME BLOWING SNOW AROUND CASPER AND CREATE DECREASED VISIBILITIES ALONG INTERSTATE 25. PERIODS OF HEAVIER SNOWFALL MAY ALSO CREATE PERIODS OF REDUCED VISIBILITY. * IMPACTS...ROADWAY TRAVEL WILL BECOME HAZARDOUS THROUGH NATRONA COUNTY...INCLUDING INTERSTATE 25. ROADWAYS MAY BECOME SLICK AND SNOW PACKED...WITH SOME REDUCTIONS IN VISIBILITIES POSSIBLE. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER STORM WARNING FOR HEAVY SNOW MEANS SEVERE WINTER WEATHER CONDITIONS ARE EXPECTED OR OCCURRING. SIGNIFICANT AMOUNTS OF SNOW ARE FORECAST THAT WILL MAKE TRAVEL DANGEROUS. ONLY TRAVEL IN AN EMERGENCY. IF YOU MUST TRAVEL...KEEP AN EXTRA FLASHLIGHT... FOOD...AND WATER IN YOUR VEHICLE IN CASE OF AN EMERGENCY. THE LATEST ROAD CONDITIONS PROVIDED BY THE WYOMING DEPARTMENT OF TRANSPORTATION ARE AVAILABLE BY CALLING 5-1-1 OR ON THE INTERNET AT WYOROAD.INFO. && $$ WYZ022-220815- /O.CON.KRIW.WS.W.0014.000000T0000Z-111222T1200Z/ CASPER MOUNTAIN- 511 PM MST WED DEC 21 2011 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 5 AM MST THURSDAY... A WINTER STORM WARNING REMAINS IN EFFECT UNTIL 5 AM MST THURSDAY. * SUMMARY AND TIMING...SNOW...HEAVY AT TIMES...IS EXPECTED THROUGH THIS EVENING BEFORE GRADUALLY TAPERING OFF. THE HEAVIEST SNOWFALL IS EXPECTED TO OCCUR THIS AFTERNOON AND EARLY EVENING SNOWFALL RATES COULD APPROACH ONE INCH AN HOUR AT TIMES. * SNOW ACCUMULATIONS...CASPER MOUNTAIN WILL SEE SNOWFALL OF 9 TO 15 INCHES OF SNOWFALL BY EARLY THURSDAY MORNING WITH LOCALLY HIGHER AMOUNTS POSSIBLE. UP TO 6 INCHES OF SNOW WAS REPORTED ON CASPER MOUNTAIN AS OF 2 PM. * WIND AND VISIBILITY...WIND OF 15 TO 20 MPH WITH GUSTS TO AROUND 30 MPH ARE ANTICIPATED TODAY. THIS GUSTY WIND WILL CREATE SOME BLOWING SNOW AROUND CASPER... AND CREATE DECREASED VISIBILITIES ALONG INTERSTATE 25. PERIODS OF HEAVIER SNOWFALL MAY ALSO CREATE PERIODS OF REDUCED VISIBILITY. * IMPACTS...TRAVEL UP CASPER MOUNTAIN WILL BECOME HAZARDOUS AS SNOW...REDUCED VISIBILITY AND SLICK ROADS COMBINE. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER STORM WARNING FOR HEAVY SNOW MEANS SEVERE WINTER WEATHER CONDITIONS ARE EXPECTED OR OCCURRING. SIGNIFICANT AMOUNTS OF SNOW ARE FORECAST THAT WILL MAKE TRAVEL DANGEROUS. ONLY TRAVEL IN AN EMERGENCY. IF YOU MUST TRAVEL...KEEP AN EXTRA FLASHLIGHT... FOOD...AND WATER IN YOUR VEHICLE IN CASE OF AN EMERGENCY. THE LATEST ROAD CONDITIONS PROVIDED BY THE WYOMING DEPARTMENT OF TRANSPORTATION ARE AVAILABLE BY CALLING 5-1-1 OR ON THE INTERNET AT WYOROAD.INFO. && $$ WYZ019-220815- /O.CON.KRIW.WW.Y.0043.000000T0000Z-111222T1200Z/ GREEN MOUNTAINS AND RATTLESNAKE RANGE- INCLUDING THE CITY OF...JEFFREY CITY 511 PM MST WED DEC 21 2011 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 5 AM MST THURSDAY... A WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 5 AM MST THURSDAY. * SUMMARY AND TIMING...SNOW WILL CONTINUE THROUGH THE EVENING HOURS WITH BURSTS OF HEAVIER SNOW. THE SNOW WILL GRADUALLY TAPER OFF AFTER MIDNIGHT. * SNOW ACCUMULATIONS...WIDESPREAD SNOWFALL OF 4 TO 6 INCHES IS EXPECTED ACROSS THE AREA...WITH LOCALLY HIGHER AMOUNTS POSSIBLE. * WIND AND VISIBILITY...NORTHERLY WIND OF 20 TO 30 MPH IS EXPECTED TO INCREASE ACROSS THE AREA LATE THIS AFTERNOON... REDUCING VISIBILITIES TO NEAR WHITEOUT CONDITIONS AT TIMES. * IMPACTS...TRAVEL ALONG HIGHWAY 287 WILL BE HAZARDOUS THROUGH THIS EVENING. SLICK AND SNOW PACKED ROADS ARE ANTICIPATED... WITH REDUCED VISIBILITIES POSSIBLE. WIND CHILLS WILL DIP TO BETWEEN ZERO AND 10 BELOW OVERNIGHT. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER WEATHER ADVISORY MEANS THAT PERIODS OF SNOW AND BLOWING SNOW WILL CAUSE TRAVEL DIFFICULTIES. BE PREPARED FOR SLIPPERY ROADS AND LIMITED VISIBILITIES...AND USE CAUTION WHILE DRIVING. THE LATEST ROAD CONDITIONS PROVIDED BY THE WYOMING DEPARTMENT OF TRANSPORTATION ARE AVAILABLE BY CALLING 5-1-1 OR ON THE INTERNET AT WYOROAD.INFO. && $$ WYZ010-011-220600- /O.CON.KRIW.WW.Y.0043.000000T0000Z-111222T0600Z/ NORTHEAST JOHNSON COUNTY-SOUTHEAST JOHNSON COUNTY- INCLUDING THE CITIES OF...BUFFALO...KAYCEE 511 PM MST WED DEC 21 2011 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 11 PM MST THIS EVENING... A WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 11 PM MST THIS EVENING. * SUMMARY AND TIMING...SNOW WILL CONTINUE ACROSS THE AREA MUCH OF THE DAY BEFORE DECREASING THIS EVENING. THERE COULD BE SOME BREAKS IN THE SNOWFALL BUT MUCH OF THE DAY WILL SEE AT LEAST LIGHT SNOW AND STRONG NORTH WIND. * SNOW ACCUMULATIONS...WIDESPREAD ACCUMULATIONS OF 2 TO 4 INCHES WILL BE POSSIBLE ACROSS THE AREA...WITH AREAS WEST OF BUFFALO SEEING LOCALLY HIGHER SNOWFALL AMOUNTS. UP TO 2 INCHES HAS ALREADY BEEN REPORTED AROUND BUFFALO. * WIND AND VISIBILITY...NORTH WIND 20 TO 35 MPH WITH SOME HIGHER GUSTS WILL REDUCE VISIBILITIES ALONG INTERSTATES 90 AND 25 THROUGH JOHNSON COUNTY. NEAR WHITEOUT CONDITIONS WILL BE POSSIBLE AT TIMES. * IMPACTS...TRAVEL ALONG INTERSTATES 90 AND 25 WILL BE HAZARDOUS TODAY. ROADS WILL BECOME SLICK AND SNOW PACKED...WITH GUSTY WIND DECREASING VISIBILITIES. NEAR WHITEOUT CONDITIONS WILL BE POSSIBLE AT TIMES. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER WEATHER ADVISORY MEANS THAT PERIODS OF SNOW AND BLOWING SNOW WILL CAUSE TRAVEL DIFFICULTIES. BE PREPARED FOR SLIPPERY ROADS AND LIMITED VISIBILITIES...AND USE CAUTION WHILE DRIVING. THE LATEST ROAD CONDITIONS PROVIDED BY THE WYOMING DEPARTMENT OF TRANSPORTATION ARE AVAILABLE BY CALLING 5-1-1 OR ON THE INTERNET AT WYOROAD.INFO. && $$ WYZ008-009-220600- /O.CON.KRIW.WW.Y.0043.000000T0000Z-111222T0600Z/ BIGHORN MOUNTAINS WEST-BIGHORN MOUNTAINS SOUTHEAST- 511 PM MST WED DEC 21 2011 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 11 PM MST THIS EVENING... A WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 11 PM MST THIS EVENING. * SUMMARY AND TIMING...SNOWFALL...HEAVY AT TIMES...WILL CONTINUE OVER THE BIGHORN MOUNTAINS THROUGH THIS EVENING. SNOWFALL RATES MAY APPROACH ONE INCH AN HOUR AT TIMES...MAINLY THROUGH THE EARLY AFTERNOON HOURS. * SNOW ACCUMULATIONS...SNOWFALL OF 6 TO 10 INCHES IS EXPECTED OVER THE BIGHORN MOUNTAINS...WITH LOCALLY HIGHER AMOUNTS POSSIBLE SOUTH AND WEST OF BURGESS JUNCTION. 4 TO 8 INCHES HAS ALREADY BEEN REPORTED THIS AFTERNOON. * WIND AND VISIBILITY...NORTHERLY WIND OF 20 TO 25 MPH WITH GUSTS AROUND 35 MPH WILL BE POSSIBLE...MAINLY ACROSS THE EASTERN SLOPES OF THE BIGHORN MOUNTAINS. BLOWING SNOW WILL BE POSSIBLE ACROSS THE PASSES...REDUCING VISIBILITIES AT TIME. * IMPACTS...TRAVEL ALONG THE MOUNTAIN PASSES WILL BECOME HAZARDOUS TODAY. SLICK AND SNOW PACKED ROADS ARE EXPECTED. AREAS OF BLOWING SNOW WILL ALSO BE POSSIBLE... RESULTING IN DECREASED VISIBILITIES ACROSS THE AREA. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER WEATHER ADVISORY MEANS THAT PERIODS OF SNOW AND BLOWING SNOW WILL CAUSE TRAVEL DIFFICULTIES. BE PREPARED FOR SLIPPERY ROADS AND LIMITED VISIBILITIES...AND USE CAUTION WHILE DRIVING. THE LATEST ROAD CONDITIONS PROVIDED BY THE WYOMING DEPARTMENT OF TRANSPORTATION ARE AVAILABLE BY CALLING 5-1-1 OR ON THE INTERNET AT WYOROAD.INFO. && $$ WYZ017-220815- /O.CON.KRIW.WW.Y.0043.000000T0000Z-111222T1200Z/ WIND RIVER BASIN- INCLUDING THE CITIES OF...RIVERTON...SHOSHONI 511 PM MST WED DEC 21 2011 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 5 AM MST THURSDAY... A WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 5 AM MST THURSDAY. * SUMMARY AND TIMING...SNOW WILL INTENSIFY ACROSS THE AREA INTO THE AFTERNOON HOURS AND CONTINUE INTO THE EARLY EVENING BEFORE GRADUALLY TAPERING OFF. AREAS CLOSER TO THE FOOTHILLS WILL SEE MORE SIGNIFICANT SNOW CONTINUE INTO THE EARLY MORNING HOURS. SNOWFALL OF AN INCH PER HOUR IS QUITE POSSIBLE THIS AFTERNOON. * SNOW ACCUMULATIONS...THE WIND RIVER BASIN IS EXPECTED TO SEE A WIDESPREAD 3 TO 6 INCHES WITH LOCALLY HIGHER AMOUNTS IN SNOW BANDS AND NEAR THE FOOTHILLS AROUND FORT WASHAKIE. MONETA ALREADY REPORTED 4 INCHES AS OF 10 AM. MOST AREAS REPORTED 2 TO 3 INCHES AS OF 2 PM. * WIND AND VISIBILITY...WIND OF 15 TO 20 MPH WITH GUSTS TO AROUND 30 MPH ARE ANTICIPATED THIS AFTERNOON. THIS GUSTY WIND WILL CREATE SOME BLOWING SNOW... AND CREATE DECREASED VISIBILITIES ALONG HIGHWAY 20 26. PERIODS OF HEAVIER SNOWFALL MAY ALSO CREATE PERIODS OF REDUCED VISIBILITY. * IMPACTS...ROADWAY TRAVEL WILL BECOME HAZARDOUS THROUGH FREMONT COUNTY...INCLUDING HIGHWAY 20 26. ROADWAYS MAY BECOME SLICK AND SNOW PACKED...WITH SOME REDUCTIONS IN VISIBILITIES POSSIBLE TODAY. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER WEATHER ADVISORY MEANS THAT PERIODS OF SNOW AND BLOWING SNOW WILL CAUSE TRAVEL DIFFICULTIES. BE PREPARED FOR SLIPPERY ROADS AND LIMITED VISIBILITIES...AND USE CAUTION WHILE DRIVING. THE LATEST ROAD CONDITIONS PROVIDED BY THE WYOMING DEPARTMENT OF TRANSPORTATION ARE AVAILABLE BY CALLING 5-1-1 OR ON THE INTERNET AT WYOROAD.INFO. && $$ WYZ028>030-220815- /O.CON.KRIW.WW.Y.0043.000000T0000Z-111222T1200Z/ ROCK SPRINGS AND GREEN RIVER-FLAMING GORGE-EAST SWEETWATER COUNTY- INCLUDING THE CITIES OF...ROCK SPRINGS...GREEN RIVER...WAMSUTTER 511 PM MST WED DEC 21 2011 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 5 AM MST THURSDAY... A WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 5 AM MST THURSDAY. * SUMMARY AND TIMING...SNOW WILL DEVELOP RAPIDLY LATER THIS AFTERNOON AND CONTINUE OVERNIGHT ALONG WITH A DEVELOPING NORTHEAST WIND. THE NORTHEAST WIND WILL INCREASE THROUGH THE EVENING AND BECOME QUITE STRONG. * SNOW ACCUMULATIONS...SNOWFALL OF 2 TO 4 INCHES IS EXPECTED WITH LOCALLY HIGHER AMOUNTS NEAR THE MOUNTAINS OF SOUTHERN SWEETWATER COUNTY. * WIND AND VISIBILITY...NORTHEAST WIND OF 25 TO 35 MPH WITH GUSTS AROUND 45 MPH CAN BE EXPECTED WHICH WILL CAUSE CONSIDERABLE BLOWING AND DRIFTING SNOW AND WHITEOUT CONDITIONS AT TIMES LATER THIS EVENING. * IMPACTS...TRAVEL ALONG INTERSTATE 80 AND THE STATE HIGHWAYS ACROSS SWEETWATER COUNTY WILL BECOME TREACHEROUS OVERNIGHT AS THE SNOW AND WIND COMBINE TO PRODUCE SLICK TRAVEL AND SHARPLY REDUCED VISIBILITY ALONG WITH BITTER WIND CHILLS. THE WIND CHILLS WILL DROP TO AS LOW AS MINUS 10 TONIGHT. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER WEATHER ADVISORY MEANS THAT PERIODS OF SNOW AND BLOWING SNOW WILL CAUSE TRAVEL DIFFICULTIES. BE PREPARED FOR SLIPPERY ROADS AND LIMITED VISIBILITIES...AND USE CAUTION WHILE DRIVING. THE LATEST ROAD CONDITIONS PROVIDED BY THE WYOMING DEPARTMENT OF TRANSPORTATION ARE AVAILABLE BY CALLING 5-1-1 OR ON THE INTERNET AT WYOROAD.INFO. && $$
300 WWUS45 KRIW 220222 WSWRIW URGENT - WINTER WEATHER MESSAGE NATIONAL WEATHER SERVICE RIVERTON WY 722 PM MST WED DEC 21 2011 ...WINTER STORM TO CONTINUE TO IMPACT SOUTH AND CENTRAL WYOMING THIS EVENING... .AN UPPER LEVEL LOW PRESSURE SYSTEM WILL CONTINUE TO SLIDE SOUTH ACROSS EASTERN UTAH TONIGHT. THE HEAVIEST SNOW AND STRONGER WINDS WITH THIS SYSTEM WILL SHIFT FURTHER SOUTH INTO SOUTHERN WYOMING THIS EVENING...WHILE HEAVIER SNOW PERSISTS IN UPSLOPE FAVORED AREAS ACROSS CENTRAL WYOMING. SNOW WILL CONTINUE TO GRADUALLY TAPER OFF FROM THE NORTH THROUGH EARLY THURSDAY MORNING...WITH MOST OF THE SNOWFALL SOUTH OF INTERSTATE 80 BY 8 AM. WYZ015-221030- /O.CON.KRIW.WS.W.0014.000000T0000Z-111222T1200Z/ WIND RIVER MOUNTAINS EAST- 722 PM MST WED DEC 21 2011 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 5 AM MST THURSDAY... A WINTER STORM WARNING REMAINS IN EFFECT UNTIL 5 AM MST THURSDAY. * SUMMARY AND TIMING...SNOW...HEAVY AT TIMES ALONG WITH INCREASING NORTHEAST WIND WILL PREVAIL THROUGH THE EVENING. SNOWFALL RATES COULD EXCEED ONE INCH PER HOUR AT TIMES. SNOWFALL IS ANTICIPATED TO TAPER OFF THURSDAY MORNING. * SNOW ACCUMULATIONS...THE EASTERN SLOPES OF THE WIND RIVER MOUNTAINS WILL SEE 9 TO 15 INCHES OF SNOWFALL BY THURSDAY MORNING. AS OF 5 PM...SNOWFALL AMOUNTS RANGED FROM 7 TO 11 INCHES ACROSS THE SOUTHERN WIND RIVER MOUNTAINS AND SOUTH PASS AREA. * WIND AND VISIBILITY...NORTHEAST WIND AT 25 TO 35 MPH WITH GUSTS TO 45 MPH OVER SOUTH PASS AND OTHER OPEN AREAS. VISIBILITY NEAR ZERO AT TIMES IN HEAVY SNOW AND BLOWING SNOW. * IMPACTS...SOUTH PASS WAS CLOSED AS OF 6 PM THURSDAY EVENING. TRAVEL OVER ANY OTHER ROADS OR SNOWMOBILE TRAILS WILL BE EXTREMELY HAZARDOUS WITH HEAVY SNOW AND NEAR WHITEOUT CONDITIONS. THE WIND CHILLS WILL DROP TO AS LOW AS MINUS 20 TONIGHT. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER STORM WARNING FOR HEAVY SNOW MEANS SEVERE WINTER WEATHER CONDITIONS ARE EXPECTED OR OCCURRING. SIGNIFICANT AMOUNTS OF SNOW ARE FORECAST THAT WILL MAKE TRAVEL DANGEROUS. ONLY TRAVEL IN AN EMERGENCY. IF YOU MUST TRAVEL...KEEP AN EXTRA FLASHLIGHT... FOOD...AND WATER IN YOUR VEHICLE IN CASE OF AN EMERGENCY. THE LATEST ROAD CONDITIONS PROVIDED BY THE WYOMING DEPARTMENT OF TRANSPORTATION ARE AVAILABLE BY CALLING 5-1-1 OR ON THE INTERNET AT WYOROAD.INFO. && $$ WYZ018-221030- /O.CON.KRIW.WS.W.0014.000000T0000Z-111222T1200Z/ LANDER FOOTHILLS- INCLUDING THE CITY OF...LANDER 722 PM MST WED DEC 21 2011 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 5 AM MST THURSDAY... A WINTER STORM WARNING REMAINS IN EFFECT UNTIL 5 AM MST THURSDAY. * SUMMARY AND TIMING...SNOW...HEAVY AT TIMES...IS EXPECTED THROUGH THIS EVENING...BEFORE GRADUALLY DECREASING LATE. SNOWFALL RATES COULD APPROACH OR EVEN EXCEED ONE INCH PER HOUR AT TIMES. * SNOW ACCUMULATIONS...8 TO 12 INCHES...WITH LOCALLY HIGHER AMOUNTS CLOSER TO THE BASE OF THE WIND RIVER MOUNTAINS. 6 TO 7 INCHES OF SNOW WAS REPORTED IN LANDER AS OF 6 PM. * WIND AND VISIBILITY...PERIODS OF HEAVY SNOWFALL WILL REDUCE VISIBILITY TO LESS THAN A QUARTER OF A MILE. * IMPACTS...ROADS WILL BE SLICK WITH LIMITED VISIBILITY. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER STORM WARNING FOR HEAVY SNOW MEANS SEVERE WINTER WEATHER CONDITIONS ARE EXPECTED OR OCCURRING. SIGNIFICANT AMOUNTS OF SNOW ARE FORECAST THAT WILL MAKE TRAVEL DANGEROUS. ONLY TRAVEL IN AN EMERGENCY. IF YOU MUST TRAVEL...KEEP AN EXTRA FLASHLIGHT... FOOD...AND WATER IN YOUR VEHICLE IN CASE OF AN EMERGENCY. THE LATEST ROAD CONDITIONS PROVIDED BY THE WYOMING DEPARTMENT OF TRANSPORTATION ARE AVAILABLE BY CALLING 5-1-1 OR ON THE INTERNET AT WYOROAD.INFO. && $$ WYZ020-221030- /O.CON.KRIW.WS.W.0014.000000T0000Z-111222T1200Z/ NATRONA COUNTY LOWER ELEVATIONS- INCLUDING THE CITY OF...CASPER 722 PM MST WED DEC 21 2011 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 5 AM MST THURSDAY... A WINTER STORM WARNING REMAINS IN EFFECT UNTIL 5 AM MST THURSDAY. * SUMMARY AND TIMING...SNOW...HEAVY AT TIMES...IS EXPECTED THROUGH THIS EVENING BEFORE GRADUALLY DECREASING. SNOWFALL RATES COULD APPROACH ONE INCH AN HOUR AT TIMES. * SNOW ACCUMULATIONS...SNOWFALL OF 5 TO 10 INCHES IS EXPECTED OVER THE LOWER ELEVATIONS OF NATRONA COUNTY...WITH HIGHER SNOWFALL ACCUMULATIONS POSSIBLE NEAR THE BASE OF CASPER MOUNTAIN. SNOWFALL AMOUNTS OF 4 TO 6 INCHES WERE ALREADY REPORTED AROUND THE AREA WITH CASPER REPORTING 6 INCHES. * WIND AND VISIBILITY...NORTH WIND OF 15 TO 25 MPH WITH GUSTS TO 35 MPH. THIS GUSTY WIND WILL CREATE SOME BLOWING SNOW AROUND CASPER AND CREATE DECREASED VISIBILITIES ALONG INTERSTATE 25. PERIODS OF HEAVIER SNOWFALL MAY ALSO CREATE PERIODS OF REDUCED VISIBILITY. * IMPACTS...ROADWAY TRAVEL WILL BECOME HAZARDOUS THROUGH NATRONA COUNTY...INCLUDING INTERSTATE 25. ROADWAYS MAY BECOME SLICK AND SNOW PACKED...WITH SOME REDUCTIONS IN VISIBILITIES POSSIBLE. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER STORM WARNING FOR HEAVY SNOW MEANS SEVERE WINTER WEATHER CONDITIONS ARE EXPECTED OR OCCURRING. SIGNIFICANT AMOUNTS OF SNOW ARE FORECAST THAT WILL MAKE TRAVEL DANGEROUS. ONLY TRAVEL IN AN EMERGENCY. IF YOU MUST TRAVEL...KEEP AN EXTRA FLASHLIGHT... FOOD...AND WATER IN YOUR VEHICLE IN CASE OF AN EMERGENCY. THE LATEST ROAD CONDITIONS PROVIDED BY THE WYOMING DEPARTMENT OF TRANSPORTATION ARE AVAILABLE BY CALLING 5-1-1 OR ON THE INTERNET AT WYOROAD.INFO. && $$ WYZ022-221030- /O.CON.KRIW.WS.W.0014.000000T0000Z-111222T1200Z/ CASPER MOUNTAIN- 722 PM MST WED DEC 21 2011 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 5 AM MST THURSDAY... A WINTER STORM WARNING REMAINS IN EFFECT UNTIL 5 AM MST THURSDAY. * SUMMARY AND TIMING...SNOW...HEAVY AT TIMES...IS EXPECTED THROUGH THIS EVENING BEFORE GRADUALLY TAPERING OFF. THE HEAVIEST SNOWFALL IS EXPECTED TO OCCUR THROUGH 9 PM WHEN SNOWFALL RATES OF ONE INCH AN HOUR WILL OCCUR AT TIMES. * SNOW ACCUMULATIONS...CASPER MOUNTAIN WILL SEE SNOWFALL OF 14 TO 24 INCHES BY EARLY THURSDAY MORNING. UP TO 17 INCHES OF SNOW WAS REPORTED ON CASPER MOUNTAIN AS OF 6 PM. * WIND AND VISIBILITY...NORTH WIND OF 15 TO 25 MPH WITH GUSTS TO 35 MPH. VISIBILITY REDUCED TO NEAR ZERO AT TIMES IN HEAVY SNOW AND BLOWING SNOW. * IMPACTS...TRAVEL UP CASPER MOUNTAIN WILL BECOME HAZARDOUS OR IMPASSABLE IN DEEP SNOW...DRIFTED SNOW AND POOR VISIBILITY. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER STORM WARNING FOR HEAVY SNOW MEANS SEVERE WINTER WEATHER CONDITIONS ARE EXPECTED OR OCCURRING. SIGNIFICANT AMOUNTS OF SNOW ARE FORECAST THAT WILL MAKE TRAVEL DANGEROUS. ONLY TRAVEL IN AN EMERGENCY. IF YOU MUST TRAVEL...KEEP AN EXTRA FLASHLIGHT... FOOD...AND WATER IN YOUR VEHICLE IN CASE OF AN EMERGENCY. THE LATEST ROAD CONDITIONS PROVIDED BY THE WYOMING DEPARTMENT OF TRANSPORTATION ARE AVAILABLE BY CALLING 5-1-1 OR ON THE INTERNET AT WYOROAD.INFO. && $$ WYZ019-221030- /O.CON.KRIW.WW.Y.0043.000000T0000Z-111222T1200Z/ GREEN MOUNTAINS AND RATTLESNAKE RANGE- INCLUDING THE CITY OF...JEFFREY CITY 722 PM MST WED DEC 21 2011 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 5 AM MST THURSDAY... A WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 5 AM MST THURSDAY. * SUMMARY AND TIMING...SNOW WILL CONTINUE THROUGH THE EVENING HOURS WITH BURSTS OF HEAVIER SNOW. THE SNOW WILL GRADUALLY TAPER OFF AFTER MIDNIGHT. * SNOW ACCUMULATIONS...WIDESPREAD SNOWFALL OF 4 TO 6 INCHES IS EXPECTED ACROSS THE AREA...WITH LOCALLY HIGHER AMOUNTS POSSIBLE. * WIND AND VISIBILITY...NORTHERLY WIND OF 20 TO 30 MPH IS EXPECTED TO INCREASE ACROSS THE AREA TONIGHT... REDUCING VISIBILITIES TO NEAR WHITEOUT CONDITIONS AT TIMES. * IMPACTS...TRAVEL ALONG HIGHWAY 287 WILL BE HAZARDOUS THROUGH THIS EVENING. EXPECT TO ENCOUNTER SLICK AND SNOW PACKED ROADS...WITH REDUCED VISIBILITIES IN HEAVY SNOW AND BLOWING SNOW. THE WYOMING DEPARTMENT OF TRANSPORTATION ADVISED NO UNNECESSARY TRAVEL ON HIGHWAY 287 BETWEEN SWEETWATER STATION AND THE HIGHWAY 28/287 JUNCTION AS OF 7 PM. WIND CHILLS WILL DIP TO BETWEEN ZERO AND 10 BELOW OVERNIGHT. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER WEATHER ADVISORY MEANS THAT PERIODS OF SNOW AND BLOWING SNOW WILL CAUSE TRAVEL DIFFICULTIES. BE PREPARED FOR SLIPPERY ROADS AND LIMITED VISIBILITIES...AND USE CAUTION WHILE DRIVING. THE LATEST ROAD CONDITIONS PROVIDED BY THE WYOMING DEPARTMENT OF TRANSPORTATION ARE AVAILABLE BY CALLING 5-1-1 OR ON THE INTERNET AT WYOROAD.INFO. && $$ WYZ010-011-220600- /O.CON.KRIW.WW.Y.0043.000000T0000Z-111222T0600Z/ NORTHEAST JOHNSON COUNTY-SOUTHEAST JOHNSON COUNTY- INCLUDING THE CITIES OF...BUFFALO...KAYCEE 722 PM MST WED DEC 21 2011 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 11 PM MST THIS EVENING... A WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 11 PM MST THIS EVENING. * SUMMARY AND TIMING...OCCASIONAL LIGHT TO MODERATE SNOW WILL CONTINUE ACROSS THE THIS EVENING...TAPERING OFF AFTER 9 PM. * SNOW ACCUMULATIONS...WIDESPREAD ACCUMULATIONS OF 2 TO 4 INCHES WILL BE POSSIBLE ACROSS THE AREA...WITH AREAS WEST OF BUFFALO SEEING LOCALLY HIGHER SNOWFALL AMOUNTS. UP TO 2 INCHES HAS ALREADY BEEN REPORTED AROUND BUFFALO. * WIND AND VISIBILITY...NORTH WIND 20 TO 35 MPH WITH SOME HIGHER GUSTS WILL REDUCE VISIBILITIES TO ONE-HALF MILE OR LESS AT TIMES IN BLOWING SNOW ALONG INTERSTATES 90 AND 25 THROUGH JOHNSON COUNTY. * IMPACTS...TRAVEL ALONG INTERSTATES 90 AND 25 WILL BE HAZARDOUS THIS EVENING. ROADS WILL BE SLICK AND SNOW PACKED...WITH BLOWING SNOW REDUCING VISIBILITY. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER WEATHER ADVISORY MEANS THAT PERIODS OF SNOW AND BLOWING SNOW WILL CAUSE TRAVEL DIFFICULTIES. BE PREPARED FOR SLIPPERY ROADS AND LIMITED VISIBILITIES...AND USE CAUTION WHILE DRIVING. THE LATEST ROAD CONDITIONS PROVIDED BY THE WYOMING DEPARTMENT OF TRANSPORTATION ARE AVAILABLE BY CALLING 5-1-1 OR ON THE INTERNET AT WYOROAD.INFO. && $$ WYZ008-009-220600- /O.CON.KRIW.WW.Y.0043.000000T0000Z-111222T0600Z/ BIGHORN MOUNTAINS WEST-BIGHORN MOUNTAINS SOUTHEAST- 722 PM MST WED DEC 21 2011 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 11 PM MST THIS EVENING... A WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 11 PM MST THIS EVENING. * SUMMARY AND TIMING...SNOWFALL...HEAVY AT TIMES...WILL CONTINUE OVER THE BIGHORN MOUNTAINS THROUGH THIS EVENING. * SNOW ACCUMULATIONS...SNOWFALL OF 6 TO 10 INCHES IS EXPECTED OVER THE BIGHORN MOUNTAINS...WITH LOCALLY HIGHER AMOUNTS POSSIBLE SOUTH AND WEST OF BURGESS JUNCTION. 4 TO 8 INCHES HAS ALREADY BEEN REPORTED THIS AFTERNOON. * WIND AND VISIBILITY...NORTHERLY WIND OF 20 TO 25 MPH WITH GUSTS AROUND 35 MPH OVER OPEN AREAS CAUSING BLOWING AND DRIFTING SNOW AND POOR VISIBILITY. * IMPACTS...TRAVEL ACROSS THE MOUNTAIN PASSES WILL REMAIN HAZARDOUS THIS EVENING WITH SNOW-COVERED/SNOW-PACKED ROADS AND LIMITED VISIBILITY IN BLOWING SNOW. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER WEATHER ADVISORY MEANS THAT PERIODS OF SNOW AND BLOWING SNOW WILL CAUSE TRAVEL DIFFICULTIES. BE PREPARED FOR SLIPPERY ROADS AND LIMITED VISIBILITIES...AND USE CAUTION WHILE DRIVING. THE LATEST ROAD CONDITIONS PROVIDED BY THE WYOMING DEPARTMENT OF TRANSPORTATION ARE AVAILABLE BY CALLING 5-1-1 OR ON THE INTERNET AT WYOROAD.INFO. && $$ WYZ017-221030- /O.CON.KRIW.WW.Y.0043.000000T0000Z-111222T1200Z/ WIND RIVER BASIN- INCLUDING THE CITIES OF...RIVERTON...SHOSHONI 722 PM MST WED DEC 21 2011 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 5 AM MST THURSDAY... A WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 5 AM MST THURSDAY. * SUMMARY AND TIMING...OCCASIONAL LIGHT SNOW WILL CONTINUE ACROSS THE NORTHEAST PORTION OF THE BASIN THIS EVENING WITH HEAVIER SNOW EXPECTED ALONG HIGHWAYS 789 BETWEEN RIVERTON AND HUDSON AND ALONG HIGHWAY 135 TOWARD SAND DRAW. * SNOW ACCUMULATIONS...THE NORTHEAST PORTION OF THE WIND RIVER BASIN WILL SEE AN ADDITIONAL INCH OR LESS WITH AN ADDITIONAL 2 TO 4 INCHES EXPECTED SOUTH OF RIVERTON. * WIND AND VISIBILITY...NORTH WIND OF 15 TO 25 MPH CAUSING AREAS OF BLOWING SNOW AND VISIBILITY OF NEAR ONE-QUARTER MILE AT TIMES. * IMPACTS...TRAVEL WILL BE HAZARDOUS THROUGH FREMONT COUNTY...ESPECIALLY ALONG HIGHWAY 789 BETWEEN RIVERTON AND LANDER AND HIGHWAY 135 TOWARD SAND DRAW. OTHER ROADS AND HIGHWAYS WILL REMAIN SLICK AND SNOW-PACKED. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER WEATHER ADVISORY MEANS THAT PERIODS OF SNOW AND BLOWING SNOW WILL CAUSE TRAVEL DIFFICULTIES. BE PREPARED FOR SLIPPERY ROADS AND LIMITED VISIBILITIES...AND USE CAUTION WHILE DRIVING. THE LATEST ROAD CONDITIONS PROVIDED BY THE WYOMING DEPARTMENT OF TRANSPORTATION ARE AVAILABLE BY CALLING 5-1-1 OR ON THE INTERNET AT WYOROAD.INFO. && $$ WYZ028>030-221030- /O.CON.KRIW.WW.Y.0043.000000T0000Z-111222T1200Z/ ROCK SPRINGS AND GREEN RIVER-FLAMING GORGE-EAST SWEETWATER COUNTY- INCLUDING THE CITIES OF...ROCK SPRINGS...GREEN RIVER...WAMSUTTER 722 PM MST WED DEC 21 2011 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 5 AM MST THURSDAY... A WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 5 AM MST THURSDAY. * SUMMARY AND TIMING...SNOW...HEAVY AT TIMES...WILL CONTINUE THROUGH THE EVENING. NORTHEAST WIND WILL CONTINUE TO INTENSIFY...ESPECIALLY EAST OF ROCK SPRINGS TO WAMSUTTER. SNOW WILL GRADUALLY TAPER OFF FROM THE NORTH AFTER MIDNIGHT...WITH ANY WIDESPREAD SNOWFALL SOUTH OF INTERSTATE 80 BY 8 AM. * SNOW ACCUMULATIONS...SNOWFALL OF 2 TO 4 INCHES IS EXPECTED WITH LOCALLY HIGHER AMOUNTS NEAR THE MOUNTAINS OF SOUTHERN SWEETWATER COUNTY. * WIND AND VISIBILITY...NORTHEAST WIND OF 25 TO 35 MPH WITH GUSTS AROUND 45 MPH CAN BE EXPECTED WHICH WILL CAUSE CONSIDERABLE BLOWING AND DRIFTING SNOW AND WHITEOUT CONDITIONS AT TIMES LATER THIS EVENING. * IMPACTS...TRAVEL ALONG INTERSTATE 80 AND THE STATE HIGHWAYS ACROSS SWEETWATER COUNTY WILL BECOME TREACHEROUS OVERNIGHT AS THE SNOW AND WIND COMBINE TO PRODUCE SLICK TRAVEL AND SHARPLY REDUCED VISIBILITY ALONG WITH BITTER WIND CHILLS. THE WIND CHILLS WILL DROP TO AS LOW AS MINUS 10 TONIGHT. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER WEATHER ADVISORY MEANS THAT PERIODS OF SNOW AND BLOWING SNOW WILL CAUSE TRAVEL DIFFICULTIES. BE PREPARED FOR SLIPPERY ROADS AND LIMITED VISIBILITIES...AND USE CAUTION WHILE DRIVING. THE LATEST ROAD CONDITIONS PROVIDED BY THE WYOMING DEPARTMENT OF TRANSPORTATION ARE AVAILABLE BY CALLING 5-1-1 OR ON THE INTERNET AT WYOROAD.INFO. && $$ AEM
955 WWUS45 KRIW 220314 WSWRIW URGENT - WINTER WEATHER MESSAGE NATIONAL WEATHER SERVICE RIVERTON WY 814 PM MST WED DEC 21 2011 ...WINTER STORM TO CONTINUE TO IMPACT SOUTH AND CENTRAL WYOMING THIS EVENING... .AN UPPER LEVEL LOW PRESSURE SYSTEM WILL CONTINUE TO SLIDE SOUTH ACROSS EASTERN UTAH TONIGHT. THE HEAVIEST SNOW AND STRONGER WINDS WITH THIS SYSTEM WILL SHIFT FURTHER SOUTH INTO SOUTHERN WYOMING THIS EVENING...WHILE HEAVIER SNOW PERSISTS IN UPSLOPE FAVORED AREAS ACROSS CENTRAL WYOMING. SNOW WILL CONTINUE TO GRADUALLY TAPER OFF FROM THE NORTH THROUGH EARLY THURSDAY MORNING...WITH MOST OF THE SNOWFALL SOUTH OF INTERSTATE 80 BY 8 AM. WYZ015-221115- /O.CON.KRIW.WS.W.0014.000000T0000Z-111222T1200Z/ WIND RIVER MOUNTAINS EAST- 814 PM MST WED DEC 21 2011 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 5 AM MST THURSDAY... A WINTER STORM WARNING REMAINS IN EFFECT UNTIL 5 AM MST THURSDAY. * SUMMARY AND TIMING...SNOW...HEAVY AT TIMES ALONG WITH INCREASING NORTHEAST WIND WILL PREVAIL THROUGH THE EVENING. SNOWFALL RATES COULD EXCEED ONE INCH PER HOUR AT TIMES. SNOWFALL IS ANTICIPATED TO TAPER OFF THURSDAY MORNING. * SNOW ACCUMULATIONS...THE EASTERN SLOPES OF THE WIND RIVER MOUNTAINS WILL SEE 9 TO 15 INCHES OF SNOWFALL BY THURSDAY MORNING. AS OF 5 PM...SNOWFALL AMOUNTS RANGED FROM 7 TO 11 INCHES ACROSS THE SOUTHERN WIND RIVER MOUNTAINS AND SOUTH PASS AREA. * WIND AND VISIBILITY...NORTHEAST WIND AT 25 TO 35 MPH WITH GUSTS TO 45 MPH OVER SOUTH PASS AND OTHER OPEN AREAS. VISIBILITY NEAR ZERO AT TIMES IN HEAVY SNOW AND BLOWING SNOW. * IMPACTS...SOUTH PASS WAS CLOSED AS OF 6 PM THURSDAY EVENING. TRAVEL OVER ANY OTHER ROADS OR SNOWMOBILE TRAILS WILL BE EXTREMELY HAZARDOUS WITH HEAVY SNOW AND NEAR WHITEOUT CONDITIONS. THE WIND CHILLS WILL DROP TO AS LOW AS MINUS 20 TONIGHT. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER STORM WARNING FOR HEAVY SNOW MEANS SEVERE WINTER WEATHER CONDITIONS ARE EXPECTED OR OCCURRING. SIGNIFICANT AMOUNTS OF SNOW ARE FORECAST THAT WILL MAKE TRAVEL DANGEROUS. ONLY TRAVEL IN AN EMERGENCY. IF YOU MUST TRAVEL...KEEP AN EXTRA FLASHLIGHT... FOOD...AND WATER IN YOUR VEHICLE IN CASE OF AN EMERGENCY. THE LATEST ROAD CONDITIONS PROVIDED BY THE WYOMING DEPARTMENT OF TRANSPORTATION ARE AVAILABLE BY CALLING 5-1-1 OR ON THE INTERNET AT WYOROAD.INFO. && $$ WYZ018-221115- /O.CON.KRIW.WS.W.0014.000000T0000Z-111222T1200Z/ LANDER FOOTHILLS- INCLUDING THE CITY OF...LANDER 814 PM MST WED DEC 21 2011 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 5 AM MST THURSDAY... A WINTER STORM WARNING REMAINS IN EFFECT UNTIL 5 AM MST THURSDAY. * SUMMARY AND TIMING...SNOW...HEAVY AT TIMES...IS EXPECTED THROUGH THIS EVENING...BEFORE GRADUALLY DECREASING LATE. SNOWFALL RATES COULD APPROACH OR EVEN EXCEED ONE INCH PER HOUR AT TIMES. * SNOW ACCUMULATIONS...8 TO 12 INCHES...WITH LOCALLY HIGHER AMOUNTS CLOSER TO THE BASE OF THE WIND RIVER MOUNTAINS. 6 TO 7 INCHES OF SNOW WAS REPORTED IN LANDER AS OF 6 PM. * WIND AND VISIBILITY...PERIODS OF HEAVY SNOWFALL WILL REDUCE VISIBILITY TO LESS THAN A QUARTER OF A MILE. * IMPACTS...ROADS WILL BE SLICK AND SNOWPACKED WITH LIMITED VISIBILITY. HIGHWAY 287 BETWEEN SWEETWATER STATION AND THE JUNCTION OF HIGHWAY 28 AND 287 WAS CLOSED AS OF 8 PM. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER STORM WARNING FOR HEAVY SNOW MEANS SEVERE WINTER WEATHER CONDITIONS ARE EXPECTED OR OCCURRING. SIGNIFICANT AMOUNTS OF SNOW ARE FORECAST THAT WILL MAKE TRAVEL DANGEROUS. ONLY TRAVEL IN AN EMERGENCY. IF YOU MUST TRAVEL...KEEP AN EXTRA FLASHLIGHT... FOOD...AND WATER IN YOUR VEHICLE IN CASE OF AN EMERGENCY. THE LATEST ROAD CONDITIONS PROVIDED BY THE WYOMING DEPARTMENT OF TRANSPORTATION ARE AVAILABLE BY CALLING 5-1-1 OR ON THE INTERNET AT WYOROAD.INFO. && $$ WYZ020-221115- /O.CON.KRIW.WS.W.0014.000000T0000Z-111222T1200Z/ NATRONA COUNTY LOWER ELEVATIONS- INCLUDING THE CITY OF...CASPER 814 PM MST WED DEC 21 2011 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 5 AM MST THURSDAY... A WINTER STORM WARNING REMAINS IN EFFECT UNTIL 5 AM MST THURSDAY. * SUMMARY AND TIMING...SNOW...HEAVY AT TIMES...IS EXPECTED THROUGH THIS EVENING BEFORE GRADUALLY DECREASING. SNOWFALL RATES COULD APPROACH ONE INCH AN HOUR AT TIMES. * SNOW ACCUMULATIONS...SNOWFALL OF 5 TO 10 INCHES IS EXPECTED OVER THE LOWER ELEVATIONS OF NATRONA COUNTY...WITH HIGHER SNOWFALL ACCUMULATIONS POSSIBLE NEAR THE BASE OF CASPER MOUNTAIN. SNOWFALL AMOUNTS OF 4 TO 6 INCHES WERE ALREADY REPORTED AROUND THE AREA WITH CASPER REPORTING 6 INCHES. * WIND AND VISIBILITY...NORTH WIND OF 15 TO 25 MPH WITH GUSTS TO 35 MPH. THIS GUSTY WIND WILL CREATE SOME BLOWING SNOW AROUND CASPER AND CREATE DECREASED VISIBILITIES ALONG INTERSTATE 25. PERIODS OF HEAVIER SNOWFALL MAY ALSO CREATE PERIODS OF REDUCED VISIBILITY. * IMPACTS...ROADWAY TRAVEL WILL BECOME HAZARDOUS THROUGH NATRONA COUNTY...INCLUDING INTERSTATE 25. ROADWAYS MAY BECOME SLICK AND SNOW PACKED...WITH SOME REDUCTIONS IN VISIBILITIES POSSIBLE. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER STORM WARNING FOR HEAVY SNOW MEANS SEVERE WINTER WEATHER CONDITIONS ARE EXPECTED OR OCCURRING. SIGNIFICANT AMOUNTS OF SNOW ARE FORECAST THAT WILL MAKE TRAVEL DANGEROUS. ONLY TRAVEL IN AN EMERGENCY. IF YOU MUST TRAVEL...KEEP AN EXTRA FLASHLIGHT... FOOD...AND WATER IN YOUR VEHICLE IN CASE OF AN EMERGENCY. THE LATEST ROAD CONDITIONS PROVIDED BY THE WYOMING DEPARTMENT OF TRANSPORTATION ARE AVAILABLE BY CALLING 5-1-1 OR ON THE INTERNET AT WYOROAD.INFO. && $$ WYZ022-221115- /O.CON.KRIW.WS.W.0014.000000T0000Z-111222T1200Z/ CASPER MOUNTAIN- 814 PM MST WED DEC 21 2011 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 5 AM MST THURSDAY... A WINTER STORM WARNING REMAINS IN EFFECT UNTIL 5 AM MST THURSDAY. * SUMMARY AND TIMING...SNOW...HEAVY AT TIMES...IS EXPECTED THROUGH THIS EVENING BEFORE GRADUALLY TAPERING OFF. THE HEAVIEST SNOWFALL IS EXPECTED TO OCCUR THROUGH 9 PM WHEN SNOWFALL RATES OF ONE INCH AN HOUR WILL OCCUR AT TIMES. * SNOW ACCUMULATIONS...CASPER MOUNTAIN WILL SEE SNOWFALL OF 14 TO 24 INCHES BY EARLY THURSDAY MORNING. UP TO 17 INCHES OF SNOW WAS REPORTED ON CASPER MOUNTAIN AS OF 6 PM. * WIND AND VISIBILITY...NORTH WIND OF 15 TO 25 MPH WITH GUSTS TO 35 MPH. VISIBILITY REDUCED TO NEAR ZERO AT TIMES IN HEAVY SNOW AND BLOWING SNOW. * IMPACTS...TRAVEL UP CASPER MOUNTAIN WILL BECOME HAZARDOUS OR IMPASSABLE IN DEEP SNOW...DRIFTED SNOW AND POOR VISIBILITY. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER STORM WARNING FOR HEAVY SNOW MEANS SEVERE WINTER WEATHER CONDITIONS ARE EXPECTED OR OCCURRING. SIGNIFICANT AMOUNTS OF SNOW ARE FORECAST THAT WILL MAKE TRAVEL DANGEROUS. ONLY TRAVEL IN AN EMERGENCY. IF YOU MUST TRAVEL...KEEP AN EXTRA FLASHLIGHT... FOOD...AND WATER IN YOUR VEHICLE IN CASE OF AN EMERGENCY. THE LATEST ROAD CONDITIONS PROVIDED BY THE WYOMING DEPARTMENT OF TRANSPORTATION ARE AVAILABLE BY CALLING 5-1-1 OR ON THE INTERNET AT WYOROAD.INFO. && $$ WYZ019-221115- /O.CON.KRIW.WW.Y.0043.000000T0000Z-111222T1200Z/ GREEN MOUNTAINS AND RATTLESNAKE RANGE- INCLUDING THE CITY OF...JEFFREY CITY 814 PM MST WED DEC 21 2011 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 5 AM MST THURSDAY... A WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 5 AM MST THURSDAY. * SUMMARY AND TIMING...SNOW WILL CONTINUE THROUGH THE EVENING HOURS WITH BURSTS OF HEAVIER SNOW. THE SNOW WILL GRADUALLY TAPER OFF AFTER MIDNIGHT. * SNOW ACCUMULATIONS...WIDESPREAD SNOWFALL OF 4 TO 6 INCHES IS EXPECTED ACROSS THE AREA...WITH LOCALLY HIGHER AMOUNTS POSSIBLE. * WIND AND VISIBILITY...NORTHERLY WIND OF 20 TO 30 MPH IS EXPECTED TO INCREASE ACROSS THE AREA TONIGHT... REDUCING VISIBILITIES TO NEAR WHITEOUT CONDITIONS AT TIMES. * IMPACTS...TRAVEL ALONG HIGHWAY 287 WILL BE HAZARDOUS THROUGH THIS EVENING. EXPECT TO ENCOUNTER SLICK AND SNOW PACKED ROADS... WITH REDUCED VISIBILITIES IN HEAVY SNOW AND BLOWING SNOW. HIGHWAY 287 BETWEEN SWEETWATER STATION AND THE HIGHWAY 28/287 JUNCTION WAS CLOSED AS OF 8 PM. WIND CHILLS WILL DIP TO BETWEEN ZERO AND 10 BELOW OVERNIGHT. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER WEATHER ADVISORY MEANS THAT PERIODS OF SNOW AND BLOWING SNOW WILL CAUSE TRAVEL DIFFICULTIES. BE PREPARED FOR SLIPPERY ROADS AND LIMITED VISIBILITIES...AND USE CAUTION WHILE DRIVING. THE LATEST ROAD CONDITIONS PROVIDED BY THE WYOMING DEPARTMENT OF TRANSPORTATION ARE AVAILABLE BY CALLING 5-1-1 OR ON THE INTERNET AT WYOROAD.INFO. && $$ WYZ010-011-220600- /O.CON.KRIW.WW.Y.0043.000000T0000Z-111222T0600Z/ NORTHEAST JOHNSON COUNTY-SOUTHEAST JOHNSON COUNTY- INCLUDING THE CITIES OF...BUFFALO...KAYCEE 814 PM MST WED DEC 21 2011 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 11 PM MST THIS EVENING... A WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 11 PM MST THIS EVENING. * SUMMARY AND TIMING...OCCASIONAL LIGHT TO MODERATE SNOW WILL CONTINUE ACROSS THE THIS EVENING...TAPERING OFF AFTER 9 PM. * SNOW ACCUMULATIONS...WIDESPREAD ACCUMULATIONS OF 2 TO 4 INCHES WILL BE POSSIBLE ACROSS THE AREA...WITH AREAS WEST OF BUFFALO SEEING LOCALLY HIGHER SNOWFALL AMOUNTS. UP TO 2 INCHES HAS ALREADY BEEN REPORTED AROUND BUFFALO. * WIND AND VISIBILITY...NORTH WIND 20 TO 35 MPH WITH SOME HIGHER GUSTS WILL REDUCE VISIBILITIES TO ONE-HALF MILE OR LESS AT TIMES IN BLOWING SNOW ALONG INTERSTATES 90 AND 25 THROUGH JOHNSON COUNTY. * IMPACTS...TRAVEL ALONG INTERSTATES 90 AND 25 WILL BE HAZARDOUS THIS EVENING. ROADS WILL BE SLICK AND SNOW PACKED...WITH BLOWING SNOW REDUCING VISIBILITY. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER WEATHER ADVISORY MEANS THAT PERIODS OF SNOW AND BLOWING SNOW WILL CAUSE TRAVEL DIFFICULTIES. BE PREPARED FOR SLIPPERY ROADS AND LIMITED VISIBILITIES...AND USE CAUTION WHILE DRIVING. THE LATEST ROAD CONDITIONS PROVIDED BY THE WYOMING DEPARTMENT OF TRANSPORTATION ARE AVAILABLE BY CALLING 5-1-1 OR ON THE INTERNET AT WYOROAD.INFO. && $$ WYZ008-009-220600- /O.CON.KRIW.WW.Y.0043.000000T0000Z-111222T0600Z/ BIGHORN MOUNTAINS WEST-BIGHORN MOUNTAINS SOUTHEAST- 814 PM MST WED DEC 21 2011 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 11 PM MST THIS EVENING... A WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 11 PM MST THIS EVENING. * SUMMARY AND TIMING...SNOWFALL...HEAVY AT TIMES...WILL CONTINUE OVER THE BIGHORN MOUNTAINS THROUGH THIS EVENING. * SNOW ACCUMULATIONS...SNOWFALL OF 6 TO 10 INCHES IS EXPECTED OVER THE BIGHORN MOUNTAINS...WITH LOCALLY HIGHER AMOUNTS POSSIBLE SOUTH AND WEST OF BURGESS JUNCTION. 4 TO 8 INCHES HAS ALREADY BEEN REPORTED THIS AFTERNOON. * WIND AND VISIBILITY...NORTHERLY WIND OF 20 TO 25 MPH WITH GUSTS AROUND 35 MPH OVER OPEN AREAS CAUSING BLOWING AND DRIFTING SNOW AND POOR VISIBILITY. * IMPACTS...TRAVEL ACROSS THE MOUNTAIN PASSES WILL REMAIN HAZARDOUS THIS EVENING WITH SNOW-COVERED/SNOW-PACKED ROADS AND LIMITED VISIBILITY IN BLOWING SNOW. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER WEATHER ADVISORY MEANS THAT PERIODS OF SNOW AND BLOWING SNOW WILL CAUSE TRAVEL DIFFICULTIES. BE PREPARED FOR SLIPPERY ROADS AND LIMITED VISIBILITIES...AND USE CAUTION WHILE DRIVING. THE LATEST ROAD CONDITIONS PROVIDED BY THE WYOMING DEPARTMENT OF TRANSPORTATION ARE AVAILABLE BY CALLING 5-1-1 OR ON THE INTERNET AT WYOROAD.INFO. && $$ WYZ017-221115- /O.CON.KRIW.WW.Y.0043.000000T0000Z-111222T1200Z/ WIND RIVER BASIN- INCLUDING THE CITIES OF...RIVERTON...SHOSHONI 814 PM MST WED DEC 21 2011 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 5 AM MST THURSDAY... A WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 5 AM MST THURSDAY. * SUMMARY AND TIMING...OCCASIONAL LIGHT SNOW WILL CONTINUE ACROSS THE NORTHEAST PORTION OF THE BASIN THIS EVENING WITH HEAVIER SNOW EXPECTED ALONG HIGHWAYS 789 BETWEEN RIVERTON AND HUDSON AND ALONG HIGHWAY 135 TOWARD SAND DRAW. * SNOW ACCUMULATIONS...THE NORTHEAST PORTION OF THE WIND RIVER BASIN WILL SEE AN ADDITIONAL INCH OR LESS WITH AN ADDITIONAL 2 TO 4 INCHES EXPECTED SOUTH OF RIVERTON. * WIND AND VISIBILITY...NORTH WIND OF 15 TO 25 MPH CAUSING AREAS OF BLOWING SNOW AND VISIBILITY OF NEAR ONE-QUARTER MILE AT TIMES. * IMPACTS...TRAVEL WILL BE HAZARDOUS THROUGH FREMONT COUNTY... ESPECIALLY ALONG HIGHWAY 789 BETWEEN RIVERTON AND LANDER AND HIGHWAY 135 TOWARD SAND DRAW. OTHER ROADS AND HIGHWAYS WILL REMAIN SLICK AND SNOW-PACKED. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER WEATHER ADVISORY MEANS THAT PERIODS OF SNOW AND BLOWING SNOW WILL CAUSE TRAVEL DIFFICULTIES. BE PREPARED FOR SLIPPERY ROADS AND LIMITED VISIBILITIES...AND USE CAUTION WHILE DRIVING. THE LATEST ROAD CONDITIONS PROVIDED BY THE WYOMING DEPARTMENT OF TRANSPORTATION ARE AVAILABLE BY CALLING 5-1-1 OR ON THE INTERNET AT WYOROAD.INFO. && $$ WYZ028>030-221115- /O.CON.KRIW.WW.Y.0043.000000T0000Z-111222T1200Z/ ROCK SPRINGS AND GREEN RIVER-FLAMING GORGE-EAST SWEETWATER COUNTY- INCLUDING THE CITIES OF...ROCK SPRINGS...GREEN RIVER...WAMSUTTER 814 PM MST WED DEC 21 2011 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 5 AM MST THURSDAY... A WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 5 AM MST THURSDAY. * SUMMARY AND TIMING...SNOW...HEAVY AT TIMES...WILL CONTINUE THROUGH THE EVENING. NORTHEAST WIND WILL CONTINUE TO INTENSIFY...ESPECIALLY EAST OF ROCK SPRINGS TO WAMSUTTER. SNOW WILL GRADUALLY TAPER OFF FROM THE NORTH AFTER MIDNIGHT...WITH ANY WIDESPREAD SNOWFALL SOUTH OF INTERSTATE 80 BY 8 AM. * SNOW ACCUMULATIONS...SNOWFALL OF 2 TO 4 INCHES IS EXPECTED WITH LOCALLY HIGHER AMOUNTS NEAR THE MOUNTAINS OF SOUTHERN SWEETWATER COUNTY. * WIND AND VISIBILITY...NORTHEAST WIND OF 25 TO 35 MPH WITH GUSTS AROUND 45 MPH CAN BE EXPECTED WHICH WILL CAUSE CONSIDERABLE BLOWING AND DRIFTING SNOW AND WHITEOUT CONDITIONS AT TIMES LATER THIS EVENING. * IMPACTS...TRAVEL ALONG INTERSTATE 80 AND THE STATE HIGHWAYS ACROSS SWEETWATER COUNTY WILL BECOME TREACHEROUS OVERNIGHT AS THE SNOW AND WIND COMBINE TO PRODUCE SLICK TRAVEL AND SHARPLY REDUCED VISIBILITY ALONG WITH BITTER WIND CHILLS. AS OF 8 PM...THE CHAIN LAW WAS IN EFFECT ALONG INTERSTATE 80 BETWEEN EXITS 83 AND 142. THE WIND CHILLS WILL DROP TO AS LOW AS MINUS 10 TONIGHT. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER WEATHER ADVISORY MEANS THAT PERIODS OF SNOW AND BLOWING SNOW WILL CAUSE TRAVEL DIFFICULTIES. BE PREPARED FOR SLIPPERY ROADS AND LIMITED VISIBILITIES...AND USE CAUTION WHILE DRIVING. THE LATEST ROAD CONDITIONS PROVIDED BY THE WYOMING DEPARTMENT OF TRANSPORTATION ARE AVAILABLE BY CALLING 5-1-1 OR ON THE INTERNET AT WYOROAD.INFO. && $$
060 WWUS45 KRIW 220621 WSWRIW URGENT - WINTER WEATHER MESSAGE NATIONAL WEATHER SERVICE RIVERTON WY 1121 PM MST WED DEC 21 2011 ...WINTER STORM TO CONTINUE TO IMPACT SOUTH AND CENTRAL WYOMING THIS EVENING... .AN UPPER LEVEL LOW PRESSURE SYSTEM WILL CONTINUE TO SLIDE SOUTH ACROSS EASTERN UTAH TONIGHT. SNOWFALL HAD ENDED ACROSS MOST OF NORTHERN WYOMING LATE THIS EVENING WITH MAINLY LIGHT SNOW ACROSS CENTRAL AND SOUTHERN WYOMING...WITH LOCALLY HEAVIER SNOW IN UPSLOPE FAVORED AREAS ON CASPER MOUNTAIN...LANDER FOOTHILLS AND SOUTH PASS AREA. GUSTY WINDS CONTINUED TO CAUSE AREAS OF BLOWING AND DRIFTING SNOW AND AREAS OF REDUCED VISIBILITY...ESPECIALLY ALONG INTERSTATE 80. WYZ020-220730- /O.CAN.KRIW.WS.W.0014.000000T0000Z-111222T1200Z/ NATRONA COUNTY LOWER ELEVATIONS- INCLUDING THE CITY OF...CASPER 1121 PM MST WED DEC 21 2011 ...WINTER STORM WARNING IS CANCELLED... THE NATIONAL WEATHER SERVICE IN RIVERTON HAS CANCELLED THE WINTER STORM WARNING. ONLY OCCASIONAL LIGHT SNOW OR FLURRIES ARE EXPECTED TO LINGER OVERNIGHT WITH ADDITIONAL SNOWFALL OF ONE INCH OR LESS. AREA ROADS WILL REMAIN SLICK AND SNOW-PACKED OVERNIGHT. CHECK THE LATEST ROAD CONDITIONS BY DIALING 5 1 1 IN WYOMING BEFORE TRAVELING. $$ WYZ017-220730- /O.CAN.KRIW.WW.Y.0043.000000T0000Z-111222T1200Z/ WIND RIVER BASIN- INCLUDING THE CITIES OF...RIVERTON...SHOSHONI 1121 PM MST WED DEC 21 2011 ...WINTER WEATHER ADVISORY IS CANCELLED... THE NATIONAL WEATHER SERVICE IN RIVERTON HAS CANCELLED THE WINTER WEATHER ADVISORY. ONLY ISOLATED POCKETS OF LIGHT SNOW OR FLURRIES ARE EXPECTED TO LINGER OVERNIGHT WITH LITTLE OR NO ADDITIONAL SNOWFALL. AREA ROADS WILL REMAIN SLICK AND SNOW-PACKED OVERNIGHT. CHECK THE LATEST ROAD CONDITIONS BY DIALING 5 1 1 IN WYOMING BEFORE TRAVELING. $$ WYZ008>011-220730- /O.EXP.KRIW.WW.Y.0043.000000T0000Z-111222T0600Z/ BIGHORN MOUNTAINS WEST-BIGHORN MOUNTAINS SOUTHEAST- NORTHEAST JOHNSON COUNTY-SOUTHEAST JOHNSON COUNTY- INCLUDING THE CITIES OF...BUFFALO...KAYCEE 1121 PM MST WED DEC 21 2011 ...WINTER WEATHER ADVISORY HAS EXPIRED... THE WINTER WEATHER ADVISORY IS NO LONGER IN EFFECT. ONLY OCCASIONAL LIGHT SNOW OR FLURRIES ARE EXPECTED TO LINGER OVERNIGHT WITH ADDITIONAL SNOWFALL OF ONE INCH OR LESS. AREA ROADS WILL REMAIN SLICK AND SNOW-PACKED OVERNIGHT. CHECK THE LATEST ROAD CONDITIONS BY DIALING 5 1 1 IN WYOMING BEFORE TRAVELING. $$ WYZ015-221200- /O.CON.KRIW.WS.W.0014.000000T0000Z-111222T1200Z/ WIND RIVER MOUNTAINS EAST- 1121 PM MST WED DEC 21 2011 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 5 AM MST THURSDAY... A WINTER STORM WARNING REMAINS IN EFFECT UNTIL 5 AM MST THURSDAY. * SUMMARY AND TIMING...SNOW...HEAVY AT TIMES ALONG WITH INCREASING NORTHEAST WIND WILL PREVAIL THROUGH THE EVENING. SNOWFALL RATES COULD EXCEED ONE INCH PER HOUR AT TIMES. SNOWFALL IS ANTICIPATED TO TAPER OFF THURSDAY MORNING. * SNOW ACCUMULATIONS...THE EASTERN SLOPES OF THE WIND RIVER MOUNTAINS WILL SEE 9 TO 15 INCHES OF SNOWFALL BY THURSDAY MORNING. AS OF 5 PM...SNOWFALL AMOUNTS RANGED FROM 7 TO 11 INCHES ACROSS THE SOUTHERN WIND RIVER MOUNTAINS AND SOUTH PASS AREA. * WIND AND VISIBILITY...NORTHEAST WIND AT 25 TO 35 MPH WITH GUSTS TO 45 MPH OVER SOUTH PASS AND OTHER OPEN AREAS. VISIBILITY NEAR ZERO AT TIMES IN HEAVY SNOW AND BLOWING SNOW. * IMPACTS...SOUTH PASS WAS CLOSED AS OF 6 PM THURSDAY EVENING. TRAVEL OVER ANY OTHER ROADS OR SNOWMOBILE TRAILS WILL BE EXTREMELY HAZARDOUS WITH HEAVY SNOW AND NEAR WHITEOUT CONDITIONS. THE WIND CHILLS WILL DROP TO AS LOW AS MINUS 20 TONIGHT. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER STORM WARNING FOR HEAVY SNOW MEANS SEVERE WINTER WEATHER CONDITIONS ARE EXPECTED OR OCCURRING. SIGNIFICANT AMOUNTS OF SNOW ARE FORECAST THAT WILL MAKE TRAVEL DANGEROUS. ONLY TRAVEL IN AN EMERGENCY. IF YOU MUST TRAVEL...KEEP AN EXTRA FLASHLIGHT... FOOD...AND WATER IN YOUR VEHICLE IN CASE OF AN EMERGENCY. THE LATEST ROAD CONDITIONS PROVIDED BY THE WYOMING DEPARTMENT OF TRANSPORTATION ARE AVAILABLE BY CALLING 5-1-1 OR ON THE INTERNET AT WYOROAD.INFO. && $$ WYZ018-221200- /O.CON.KRIW.WS.W.0014.000000T0000Z-111222T1200Z/ LANDER FOOTHILLS- INCLUDING THE CITY OF...LANDER 1121 PM MST WED DEC 21 2011 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 5 AM MST THURSDAY... A WINTER STORM WARNING REMAINS IN EFFECT UNTIL 5 AM MST THURSDAY. * SUMMARY AND TIMING...SNOW...HEAVY AT TIMES...IS EXPECTED THROUGH THIS EVENING...BEFORE GRADUALLY DECREASING LATE. * SNOW ACCUMULATIONS...AN ADDITIONAL 1 TO 2 INCHES OF SNOWFALL IS EXPECTED OVERNIGHT WITH LOCALLY HIGHER AMOUNTS CLOSER TO THE BASE OF THE WIND RIVER MOUNTAINS. 8 INCHES OF SNOW WAS REPORTED IN LANDER AS OF 11 PM. * WIND AND VISIBILITY...LOCALLY HEAVIER SNOW WILL REDUCE VISIBILITY ON ONE-HALF MILE AT TIMES. * IMPACTS...ROADS WILL BE SLICK AND SNOWPACKED WITH LIMITED VISIBILITY. HIGHWAY 287 BETWEEN SWEETWATER STATION AND THE JUNCTION OF HIGHWAY 28 AND 287 WAS CLOSED AS OF 11 PM. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER STORM WARNING FOR HEAVY SNOW MEANS SEVERE WINTER WEATHER CONDITIONS ARE EXPECTED OR OCCURRING. SIGNIFICANT AMOUNTS OF SNOW ARE FORECAST THAT WILL MAKE TRAVEL DANGEROUS. ONLY TRAVEL IN AN EMERGENCY. IF YOU MUST TRAVEL...KEEP AN EXTRA FLASHLIGHT... FOOD...AND WATER IN YOUR VEHICLE IN CASE OF AN EMERGENCY. THE LATEST ROAD CONDITIONS PROVIDED BY THE WYOMING DEPARTMENT OF TRANSPORTATION ARE AVAILABLE BY CALLING 5-1-1 OR ON THE INTERNET AT WYOROAD.INFO. && $$ WYZ022-221200- /O.CON.KRIW.WS.W.0014.000000T0000Z-111222T1200Z/ CASPER MOUNTAIN- 1121 PM MST WED DEC 21 2011 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 5 AM MST THURSDAY... A WINTER STORM WARNING REMAINS IN EFFECT UNTIL 5 AM MST THURSDAY. * SUMMARY AND TIMING...SNOW...HEAVY AT TIMES...IS EXPECTED THROUGH THIS EVENING BEFORE GRADUALLY TAPERING OFF. * SNOW ACCUMULATIONS...CASPER MOUNTAIN WILL SEE SNOWFALL OF 15 TO 30 INCHES BY EARLY THURSDAY MORNING. UP TO 24 INCHES OF SNOW WAS REPORTED ON CASPER MOUNTAIN AS OF 10 PM. * WIND AND VISIBILITY...NORTH WIND OF 15 TO 20 MPH. VISIBILITY REDUCED TO NEAR ZERO AT TIMES IN SNOW AND BLOWING SNOW. * IMPACTS...TRAVEL UP CASPER MOUNTAIN WILL BECOME HAZARDOUS OR IMPASSABLE IN DEEP SNOW...DRIFTED SNOW AND POOR VISIBILITY. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER STORM WARNING FOR HEAVY SNOW MEANS SEVERE WINTER WEATHER CONDITIONS ARE EXPECTED OR OCCURRING. SIGNIFICANT AMOUNTS OF SNOW ARE FORECAST THAT WILL MAKE TRAVEL DANGEROUS. ONLY TRAVEL IN AN EMERGENCY. IF YOU MUST TRAVEL...KEEP AN EXTRA FLASHLIGHT... FOOD...AND WATER IN YOUR VEHICLE IN CASE OF AN EMERGENCY. THE LATEST ROAD CONDITIONS PROVIDED BY THE WYOMING DEPARTMENT OF TRANSPORTATION ARE AVAILABLE BY CALLING 5-1-1 OR ON THE INTERNET AT WYOROAD.INFO. && $$ WYZ019-221200- /O.CON.KRIW.WW.Y.0043.000000T0000Z-111222T1200Z/ GREEN MOUNTAINS AND RATTLESNAKE RANGE- INCLUDING THE CITY OF...JEFFREY CITY 1121 PM MST WED DEC 21 2011 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 5 AM MST THURSDAY... A WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 5 AM MST THURSDAY. * SUMMARY AND TIMING...SNOW WILL CONTINUE THROUGH THE EVENING HOURS WITH BURSTS OF HEAVIER SNOW. THE SNOW WILL GRADUALLY TAPER OFF AFTER MIDNIGHT. * SNOW ACCUMULATIONS...WIDESPREAD SNOWFALL OF 4 TO 6 INCHES IS EXPECTED ACROSS THE AREA...WITH LOCALLY HIGHER AMOUNTS POSSIBLE. 9 INCHES OF SNOW WAS REPORTED OVER BEAVER RIM AT 11 PM. * WIND AND VISIBILITY...NORTHERLY WIND OF 20 TO 30 MPH IS EXPECTED TO INCREASE ACROSS THE AREA TONIGHT... REDUCING VISIBILITIES TO NEAR WHITEOUT CONDITIONS AT TIMES. * IMPACTS...TRAVEL ALONG HIGHWAY 287 WILL BE HAZARDOUS THROUGH THIS EVENING. EXPECT TO ENCOUNTER SLICK AND SNOW PACKED ROADS... WITH REDUCED VISIBILITIES IN HEAVY SNOW AND BLOWING SNOW. HIGHWAY 287 BETWEEN SWEETWATER STATION AND THE HIGHWAY 28/287 JUNCTION WAS CLOSED AS OF 11 PM. WIND CHILLS WILL DIP TO BETWEEN ZERO AND 10 BELOW OVERNIGHT. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER WEATHER ADVISORY MEANS THAT PERIODS OF SNOW AND BLOWING SNOW WILL CAUSE TRAVEL DIFFICULTIES. BE PREPARED FOR SLIPPERY ROADS AND LIMITED VISIBILITIES...AND USE CAUTION WHILE DRIVING. THE LATEST ROAD CONDITIONS PROVIDED BY THE WYOMING DEPARTMENT OF TRANSPORTATION ARE AVAILABLE BY CALLING 5-1-1 OR ON THE INTERNET AT WYOROAD.INFO. && $$ WYZ028>030-221200- /O.CON.KRIW.WW.Y.0043.000000T0000Z-111222T1200Z/ ROCK SPRINGS AND GREEN RIVER-FLAMING GORGE-EAST SWEETWATER COUNTY- INCLUDING THE CITIES OF...ROCK SPRINGS...GREEN RIVER...WAMSUTTER 1121 PM MST WED DEC 21 2011 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 5 AM MST THURSDAY... A WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 5 AM MST THURSDAY. * SUMMARY AND TIMING...SNOW...HEAVY AT TIMES...WILL CONTINUE THROUGH THE EVENING. NORTHEAST WIND WILL CONTINUE TO INTENSIFY...ESPECIALLY EAST OF ROCK SPRINGS TO WAMSUTTER. SNOW WILL GRADUALLY TAPER OFF FROM THE NORTH AFTER MIDNIGHT...WITH ANY WIDESPREAD SNOWFALL SOUTH OF INTERSTATE 80 BY 8 AM. * SNOW ACCUMULATIONS...SNOWFALL OF 2 TO 4 INCHES IS EXPECTED WITH LOCALLY HIGHER AMOUNTS NEAR THE MOUNTAINS OF SOUTHERN SWEETWATER COUNTY. * WIND AND VISIBILITY...NORTHEAST WIND OF 25 TO 35 MPH WITH GUSTS AROUND 45 MPH CAN BE EXPECTED WHICH WILL CAUSE CONSIDERABLE BLOWING AND DRIFTING SNOW AND WHITEOUT CONDITIONS AT TIMES LATER THIS EVENING. * IMPACTS...TRAVEL ALONG INTERSTATE 80 AND THE STATE HIGHWAYS ACROSS SWEETWATER COUNTY WILL BECOME TREACHEROUS OVERNIGHT AS THE SNOW AND WIND COMBINE TO PRODUCE SLICK TRAVEL AND SHARPLY REDUCED VISIBILITY ALONG WITH BITTER WIND CHILLS. AS OF 11 PM...THE CHAIN LAW WAS IN EFFECT ALONG INTERSTATE 80 BETWEEN EXITS 83 AND 142. THE WIND CHILLS WILL DROP TO AS LOW AS MINUS 10 TONIGHT. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER WEATHER ADVISORY MEANS THAT PERIODS OF SNOW AND BLOWING SNOW WILL CAUSE TRAVEL DIFFICULTIES. BE PREPARED FOR SLIPPERY ROADS AND LIMITED VISIBILITIES...AND USE CAUTION WHILE DRIVING. THE LATEST ROAD CONDITIONS PROVIDED BY THE WYOMING DEPARTMENT OF TRANSPORTATION ARE AVAILABLE BY CALLING 5-1-1 OR ON THE INTERNET AT WYOROAD.INFO. && $$ AEM
757 WWUS45 KRIW 220931 WSWRIW URGENT - WINTER WEATHER MESSAGE NATIONAL WEATHER SERVICE RIVERTON WY 231 AM MST THU DEC 22 2011 ...WINTER STORM TO CONTINUE TO IMPACT SOUTH AND CENTRAL WYOMING THIS MORNING... .AN UPPER LEVEL LOW PRESSURE SYSTEM WILL CONTINUE TO SLIDE SOUTH ACROSS EASTERN UTAH. SNOWFALL HAD ENDED ACROSS PORTIONS OF CENTRAL WYOMING THIS MORNING...WITH MAINLY LIGHT SNOW ACROSS THE REMAINDER OF CENTRAL AND SOUTHERN WYOMING. LOCALLY HEAVIER SNOW CONTINUES AROUND THE SOUTH PASS AREA. GUSTY WINDS CONTINUED TO CAUSE AREAS OF BLOWING AND DRIFTING SNOW AND AREAS OF REDUCED VISIBILITY...ESPECIALLY ALONG INTERSTATE 80. WYZ018-022-221045- /O.CAN.KRIW.WS.W.0014.000000T0000Z-111222T1200Z/ LANDER FOOTHILLS-CASPER MOUNTAIN- INCLUDING THE CITY OF...LANDER 231 AM MST THU DEC 22 2011 ...WINTER STORM WARNING IS CANCELLED... THE NATIONAL WEATHER SERVICE IN RIVERTON HAS CANCELLED THE WINTER STORM WARNING. SNOWFALL HAS WEAKENED ACROSS THE AREA THIS MORNING. SIGNIFICANT ACCUMULATING SNOWFALL IS NO LONGER ANTICIPATED ACROSS THE AREA...THOUGH PERIODS OF LIGHT SNOW MAY REMAIN. $$ WYZ015-221200- /O.CON.KRIW.WS.W.0014.000000T0000Z-111222T1200Z/ WIND RIVER MOUNTAINS EAST- 231 AM MST THU DEC 22 2011 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 5 AM MST EARLY THIS MORNING... A WINTER STORM WARNING REMAINS IN EFFECT UNTIL 5 AM MST EARLY THIS MORNING. * SUMMARY AND TIMING...SNOW WILL GRADUALLY TAPER OFF EARLY THIS MORNING. * SNOW ACCUMULATIONS...THE EASTERN SLOPES OF THE WIND RIVER MOUNTAINS WILL SEE 9 TO 15 INCHES OF SNOWFALL BY THE END OF THE EVENT THIS MORNING. AS OF 9 PM...SNOWFALL AMOUNTS RANGED FROM 7 TO 20 INCHES ACROSS THE SOUTHERN WIND RIVER MOUNTAINS AND SOUTH PASS AREA. * WIND AND VISIBILITY...NORTHEAST WIND AT 25 TO 35 MPH WITH GUSTS TO 45 MPH OVER SOUTH PASS AND OTHER OPEN AREAS. VISIBILITY WILL BE NEAR ZERO AT TIMES IN HEAVY SNOW AND BLOWING SNOW. * IMPACTS...SOUTH PASS REMAINS CLOSED AS OF 2 AM THIS MORNING. TRAVEL OVER ANY OTHER ROADS OR SNOWMOBILE TRAILS WILL BE EXTREMELY HAZARDOUS WITH HEAVY SNOW AND NEAR WHITEOUT CONDITIONS. THE WIND CHILLS WILL DROP TO AS LOW AS MINUS 20 THROUGH THE MORNING HOURS. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER STORM WARNING FOR HEAVY SNOW MEANS SEVERE WINTER WEATHER CONDITIONS ARE EXPECTED OR OCCURRING. SIGNIFICANT AMOUNTS OF SNOW ARE FORECAST THAT WILL MAKE TRAVEL DANGEROUS. ONLY TRAVEL IN AN EMERGENCY. IF YOU MUST TRAVEL...KEEP AN EXTRA FLASHLIGHT... FOOD...AND WATER IN YOUR VEHICLE IN CASE OF AN EMERGENCY. THE LATEST ROAD CONDITIONS PROVIDED BY THE WYOMING DEPARTMENT OF TRANSPORTATION ARE AVAILABLE BY CALLING 5-1-1 OR ON THE INTERNET AT WYOROAD.INFO. && $$ WYZ019-221200- /O.CON.KRIW.WW.Y.0043.000000T0000Z-111222T1200Z/ GREEN MOUNTAINS AND RATTLESNAKE RANGE- INCLUDING THE CITY OF...JEFFREY CITY 231 AM MST THU DEC 22 2011 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 5 AM MST EARLY THIS MORNING... A WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 5 AM MST EARLY THIS MORNING. * SUMMARY AND TIMING...SNOW WILL GRADUALLY TAPER OFF THIS MORNING. * SNOW ACCUMULATIONS...WIDESPREAD SNOWFALL OF 4 TO 6 INCHES IS EXPECTED ACROSS THE AREA...WITH LOCALLY HIGHER AMOUNTS POSSIBLE. 9 INCHES OF SNOW WAS REPORTED OVER BEAVER RIM AT 11 PM WEDNESDAY. * WIND AND VISIBILITY...NORTHERLY WIND OF 20 TO 30 MPH IS EXPECTED REMAIN THIS MORNING... REDUCING VISIBILITIES TO NEAR WHITEOUT CONDITIONS AT TIMES. * IMPACTS...TRAVEL ALONG HIGHWAY 287 WILL BE HAZARDOUS. EXPECT TO ENCOUNTER SLICK AND SNOW PACKED ROADS... WITH REDUCED VISIBILITIES IN HEAVY SNOW AND BLOWING SNOW. HIGHWAY 287 BETWEEN SWEETWATER STATION AND THE HIGHWAY 28/287 JUNCTION WAS CLOSED AS OF 2 AM. WIND CHILLS WILL DIP TO BETWEEN ZERO AND 10 BELOW THIS MORNING. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER WEATHER ADVISORY MEANS THAT PERIODS OF SNOW AND BLOWING SNOW WILL CAUSE TRAVEL DIFFICULTIES. BE PREPARED FOR SLIPPERY ROADS AND LIMITED VISIBILITIES...AND USE CAUTION WHILE DRIVING. THE LATEST ROAD CONDITIONS PROVIDED BY THE WYOMING DEPARTMENT OF TRANSPORTATION ARE AVAILABLE BY CALLING 5-1-1 OR ON THE INTERNET AT WYOROAD.INFO. && $$ WYZ028>030-221200- /O.CON.KRIW.WW.Y.0043.000000T0000Z-111222T1200Z/ ROCK SPRINGS AND GREEN RIVER-FLAMING GORGE-EAST SWEETWATER COUNTY- INCLUDING THE CITIES OF...ROCK SPRINGS...GREEN RIVER...WAMSUTTER 231 AM MST THU DEC 22 2011 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 5 AM MST EARLY THIS MORNING... A WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 5 AM MST EARLY THIS MORNING. * SUMMARY AND TIMING...LIGHT SNOW WILL CONTINUE THIS MORNING. GUSTY NORTHEAST WIND WILL CONTINUE...ESPECIALLY EAST OF ROCK SPRINGS TO WAMSUTTER. SNOW WILL GRADUALLY TAPER OFF FROM THE NORTH THIS MORNING...WITH ANY WIDESPREAD SNOWFALL MOVING SOUTH OF INTERSTATE 80 BY 8 AM. * SNOW ACCUMULATIONS...SNOWFALL OF 2 TO 4 INCHES IS EXPECTED WITH LOCALLY HIGHER AMOUNTS NEAR THE MOUNTAINS OF SOUTHERN SWEETWATER COUNTY. * WIND AND VISIBILITY...NORTHEAST WIND OF 25 TO 35 MPH WITH GUSTS AROUND 45 MPH CAN BE EXPECTED WHICH WILL CAUSE CONSIDERABLE BLOWING AND DRIFTING SNOW AND WHITEOUT CONDITIONS AT TIMES THIS MORNING. * IMPACTS...TRAVEL ALONG INTERSTATE 80 AND THE STATE HIGHWAYS ACROSS SWEETWATER COUNTY WILL BE TREACHEROUS THIS MORNING. SNOW AND WIND CONTINUE TO COMBINE TO PRODUCE SLICK TRAVEL AND SHARPLY REDUCED VISIBILITY...ALONG WITH BITTER WIND CHILLS. WIND CHILLS WILL REMAIN AS LOW AS MINUS 10 TONIGHT. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER WEATHER ADVISORY MEANS THAT PERIODS OF SNOW AND BLOWING SNOW WILL CAUSE TRAVEL DIFFICULTIES. BE PREPARED FOR SLIPPERY ROADS AND LIMITED VISIBILITIES...AND USE CAUTION WHILE DRIVING. THE LATEST ROAD CONDITIONS PROVIDED BY THE WYOMING DEPARTMENT OF TRANSPORTATION ARE AVAILABLE BY CALLING 5-1-1 OR ON THE INTERNET AT WYOROAD.INFO. && $$ BRANHAM
358 WWUS45 KRIW 221140 WSWRIW URGENT - WINTER WEATHER MESSAGE NATIONAL WEATHER SERVICE RIVERTON WY 440 AM MST THU DEC 22 2011 WYZ015-221245- /O.EXP.KRIW.WS.W.0014.000000T0000Z-111222T1200Z/ WIND RIVER MOUNTAINS EAST- 440 AM MST THU DEC 22 2011 ...WINTER STORM WARNING WILL EXPIRE AT 5 AM MST EARLY THIS MORNING... THE WINTER STORM WARNING WILL EXPIRE AT 5 AM MST EARLY THIS MORNING...HOWEVER ROADS WILL REMAIN SLICK AND HAZARDOUS THIS MORNING. $$ WYZ019-221245- /O.EXP.KRIW.WW.Y.0043.000000T0000Z-111222T1200Z/ GREEN MOUNTAINS AND RATTLESNAKE RANGE- INCLUDING THE CITY OF...JEFFREY CITY 440 AM MST THU DEC 22 2011 ...WINTER WEATHER ADVISORY WILL EXPIRE AT 5 AM MST EARLY THIS MORNING... THE WINTER WEATHER ADVISORY WILL EXPIRE AT 5 AM MST EARLY THIS MORNING...HOWEVER ROADS WILL REMAIN SLICK AND HAZARDOUS THIS MORNING. $$ WYZ028>030-221245- /O.EXP.KRIW.WW.Y.0043.000000T0000Z-111222T1200Z/ ROCK SPRINGS AND GREEN RIVER-FLAMING GORGE-EAST SWEETWATER COUNTY- INCLUDING THE CITIES OF...ROCK SPRINGS...GREEN RIVER...WAMSUTTER 440 AM MST THU DEC 22 2011 ...WINTER WEATHER ADVISORY WILL EXPIRE AT 5 AM MST EARLY THIS MORNING... THE WINTER WEATHER ADVISORY WILL EXPIRE AT 5 AM MST EARLY THIS MORNING...HOWEVER ROADS WILL REMAIN SLICK AND HAZARDOUS THIS MORNING. $$ 21
What forecasters said that day
The local office's own words before this winter storm warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.
NWS Riverton, WY wrote its last area forecast discussion before this winter storm warning went out at Dec 21, 9:50 AM MST, 29 minutes earlier.
Area forecast discussion, Dec 21, 9:50 AM MST, 29 minutes before
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE RIVERTON WY 950 AM MST WED DEC 21 2011 .SHORT TERM...TODAY THROUGH FRIDAY NIGHT UPDATED TO UPGRADE NATRONA COUNTY...THE LANDER FOOTHILLS AND THE EAST SLOPE OF THE WIND RIVERS TO WINTER STORM WARNINGS THROUGH TONIGHT. THE LOWER ELEVATIONS OF NATRONA COUNTY ARE ALREADY REPORTING AT LEAST 1 TO 2 INCHES WITH LOCAL REPORTS UP TO 3 AND THE COLD FRONT HASN'T EVEN ARRIVED YET. THE JET STREAK PROVIDE THE EARLY MORNING SNOW AND NOW THE UPPER TROUGH DYNAMICS AND CONTINUED JET STREAK DYNAMICS COMBINED WITH UPSLOPE WILL PRODUCE MODERATE TO HEAVY SNOW AT TIMES THROUGH THIS EVENING BEFORE GRADUALLY TAPERING OFF. THE LANDER FOOTHILLS AND EAST SLOPE OF THE WINDS WILL BEGIN SNOWING SOON AND WILL BECOME QUITE HEAVY THIS AFTERNOON AND CONTINUE INTO THE EVENING. THE LATEST NAM AND GFS SHOW THE MAX FORCING ARRIVING IN THE EARLY EVENING WITH SNOW INCREASING FROM THE AFTERNOON INTO THE EVENING. SNOWFALL COULD EASILY BE AN INCH PER HOUR DURING THIS PERIOD. WINDS WILL ALSO BE A PROBLEM IN OPEN AREAS AND OVER SOUTH PASS LATER TODAY INTO TONIGHT. SNOWFALL WILL SPREAD ACROSS NORTHERN WYOMING THIS MORNING... ASSOCIATED WITH AN AREA OF LOW PRESSURE MOVING THROUGH THE INTERMOUNTAIN WEST. SNOWFALL WILL BEING ACROSS THE NORTHERN THIRD OF THE FORECAST AREA...AND WILL SPREAD SOUTH THROUGH THE MORNING AND EARLY AFTERNOON HOURS. MODELS SUPPORTIVE OF INCREASED DYNAMICS WITH THIS SYSTEM AS IT PROGRESSES THROUGH THE STATE...AND IT IS EXPECTED TO PRODUCE SIGNIFICANT SNOWFALL AMOUNTS ACROSS MUCH OF NORTHERN AND CENTRAL WYOMING. SNOWFALL WILL TAPER OFF ACROSS NORTHERN WYOMING LATE THIS AFTERNOON...WITH SNOWFALL CONTINUING ELSEWHERE THROUGH THE OVERNIGHT HOURS. DURING THE EARLY PORTIONS OF THE STORM...FAVORED UPSLOPE AREAS ACROSS NORTHERN WYOMING ARE EXPECTED TO SEE THE MOST SIGNIFICANT SNOWFALL ACCUMULATIONS OF AROUND 4 TO 6 INCHES THROUGH THE AFTERNOON. AS THE SYSTEM MOVES SOUTH...IT WILL ENABLE UPSLOPE CONDITIONS ACROSS THE WIND RIVER BASIN AND CASPER MOUNTAIN AND FOOTHILLS. THESE AREAS WILL SEE SIGNIFICANT SNOWFALL AS WELL...THOUGH MODELS HAVE TAPERED BACK ON EXPECTED ACCUMULATED SNOWFALL. BECAUSE OF THIS REDUCTION...HAVE CONVERTED WINTER STORM WATCHES TO WIDESPREAD ADVISORIES. TRAVEL ASSOCIATED WITH THE UPCOMING HOLIDAYS HAVE HELPED TO MAKE THE DECISIONS ON SOME STATEMENTS. WHILE SNOWFALL AMOUNTS MAY BE MORE BORDERLINE AT 2 TO 4 INCHES IN THE LOWER ELEVATIONS...ROADWAYS ARE EXPECTED TO BECOME TREACHEROUS...LEADING TO A POTENTIALLY SIGNIFICANT SOCIETAL IMPACT. THE MAIN AREA LEFT IN QUESTION IS SWEETWATER COUNTY. SNOWFALL IS NOT ANTICIPATED TO REACH INTO SOUTHERN WYOMING UNTIL THIS AFTERNOON. CONFIDENCE IS NOT HIGH IN SNOWFALL AMOUNTS ACROSS SOUTHERN WYOMING ASSOCIATED WITH THIS STORM...SO WILL LEAVE DECISIONS ON HIGHLIGHTS TO UPCOMING SHIFTS. FURTHER DETAILS REGARDING SPECIFIC SNOWFALL AMOUNTS AND TIMING ARE INCLUDED IN THE WINTER WEATHER PRODUCTS. THIS SYSTEM IS EXPECTED TO DEPART THE CWA BY LATE THURSDAY EVENING...WITH A DRY NORTHERLY FLOW MOVING OVER THE FORECAST AREA. GENERALLY BENIGN CONDITIONS EXPECTED THROUGH FRIDAY EVENING. MODELS HINTING AT THE ARRIVAL OF ANOTHER DISTURBANCE FRIDAY EVENING. HAVE LEFT INHERITED LOW POPS TO ACCOUNT FOR MOISTURE ASSOCIATED WITH THIS UPCOMING SYSTEM. .LONG TERM...SATURDAY THROUGH WEDNESDAY A MAINLY DRY AND SEASONABLY COLD TEMPERATURES ARE EXPECTED FOR CHRISTMAS WEEKEND. MEDIUM RANGE MODELS GENERALLY SHOW A SHEAR AXIS MOVING ACROSS THE AREA EARLY SATURDAY...WITH BRIEF RIDGING DEVELOPING...BEFORE BREAKING DOWN CHRISTMAS DAY AND/OR MONDAY...AS A SHORTWAVE TROUGH PUSHES ACROSS THE NORTHERN ROCKIES. THE 00Z GFS IS FASTER WITH THIS SYSTEM BY ABOUT 12-24 HOURS THAN THE ECMWF AND GEM 00Z SOLUTIONS. EITHER WAY MOISTURE IS LIMITED AND MAIN DYNAMICS SHOULD REMAIN NORTH OF THE FORECAST AREA...SO PRECIPITATION CHANCES WILL REMAIN SLIM AND MAINLY ACROSS THE NORTH/NORTHWEST. MODELS ARE HINTING AT DECENT GAP FLOW DEVELOPING ACROSS THE CODY FOOTHILLS SATURDAY NIGHT/SUNDAY. GLOBAL MODELS ARE SHOWING A PATTERN SHIFT TO A MAINLY WESTERLY FLOW...WITH PERIODIC SHORTWAVE TROUGHS EARLY TO MIDDLE OF NEXT WEEK. THIS WOULD BE A MORE CLIMATOLOGICAL PATTERN FOR THIS TIME OF YEAR FAVORING THE WEST FOR OCCASIONAL SIGNIFICANT SNOWFALL. HOWEVER...TIMING OF SYSTEMS AND CONFIDENCE IN PATTERN SHIFT IS LOW AT THIS TIME...THEREFORE WILL BROAD BRUSH...MAINLY LOW POPS ACROSS THE WEST...WHILE LEAVING AREAS EAST OF THE DIVIDE DRY FOR NOW. ALSO THIS PATTERN SHOULD RESULT IN A BREEZY TO WINDY CONDITIONS. TEMPERATURES WILL REMAIN TRICKY IN THE EXTENDED...AS MIXED AREAS WILL PROBABLY SEE SEASONAL TO ABOVE AVERAGE TEMPERATURES...WHILE THE BASINS WILL PROBABLY REMAIN TRAPPED UNDER A DECENT INVERSION AND REMAIN SLIGHTLY BELOW AVERAGE. .AVIATION.../12Z ISSUANCE/ IFR CEILINGS AND VISIBILITIES WITH STRATUS AND SNOW AND AREAS OF FREEZING FOG WILL BE WIDESPREAD WITH TERRAIN OBSCURATIONS ACROSS THE NORTHERN AND WESTERN MOUNTAINS...KJAC...AS WELL AS THE BIG HORN BASIN...KCOD...KPOY...KWRL AND KGEY AND EASTERN JOHNSON COUNTY...KBYG. VFR CONDITIONS WILL CONTINUE THROUGH 18Z WITH STRONG SURFACE WINDS ACROSS THE SOUTH. THE IFR CONDITIONS WILL SPREAD SOUTH INTO THE WIND RIVER BASIN...KRIW AND KLND AND NATRONA COUNTY...KCPR FROM 12Z THROUGH 18Z WITH WIDESPREAD TERRAIN OBSCURATIONS ACROSS ALL BUT THE SOUTHWEST. FROM 18Z THROUGH 22Z THE IFR CONDITIONS WILL COMPLETE THE SPREAD ACROSS THE REMAINDER OF THE SOUTHWEST INTO KRKS...KPNA AND KBPI. SOME IMPROVING CEILINGS AND VISIBILITIES WILL OCCUR WEST OF THE CONTINENTAL DIVIDE ACROSS TETON AND WESTERN LINCOLN COUNTIES AFTER 22/02Z WITH MVFR TO VFR CONDITIONS DEVELOPING AT KJAC... KBPI...KPNA AND KAFO AS THE SURFACE TO 15K FT WINDS SHIFT TO THE NORTHEAST AND START DOWNSLOPING AND DRYING INTO JACKSON HOLE...THE UPPER GREEN RIVER BASIN AND THE STAR VALLEY. .FIRE WEATHER... A SIGNIFICANT WINTER SYSTEM WILL IMPACT MUCH OF CENTRAL AND EASTERN WYOMING TODAY. SNOWFALL WILL BEGIN ACROSS NORTHERN WYOMING THIS MORNING...AND WILL SPREAD SOUTH THROUGH THE MORNING AND EARLY AFTERNOON HOURS. SNOWFALL WILL CONTINUE ACROSS PORTIONS OF THE FORECAST AREA THROUGH THURSDAY MORNING BEFORE THE SYSTEM SLIDE TOO FAR SOUTH. TEMPERATURES WILL REMAIN COOL UNDER THE INFLUENCE OF THIS SYSTEM. SNOWFALL ACCUMULATIONS AND TIMING CAN BE FOUND IN THE CURRENT WINTER WEATHER PRODUCTS. && .RIW WATCHES/WARNINGS/ADVISORIES... WINTER WEATHER ADVISORY UNTIL 5 AM MST THURSDAY WYZ017-019. WINTER STORM WARNING UNTIL 5 AM MST THURSDAY WYZ015-018-020-022. WINTER WEATHER ADVISORY UNTIL 11 PM MST THIS EVENING WYZ008>011. WINTER WEATHER ADVISORY UNTIL 5 PM MST THIS AFTERNOON WYZ002-003-005>007. && UPDATE...SKRBAC SHORT TERM...BRANHAM LONG TERM...WM AVIATION...WM FIRE WEATHER...BRANHAM
Hazardous weather outlook, Dec 21, 3:00 AM MST, 7 hours 19 minutes before
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE RIVERTON WY 300 AM MST WED DEC 21 2011 WYZ001>020-022>030-221300- ABSAROKA MOUNTAINS-BIGHORN MOUNTAINS SOUTHEAST- BIGHORN MOUNTAINS WEST-CASPER MOUNTAIN-CODY FOOTHILLS- EAST SWEETWATER COUNTY-FLAMING GORGE- GREEN MOUNTAINS AND RATTLESNAKE RANGE-JACKSON HOLE-LANDER FOOTHILLS- NATRONA COUNTY LOWER ELEVATIONS-NORTH BIG HORN BASIN- NORTHEAST JOHNSON COUNTY-OWL CREEK AND BRIDGER MOUNTAINS- ROCK SPRINGS AND GREEN RIVER-SALT RIVER AND WYOMING RANGES- SOUTH LINCOLN COUNTY-SOUTHEAST BIG HORN BASIN- SOUTHEAST JOHNSON COUNTY-SOUTHWEST BIG HORN BASIN-STAR VALLEY- TETON AND GROS VENTRE MOUNTAINS-UPPER GREEN RIVER BASIN- UPPER GREEN RIVER BASIN FOOTHILLS-UPPER WIND RIVER BASIN- WIND RIVER BASIN-WIND RIVER MOUNTAINS EAST-WIND RIVER MOUNTAINS WEST- YELLOWSTONE NATIONAL PARK- 300 AM MST WED DEC 21 2011 ...WINTER WEATHER ADVISORIES IN EFFECT TODAY THROUGH THURSDAY MORNING FOR MUCH OF CENTRAL WYOMING... THIS HAZARDOUS WEATHER OUTLOOK IS FOR WESTERN AND CENTRAL WYOMING. .DAY ONE...TODAY AND TONIGHT SIGNIFICANT SNOWFALL IS EXPECTED ACROSS MUCH OF CENTRAL WYOMING TODAY AND TONIGHT...WITH LIGHTER AMOUNTS OF SNOW WEST OF THE DIVIDE. PLEASE REFER TO THE CURRENT WINTER WEATHER PRODUCTS FOR THE LATEST INFORMATION ON THIS ONGOING WINTER STORM. .DAYS TWO THROUGH SEVEN...THURSDAY THROUGH TUESDAY THURSDAY...SNOWFALL WILL CONTINUE ACROSS SOUTHERN WYOMING THROUGH THURSDAY AFTERNOON. THIS SNOWFALL WILL IMPACT THE I80 CORRIDOR THROUGH SWEETWATER COUNTY THROUGH LATE THURSDAY MORNING...WITH SLICK AND SNOW PACKED ROADS POSSIBLE. GUSTY NORTH WIND OVER THE AREA WILL ALSO CREATE SOME BLOWING AND DRIFTING SNOW. SNOWFALL WILL TAPER OFF THROUGH THURSDAY EVENING. .SPOTTER INFORMATION STATEMENT... SPOTTERS ARE ENCOURAGED TO REPORT SNOWFALL AMOUNTS. TEAM RIVERTON
In the hours before
Special weather statement, Dec 21, 6:02 AM MST, 4 hours 17 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE RIVERTON WY 602 AM MST WED DEC 21 2011 WYZ005>007-017-211500- OWL CREEK AND BRIDGER MOUNTAINS-SOUTHEAST BIG HORN BASIN- SOUTHWEST BIG HORN BASIN-WIND RIVER BASIN- 602 AM MST WED DEC 21 2011 THROUGH THE MORNING COMMUTE...AREAS OF MODERATE TO HEAVY SNOW WILL CONTINUE ACROSS THE SOUTHERN BIG HORN BASIN...SOUTHWARD INTO THE NORTHERN WIND RIVER BASIN. THIS WILL IMPACT TRAVELERS BETWEEN WORLAND AND SHOSHONI...INCLUDING THERMOPOLIS AND THE WIND RIVER CANYON. ROADS WILL BE SLICK AND SNOWPACKED THIS MORNING...AND VISIBILITY WILL GENERALLY RANGE FROM A QUARTER OF A MILE TO A MILE. 21
Special weather statement, Dec 21, 6:38 AM MST, 3 hours 41 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE RIVERTON WY 638 AM MST WED DEC 21 2011 WYZ007-017-211500- OWL CREEK AND BRIDGER MOUNTAINS-WIND RIVER BASIN- 638 AM MST WED DEC 21 2011 THROUGH THE MORNING COMMUTE...AREAS OF LIGHT TO MODERATE SNOW WILL CONTINUE TO AFFECT AREAS...MAINLY FROM AREAS NORTH AND EAST OF THE RIVERTON AREA...INCLUDING SHOSHONI...PAVILLION...AND THE WIND RIVER CANYON. ROADS WILL BECOME SLICK AND SNOWPACKED THIS MORNING...AND VISIBILITY WILL GENERALLY RANGE FROM A HALF A MILE TO A MILE IN SNOW. WYZ020-022-211500- CASPER MOUNTAIN-NATRONA COUNTY LOWER ELEVATIONS- 638 AM MST WED DEC 21 2011 THROUGH THE MORNING COMMUTE...AREAS OF LIGHT TO MODERATE SNOW WILL CONTINUE TO DEVELOP ACROSS NATRONA COUNTY. THE SNOW IS EXPECTED TO BECOME HEAVIER AND MORE WIDESPREAD AS THE MORNING PROGRESSES. ROADS WILL BECOME SLICK AND SNOWPACKED THIS MORNING...AND VISIBILITY WILL BE REDUCED TO NEAR A HALF A MILE AT TIMES. WYZ003-005-006-211500- CODY FOOTHILLS-SOUTHEAST BIG HORN BASIN-SOUTHWEST BIG HORN BASIN- 638 AM MST WED DEC 21 2011 THROUGH THE MORNING COMMUTE...AREAS OF LIGHT TO MODERATE SNOW WILL CONTINUE ACROSS MUCH OF THE BIG HORN BASIN. ROADS WILL BECOME SLICK AND SNOWPACKED THIS MORNING...AND VISIBILITY WILL BE REDUCED TO NEAR A HALF A MILE AT TIMES. 21
The office that day
Everything else NWS Riverton, WY issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Dec 20, 9:25 PM MST | Winter Weather Advisory | RIW | Big Horn, Fremont, Hot Springs, Johnson, Natrona, Park and 3 more | 32 hr |
Nearby
Winter Storm Warnings in Wyoming, 2011Every winter storm warning in 2011
Sources
The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.