Alert archive / Wyoming / Winter Storm Warnings in 2011
Winter Storm Warning 4, NWS Riverton, WY
NWS Riverton, WY issued this winter storm warning at Feb 19, 2011, 10:47 AM MST for 6 counties in Wyoming. It took effect at Feb 19, 2011, 12:00 PM MST. It was in force for 24 hr. 1 report 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
- Feb 19, 2011, 10:47 AM MST (17:47 UTC)
- In effect from
- Feb 19, 2011, 12:00 PM MST
- Expired
- Feb 20, 2011, 12:00 PM MST
- In force
- 24 hr
- Issued by
- NWS Riverton, WY
Counties Fremont County, WY, Hot Springs County, WY, Johnson County, WY, Natrona County, WY, Sublette County, WY, Sweetwater County, WY
The radar
The Riverton/Lander radar (KRIW), 22 km from the middle of the area, began a volume at 17:48 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 |
|---|---|---|---|
| Feb 19, 10:21 PM MST | SNOW 1 | 4.5 Nw Riverton, WY | RIVERTON ASOS |
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, 5.8 hours before the alert went out and 16 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
- 1972 m above ground
- 0-6 km bulk shear
- 67 kt
- 0-1 km storm-relative helicity
- 80 m²/s²
- 0-3 km storm-relative helicity
- 218 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
260 WWUS45 KRIW 191747 WSWRIW URGENT - WINTER WEATHER MESSAGE NATIONAL WEATHER SERVICE RIVERTON WY 1047 AM MST SAT FEB 19 2011 ...A WINTER STORM WILL BRING SNOW AND WIND TO MUCH OF SOUTHERN CENTRAL AND NORTHERN WYOMING TODAY THROUGH SUNDAY MORNING... .A PACIFIC LOW PRESSURE STORM SYSTEM WILL COLLIDE WITH COLD CANADIAN AIR OVER SOUTHERN...CENTRAL AND NORTHERN WYOMING TODAY. SNOW WILL INCREASE ACROSS THE AREA THIS AFTERNOON AND EVENING. THE SNOW WILL BE HEAVY AT TIMES INTO SUNDAY MORNING. ALONG WITH THE SNOW AREAS OF STRONG NORTHEAST WINDS WILL CAUSE BLOWING AND DRIFTING SNOW. THE SNOWFALL IS EXPECTED TO TAPER OFF BY NOON SUNDAY. WYZ010-011-201000- /O.UPG.KRIW.WS.A.0003.110220T0000Z-110220T1900Z/ /O.NEW.KRIW.WS.W.0004.110219T1900Z-110220T1900Z/ NORTHEAST JOHNSON COUNTY-SOUTHEAST JOHNSON COUNTY- INCLUDING THE CITIES OF...BUFFALO...KAYCEE 1047 AM MST SAT FEB 19 2011 ...WINTER STORM WARNING IN EFFECT UNTIL NOON MST SUNDAY... THE NATIONAL WEATHER SERVICE IN RIVERTON HAS ISSUED A WINTER STORM WARNING FOR SNOW AND BLOWING SNOW...WHICH IS IN EFFECT UNTIL NOON MST SUNDAY. THE WINTER STORM WATCH IS NO LONGER IN EFFECT. * SUMMARY AND TIMING...SNOW WILL INCREASE ACROSS JOHNSON COUNTY THIS AFTERNOON AND EVENING. THE SNOW WILL BE HEAVY AT TIMES TONIGHT INTO SUNDAY MORNING. ALONG WITH THE SNOW...AREAS OF STRONG NORTHEAST WINDS WILL CAUSE BLOWING AND DRIFTING SNOW. THE SNOWFALL IS EXPECTED TO TAPER OFF BY NOON SUNDAY. * SNOW ACCUMULATIONS...5 TO 10 INCHES ARE EXPECTED. * WIND AND VISIBILITY...NORTHEAST WINDS OF 25 TO 30 MPH ARE EXPECTED TO CAUSE BLOWING AND DRIFTING SNOW WITH VISIBILITY BELOW A QUARTER MILE. * IMPACTS...TRAVEL MAY BECOME DIFFICULT WITH SLICK SNOW PACKED ROADS AND NEAR WHITE OUT CONDITIONS ALONG INTERSTATES 90 AND 25. 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. && $$ WYZ020-022-201000- /O.UPG.KRIW.WS.A.0003.110220T0000Z-110220T1900Z/ /O.NEW.KRIW.WS.W.0004.110219T1900Z-110220T1900Z/ NATRONA COUNTY LOWER ELEVATIONS-CASPER MOUNTAIN- INCLUDING THE CITY OF...CASPER 1047 AM MST SAT FEB 19 2011 ...WINTER STORM WARNING IN EFFECT UNTIL NOON MST SUNDAY... THE NATIONAL WEATHER SERVICE IN RIVERTON HAS ISSUED A WINTER STORM WARNING FOR SNOW AND BLOWING SNOW...WHICH IS IN EFFECT UNTIL NOON MST SUNDAY. THE WINTER STORM WATCH IS NO LONGER IN EFFECT. * SUMMARY AND TIMING...SNOW WILL INCREASE ACROSS NATRONA COUNTY THIS AFTERNOON AND EVENING. THE SNOW WILL BE HEAVY AT TIMES TONIGHT INTO SUNDAY MORNING. ALONG WITH THE SNOW...AREAS OF STRONG NORTHEAST WINDS WILL CAUSE BLOWING AND DRIFTING SNOW. THE SNOWFALL IS EXPECTED TO TAPER OFF BY NOON SUNDAY. * SNOW ACCUMULATIONS...5 TO 10 INCHES ARE EXPECTED WITH UP TO A FOOT OF SNOW ON CASPER MOUNTAIN. * WIND AND VISIBILITY...NORTHEAST WINDS OF 20 TO 25 MPH ARE EXPECTED TO CAUSE BLOWING AND DRIFTING SNOW WITH VISIBILITY BELOW A QUARTER MILE. * IMPACTS...TRAVEL MAY BECOME DIFFICULT WITH SLICK SNOW PACKED ROADS AND NEAR WHITE OUT CONDITIONS ALONG INTERSTATE 25 AND HIGHWAYS 20...26 AND 220. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER STORM WARNING FOR HEAVY SNOW MEANS SEVERE WINTER WEATHER CONDITIONS ARE EXPECTED OR OCCURRING. SIGNIFICANT AMOUNTS OF SNOW ARE FORECAST THAT WILL MAKE TRAVEL DANGEROUS. ONLY TRAVEL IN AN EMERGENCY. IF YOU MUST TRAVEL...KEEP AN EXTRA FLASHLIGHT... FOOD...AND WATER IN YOUR VEHICLE IN CASE OF AN EMERGENCY. && $$ WYZ019-201000- /O.UPG.KRIW.WS.A.0003.110220T0000Z-110220T1900Z/ /O.NEW.KRIW.WS.W.0004.110219T1900Z-110220T1900Z/ GREEN MOUNTAINS AND RATTLESNAKE RANGE- INCLUDING THE CITY OF...JEFFREY CITY 1047 AM MST SAT FEB 19 2011 ...WINTER STORM WARNING IN EFFECT UNTIL NOON MST SUNDAY... THE NATIONAL WEATHER SERVICE IN RIVERTON HAS ISSUED A WINTER STORM WARNING FOR SNOW AND BLOWING SNOW...WHICH IS IN EFFECT UNTIL NOON MST SUNDAY. THE WINTER STORM WATCH IS NO LONGER IN EFFECT. * SUMMARY AND TIMING...SNOW WILL INCREASE ACROSS THE GREEN MOUNTAINS AND THE RATTLESNAKE RANGE THIS AFTERNOON AND EVENING. THE SNOW WILL BE HEAVY AT TIMES TONIGHT INTO SUNDAY MORNING. ALONG WITH THE SNOW...AREAS OF STRONG NORTHEAST WINDS WILL CAUSE BLOWING AND DRIFTING SNOW. THE SNOWFALL IS EXPECTED TO TAPER OFF BY NOON SUNDAY. * SNOW ACCUMULATIONS...4 TO 8 INCHES ARE EXPECTED. * WIND AND VISIBILITY...NORTHEAST WINDS OF 20 TO 25 MPH ARE EXPECTED TO CAUSE BLOWING AND DRIFTING SNOW WITH VISIBILITY BELOW A QUARTER MILE. * IMPACTS...TRAVEL MAY BECOME DIFFICULT WITH SLICK SNOW PACKED ROADS AND NEAR WHITE OUT CONDITIONS ALONG HIGHWAY 287 FROM BEAVER RIM TO MUDDY GAP. 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. && $$ WYZ017-201000- /O.UPG.KRIW.WS.A.0003.110220T0000Z-110220T1900Z/ /O.NEW.KRIW.WS.W.0004.110219T1900Z-110220T1900Z/ WIND RIVER BASIN- INCLUDING THE CITIES OF...RIVERTON...SHOSHONI 1047 AM MST SAT FEB 19 2011 ...WINTER STORM WARNING IN EFFECT UNTIL NOON MST SUNDAY... THE NATIONAL WEATHER SERVICE IN RIVERTON HAS ISSUED A WINTER STORM WARNING FOR SNOW AND BLOWING SNOW...WHICH IS IN EFFECT UNTIL NOON MST SUNDAY. THE WINTER STORM WATCH IS NO LONGER IN EFFECT. * SUMMARY AND TIMING...SNOW WILL INCREASE ACROSS THE WIND RIVER BASIN THIS AFTERNOON AND EVENING. THE SNOW WILL BE HEAVY AT TIMES TONIGHT INTO SUNDAY MORNING. ALONG WITH THE SNOW... AREAS OF STRONG NORTHEAST WINDS WILL CAUSE BLOWING AND DRIFTING SNOW. THE SNOWFALL IS EXPECTED TO TAPER OFF BY NOON SUNDAY. * SNOW ACCUMULATIONS...4 TO 8 INCHES ARE EXPECTED. * WIND AND VISIBILITY...NORTHEAST WINDS OF 20 TO 25 MPH ARE EXPECTED TO CAUSE BLOWING AND DRIFTING SNOW WITH VISIBILITY BELOW A QUARTER MILE. * IMPACTS...TRAVEL MAY BECOME DIFFICULT WITH SLICK SNOW PACKED ROADS AND NEAR WHITE OUT CONDITIONS ALONG HIGHWAYS 20...26 AND 789. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER STORM WARNING FOR HEAVY SNOW MEANS SEVERE WINTER WEATHER CONDITIONS ARE EXPECTED OR OCCURRING. SIGNIFICANT AMOUNTS OF SNOW ARE FORECAST THAT WILL MAKE TRAVEL DANGEROUS. ONLY TRAVEL IN AN EMERGENCY. IF YOU MUST TRAVEL...KEEP AN EXTRA FLASHLIGHT... FOOD...AND WATER IN YOUR VEHICLE IN CASE OF AN EMERGENCY. && $$ WYZ018-201000- /O.UPG.KRIW.WS.A.0003.110220T0000Z-110220T1900Z/ /O.NEW.KRIW.WS.W.0004.110219T1900Z-110220T1900Z/ LANDER FOOTHILLS- INCLUDING THE CITY OF...LANDER 1047 AM MST SAT FEB 19 2011 ...WINTER STORM WARNING IN EFFECT UNTIL NOON MST SUNDAY... THE NATIONAL WEATHER SERVICE IN RIVERTON HAS ISSUED A WINTER STORM WARNING FOR HEAVY SNOW...WHICH IS IN EFFECT UNTIL NOON MST SUNDAY. THE WINTER STORM WATCH IS NO LONGER IN EFFECT. * SUMMARY AND TIMING...SNOW WILL INCREASE ACROSS THE LANDER FOOTHILLS THIS AFTERNOON AND EVENING. THE SNOW WILL BE HEAVY AT TIMES TONIGHT INTO SUNDAY MORNING. ALONG WITH THE SNOW...AREAS OF STRONG NORTHEAST WINDS WILL CAUSE BLOWING AND DRIFTING SNOW. THE SNOWFALL IS EXPECTED TO TAPER OFF BY NOON SUNDAY. * SNOW ACCUMULATIONS...8 TO 12 INCHES ARE EXPECTED. * WIND AND VISIBILITY...NORTHEAST WINDS OF 15 TO 20 MPH ARE EXPECTED TO CAUSE DRIFTING SNOW WITH VISIBILITY BELOW A QUARTER MILE IN HEAVY SNOW AT TIMES. * IMPACTS...TRAVEL MAY BECOME DIFFICULT WITH SLICK SNOW PACKED ROADS AND NEAR WHITE OUT CONDITIONS ALONG HIGHWAYS 28...287 AND 789. 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. && $$ WYZ014-015-201000- /O.UPG.KRIW.WS.A.0003.110220T0000Z-110220T1900Z/ /O.NEW.KRIW.WS.W.0004.110219T1900Z-110220T1900Z/ WIND RIVER MOUNTAINS WEST-WIND RIVER MOUNTAINS EAST- 1047 AM MST SAT FEB 19 2011 ...WINTER STORM WARNING IN EFFECT UNTIL NOON MST SUNDAY... THE NATIONAL WEATHER SERVICE IN RIVERTON HAS ISSUED A WINTER STORM WARNING FOR HEAVY SNOW AND BLOWING SNOW...WHICH IS IN EFFECT UNTIL NOON MST SUNDAY. THE WINTER STORM WATCH IS NO LONGER IN EFFECT. * SUMMARY AND TIMING...SNOW WILL INCREASE ACROSS THE WIND RIVER MOUNTAINS THIS AFTERNOON AND EVENING. THE SNOW WILL BE HEAVY AT TIMES TONIGHT INTO SUNDAY MORNING. ALONG WITH THE SNOW...AREAS OF STRONG NORTHEAST WINDS WILL CAUSE BLOWING AND DRIFTING SNOW. THE SNOWFALL IS EXPECTED TO TAPER OFF BY NOON SUNDAY. * SNOW ACCUMULATIONS...10 TO 20 INCHES ARE EXPECTED. * WIND AND VISIBILITY...NORTHEAST WINDS OF 25 TO 30 MPH ARE EXPECTED TO CAUSE DRIFTING SNOW WITH VISIBILITY BELOW A QUARTER MILE IN HEAVY SNOW AT TIMES. * IMPACTS...TRAVEL MAY BECOME DIFFICULT WITH SLICK SNOW PACKED ROADS AND NEAR WHITE OUT CONDITIONS WITH BLOWING AND DRIFTING SNOW ALONG HIGHWAY 28 OVER SOUTH PASS. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER STORM WARNING FOR HEAVY SNOW MEANS SEVERE WINTER WEATHER CONDITIONS ARE EXPECTED OR OCCURRING. SIGNIFICANT AMOUNTS OF SNOW ARE FORECAST THAT WILL MAKE TRAVEL DANGEROUS. ONLY TRAVEL IN AN EMERGENCY. IF YOU MUST TRAVEL...KEEP AN EXTRA FLASHLIGHT... FOOD...AND WATER IN YOUR VEHICLE IN CASE OF AN EMERGENCY. && $$ WYZ005-007-201000- /O.UPG.KRIW.WS.A.0003.110220T0000Z-110220T1900Z/ /O.NEW.KRIW.WS.W.0004.110219T1900Z-110220T1900Z/ SOUTHWEST BIG HORN BASIN-OWL CREEK AND BRIDGER MOUNTAINS- INCLUDING THE CITY OF...THERMOPOLIS 1047 AM MST SAT FEB 19 2011 ...WINTER STORM WARNING IN EFFECT UNTIL NOON MST SUNDAY... THE NATIONAL WEATHER SERVICE IN RIVERTON HAS ISSUED A WINTER STORM WARNING FOR HEAVY SNOW...WHICH IS IN EFFECT UNTIL NOON MST SUNDAY. THE WINTER STORM WATCH IS NO LONGER IN EFFECT. * SUMMARY AND TIMING...SNOW WILL INCREASE ACROSS HOT SPRINGS COUNTY THIS AFTERNOON AND EVENING. THE SNOW WILL BE HEAVY AT TIMES TONIGHT INTO SUNDAY MORNING. ALONG WITH THE SNOW... AREAS OF STRONG NORTHEAST WINDS WILL CAUSE BLOWING AND DRIFTING SNOW. THE SNOWFALL IS EXPECTED TO TAPER OFF BY NOON SUNDAY. * SNOW ACCUMULATIONS...4 TO 8 INCHES ARE EXPECTED. LOCAL AMOUNTS AROUND A FOOT ARE POSSIBLE IN THE OWL CREEK AND BRIDGER MOUNTAINS. * WIND AND VISIBILITY...NORTHEAST WINDS OF 15 TO 20 MPH ARE EXPECTED TO CAUSE DRIFTING SNOW WITH VISIBILITY BELOW A QUARTER MILE IN HEAVY SNOW AT TIMES. * IMPACTS...TRAVEL MAY BECOME DIFFICULT WITH SLICK SNOW PACKED ROADS AND NEAR WHITE OUT CONDITIONS DUE TO HEAVY SNOW ALONG HIGHWAY 20 THROUGH THE WIND RIVER CANYON. 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. && $$ WYZ028>030-201000- /O.EXB.KRIW.WW.Y.0010.110219T1900Z-110220T1900Z/ ROCK SPRINGS AND GREEN RIVER-FLAMING GORGE-EAST SWEETWATER COUNTY- INCLUDING THE CITIES OF...ROCK SPRINGS...GREEN RIVER...WAMSUTTER 1047 AM MST SAT FEB 19 2011 ...WINTER WEATHER ADVISORY IN EFFECT UNTIL NOON MST SUNDAY... THE NATIONAL WEATHER SERVICE IN RIVERTON HAS ISSUED A WINTER WEATHER ADVISORY FOR SNOW AND BLOWING SNOW...WHICH IS IN EFFECT UNTIL NOON MST SUNDAY. * SUMMARY AND TIMING...SNOW WILL BEGIN FALLING EARLY THIS AFTERNOON...BECOMING MODERATE TO HEAVY AT TIMES. THE HEAVIEST SNOW IS EXPECTED TO FALL TONIGHT...WITH LIGHTER SNOW AFTER SUNRISE. * SNOW ACCUMULATIONS...3 TO 6 INCHES OF SNOW ARE EXPECTED. * WIND AND VISIBILITY...NORTHEAST AT 20 TO 25 MPH WITH VISIBILITY BELOW A QUARTER MILE AT TIMES IN BLOWING SNOW. * IMPACTS...MODERATE TO HEAVY SNOW AT TIMES WILL CAUSE ROADS TO BECOME SNOW PACKED AND SLICK. VISIBILITY WILL BE SIGNIFICANTLY REDUCED DURING PERIODS OF HEAVIER SNOW AND BLOWING SNOW ALONG INTERSTATE 80 AND OTHER HIGHWAYS IN SWEETWATER COUNTY. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER WEATHER ADVISORY MEANS THAT PERIODS OF SNOW AND BLOWING SNOW WILL CAUSE TRAVEL DIFFICULTIES. BE PREPARED FOR SLIPPERY ROADS AND LIMITED VISIBILITIES...AND USE CAUTION WHILE DRIVING. && $$ WYZ004-006-201000- /O.EXB.KRIW.WW.Y.0010.110219T1900Z-110220T1900Z/ NORTH BIG HORN BASIN-SOUTHEAST BIG HORN BASIN- INCLUDING THE CITIES OF...POWELL...LOVELL...GREYBULL...BASIN... WORLAND 1047 AM MST SAT FEB 19 2011 ...WINTER WEATHER ADVISORY IN EFFECT UNTIL NOON MST SUNDAY... THE NATIONAL WEATHER SERVICE IN RIVERTON HAS ISSUED A WINTER WEATHER ADVISORY FOR SNOW AND BLOWING SNOW...WHICH IS IN EFFECT UNTIL NOON MST SUNDAY. * SUMMARY AND TIMING...SNOW WILL BEGIN FALLING EARLY THIS AFTERNOON...BECOMING MODERATE TO HEAVY AT TIMES. THE HEAVIEST SNOW IS EXPECTED TO FALL TONIGHT...WITH LIGHTER SNOW AFTER SUNRISE. * SNOW ACCUMULATIONS...3 TO 6 INCHES OF SNOW ARE EXPECTED. * WIND AND VISIBILITY...NORTH 20 TO 25 MPH WITH VISIBILITY BELOW A QUARTER MILE AT TIMES IN BLOWING SNOW. * IMPACTS...MODERATE TO HEAVY SNOW AT TIMES WILL CAUSE ROADS TO BECOME SNOW PACKED AND SLICK. VISIBILITY WILL BE SIGNIFICANTLY REDUCED DURING PERIODS OF HEAVIER SNOW ACROSS HIGHWAYS IN THE BIG HORN BASIN. 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. && $$ WYZ008-009-201000- /O.EXB.KRIW.WW.Y.0010.110219T1900Z-110220T1900Z/ BIGHORN MOUNTAINS WEST-BIGHORN MOUNTAINS SOUTHEAST- 1047 AM MST SAT FEB 19 2011 ...WINTER WEATHER ADVISORY IN EFFECT UNTIL NOON MST SUNDAY... THE NATIONAL WEATHER SERVICE IN RIVERTON HAS ISSUED A WINTER WEATHER ADVISORY FOR SNOW AND BLOWING SNOW...WHICH IS IN EFFECT UNTIL NOON MST SUNDAY. * SUMMARY AND TIMING...SNOW WILL BEGIN FALLING EARLY THIS AFTERNOON...BECOMING MODERATE TO HEAVY AT TIMES. THE HEAVIEST SNOW IS EXPECTED TO FALL TONIGHT...WITH LIGHTER SNOW AFTER SUNRISE. * SNOW ACCUMULATIONS...5 TO 10 INCHES OF SNOW ARE EXPECTED. * WIND AND VISIBILITY...NORTHEAST AT 20 TO 25 MPH WITH VISIBILITY BELOW A QUARTER MILE AT TIMES IN BLOWING SNOW. * IMPACTS...MODERATE TO HEAVY SNOW AT TIMES WILL CAUSE ROADS TO BECOME SNOW PACKED AND SLICK. VISIBILITY WILL BE SIGNIFICANTLY REDUCED DURING PERIODS OF HEAVIER SNOW OVER POWDER RIVER PASS. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER WEATHER ADVISORY MEANS THAT PERIODS OF SNOW AND BLOWING SNOW WILL CAUSE TRAVEL DIFFICULTIES. BE PREPARED FOR SLIPPERY ROADS AND LIMITED VISIBILITIES...AND USE CAUTION WHILE DRIVING. && $$ WYZ027-201000- /O.EXB.KRIW.WW.Y.0010.110219T1900Z-110220T1200Z/ SOUTH LINCOLN COUNTY- INCLUDING THE CITIES OF...KEMMERER...COKEVILLE 1047 AM MST SAT FEB 19 2011 ...WINTER WEATHER ADVISORY IN EFFECT UNTIL 5 AM MST SUNDAY... THE NATIONAL WEATHER SERVICE IN RIVERTON HAS ISSUED A WINTER WEATHER ADVISORY FOR SNOW AND BLOWING SNOW...WHICH IS IN EFFECT UNTIL 5 AM MST SUNDAY. * SUMMARY AND TIMING...SNOW WILL INCREASE EARLY THIS AFTERNOON...BECOMING MODERATE TO HEAVY AT TIMES. THE HEAVIEST SNOW IS EXPECTED TO FALL THIS EVENING...WITH LIGHTER SNOW AFTER MIDNIGHT. * SNOW ACCUMULATIONS...3 TO 6 INCHES OF SNOW ARE EXPECTED. * WIND AND VISIBILITY...EAST AT 20 TO 25 MPH WITH VISIBILITY BELOW A QUARTER MILE AT TIMES IN BLOWING SNOW. * IMPACTS...MODERATE TO HEAVY SNOW AT TIMES WILL CAUSE ROADS TO BECOME SNOW PACKED AND SLICK. VISIBILITY WILL BE SIGNIFICANTLY REDUCED DURING PERIODS OF HEAVIER SNOW ACROSS HIGHWAYS IN SOUTHERN LINCOLN COUNTY. 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. && $$ WYZ024-201000- /O.EXB.KRIW.WW.Y.0010.110219T1900Z-110220T1200Z/ SALT RIVER AND WYOMING RANGES- 1047 AM MST SAT FEB 19 2011 ...WINTER WEATHER ADVISORY IN EFFECT UNTIL 5 AM MST SUNDAY... THE NATIONAL WEATHER SERVICE IN RIVERTON HAS ISSUED A WINTER WEATHER ADVISORY FOR SNOW AND BLOWING SNOW...WHICH IS IN EFFECT UNTIL 5 AM MST SUNDAY. * SUMMARY AND TIMING...SNOW WILL INCREASE EARLY THIS AFTERNOON...BECOMING MODERATE TO HEAVY AT TIMES. THE HEAVIEST SNOW IS EXPECTED TO FALL THIS EVENING...WITH LIGHTER SNOW AFTER MIDNIGHT. * SNOW ACCUMULATIONS...5 TO 10 INCHES OF SNOW ARE EXPECTED. * WIND AND VISIBILITY...EAST AT 15 TO 25 MPH WITH VISIBILITY BELOW A QUARTER MILE AT TIMES IN BLOWING SNOW. * IMPACTS...MODERATE TO HEAVY SNOW AT TIMES WILL CAUSE ROADS TO BECOME SNOW PACKED AND SLICK. VISIBILITY WILL BE SIGNIFICANTLY REDUCED DURING PERIODS OF HEAVIER SNOW. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER WEATHER ADVISORY MEANS THAT PERIODS OF SNOW AND BLOWING SNOW WILL CAUSE TRAVEL DIFFICULTIES. BE PREPARED FOR SLIPPERY ROADS AND LIMITED VISIBILITIES...AND USE CAUTION WHILE DRIVING. && $$ WYZ012-201000- /O.EXB.KRIW.WW.Y.0010.110219T1900Z-110220T1200Z/ TETON AND GROS VENTRE MOUNTAINS- 1047 AM MST SAT FEB 19 2011 ...WINTER WEATHER ADVISORY IN EFFECT UNTIL 5 AM MST SUNDAY... THE NATIONAL WEATHER SERVICE IN RIVERTON HAS ISSUED A WINTER WEATHER ADVISORY FOR SNOW AND BLOWING SNOW...WHICH IS IN EFFECT UNTIL 5 AM MST SUNDAY. * SUMMARY AND TIMING...SNOW WILL INCREASE EARLY THIS AFTERNOON...BECOMING MODERATE TO HEAVY AT TIMES. THE HEAVIEST SNOW IS EXPECTED TO FALL THIS EVENING...WITH LIGHTER SNOW AFTER MIDNIGHT. * SNOW ACCUMULATIONS...5 TO 10 INCHES OF SNOW ARE EXPECTED. * WIND AND VISIBILITY...NORTHEAST AT 15 TO 25 MPH WITH VISIBILITY BELOW A QUARTER MILE AT TIMES IN BLOWING SNOW. * IMPACTS...MODERATE TO HEAVY SNOW AT TIMES WILL CAUSE ROADS TO BECOME SNOW PACKED AND SLICK. VISIBILITY WILL BE SIGNIFICANTLY REDUCED DURING PERIODS OF HEAVIER SNOW OVER TETON AND TOGWOTEE PASSES. 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. && $$ WYZ003-201000- /O.EXB.KRIW.WW.Y.0010.110219T1900Z-110220T1900Z/ CODY FOOTHILLS- INCLUDING THE CITIES OF...CODY...MEETEETSE 1047 AM MST SAT FEB 19 2011 ...WINTER WEATHER ADVISORY IN EFFECT UNTIL NOON MST SUNDAY... THE NATIONAL WEATHER SERVICE IN RIVERTON HAS ISSUED A WINTER WEATHER ADVISORY FOR SNOW AND BLOWING SNOW...WHICH IS IN EFFECT UNTIL NOON MST SUNDAY. * SUMMARY AND TIMING...SNOW WILL INCREASE THIS AFTERNOON...BECOMING MODERATE TO HEAVY AT TIMES. THE HEAVIEST SNOW IS EXPECTED TO FALL TONIGHT...WITH LIGHTER SNOW AFTER SUNRISE. * SNOW ACCUMULATIONS...3 TO 6 INCHES OF SNOW ARE EXPECTED. * WIND AND VISIBILITY...NORTH 15 TO 25 MPH WITH VISIBILITY BELOW A QUARTER MILE AT TIMES IN BLOWING SNOW. * IMPACTS...MODERATE TO HEAVY SNOW AT TIMES WILL CAUSE ROADS TO BECOME SNOW PACKED AND SLICK. VISIBILITY WILL BE SIGNIFICANTLY REDUCED DURING PERIODS OF HEAVIER SNOW ACROSS THE HIGHWAYS OF PARK COUNTY. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER WEATHER ADVISORY MEANS THAT PERIODS OF SNOW AND BLOWING SNOW WILL CAUSE TRAVEL DIFFICULTIES. BE PREPARED FOR SLIPPERY ROADS AND LIMITED VISIBILITIES...AND USE CAUTION WHILE DRIVING. && $$ WYZ025-026-201000- /O.EXT.KRIW.WW.Y.0010.110219T1900Z-110220T1200Z/ UPPER GREEN RIVER BASIN FOOTHILLS-UPPER GREEN RIVER BASIN- INCLUDING THE CITIES OF...PINEDALE...LA BARGE...BIG PINEY... FARSON 1047 AM MST SAT FEB 19 2011 ...WINTER WEATHER ADVISORY NOW IN EFFECT UNTIL 5 AM MST SUNDAY... THE WINTER WEATHER ADVISORY IS NOW IN EFFECT UNTIL 5 AM MST SUNDAY. * SUMMARY AND TIMING...SNOW WILL BEGIN FALLING EARLY THIS AFTERNOON...BECOMING MODERATE TO HEAVY AT TIMES. THE HEAVIEST SNOW IS EXPECTED TO FALL THIS EVENING...WITH LIGHTER SNOW AFTER MIDNIGHT. * SNOW ACCUMULATIONS...3 TO 6 INCHES OF SNOW ARE EXPECTED. * WIND AND VISIBILITY...SOUTHEAST AT 10 TO 15 MPH. VISIBILITY BELOW ONE HALF MILE AT TIMES. * IMPACTS...MODERATE TO HEAVY SNOW AT TIMES WILL CAUSE ROADS TO BECOME SNOW PACKED AND SLICK. VISIBILITY WILL BE SIGNIFICANTLY REDUCED DURING PERIODS OF HEAVIER 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. && $$ C.BAKER
4 follow-up statements
338 WWUS45 KRIW 200149 WSWRIW URGENT - WINTER WEATHER MESSAGE NATIONAL WEATHER SERVICE RIVERTON WY 649 PM MST SAT FEB 19 2011 ...A WINTER STORM WILL BRING SNOW AND WIND TO MUCH OF SOUTHWEST AND CENTRAL WYOMING TONIGHT THROUGH SUNDAY MORNING... .A LOW PRESSURE SYSTEM WILL INTENSIFY ACROSS NORTHEAST COLORADO TONIGHT AND SLOWLY DRIFT EAST ACROSS NEBRASKA ON SUNDAY. PACIFIC MOISTURE PUSHING NORTHWARD FROM UTAH AND COLORADO WILL INTERACT WITH AN ARCTIC FRONT OVER CENTRAL WYOMING TO PRODUCE WIDESPREAD SNOWFALL...HEAVY AT TIMES TONIGHT THROUGH SUNDAY MORNING. ALONG WITH THE SNOW AREAS OF STRONG NORTHEAST WINDS WILL CAUSE BLOWING AND DRIFTING SNOW. THE SNOWFALL IS EXPECTED TO TAPER OFF BY NOON SUNDAY AS THE LOW PRESSURE SYSTEM DRIFTS EAST ACROSS THE PLAINS. WYZ010-011-201000- /O.CON.KRIW.WS.W.0004.000000T0000Z-110220T1900Z/ NORTHEAST JOHNSON COUNTY-SOUTHEAST JOHNSON COUNTY- INCLUDING THE CITIES OF...BUFFALO...KAYCEE 649 PM MST SAT FEB 19 2011 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL NOON MST SUNDAY... A WINTER STORM WARNING REMAINS IN EFFECT UNTIL NOON MST SUNDAY. * SUMMARY AND TIMING...SNOW WILL INTENSIFY OVER JOHNSON COUNTY THROUGH THE EVENING. THE SNOW WILL BE HEAVY AT TIMES TONIGHT INTO SUNDAY MORNING. ALONG WITH THE SNOW...AREAS OF BRISK NORTH WIND WILL CAUSE BLOWING AND DRIFTING SNOW. THE SNOWFALL IS EXPECTED TO TAPER OFF BY NOON SUNDAY. * SNOW ACCUMULATIONS...5 TO 10 INCHES ARE EXPECTED. * WIND AND VISIBILITY...NORTH WIND OF 20 TO 30 MPH IS EXPECTED TO CAUSE BLOWING AND DRIFTING SNOW WITH VISIBILITY BELOW A QUARTER MILE. * IMPACTS...ROADS AND HIGHWAYS HAVE BECOME SLICK AND SNOW-COVERED ACROSS JOHNSON COUNTY THIS EVENING. TRAVEL WILL BECOME INCREASINGLY DIFFICULT OVERNIGHT WITH THE ADDITIONAL SNOWFALL ALONG WITH LIMITED VISIBILITY IN BLOWING AND DRIFTING SNOW...WITH NEAR WHITE OUT CONDITIONS AT TIMES ALONG INTERSTATES 90 AND 25. 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. && $$ WYZ020-022-201000- /O.CON.KRIW.WS.W.0004.000000T0000Z-110220T1900Z/ NATRONA COUNTY LOWER ELEVATIONS-CASPER MOUNTAIN- INCLUDING THE CITY OF...CASPER 649 PM MST SAT FEB 19 2011 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL NOON MST SUNDAY... A WINTER STORM WARNING REMAINS IN EFFECT UNTIL NOON MST SUNDAY. * SUMMARY AND TIMING...SNOW WILL CONTINUE TO DEVELOP ACROSS NATRONA COUNTY FROM THE SOUTH AND WEST THIS EVENING AND BECOME HEAVY AT TIMES OVERNIGHT THROUGH SUNDAY MORNING. ALONG WITH THE SNOW...AREAS OF BRISK NORTH WINDS WILL CAUSE BLOWING AND DRIFTING SNOW. THE SNOWFALL IS EXPECTED TO TAPER OFF BY NOON SUNDAY. * SNOW ACCUMULATIONS...5 TO 10 INCHES ARE EXPECTED WITH UP TO A FOOT OF SNOW ON CASPER MOUNTAIN. * WIND AND VISIBILITY...NORTH WINDS OF 20 TO 25 MPH ARE EXPECTED TO CAUSE BLOWING AND DRIFTING SNOW WITH VISIBILITY BELOW A QUARTER MILE. * IMPACTS...TRAVEL MAY BECOME DIFFICULT WITH SLICK SNOW PACKED ROADS AND NEAR WHITE OUT CONDITIONS ALONG INTERSTATE 25 AND HIGHWAYS 20...26 AND 220 TONIGHT THROUGH SUNDAY 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. && $$ WYZ019-201000- /O.CON.KRIW.WS.W.0004.000000T0000Z-110220T1900Z/ GREEN MOUNTAINS AND RATTLESNAKE RANGE- INCLUDING THE CITY OF...JEFFREY CITY 649 PM MST SAT FEB 19 2011 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL NOON MST SUNDAY... A WINTER STORM WARNING REMAINS IN EFFECT UNTIL NOON MST SUNDAY. * SUMMARY AND TIMING...SNOWFALL INTENSITY WILL RAPIDLY INCREASE EARLY THIS EVENING ACROSS THE GREEN MOUNTAINS AND THE RATTLESNAKE RANGE. THE SNOW WILL BE HEAVY AT TIMES OVERNIGHT INTO SUNDAY MORNING. ALONG WITH THE SNOW...AREAS OF BRISK NORTHEAST WINDS WILL CAUSE BLOWING AND DRIFTING SNOW. THE SNOWFALL IS EXPECTED TO TAPER OFF BY NOON SUNDAY. * SNOW ACCUMULATIONS...4 TO 8 INCHES ARE EXPECTED. * WIND AND VISIBILITY...NORTHEAST WINDS OF 20 TO 25 MPH ARE EXPECTED TO CAUSE BLOWING AND DRIFTING SNOW WITH VISIBILITY BELOW A QUARTER MILE. * IMPACTS...TRAVEL MAY BECOME DIFFICULT WITH SLICK SNOW PACKED ROADS AND NEAR WHITE OUT CONDITIONS ALONG HIGHWAY 287 FROM BEAVER RIM TO MUDDY GAP TONIGHT THROUGH SUNDAY MORNING. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER STORM WARNING FOR HEAVY SNOW MEANS SEVERE WINTER WEATHER CONDITIONS ARE EXPECTED OR OCCURRING. SIGNIFICANT AMOUNTS OF SNOW ARE FORECAST THAT WILL MAKE TRAVEL DANGEROUS. ONLY TRAVEL IN AN EMERGENCY. IF YOU MUST TRAVEL...KEEP AN EXTRA FLASHLIGHT... FOOD...AND WATER IN YOUR VEHICLE IN CASE OF AN EMERGENCY. && $$ WYZ017-201000- /O.CON.KRIW.WS.W.0004.000000T0000Z-110220T1900Z/ WIND RIVER BASIN- INCLUDING THE CITIES OF...RIVERTON...SHOSHONI 649 PM MST SAT FEB 19 2011 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL NOON MST SUNDAY... A WINTER STORM WARNING REMAINS IN EFFECT UNTIL NOON MST SUNDAY. * SUMMARY AND TIMING...SNOW WILL RAPIDLY INCREASE FROM THE SOUTH ACROSS THE WIND RIVER BASIN EARLY THIS EVENING. THE SNOW WILL BE HEAVY AT TIMES OVERNIGHT INTO SUNDAY MORNING. ALONG WITH THE SNOW... AREAS OF BRISK NORTH WINDS WILL CAUSE BLOWING AND DRIFTING SNOW. THE SNOWFALL IS EXPECTED TO TAPER OFF BY NOON SUNDAY. * SNOW ACCUMULATIONS...4 TO 8 INCHES ARE EXPECTED. * WIND AND VISIBILITY...NORTH WINDS OF 20 TO 25 MPH ARE EXPECTED TO CAUSE BLOWING AND DRIFTING SNOW WITH VISIBILITY BELOW A QUARTER MILE AT TIMES. * IMPACTS...TRAVEL MAY BECOME DIFFICULT WITH SLICK SNOW PACKED ROADS AND NEAR WHITE OUT CONDITIONS ALONG HIGHWAYS 20...26 AND 789. 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. && $$ WYZ018-201000- /O.CON.KRIW.WS.W.0004.000000T0000Z-110220T1900Z/ LANDER FOOTHILLS- INCLUDING THE CITY OF...LANDER 649 PM MST SAT FEB 19 2011 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL NOON MST SUNDAY... A WINTER STORM WARNING REMAINS IN EFFECT UNTIL NOON MST SUNDAY. * SUMMARY AND TIMING...SNOW WILL RAPIDLY INCREASE ACROSS THE LANDER FOOTHILLS EARLY THIS EVENING. THE SNOW WILL BE HEAVY AT TIMES OVERNIGHT INTO SUNDAY MORNING. ALONG WITH THE SNOW... AREAS OF STRONG BRISK NORTHEAST WINDS WILL CAUSE BLOWING AND DRIFTING SNOW. THE SNOWFALL IS EXPECTED TO TAPER OFF BY NOON SUNDAY. * SNOW ACCUMULATIONS...8 TO 12 INCHES ARE EXPECTED. * WIND AND VISIBILITY...NORTHEAST WINDS OF 15 TO 20 MPH ARE EXPECTED TO CAUSE DRIFTING SNOW WITH VISIBILITY BELOW A QUARTER MILE IN HEAVY SNOW AT TIMES. * IMPACTS...TRAVEL MAY BECOME DIFFICULT WITH SLICK SNOW PACKED ROADS AND NEAR WHITE OUT CONDITIONS ALONG HIGHWAYS 28...287 AND 789. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER STORM WARNING FOR HEAVY SNOW MEANS SEVERE WINTER WEATHER CONDITIONS ARE EXPECTED OR OCCURRING. SIGNIFICANT AMOUNTS OF SNOW ARE FORECAST THAT WILL MAKE TRAVEL DANGEROUS. ONLY TRAVEL IN AN EMERGENCY. IF YOU MUST TRAVEL...KEEP AN EXTRA FLASHLIGHT... FOOD...AND WATER IN YOUR VEHICLE IN CASE OF AN EMERGENCY. && $$ WYZ014-015-201000- /O.CON.KRIW.WS.W.0004.000000T0000Z-110220T1900Z/ WIND RIVER MOUNTAINS WEST-WIND RIVER MOUNTAINS EAST- 649 PM MST SAT FEB 19 2011 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL NOON MST SUNDAY... A WINTER STORM WARNING REMAINS IN EFFECT UNTIL NOON MST SUNDAY. * SUMMARY AND TIMING...SNOW WILL RAPIDLY INCREASE ACROSS THE WIND RIVER MOUNTAINS EARLY THIS EVENING. THE SNOW WILL BE HEAVY AT TIMES OVERNIGHT INTO SUNDAY MORNING. ALONG WITH THE SNOW... AREAS OF STRONG NORTHEAST WINDS WILL CAUSE BLOWING AND DRIFTING SNOW. THE SNOWFALL IS EXPECTED TO TAPER OFF BY NOON SUNDAY. * SNOW ACCUMULATIONS...10 TO 20 INCHES ARE EXPECTED. * WIND AND VISIBILITY...AREAS OF NORTHEAST WINDS OF 25 TO 30 MPH ARE EXPECTED TO CAUSE BLOWING AND DRIFTING SNOW WITH VISIBILITY BELOW A QUARTER MILE AT TIMES. * IMPACTS...TRAVEL MAY BECOME DIFFICULT WITH SLICK SNOW PACKED ROADS AND NEAR WHITE OUT CONDITIONS WITH BLOWING AND DRIFTING SNOW ALONG HIGHWAY 28 OVER SOUTH PASS. 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. && $$ WYZ005-007-201000- /O.CON.KRIW.WS.W.0004.000000T0000Z-110220T1900Z/ SOUTHWEST BIG HORN BASIN-OWL CREEK AND BRIDGER MOUNTAINS- INCLUDING THE CITY OF...THERMOPOLIS 649 PM MST SAT FEB 19 2011 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL NOON MST SUNDAY... A WINTER STORM WARNING REMAINS IN EFFECT UNTIL NOON MST SUNDAY. * SUMMARY AND TIMING...SNOW WILL INCREASE ACROSS HOT SPRINGS COUNTY THIS EVENING. THE SNOW WILL BE HEAVY AT TIMES TONIGHT INTO SUNDAY MORNING. ALONG WITH THE SNOW... AREAS OF STRONG NORTHEAST WINDS WILL CAUSE BLOWING AND DRIFTING SNOW. THE SNOWFALL IS EXPECTED TO TAPER OFF BY NOON SUNDAY. * SNOW ACCUMULATIONS...4 TO 8 INCHES ARE EXPECTED. LOCAL AMOUNTS AROUND A FOOT ARE POSSIBLE IN THE OWL CREEK AND BRIDGER MOUNTAINS. * WIND AND VISIBILITY...NORTHEAST WINDS OF 15 TO 20 MPH ARE EXPECTED TO CAUSE DRIFTING SNOW WITH VISIBILITY BELOW A QUARTER MILE IN HEAVY SNOW AT TIMES. * IMPACTS...TRAVEL MAY BECOME DIFFICULT WITH SLICK SNOW PACKED ROADS AND NEAR WHITE OUT CONDITIONS DUE TO HEAVY SNOW ALONG HIGHWAY 20 THROUGH THE WIND RIVER CANYON. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER STORM WARNING FOR HEAVY SNOW MEANS SEVERE WINTER WEATHER CONDITIONS ARE EXPECTED OR OCCURRING. SIGNIFICANT AMOUNTS OF SNOW ARE FORECAST THAT WILL MAKE TRAVEL DANGEROUS. ONLY TRAVEL IN AN EMERGENCY. IF YOU MUST TRAVEL...KEEP AN EXTRA FLASHLIGHT... FOOD...AND WATER IN YOUR VEHICLE IN CASE OF AN EMERGENCY. && $$ WYZ025-026-201000- /O.CON.KRIW.WW.Y.0010.000000T0000Z-110220T1200Z/ UPPER GREEN RIVER BASIN FOOTHILLS-UPPER GREEN RIVER BASIN- INCLUDING THE CITIES OF...PINEDALE...LA BARGE...BIG PINEY... FARSON 649 PM MST SAT FEB 19 2011 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 5 AM MST SUNDAY... A WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 5 AM MST SUNDAY. * SUMMARY AND TIMING...AFTER A BREAK THIS AFTERNOON...SNOW WILL INCREASE RAPIDLY FROM THE SOUTH EARLY THIS EVENING...BECOMING MODERATE TO HEAVY AT TIMES THIS EVENING. THE SNOW IS THEN EXPECTED TO TAPER OFF AFTER MIDNIGHT. * SNOW ACCUMULATIONS...3 TO 6 INCHES OF SNOW ARE EXPECTED. * WIND AND VISIBILITY...VISIBILITY WILL FALL BELOW ONE HALF MILE AT TIMES IN HEAVIER SNOWFALL. * IMPACTS...MODERATE TO HEAVY SNOW AT TIMES WILL CAUSE ROADS TO BECOME SNOW PACKED AND SLICK. VISIBILITY WILL BE SIGNIFICANTLY REDUCED DURING PERIODS OF HEAVIER 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. && $$ WYZ028>030-201000- /O.CON.KRIW.WW.Y.0010.000000T0000Z-110220T1900Z/ ROCK SPRINGS AND GREEN RIVER-FLAMING GORGE-EAST SWEETWATER COUNTY- INCLUDING THE CITIES OF...ROCK SPRINGS...GREEN RIVER...WAMSUTTER 649 PM MST SAT FEB 19 2011 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL NOON MST SUNDAY... A WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL NOON MST SUNDAY. * SUMMARY AND TIMING...OCCASIONAL MODERATE SNOW WILL CONTINUE TO PUSH NORTH ACROSS THE AREA THIS EVENING WITH SNOWFALL GRADUALLY TAPERING OFF THROUGH SUNDAY MORNING. * SNOW ACCUMULATIONS...3 TO 6 INCHES OF SNOW ARE EXPECTED. * WIND AND VISIBILITY...VISIBILITY WILL FALL BELOW ONE-HALF MILE AT TIMES IN HEAVIER SNOWFALL. * IMPACTS...MODERATE SNOW AT TIMES WILL CAUSE ROADS TO BECOME SNOW PACKED AND SLICK. VISIBILITY WILL BE SIGNIFICANTLY REDUCED DURING PERIODS OF HEAVIER SNOW AND BLOWING SNOW ALONG INTERSTATE 80 AND OTHER HIGHWAYS IN SWEETWATER COUNTY. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER WEATHER ADVISORY MEANS THAT PERIODS OF SNOW AND BLOWING SNOW WILL CAUSE TRAVEL DIFFICULTIES. BE PREPARED FOR SLIPPERY ROADS AND LIMITED VISIBILITIES...AND USE CAUTION WHILE DRIVING. && $$ WYZ004-006-201000- /O.CON.KRIW.WW.Y.0010.000000T0000Z-110220T1900Z/ NORTH BIG HORN BASIN-SOUTHEAST BIG HORN BASIN- INCLUDING THE CITIES OF...POWELL...LOVELL...GREYBULL...BASIN... WORLAND 649 PM MST SAT FEB 19 2011 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL NOON MST SUNDAY... A WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL NOON MST SUNDAY. * SUMMARY AND TIMING...SNOWFALL WILL INCREASE FROM THE SOUTH THIS EVENING. THE HEAVIEST SNOW IS EXPECTED TO FALL OVERNIGHT...WITH LIGHTER SNOW AFTER SUNRISE. * SNOW ACCUMULATIONS...3 TO 5 INCHES OF SNOW ARE EXPECTED. * WIND AND VISIBILITY...NORTH 20 TO 25 MPH WITH VISIBILITY BELOW A QUARTER MILE AT TIMES IN BLOWING SNOW. * IMPACTS...MODERATE SNOW AT TIMES WILL CAUSE ROADS TO BECOME SNOW PACKED AND SLICK. VISIBILITY WILL BE SIGNIFICANTLY REDUCED DURING PERIODS OF HEAVIER SNOW ACROSS HIGHWAYS IN THE BIG HORN BASIN. 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. && $$ WYZ008-009-201000- /O.CON.KRIW.WW.Y.0010.000000T0000Z-110220T1900Z/ BIGHORN MOUNTAINS WEST-BIGHORN MOUNTAINS SOUTHEAST- 649 PM MST SAT FEB 19 2011 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL NOON MST SUNDAY... A WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL NOON MST SUNDAY. * SUMMARY AND TIMING...SNOW WILL INCREASE ACROSS THE BIG HORN MOUNTAINS EVENING...BECOMING MODERATE TO HEAVY AT TIMES OVERNIGHT. THE HEAVIEST SNOW IS EXPECTED TO FALL OVERNIGHT...WITH LIGHTER SNOW AFTER SUNRISE. * SNOW ACCUMULATIONS...5 TO 10 INCHES OF SNOW ARE EXPECTED. * WIND AND VISIBILITY...NORTHEAST AT 20 TO 25 MPH WITH VISIBILITY BELOW A QUARTER MILE AT TIMES IN BLOWING SNOW. * IMPACTS...MODERATE TO HEAVY SNOW AT TIMES WILL CAUSE ROADS TO BECOME SNOW PACKED AND SLICK. VISIBILITY WILL BE SIGNIFICANTLY REDUCED DURING PERIODS OF HEAVIER SNOW OVER POWDER RIVER PASS. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER WEATHER ADVISORY MEANS THAT PERIODS OF SNOW AND BLOWING SNOW WILL CAUSE TRAVEL DIFFICULTIES. BE PREPARED FOR SLIPPERY ROADS AND LIMITED VISIBILITIES...AND USE CAUTION WHILE DRIVING. && $$ WYZ027-201000- /O.CON.KRIW.WW.Y.0010.000000T0000Z-110220T1200Z/ SOUTH LINCOLN COUNTY- INCLUDING THE CITIES OF...KEMMERER...COKEVILLE 649 PM MST SAT FEB 19 2011 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 5 AM MST SUNDAY... A WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 5 AM MST SUNDAY. * SUMMARY AND TIMING...OCCASIONAL LIGHT TO MODERATE SNOW WILL CONTINUE THIS EVENING WITH LIGHTER SNOW AFTER MIDNIGHT. * SNOW ACCUMULATIONS...3 TO 5 INCHES OF SNOW ARE EXPECTED. * WIND AND VISIBILITY...VISIBILITY WILL BE LIMITED TO ONE-HALF MILE AT TIMES IN HEAVIER SNOW SHOWERS. * IMPACTS...MODERATE AT TIMES WILL CAUSE ROADS TO BECOME SNOW PACKED AND SLICK. VISIBILITY WILL BE REDUCED DURING PERIODS OF HEAVIER SNOW ACROSS HIGHWAYS IN SOUTHERN LINCOLN COUNTY. 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. && $$ WYZ024-201000- /O.CON.KRIW.WW.Y.0010.000000T0000Z-110220T1200Z/ SALT RIVER AND WYOMING RANGES- 649 PM MST SAT FEB 19 2011 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 5 AM MST SUNDAY... A WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 5 AM MST SUNDAY. * SUMMARY AND TIMING...OCCASIONAL MODERATE TO HEAVY SNOWFALL WILL CONTINUE THIS EVENING WITH LIGHTER SNOW AFTER MIDNIGHT. * SNOW ACCUMULATIONS...5 TO 10 INCHES OF SNOW ARE EXPECTED. * WIND AND VISIBILITY...VISIBILITY WILL BE REDUCED TO BELOW A QUARTER MILE AT TIMES IN HEAVIER SNOW SHOWERS. * IMPACTS...MODERATE TO HEAVY SNOW AT TIMES WILL CAUSE ROADS TO BECOME SNOW PACKED AND SLICK. VISIBILITY WILL BE SIGNIFICANTLY REDUCED DURING PERIODS OF HEAVIER SNOW. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER WEATHER ADVISORY MEANS THAT PERIODS OF SNOW AND BLOWING SNOW WILL CAUSE TRAVEL DIFFICULTIES. BE PREPARED FOR SLIPPERY ROADS AND LIMITED VISIBILITIES...AND USE CAUTION WHILE DRIVING. && $$ WYZ012-201000- /O.CON.KRIW.WW.Y.0010.000000T0000Z-110220T1200Z/ TETON AND GROS VENTRE MOUNTAINS- 649 PM MST SAT FEB 19 2011 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 5 AM MST SUNDAY... A WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 5 AM MST SUNDAY. * SUMMARY AND TIMING...OCCASIONAL LIGHT TO MODERATE SNOW WILL CONTINUE THIS EVENING WITH LIGHTER SNOW AFTER MIDNIGHT. * SNOW ACCUMULATIONS...5 TO 10 INCHES OF SNOW ARE EXPECTED. * WIND AND VISIBILITY...NORTHEAST AT 15 TO 25 MPH WITH VISIBILITY BELOW A QUARTER MILE AT TIMES IN BLOWING SNOW. * IMPACTS...MODERATE SNOW AT TIMES WILL RESULT IN SLICK AND SNOW PACKED ROADS. VISIBILITY WILL BE SIGNIFICANTLY REDUCED DURING PERIODS OF HEAVIER SNOW OVER TETON AND TOGWOTEE PASSES. 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. && $$ WYZ003-201000- /O.CON.KRIW.WW.Y.0010.000000T0000Z-110220T1900Z/ CODY FOOTHILLS- INCLUDING THE CITIES OF...CODY...MEETEETSE 649 PM MST SAT FEB 19 2011 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL NOON MST SUNDAY... A WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL NOON MST SUNDAY. * SUMMARY AND TIMING...SNOW WILL INCREASE THIS EVENING. THE HEAVIEST SNOW IS EXPECTED TO FALL OVERNIGHT...WITH LIGHTER SNOW AFTER SUNRISE. * SNOW ACCUMULATIONS...2 TO 4 INCHES OF SNOW ARE EXPECTED. * WIND AND VISIBILITY...NORTH 15 TO 25 MPH WITH VISIBILITY BELOW A QUARTER MILE AT TIMES IN BLOWING SNOW. * IMPACTS...MODERATE TO HEAVY SNOW AT TIMES WILL CAUSE ROADS TO BECOME SNOW PACKED AND SLICK. VISIBILITY WILL BE SIGNIFICANTLY REDUCED DURING PERIODS OF HEAVIER SNOW ACROSS THE HIGHWAYS OF PARK COUNTY. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER WEATHER ADVISORY MEANS THAT PERIODS OF SNOW AND BLOWING SNOW WILL CAUSE TRAVEL DIFFICULTIES. BE PREPARED FOR SLIPPERY ROADS AND LIMITED VISIBILITIES...AND USE CAUTION WHILE DRIVING. && $$ AEM
363 WWUS45 KRIW 200855 WSWRIW URGENT - WINTER WEATHER MESSAGE NATIONAL WEATHER SERVICE RIVERTON WY 155 AM MST SUN FEB 20 2011 ...A WINTER STORM WILL BRING SNOW AND WIND TO MUCH OF SOUTHWEST AND CENTRAL WYOMING TONIGHT THROUGH THIS MORNING... .A LOW PRESSURE SYSTEM WILL INTENSIFY ACROSS NORTHEAST COLORADO EARLY THIS MORNING AND SLOWLY DRIFT EAST INTO NEBRASKA LATER TODAY. PACIFIC MOISTURE PUSHING NORTHWARD FROM UTAH AND COLORADO WILL INTERACT WITH AN ARCTIC FRONT OVER CENTRAL WYOMING TO PRODUCE WIDESPREAD SNOWFALL...HEAVY AT TIMES THROUGH MID DAY TODAY. ALONG WITH THE SNOW AREAS OF NORTHEAST WINDS WILL CAUSE SOME BLOWING AND DRIFTING SNOW. THE SNOWFALL IS EXPECTED TO TAPER OFF BY NOON TODAY AS THE LOW PRESSURE SYSTEM DRIFTS EAST INTO THE PLAINS. WYZ020-022-201300- /O.CAN.KRIW.WS.W.0004.000000T0000Z-110220T1900Z/ /O.EXA.KRIW.WW.Y.0010.000000T0000Z-110220T1900Z/ NATRONA COUNTY LOWER ELEVATIONS-CASPER MOUNTAIN- INCLUDING THE CITY OF...CASPER 155 AM MST SUN FEB 20 2011 ...WINTER WEATHER ADVISORY IN EFFECT UNTIL NOON MST TODAY... ...WINTER STORM WARNING IS CANCELLED... THE NATIONAL WEATHER SERVICE IN RIVERTON HAS ISSUED A WINTER WEATHER ADVISORY FOR SNOWFALL...WHICH IS IN EFFECT UNTIL NOON MST TODAY. THE WINTER STORM WARNING HAS BEEN CANCELLED. * SUMMARY AND TIMING...OCCASIONAL MODERATE SNOW WILL CONTINUE TO PUSH NORTH ACROSS THE AREA THIS MORNING...GRADUALLY TAPERING OFF AROUND NOON TODAY. * SNOW ACCUMULATIONS...3 TO 6 INCHES OF SNOW ARE EXPECTED. * WIND AND VISIBILITY...VISIBILITY WILL FALL BELOW ONE-HALF MILE AT TIMES IN HEAVIER SNOWFALL. NORTHEAST WINDS OF 15 TO 25 MPH WILL CAUSE SOME BLOWING SNOW THIS MORNING. * IMPACTS...MODERATE SNOW AT TIMES WILL CAUSE ROADS TO BECOME SNOW PACKED AND SLICK. VISIBILITY WILL BE SIGNIFICANTLY REDUCED DURING PERIODS OF HEAVIER SNOW AND BLOWING SNOW ALONG INTERSTATE 25 AND OTHER HIGHWAYS IN NATRONA COUNTY. 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. && $$ WYZ019-201300- /O.CAN.KRIW.WS.W.0004.000000T0000Z-110220T1900Z/ /O.EXA.KRIW.WW.Y.0010.000000T0000Z-110220T1900Z/ GREEN MOUNTAINS AND RATTLESNAKE RANGE- INCLUDING THE CITY OF...JEFFREY CITY 155 AM MST SUN FEB 20 2011 ...WINTER WEATHER ADVISORY IN EFFECT UNTIL NOON MST TODAY... ...WINTER STORM WARNING IS CANCELLED... THE NATIONAL WEATHER SERVICE IN RIVERTON HAS ISSUED A WINTER WEATHER ADVISORY FOR SNOW AND BLOWING SNOW...WHICH IS IN EFFECT UNTIL NOON MST TODAY. THE WINTER STORM WARNING HAS BEEN CANCELLED. * SUMMARY AND TIMING...OCCASIONAL MODERATE SNOW WILL CONTINUE TO PUSH NORTH ACROSS THE AREA THIS MORNING...GRADUALLY TAPERING OFF AROUND NOON TODAY. * SNOW ACCUMULATIONS...3 TO 6 INCHES OF SNOW ARE EXPECTED. * WIND AND VISIBILITY...VISIBILITY WILL FALL BELOW ONE-HALF MILE AT TIMES IN HEAVIER SNOWFALL. * IMPACTS...MODERATE SNOW AT TIMES WILL CAUSE ROADS TO BECOME SNOW PACKED AND SLICK. VISIBILITY WILL BE SIGNIFICANTLY REDUCED DURING PERIODS OF HEAVIER SNOW AND BLOWING SNOW ALONG HIGHWAYS 220...287 AND 789. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER WEATHER ADVISORY MEANS THAT PERIODS OF SNOW AND BLOWING SNOW WILL CAUSE TRAVEL DIFFICULTIES. BE PREPARED FOR SLIPPERY ROADS AND LIMITED VISIBILITIES...AND USE CAUTION WHILE DRIVING. && $$ WYZ017-201300- /O.CAN.KRIW.WS.W.0004.000000T0000Z-110220T1900Z/ /O.EXA.KRIW.WW.Y.0010.000000T0000Z-110220T1900Z/ WIND RIVER BASIN- INCLUDING THE CITIES OF...RIVERTON...SHOSHONI 155 AM MST SUN FEB 20 2011 ...WINTER WEATHER ADVISORY IN EFFECT UNTIL NOON MST TODAY... ...WINTER STORM WARNING IS CANCELLED... THE NATIONAL WEATHER SERVICE IN RIVERTON HAS ISSUED A WINTER WEATHER ADVISORY FOR SNOW AND BLOWING SNOW...WHICH IS IN EFFECT UNTIL NOON MST TODAY. THE WINTER STORM WARNING HAS BEEN CANCELLED. * SUMMARY AND TIMING...OCCASIONAL MODERATE SNOW WILL CONTINUE TO PUSH NORTH ACROSS THE AREA THIS MORNING...GRADUALLY TAPERING OFF AROUND NOON TODAY. * SNOW ACCUMULATIONS...2 TO 5 INCHES OF SNOW ARE EXPECTED. * WIND AND VISIBILITY...VISIBILITY WILL FALL BELOW ONE-HALF MILE AT TIMES IN HEAVIER SNOWFALL. NORTHEAST WINDS OF 15 TO 25 MPH WILL CAUSE SOME BLOWING SNOW THIS MORNING. * IMPACTS...MODERATE SNOW AT TIMES WILL CAUSE ROADS TO BECOME SNOW PACKED AND SLICK. VISIBILITY WILL BE SIGNIFICANTLY REDUCED DURING PERIODS OF HEAVIER SNOW AND BLOWING SNOW ALONG HIGHWAYS 20...26 AND 789. 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. && $$ WYZ018-201300- /O.CAN.KRIW.WS.W.0004.000000T0000Z-110220T1900Z/ /O.EXA.KRIW.WW.Y.0010.000000T0000Z-110220T1900Z/ LANDER FOOTHILLS- INCLUDING THE CITY OF...LANDER 155 AM MST SUN FEB 20 2011 ...WINTER WEATHER ADVISORY IN EFFECT UNTIL NOON MST TODAY... ...WINTER STORM WARNING IS CANCELLED... THE NATIONAL WEATHER SERVICE IN RIVERTON HAS ISSUED A WINTER WEATHER ADVISORY FOR SNOW AND BLOWING SNOW...WHICH IS IN EFFECT UNTIL NOON MST TODAY. THE WINTER STORM WARNING HAS BEEN CANCELLED. * SUMMARY AND TIMING...OCCASIONAL MODERATE SNOW WILL CONTINUE TO PUSH NORTH ACROSS THE AREA THIS MORNING...AND WILL GRADUALLY TAPER OFF THROUGH NOON TODAY. * SNOW ACCUMULATIONS...3 TO 6 INCHES OF SNOW ARE EXPECTED. * WIND AND VISIBILITY...VISIBILITY WILL FALL BELOW ONE-HALF MILE AT TIMES IN HEAVIER SNOWFALL...NORTHEAST WINDS OF 15 TO 25 MPH WILL CAUSE SOME BLOWING SNOW THIS MORNING. * IMPACTS...MODERATE SNOW AT TIMES WILL CAUSE ROADS TO BECOME SNOW PACKED AND SLICK. VISIBILITY WILL BE SIGNIFICANTLY REDUCED DURING PERIODS OF HEAVIER SNOW AND BLOWING SNOW ALONG HIGHWAYS 287 AND 789. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER WEATHER ADVISORY MEANS THAT PERIODS OF SNOW AND BLOWING SNOW WILL CAUSE TRAVEL DIFFICULTIES. BE PREPARED FOR SLIPPERY ROADS AND LIMITED VISIBILITIES...AND USE CAUTION WHILE DRIVING. && $$ WYZ014-015-201300- /O.CAN.KRIW.WS.W.0004.000000T0000Z-110220T1900Z/ /O.EXA.KRIW.WW.Y.0010.000000T0000Z-110220T1900Z/ WIND RIVER MOUNTAINS WEST-WIND RIVER MOUNTAINS EAST- 155 AM MST SUN FEB 20 2011 ...WINTER WEATHER ADVISORY IN EFFECT UNTIL NOON MST TODAY... ...WINTER STORM WARNING IS CANCELLED... THE NATIONAL WEATHER SERVICE IN RIVERTON HAS ISSUED A WINTER WEATHER ADVISORY FOR SNOW AND BLOWING SNOW...WHICH IS IN EFFECT UNTIL NOON MST TODAY. THE WINTER STORM WARNING HAS BEEN CANCELLED. * SUMMARY AND TIMING...OCCASIONAL MODERATE SNOW WILL CONTINUE TO PUSH NORTH ACROSS THE AREA THIS MORNING WITH SNOWFALL GRADUALLY TAPERING OFF THROUGH NOON TODAY. * SNOW ACCUMULATIONS...5 TO 10 INCHES OF SNOW ARE EXPECTED. * WIND AND VISIBILITY...VISIBILITY WILL FALL BELOW ONE-HALF MILE AT TIMES IN HEAVIER SNOWFALL. NORTHEAST WINDS OF 15 TO 25 MPH WITH HIGHER GUSTS WILL CAUSE SOME BLOWING SNOW THIS MORNING. * IMPACTS...MODERATE TO HEAVY SNOW AT TIMES WILL CAUSE ROADS TO BECOME SNOW PACKED AND SLICK. VISIBILITY WILL BE SIGNIFICANTLY REDUCED DURING PERIODS OF HEAVIER SNOW AND BLOWING SNOW OVER SOUTH PASS. 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. && $$ WYZ005-007-201300- /O.CAN.KRIW.WS.W.0004.000000T0000Z-110220T1900Z/ /O.EXA.KRIW.WW.Y.0010.000000T0000Z-110220T1900Z/ SOUTHWEST BIG HORN BASIN-OWL CREEK AND BRIDGER MOUNTAINS- INCLUDING THE CITY OF...THERMOPOLIS 155 AM MST SUN FEB 20 2011 ...WINTER WEATHER ADVISORY IN EFFECT UNTIL NOON MST TODAY... ...WINTER STORM WARNING IS CANCELLED... THE NATIONAL WEATHER SERVICE IN RIVERTON HAS ISSUED A WINTER WEATHER ADVISORY FOR SNOW AND BLOWING SNOW...WHICH IS IN EFFECT UNTIL NOON MST TODAY. THE WINTER STORM WARNING HAS BEEN CANCELLED. * SUMMARY AND TIMING...OCCASIONAL MODERATE SNOW WILL CONTINUE TO PUSH NORTH ACROSS THE AREA THIS MORNING...WITH THE SNOWFALL GRADUALLY TAPERING OFF THROUGH NOON TODAY. * SNOW ACCUMULATIONS...2 TO 4 INCHES OF SNOW ARE EXPECTED. * WIND AND VISIBILITY...VISIBILITY WILL FALL BELOW ONE-HALF MILE AT TIMES IN HEAVIER SNOWFALL. NORTH WINDS OF 15 TO 25 MPH WILL CAUSE SOME BLOWING SNOW THIS MORNING. * IMPACTS...MODERATE SNOW AT TIMES WILL CAUSE ROADS TO BECOME SNOW PACKED AND SLICK. VISIBILITY WILL BE SIGNIFICANTLY REDUCED DURING PERIODS OF HEAVIER SNOW AND BLOWING SNOW ALONG INTERSTATE HIGHWAYS 20...120 AND 789. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER WEATHER ADVISORY MEANS THAT PERIODS OF SNOW AND BLOWING SNOW WILL CAUSE TRAVEL DIFFICULTIES. BE PREPARED FOR SLIPPERY ROADS AND LIMITED VISIBILITIES...AND USE CAUTION WHILE DRIVING. && $$ WYZ010-011-201300- /O.CON.KRIW.WS.W.0004.000000T0000Z-110220T1900Z/ NORTHEAST JOHNSON COUNTY-SOUTHEAST JOHNSON COUNTY- INCLUDING THE CITIES OF...BUFFALO...KAYCEE 155 AM MST SUN FEB 20 2011 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL NOON MST TODAY... A WINTER STORM WARNING REMAINS IN EFFECT UNTIL NOON MST TODAY. * SUMMARY AND TIMING...SNOW...HEAVY AT TIMES...WILL CONTINUE THIS MORNING. ALONG WITH THE SNOW...AREAS OF BRISK NORTH WIND WILL CAUSE BLOWING AND DRIFTING SNOW. THE SNOWFALL IS EXPECTED TO TAPER OFF BY NOON TODAY. * SNOW ACCUMULATIONS...5 TO 10 INCHES ARE EXPECTED. * WIND AND VISIBILITY...NORTH WIND OF 20 TO 30 MPH IS EXPECTED TO CAUSE BLOWING AND DRIFTING SNOW WITH VISIBILITY BELOW A QUARTER MILE. * IMPACTS...ROADS AND HIGHWAYS HAVE BECOME SLICK AND SNOW- COVERED ACROSS JOHNSON COUNTY THIS MORNING...MAKING TRAVEL DIFFICULT. ADDITIONAL SNOWFALL ALONG WITH LIMITED VISIBILITY IN BLOWING AND DRIFTING SNOW... WITH NEAR WHITE OUT CONDITIONS ARE EXPECTED AT TIMES ALONG INTERSTATES 90 AND 25. 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. && $$ WYZ025-026-201200- /O.CON.KRIW.WW.Y.0010.000000T0000Z-110220T1200Z/ UPPER GREEN RIVER BASIN FOOTHILLS-UPPER GREEN RIVER BASIN- INCLUDING THE CITIES OF...PINEDALE...LA BARGE...BIG PINEY... FARSON 155 AM MST SUN FEB 20 2011 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 5 AM MST EARLY THIS MORNING... A WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 5 AM MST EARLY THIS MORNING. * SUMMARY AND TIMING...SNOW WILL CONTINUE EARLY THIS MORNING...GRADUALLY TAPERING OFF AROUND DAWN. * SNOW ACCUMULATIONS...3 TO 6 INCHES OF SNOW ARE EXPECTED. * WIND AND VISIBILITY...VISIBILITY WILL FALL BELOW ONE HALF MILE AT TIMES IN HEAVIER SNOWFALL. * IMPACTS...MODERATE TO HEAVY SNOW AT TIMES WILL CAUSE ROADS TO BECOME SNOW PACKED AND SLICK. VISIBILITY WILL BE SIGNIFICANTLY REDUCED DURING PERIODS OF HEAVIER SNOW. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER WEATHER ADVISORY MEANS THAT PERIODS OF SNOW AND BLOWING SNOW WILL CAUSE TRAVEL DIFFICULTIES. BE PREPARED FOR SLIPPERY ROADS AND LIMITED VISIBILITIES...AND USE CAUTION WHILE DRIVING. && $$ WYZ028>030-201300- /O.CON.KRIW.WW.Y.0010.000000T0000Z-110220T1900Z/ ROCK SPRINGS AND GREEN RIVER-FLAMING GORGE-EAST SWEETWATER COUNTY- INCLUDING THE CITIES OF...ROCK SPRINGS...GREEN RIVER...WAMSUTTER 155 AM MST SUN FEB 20 2011 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL NOON MST TODAY... A WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL NOON MST TODAY. * SUMMARY AND TIMING...OCCASIONAL MODERATE SNOW WILL CONTINUE TO PUSH NORTH ACROSS THE AREA THIS MORNING WITH SNOWFALL GRADUALLY TAPERING OFF THROUGH NOON TODAY. * SNOW ACCUMULATIONS...3 TO 6 INCHES OF SNOW ARE EXPECTED. * WIND AND VISIBILITY...VISIBILITY WILL FALL BELOW ONE-HALF MILE AT TIMES IN HEAVIER SNOWFALL. WEST WINDS OF 20 TO 30 MPH WITH HIGHER GUSTS WILL CAUSE BLOWING AND DRIFTING SNOW. * IMPACTS...MODERATE SNOW AT TIMES WILL CAUSE ROADS TO BECOME SNOW PACKED AND SLICK. VISIBILITY WILL BE SIGNIFICANTLY REDUCED DURING PERIODS OF HEAVIER SNOW AND BLOWING SNOW ALONG INTERSTATE 80 AND OTHER HIGHWAYS IN SWEETWATER COUNTY. 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. && $$ WYZ004-006-201300- /O.CON.KRIW.WW.Y.0010.000000T0000Z-110220T1900Z/ NORTH BIG HORN BASIN-SOUTHEAST BIG HORN BASIN- INCLUDING THE CITIES OF...POWELL...LOVELL...GREYBULL...BASIN... WORLAND 155 AM MST SUN FEB 20 2011 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL NOON MST TODAY... A WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL NOON MST TODAY. * SUMMARY AND TIMING...SNOWFALL WILL CONTINUE THIS MORNING TAPERING OFF LATER THIS MORNING. * SNOW ACCUMULATIONS...2 TO 4 INCHES OF SNOW ARE EXPECTED. * WIND AND VISIBILITY...NORTH 20 TO 25 MPH WITH VISIBILITY BELOW A QUARTER MILE AT TIMES IN BLOWING SNOW. * IMPACTS...MODERATE SNOW AT TIMES WILL CAUSE ROADS TO BECOME SNOW PACKED AND SLICK. VISIBILITY WILL BE SIGNIFICANTLY REDUCED DURING PERIODS OF HEAVIER SNOW ACROSS HIGHWAYS IN THE BIG HORN BASIN. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER WEATHER ADVISORY MEANS THAT PERIODS OF SNOW AND BLOWING SNOW WILL CAUSE TRAVEL DIFFICULTIES. BE PREPARED FOR SLIPPERY ROADS AND LIMITED VISIBILITIES...AND USE CAUTION WHILE DRIVING. && $$ WYZ008-009-201300- /O.CON.KRIW.WW.Y.0010.000000T0000Z-110220T1900Z/ BIGHORN MOUNTAINS WEST-BIGHORN MOUNTAINS SOUTHEAST- 155 AM MST SUN FEB 20 2011 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL NOON MST TODAY... A WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL NOON MST TODAY. * SUMMARY AND TIMING...SNOW WILL INCREASE ACROSS THE BIG HORN MOUNTAINS EVENING...BECOMING MODERATE TO HEAVY AT TIMES OVERNIGHT. THE HEAVIEST SNOW IS EXPECTED TO FALL OVERNIGHT... WITH LIGHTER SNOW AFTER SUNRISE. * SNOW ACCUMULATIONS...5 TO 10 INCHES OF SNOW ARE EXPECTED. * WIND AND VISIBILITY...NORTHEAST AT 20 TO 25 MPH WITH VISIBILITY BELOW A QUARTER MILE AT TIMES IN BLOWING SNOW. * IMPACTS...MODERATE TO HEAVY SNOW AT TIMES WILL CAUSE ROADS TO BECOME SNOW PACKED AND SLICK. VISIBILITY WILL BE SIGNIFICANTLY REDUCED DURING PERIODS OF HEAVIER SNOW OVER POWDER RIVER PASS. 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. && $$ WYZ027-201200- /O.CON.KRIW.WW.Y.0010.000000T0000Z-110220T1200Z/ SOUTH LINCOLN COUNTY- INCLUDING THE CITIES OF...KEMMERER...COKEVILLE 155 AM MST SUN FEB 20 2011 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 5 AM MST EARLY THIS MORNING... A WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 5 AM MST EARLY THIS MORNING. * SUMMARY AND TIMING...SNOW WILL CONTINUE EARLY THIS MORNING...GRADUALLY TAPERING OFF AROUND DAWN. * SNOW ACCUMULATIONS...3 TO 5 INCHES OF SNOW ARE EXPECTED. * WIND AND VISIBILITY...VISIBILITY WILL BE LIMITED TO ONE-HALF MILE AT TIMES IN HEAVIER SNOW SHOWERS. * IMPACTS...MODERATE AT TIMES WILL CAUSE ROADS TO BECOME SNOW PACKED AND SLICK. VISIBILITY WILL BE REDUCED DURING PERIODS OF HEAVIER SNOW ACROSS HIGHWAYS IN SOUTHERN LINCOLN COUNTY. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER WEATHER ADVISORY MEANS THAT PERIODS OF SNOW AND BLOWING SNOW WILL CAUSE TRAVEL DIFFICULTIES. BE PREPARED FOR SLIPPERY ROADS AND LIMITED VISIBILITIES...AND USE CAUTION WHILE DRIVING. && $$ WYZ024-201200- /O.CON.KRIW.WW.Y.0010.000000T0000Z-110220T1200Z/ SALT RIVER AND WYOMING RANGES- 155 AM MST SUN FEB 20 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 CONTINUE EARLY THIS MORNING...GRADUALLY TAPERING TO SNOW SHOWERS AROUND SUNRISE. * SNOW ACCUMULATIONS...5 TO 10 INCHES OF SNOW ARE EXPECTED. * WIND AND VISIBILITY...VISIBILITY WILL BE REDUCED TO BELOW A QUARTER MILE AT TIMES IN HEAVIER SNOW SHOWERS. * IMPACTS...MODERATE TO HEAVY SNOW AT TIMES WILL CAUSE ROADS TO BECOME SNOW PACKED AND SLICK. VISIBILITY WILL BE SIGNIFICANTLY REDUCED DURING PERIODS OF HEAVIER 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. && $$ WYZ012-201200- /O.CON.KRIW.WW.Y.0010.000000T0000Z-110220T1200Z/ TETON AND GROS VENTRE MOUNTAINS- 155 AM MST SUN FEB 20 2011 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 5 AM MST EARLY THIS MORNING... A WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 5 AM MST EARLY THIS MORNING. * SUMMARY AND TIMING...SNOW WILL CONTINUE EARLY THIS MORNING...GRADUALLY TAPERING TO SNOW SHOWERS AROUND SUNRISE. * SNOW ACCUMULATIONS...5 TO 10 INCHES OF SNOW ARE EXPECTED. * WIND AND VISIBILITY...NORTHEAST AT 15 TO 25 MPH WITH VISIBILITY BELOW A QUARTER MILE AT TIMES IN BLOWING SNOW. * IMPACTS...MODERATE SNOW AT TIMES WILL RESULT IN SLICK AND SNOW PACKED ROADS. VISIBILITY WILL BE SIGNIFICANTLY REDUCED DURING PERIODS OF HEAVIER SNOW OVER TETON AND TOGWOTEE PASSES. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER WEATHER ADVISORY MEANS THAT PERIODS OF SNOW AND BLOWING SNOW WILL CAUSE TRAVEL DIFFICULTIES. BE PREPARED FOR SLIPPERY ROADS AND LIMITED VISIBILITIES...AND USE CAUTION WHILE DRIVING. && $$ WYZ003-201300- /O.CON.KRIW.WW.Y.0010.000000T0000Z-110220T1900Z/ CODY FOOTHILLS- INCLUDING THE CITIES OF...CODY...MEETEETSE 155 AM MST SUN FEB 20 2011 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL NOON MST TODAY... A WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL NOON MST TODAY. * SUMMARY AND TIMING...SNOWFALL WILL CONTINUE THIS MORNING TAPERING OFF LATER THIS MORNING. * SNOW ACCUMULATIONS...2 TO 4 INCHES OF SNOW ARE EXPECTED. * WIND AND VISIBILITY...NORTH 15 TO 25 MPH WITH VISIBILITY BELOW A QUARTER MILE AT TIMES IN BLOWING SNOW. * IMPACTS...MODERATE TO HEAVY SNOW AT TIMES WILL CAUSE ROADS TO BECOME SNOW PACKED AND SLICK. VISIBILITY WILL BE SIGNIFICANTLY REDUCED DURING PERIODS OF HEAVIER SNOW ACROSS THE HIGHWAYS OF PARK COUNTY. 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. && $$
496 WWUS45 KRIW 201201 WSWRIW URGENT - WINTER WEATHER MESSAGE NATIONAL WEATHER SERVICE RIVERTON WY 501 AM MST SUN FEB 20 2011 ...A WINTER STORM WILL CONTINUE TO BRING SNOW AND WIND TO MUCH OF CENTRAL WYOMING THIS MORNING... .A LOW PRESSURE SYSTEM WILL INTENSIFY ACROSS NORTHEAST COLORADO THIS MORNING AND SLOWLY DRIFT EAST INTO NEBRASKA LATER TODAY. PACIFIC MOISTURE PUSHING NORTHWARD FROM UTAH AND COLORADO WILL INTERACT WITH AN ARCTIC FRONT OVER CENTRAL WYOMING TO PRODUCE WIDESPREAD SNOWFALL...HEAVY AT TIMES THROUGH MIDDAY TODAY. ALONG WITH THE SNOW...AREAS OF NORTHEAST WINDS WILL CAUSE SOME BLOWING AND DRIFTING SNOW. THE SNOWFALL IS EXPECTED TO TAPER OFF BY AROUND NOON TODAY AS THE LOW PRESSURE SYSTEM DRIFTS EAST INTO THE PLAINS. WYZ025-026-201315- /O.EXP.KRIW.WW.Y.0010.000000T0000Z-110220T1200Z/ UPPER GREEN RIVER BASIN FOOTHILLS-UPPER GREEN RIVER BASIN- INCLUDING THE CITIES OF...PINEDALE...LA BARGE...BIG PINEY... FARSON 501 AM MST SUN FEB 20 2011 ...WINTER WEATHER ADVISORY WILL EXPIRE AT 5 AM MST EARLY THIS MORNING... THE WINTER WEATHER ADVISORY WILL EXPIRE AT 5 AM MST EARLY THIS MORNING. THE HEAVIEST SNOW HAS SHIFTED EAST...WITH ONLY PERIODS OF LIGHT SNOW EXPECTED TODAY. ADDITIONAL SNOWFALL ACCUMULATION IS EXPECTED TO BE LESS THAN AN INCH. $$ WYZ027-201315- /O.EXP.KRIW.WW.Y.0010.000000T0000Z-110220T1200Z/ SOUTH LINCOLN COUNTY- INCLUDING THE CITIES OF...KEMMERER...COKEVILLE 501 AM MST SUN FEB 20 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. THE HEAVIEST SNOW HAS SHIFTED EAST...WITH ONLY PERIODS OF LIGHT SNOW EXPECTED TODAY. ADDITIONAL SNOWFALL ACCUMULATION IS EXPECTED TO BE LESS THAN AN INCH. IN ADDITION...BRISK WESTERLY WINDS WILL RESULT IN BLOWING AND DRIFTING OF SNOW. $$ WYZ024-201315- /O.EXP.KRIW.WW.Y.0010.000000T0000Z-110220T1200Z/ SALT RIVER AND WYOMING RANGES- 501 AM MST SUN FEB 20 2011 ...WINTER WEATHER ADVISORY WILL EXPIRE AT 5 AM MST EARLY THIS MORNING... THE WINTER WEATHER ADVISORY WILL EXPIRE AT 5 AM MST EARLY THIS MORNING. THE HEAVIEST SNOW HAS SHIFTED EAST...WITH ONLY PERIODS OF LIGHT SNOW EXPECTED TODAY. ADDITIONAL SNOWFALL ACCUMULATION IS EXPECTED TO BE LIGHT. $$ WYZ012-201315- /O.EXP.KRIW.WW.Y.0010.000000T0000Z-110220T1200Z/ TETON AND GROS VENTRE MOUNTAINS- 501 AM MST SUN FEB 20 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. THE HEAVIEST SNOW HAS SHIFTED EAST...WITH ONLY PERIODS OF LIGHT SNOW EXPECTED TODAY. ADDITIONAL SNOWFALL ACCUMULATION IS EXPECTED TO BE LIGHT. $$ WYZ010-011-201900- /O.CON.KRIW.WS.W.0004.000000T0000Z-110220T1900Z/ NORTHEAST JOHNSON COUNTY-SOUTHEAST JOHNSON COUNTY- INCLUDING THE CITIES OF...BUFFALO...KAYCEE 501 AM MST SUN FEB 20 2011 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL NOON MST TODAY... A WINTER STORM WARNING REMAINS IN EFFECT UNTIL NOON MST TODAY. * SUMMARY AND TIMING...SNOW...HEAVY AT TIMES...WILL CONTINUE THIS MORNING. ALONG WITH THE SNOW...AREAS OF BRISK NORTH WIND WILL CAUSE BLOWING AND DRIFTING SNOW. THE SNOWFALL IS EXPECTED TO TAPER OFF BY NOON TODAY. * SNOW ACCUMULATIONS...5 TO 10 INCHES ARE EXPECTED. * WIND AND VISIBILITY...NORTH WIND OF 20 TO 30 MPH IS EXPECTED TO CAUSE BLOWING AND DRIFTING SNOW WITH VISIBILITY BELOW A QUARTER MILE. * IMPACTS...ROADS AND HIGHWAYS HAVE BECOME SLICK AND SNOW- COVERED ACROSS JOHNSON COUNTY THIS MORNING...MAKING TRAVEL DIFFICULT. ADDITIONAL SNOWFALL ALONG WITH LIMITED VISIBILITY IN BLOWING AND DRIFTING SNOW... WITH NEAR WHITE OUT CONDITIONS ARE EXPECTED AT TIMES ALONG INTERSTATES 90 AND 25. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER STORM WARNING FOR HEAVY SNOW MEANS SEVERE WINTER WEATHER CONDITIONS ARE EXPECTED OR OCCURRING. SIGNIFICANT AMOUNTS OF SNOW ARE FORECAST THAT WILL MAKE TRAVEL DANGEROUS. ONLY TRAVEL IN AN EMERGENCY. IF YOU MUST TRAVEL...KEEP AN EXTRA FLASHLIGHT... FOOD...AND WATER IN YOUR VEHICLE IN CASE OF AN EMERGENCY. && $$ WYZ028>030-201900- /O.CON.KRIW.WW.Y.0010.000000T0000Z-110220T1900Z/ ROCK SPRINGS AND GREEN RIVER-FLAMING GORGE-EAST SWEETWATER COUNTY- INCLUDING THE CITIES OF...ROCK SPRINGS...GREEN RIVER...WAMSUTTER 501 AM MST SUN FEB 20 2011 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL NOON MST TODAY... A WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL NOON MST TODAY. * SUMMARY AND TIMING...OCCASIONAL MODERATE SNOW WILL CONTINUE THIS MORNING WITH SNOWFALL GRADUALLY TAPERING OFF THROUGH NOON TODAY. * SNOW ACCUMULATIONS...3 TO 6 INCHES OF SNOW ARE EXPECTED. * WIND AND VISIBILITY...VISIBILITY WILL FALL BELOW ONE-QUARTER OF A MILE AT TIMES. WEST WINDS OF 20 TO 30 MPH WITH HIGHER GUSTS WILL CAUSE BLOWING AND DRIFTING SNOW. * IMPACTS...ROADS WILL BE SNOW PACKED AND SLICK. VISIBILITY WILL BE SIGNIFICANTLY REDUCED ALONG INTERSTATE 80 AND OTHER HIGHWAYS IN SWEETWATER COUNTY DURING PERIODS OF HEAVIER SNOW AND 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. && $$ WYZ004-006-201900- /O.CON.KRIW.WW.Y.0010.000000T0000Z-110220T1900Z/ NORTH BIG HORN BASIN-SOUTHEAST BIG HORN BASIN- INCLUDING THE CITIES OF...POWELL...LOVELL...GREYBULL...BASIN... WORLAND 501 AM MST SUN FEB 20 2011 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL NOON MST TODAY... A WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL NOON MST TODAY. * SUMMARY AND TIMING...SNOWFALL WILL CONTINUE THIS MORNING TAPERING OFF LATER THIS MORNING. * SNOW ACCUMULATIONS...2 TO 4 INCHES OF SNOW ARE EXPECTED. * WIND AND VISIBILITY...NORTH 20 TO 25 MPH WITH VISIBILITY BELOW A QUARTER MILE AT TIMES IN BLOWING SNOW. * IMPACTS...MODERATE SNOW AT TIMES WILL CAUSE ROADS TO BECOME SNOW PACKED AND SLICK. VISIBILITY WILL BE SIGNIFICANTLY REDUCED DURING PERIODS OF HEAVIER SNOW ACROSS HIGHWAYS IN THE BIG HORN BASIN. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER WEATHER ADVISORY MEANS THAT PERIODS OF SNOW AND BLOWING SNOW WILL CAUSE TRAVEL DIFFICULTIES. BE PREPARED FOR SLIPPERY ROADS AND LIMITED VISIBILITIES...AND USE CAUTION WHILE DRIVING. && $$ WYZ008-009-201900- /O.CON.KRIW.WW.Y.0010.000000T0000Z-110220T1900Z/ BIGHORN MOUNTAINS WEST-BIGHORN MOUNTAINS SOUTHEAST- 501 AM MST SUN FEB 20 2011 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL NOON MST TODAY... A WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL NOON MST TODAY. * SUMMARY AND TIMING...SNOW...HEAVY AT TIMES...WILL CONTINUE THIS MORNING. * SNOW ACCUMULATIONS...5 TO 10 INCHES OF SNOW ARE EXPECTED. * WIND AND VISIBILITY...NORTHEAST AT 20 TO 25 MPH WITH VISIBILITY BELOW A QUARTER MILE AT TIMES IN BLOWING SNOW. * IMPACTS...ROADS WILL BE SNOW PACKED AND SLICK. VISIBILITY WILL BE SIGNIFICANTLY REDUCED DURING PERIODS OF HEAVIER SNOW OVER POWDER RIVER PASS. 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. && $$ WYZ003-201900- /O.CON.KRIW.WW.Y.0010.000000T0000Z-110220T1900Z/ CODY FOOTHILLS- INCLUDING THE CITIES OF...CODY...MEETEETSE 501 AM MST SUN FEB 20 2011 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL NOON MST TODAY... A WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL NOON MST TODAY. * SUMMARY AND TIMING...SNOWFALL WILL CONTINUE THIS MORNING TAPERING OFF LATER THIS MORNING. * SNOW ACCUMULATIONS...2 TO 4 INCHES OF SNOW ARE EXPECTED. * WIND AND VISIBILITY...NORTH 10 TO 20 MPH WITH VISIBILITY BELOW A HALF A MILE AT TIMES IN BLOWING SNOW. * IMPACTS...MODERATE SNOW AT TIMES WILL CAUSE ROADS TO BECOME SNOW PACKED AND SLICK. VISIBILITY WILL BE SIGNIFICANTLY REDUCED DURING PERIODS OF HEAVIER SNOW ACROSS THE HIGHWAYS OF PARK COUNTY. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER WEATHER ADVISORY MEANS THAT PERIODS OF SNOW AND BLOWING SNOW WILL CAUSE TRAVEL DIFFICULTIES. BE PREPARED FOR SLIPPERY ROADS AND LIMITED VISIBILITIES...AND USE CAUTION WHILE DRIVING. && $$ WYZ020-022-201900- /O.CON.KRIW.WW.Y.0010.000000T0000Z-110220T1900Z/ NATRONA COUNTY LOWER ELEVATIONS-CASPER MOUNTAIN- INCLUDING THE CITY OF...CASPER 501 AM MST SUN FEB 20 2011 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL NOON MST TODAY... A WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL NOON MST TODAY. * SUMMARY AND TIMING...OCCASIONAL MODERATE SNOW WILL CONTINUE THIS MORNING...GRADUALLY TAPERING OFF AROUND NOON TODAY. * SNOW ACCUMULATIONS...3 TO 6 INCHES OF SNOW ARE EXPECTED. * WIND AND VISIBILITY...VISIBILITY WILL FALL BELOW ONE-HALF MILE AT TIMES IN HEAVIER SNOWFALL. NORTHEAST WINDS OF 15 TO 25 MPH WILL CAUSE SOME BLOWING SNOW THIS MORNING. * IMPACTS...ROADS WILL BE SNOW PACKED AND SLICK. VISIBILITY WILL BE SIGNIFICANTLY REDUCED DURING PERIODS OF HEAVIER SNOW AND BLOWING SNOW ALONG INTERSTATE 25 AND OTHER HIGHWAYS IN NATRONA COUNTY. 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. && $$ WYZ019-201900- /O.CON.KRIW.WW.Y.0010.000000T0000Z-110220T1900Z/ GREEN MOUNTAINS AND RATTLESNAKE RANGE- INCLUDING THE CITY OF...JEFFREY CITY 501 AM MST SUN FEB 20 2011 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL NOON MST TODAY... A WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL NOON MST TODAY. * SUMMARY AND TIMING...OCCASIONAL MODERATE SNOW WILL CONTINUE TO PUSH NORTH ACROSS THE AREA THIS MORNING...GRADUALLY TAPERING OFF AROUND NOON TODAY. * SNOW ACCUMULATIONS...3 TO 6 INCHES OF SNOW ARE EXPECTED. * WIND AND VISIBILITY...VISIBILITY WILL FALL BELOW ONE-HALF MILE AT TIMES IN HEAVIER SNOWFALL. * IMPACTS...ROADS WILL BE SNOW PACKED AND SLICK. VISIBILITY WILL BE SIGNIFICANTLY REDUCED DURING PERIODS OF HEAVIER SNOW AND BLOWING SNOW ALONG HIGHWAYS 220...287 AND 789. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER WEATHER ADVISORY MEANS THAT PERIODS OF SNOW AND BLOWING SNOW WILL CAUSE TRAVEL DIFFICULTIES. BE PREPARED FOR SLIPPERY ROADS AND LIMITED VISIBILITIES...AND USE CAUTION WHILE DRIVING. && $$ WYZ017-201900- /O.CON.KRIW.WW.Y.0010.000000T0000Z-110220T1900Z/ WIND RIVER BASIN- INCLUDING THE CITIES OF...RIVERTON...SHOSHONI 501 AM MST SUN FEB 20 2011 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL NOON MST TODAY... A WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL NOON MST TODAY. * SUMMARY AND TIMING...OCCASIONAL MODERATE SNOW WILL CONTINUE THIS MORNING...GRADUALLY TAPERING OFF AROUND NOON TODAY. * SNOW ACCUMULATIONS...2 TO 5 INCHES OF SNOW ARE EXPECTED. * WIND AND VISIBILITY...VISIBILITY WILL FALL BELOW ONE-HALF MILE AT TIMES IN HEAVIER SNOWFALL. NORTHEAST WINDS OF 15 TO 25 MPH WILL CAUSE SOME BLOWING SNOW THIS MORNING. * IMPACTS...ROADS WILL BE SNOW PACKED AND SLICK. VISIBILITY WILL BE SIGNIFICANTLY REDUCED DURING PERIODS OF HEAVIER SNOW AND BLOWING SNOW ALONG HIGHWAYS 20...26 AND 789. AS OF EARLY THIS MORNING...SOUTH PASS WAS CLOSED. PLEASE CALL 511...FOR THE LATEST INFORMATION ON CURRENT ROAD CONDITIONS. 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. && $$ WYZ018-201900- /O.CON.KRIW.WW.Y.0010.000000T0000Z-110220T1900Z/ LANDER FOOTHILLS- INCLUDING THE CITY OF...LANDER 501 AM MST SUN FEB 20 2011 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL NOON MST TODAY... A WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL NOON MST TODAY. * SUMMARY AND TIMING...OCCASIONAL MODERATE SNOW WILL CONTINUE THIS MORNING...AND WILL GRADUALLY TAPER OFF THROUGH NOON TODAY. * SNOW ACCUMULATIONS...3 TO 6 INCHES OF SNOW ARE EXPECTED. * WIND AND VISIBILITY...VISIBILITY WILL FALL BELOW ONE-HALF MILE AT TIMES IN HEAVIER SNOWFALL...NORTHEAST WINDS OF 15 TO 25 MPH WILL CAUSE SOME BLOWING SNOW THIS MORNING. * IMPACTS...ROADS WILL BE SNOW PACKED AND SLICK. VISIBILITY WILL BE SIGNIFICANTLY REDUCED DURING PERIODS OF HEAVIER SNOW AND BLOWING SNOW ALONG HIGHWAYS 287 AND 789. AS OF EARLY THIS MORNING...SOUTH PASS WAS CLOSED. PLEASE CALL 511...FOR THE LATEST INFORMATION ON CURRENT ROAD CONDITIONS. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER WEATHER ADVISORY MEANS THAT PERIODS OF SNOW AND BLOWING SNOW WILL CAUSE TRAVEL DIFFICULTIES. BE PREPARED FOR SLIPPERY ROADS AND LIMITED VISIBILITIES...AND USE CAUTION WHILE DRIVING. && $$ WYZ014-015-201900- /O.CON.KRIW.WW.Y.0010.000000T0000Z-110220T1900Z/ WIND RIVER MOUNTAINS WEST-WIND RIVER MOUNTAINS EAST- 501 AM MST SUN FEB 20 2011 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL NOON MST TODAY... A WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL NOON MST TODAY. * SUMMARY AND TIMING...OCCASIONAL MODERATE SNOW WILL CONTINUE THIS MORNING WITH SNOWFALL GRADUALLY TAPERING OFF TO FLURRIES BY AROUND NOON TODAY. * SNOW ACCUMULATIONS...6 TO 12 INCHES OF SNOW ARE EXPECTED. * WIND AND VISIBILITY...VISIBILITY WILL FALL BELOW ONE-HALF MILE AT TIMES IN HEAVIER SNOWFALL. NORTHEAST WINDS OF 15 TO 25 MPH WITH HIGHER GUSTS WILL CAUSE BLOWING SNOW THIS MORNING. * IMPACTS...ROADS WILL BE SNOW PACKED AND SLICK. VISIBILITY WILL BE SIGNIFICANTLY REDUCED DURING PERIODS OF HEAVIER SNOW AND BLOWING SNOW OVER SOUTH PASS. AS OF EARLY THIS MORNING...SOUTH PASS WAS CLOSED. PLEASE CALL 511...FOR THE LATEST INFORMATION ON CURRENT ROAD CONDITIONS. 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. && $$ WYZ005-007-201900- /O.CON.KRIW.WW.Y.0010.000000T0000Z-110220T1900Z/ SOUTHWEST BIG HORN BASIN-OWL CREEK AND BRIDGER MOUNTAINS- INCLUDING THE CITY OF...THERMOPOLIS 501 AM MST SUN FEB 20 2011 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL NOON MST TODAY... A WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL NOON MST TODAY. * SUMMARY AND TIMING...OCCASIONAL MODERATE SNOW WILL CONTINUE TO PUSH NORTH ACROSS THE AREA THIS MORNING...WITH THE SNOWFALL GRADUALLY TAPERING OFF THROUGH NOON TODAY. * SNOW ACCUMULATIONS...2 TO 4 INCHES OF SNOW ARE EXPECTED. * WIND AND VISIBILITY...VISIBILITY WILL FALL BELOW ONE-HALF MILE AT TIMES IN HEAVIER SNOWFALL. NORTH WINDS OF 10 TO 20 MPH WILL CAUSE SOME BLOWING SNOW THIS MORNING. * IMPACTS...ROADS WILL BE SNOW PACKED AND SLICK. VISIBILITY WILL BE SIGNIFICANTLY REDUCED DURING PERIODS OF HEAVIER SNOW AND BLOWING SNOW ALONG INTERSTATE HIGHWAYS 20...120 AND 789. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER WEATHER ADVISORY MEANS THAT PERIODS OF SNOW AND BLOWING SNOW WILL CAUSE TRAVEL DIFFICULTIES. BE PREPARED FOR SLIPPERY ROADS AND LIMITED VISIBILITIES...AND USE CAUTION WHILE DRIVING. && $$ 21
783 WWUS45 KRIW 201858 WSWRIW URGENT - WINTER WEATHER MESSAGE NATIONAL WEATHER SERVICE RIVERTON WY 1158 AM MST SUN FEB 20 2011 ...SNOW TAPERING OFF ACROSS WESTERN AND CENTRAL WYOMING... .THE SNOWFALL ACROSS WESTERN AND CENTRAL WYOMING WILL CONTINUE TO DECREASE THROUGH THE AFTERNOON AND EVENING. WYZ010-011-202000- /O.EXP.KRIW.WS.W.0004.000000T0000Z-110220T1900Z/ NORTHEAST JOHNSON COUNTY-SOUTHEAST JOHNSON COUNTY- INCLUDING THE CITIES OF...BUFFALO...KAYCEE 1158 AM MST SUN FEB 20 2011 ...WINTER STORM WARNING WILL EXPIRE AT NOON MST TODAY... THE WINTER STORM WARNING WILL EXPIRE AT NOON MST TODAY. THE SNOWFALL ACROSS WESTERN AND CENTRAL WYOMING WILL CONTINUE TO DECREASE THROUGH THE AFTERNOON AND EVENING. $$ WYZ028>030-202000- /O.EXP.KRIW.WW.Y.0010.000000T0000Z-110220T1900Z/ ROCK SPRINGS AND GREEN RIVER-FLAMING GORGE-EAST SWEETWATER COUNTY- INCLUDING THE CITIES OF...ROCK SPRINGS...GREEN RIVER...WAMSUTTER 1158 AM MST SUN FEB 20 2011 ...WINTER WEATHER ADVISORY WILL EXPIRE AT NOON MST TODAY... THE WINTER WEATHER ADVISORY WILL EXPIRE AT NOON MST TODAY. THE SNOWFALL ACROSS WESTERN AND CENTRAL WYOMING WILL CONTINUE TO DECREASE THROUGH THE AFTERNOON AND EVENING. $$ WYZ004-006-202000- /O.EXP.KRIW.WW.Y.0010.000000T0000Z-110220T1900Z/ NORTH BIG HORN BASIN-SOUTHEAST BIG HORN BASIN- INCLUDING THE CITIES OF...POWELL...LOVELL...GREYBULL...BASIN... WORLAND 1158 AM MST SUN FEB 20 2011 ...WINTER WEATHER ADVISORY WILL EXPIRE AT NOON MST TODAY... THE WINTER WEATHER ADVISORY WILL EXPIRE AT NOON MST TODAY. THE SNOWFALL ACROSS WESTERN AND CENTRAL WYOMING WILL CONTINUE TO DECREASE THROUGH THE AFTERNOON AND EVENING. $$ WYZ008-009-202000- /O.EXP.KRIW.WW.Y.0010.000000T0000Z-110220T1900Z/ BIGHORN MOUNTAINS WEST-BIGHORN MOUNTAINS SOUTHEAST- 1158 AM MST SUN FEB 20 2011 ...WINTER WEATHER ADVISORY WILL EXPIRE AT NOON MST TODAY... THE WINTER WEATHER ADVISORY WILL EXPIRE AT NOON MST TODAY. THE SNOWFALL ACROSS WESTERN AND CENTRAL WYOMING WILL CONTINUE TO DECREASE THROUGH THE AFTERNOON AND EVENING. $$ WYZ003-202000- /O.EXP.KRIW.WW.Y.0010.000000T0000Z-110220T1900Z/ CODY FOOTHILLS- INCLUDING THE CITIES OF...CODY...MEETEETSE 1158 AM MST SUN FEB 20 2011 ...WINTER WEATHER ADVISORY WILL EXPIRE AT NOON MST TODAY... THE WINTER WEATHER ADVISORY WILL EXPIRE AT NOON MST TODAY. THE SNOWFALL ACROSS WESTERN AND CENTRAL WYOMING WILL CONTINUE TO DECREASE THROUGH THE AFTERNOON AND EVENING. $$ WYZ020-022-202000- /O.EXP.KRIW.WW.Y.0010.000000T0000Z-110220T1900Z/ NATRONA COUNTY LOWER ELEVATIONS-CASPER MOUNTAIN- INCLUDING THE CITY OF...CASPER 1158 AM MST SUN FEB 20 2011 ...WINTER WEATHER ADVISORY WILL EXPIRE AT NOON MST TODAY... THE WINTER WEATHER ADVISORY WILL EXPIRE AT NOON MST TODAY. THE SNOWFALL ACROSS WESTERN AND CENTRAL WYOMING WILL CONTINUE TO DECREASE THROUGH THE AFTERNOON AND EVENING. $$ WYZ019-202000- /O.EXP.KRIW.WW.Y.0010.000000T0000Z-110220T1900Z/ GREEN MOUNTAINS AND RATTLESNAKE RANGE- INCLUDING THE CITY OF...JEFFREY CITY 1158 AM MST SUN FEB 20 2011 ...WINTER WEATHER ADVISORY WILL EXPIRE AT NOON MST TODAY... THE WINTER WEATHER ADVISORY WILL EXPIRE AT NOON MST TODAY. THE SNOWFALL ACROSS WESTERN AND CENTRAL WYOMING WILL CONTINUE TO DECREASE THROUGH THE AFTERNOON AND EVENING. $$ WYZ017-202000- /O.EXP.KRIW.WW.Y.0010.000000T0000Z-110220T1900Z/ WIND RIVER BASIN- INCLUDING THE CITIES OF...RIVERTON...SHOSHONI 1158 AM MST SUN FEB 20 2011 ...WINTER WEATHER ADVISORY WILL EXPIRE AT NOON MST TODAY... THE WINTER WEATHER ADVISORY WILL EXPIRE AT NOON MST TODAY. THE SNOWFALL ACROSS WESTERN AND CENTRAL WYOMING WILL CONTINUE TO DECREASE THROUGH THE AFTERNOON AND EVENING. $$ WYZ018-202000- /O.EXP.KRIW.WW.Y.0010.000000T0000Z-110220T1900Z/ LANDER FOOTHILLS- INCLUDING THE CITY OF...LANDER 1158 AM MST SUN FEB 20 2011 ...WINTER WEATHER ADVISORY WILL EXPIRE AT NOON MST TODAY... THE WINTER WEATHER ADVISORY WILL EXPIRE AT NOON MST TODAY. THE SNOWFALL ACROSS WESTERN AND CENTRAL WYOMING WILL CONTINUE TO DECREASE THROUGH THE AFTERNOON AND EVENING. $$ WYZ014-015-202000- /O.EXP.KRIW.WW.Y.0010.000000T0000Z-110220T1900Z/ WIND RIVER MOUNTAINS WEST-WIND RIVER MOUNTAINS EAST- 1158 AM MST SUN FEB 20 2011 ...WINTER WEATHER ADVISORY WILL EXPIRE AT NOON MST TODAY... THE WINTER WEATHER ADVISORY WILL EXPIRE AT NOON MST TODAY. $$ WYZ005-007-202000- /O.EXP.KRIW.WW.Y.0010.000000T0000Z-110220T1900Z/ SOUTHWEST BIG HORN BASIN-OWL CREEK AND BRIDGER MOUNTAINS- INCLUDING THE CITY OF...THERMOPOLIS 1158 AM MST SUN FEB 20 2011 ...WINTER WEATHER ADVISORY WILL EXPIRE AT NOON MST TODAY... THE WINTER WEATHER ADVISORY WILL EXPIRE AT NOON MST TODAY. THE SNOWFALL ACROSS WESTERN AND CENTRAL WYOMING WILL CONTINUE TO DECREASE THROUGH THE AFTERNOON AND EVENING. $$ C.BAKER
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 Feb 19, 2:50 AM MST, 7 hours 57 minutes earlier.
Area forecast discussion, Feb 19, 2:50 AM MST, 7 hours 57 minutes before
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE RIVERTON WY 250 AM MST SAT FEB 19 2011 .SHORT TERM...TODAY THROUGH MONDAY NIGHT AREAS OF FOG HAVE DEVELOPED IN JOHNSON COUNTY AS WINDS ARE LIGHT BEHIND A SLOW MOVING COLD FRONT DRAPED ACROSS NORTHERN WYOMING THIS MORNING. HIGH CLOUDS ARE BEGINNING TO MOVE INTO SOUTHWESTERN WYOMING AHEAD OF OUR NEXT STORM SYSTEM. PRESSURE RISES TO THE NORTH OF THE FRONT HAVE WEAKENED OVER THE LAST 12 HOURS...LEADING TO THE NEAR STALLING OF THE FRONT AND LIGHT WINDS TO THE NORTH. TWO DISTINCT SHORTWAVE TROUGHS ARE MOVING INTO THE INTERMOUNTAIN WEST FROM THE SOUTHWEST THIS MORNING. AS MID AND UPPER LEVEL FLOW BECOMES SOUTHERLY THIS TODAY...A FAVORABLE UPSLOPE REGIME WILL DEVELOP IN THE UPPER GREEN RIVER BASIN. HAVE ISSUED WINTER WEATHER ADVISORY FOR THIS AREA AS A RESULT. BEST DYNAMICS FOR MODERATE TO HEAVY SNOW DEVELOP ACROSS CENTRAL WYOMING TONIGHT. PRECIPITATION SHOULD BEGIN ANS RAIN IN SWEETWATER COUNTY AND POSSIBLY SOUTHERN NATRONA COUNTY BEFORE QUICKLY TRANSITIONING TO SNOW AS PRESSURE FALLS AHEAD OF THE APPROACHING STORM GET THE FRONT MOVING SOUTHWARD AGAIN. A FEW THUNDERSTORMS ARE NOT OUT OF THE QUESTION IN THESE AREAS. WARM LOW TO MID LEVEL ADVECTION FROM THE SOUTH WILL OVERRUN THE COLD FRONT TONIGHT...BRINGING MODERATE TO HEAVY SNOW AT TIMES TO THE WIND RIVER BASIN AND NATRONA COUNTY. 4 TO 8 INCHES OF SNOW ARE POSSIBLE IN THESE AREAS WITH UP TO A FOOT IN THE WIND RIVER RANGE AND FAVORED ADJACENT AREAS. THE BIGHORNS AND OWL CREEKS WILL LIKELY NEED ADVISORIES WITH JOHNSON AND NATRONA COUNTIES AS WELL AS THE WIND RIVER BASIN BEING GIVEN CONSIDERATION FOR WINTER STORM WARNINGS. THE BIG HORN BASIN SEEMS TO BE A MORE DIFFICULT DECISION AS COLDER AIR ENTRENCHED THERE MAY INHIBIT DENDRITIC GROWTH. SOUTHERN HOT SPRINGS COUNTY HOWEVER WILL SEE UPSLOPE ENHANCEMENT. THIS COULD BRING 4 TO 8 INCHES OF SNOW TO THE AREA WITH 2 TO 4 COMMON AROUND THE REST OF THE BASIN. WEST OF THE DIVIDE...PERSISTENT LIGHT SNOW CAN BE EXPECTED AS MOISTURE REMAINS IN PLACE. SUB ADVISORY AMOUNTS ARE EXPECTED IN MUCH OF THE HIGH TERRAIN BUT ADVISORIES MAY NEED TO BE CONSIDERED FOR JACKSON HOLE AND STAR VALLEY. LIGHT SNOW SHOULD CONTINUE THROUGH MONDAY IN THE WESTERN MOUNTAINS AS REMAINING MOISTURE COUPLES WITH A RETURN TO WESTERLY FLOW ALOFT. SIGNIFICANT ACCUMULATION IS NOT EXPECTED MONDAY. COOLER TEMPERATURES ARE IN STORE FOR SUNDAY AND MONDAY WITH HIGHS IN THE TEENS AND 20S IN THE BASINS AND LOWS IN THE SINGLE DIGITS ABOVE ZERO. .LONG TERM...TUESDAY THROUGH SATURDAY A TROUGH WILL BE DIGGING ACROSS THE PACIFIC NORTHWEST AND NORTHERN ROCKIES TUESDAY AND WEDNESDAY...WITH THE ASSOCIATED ARCTIC FRONT MOVING ACROSS THE AREA WEDNESDAY NIGHT AND THURSDAY. AS THIS TROUGH DIGS TUESDAY AND WEDNESDAY...PERIODS OF MAINLY LIGHT SNOW ARE EXPECTED WEST OF THE DIVIDE. AS THE COLD FRONT PUSHES SOUTH WEDNESDAY NIGHT/THURSDAY...CHANCES OF SNOW WILL SHIFT EAST OF THE DIVIDE...BUT ALSO REMAIN ACROSS THE WEST. MEDIUM RANGE MODELS DIFFER SIGNIFICANTLY ON HANDLING A SIGNIFICANT SHORTWAVE TROUGH DIVING SOUTH...ACROSS ALASKA/EXTREME WESTERN CANADA...ON THE BACKSIDE OF THE MEAN TROUGH. MEDIUM RANGE MODELS ARE PRETTY CLOSE WITH THIS SHORTWAVE TROUGH OFF THE PACIFIC NORTHWEST/SOUTH BRITISH COLUMBIA COAST WEDNESDAY. HOWEVER THE 00Z ECMWF AND GEM DEVELOP A CLOSED LOW OFF IN THIS AREA LATE WEDNESDAY/THURSDAY...AND THEN KEEP THE CLOSED UPPER LOW RELATIVELY STATIONARY THROUGH FRIDAY. ON THE OTHER HAND...THE 00Z GFS DIGS THIS TROUGH ACROSS THE ENTIRE WEST COAST...WITH THIS SYSTEM BECOMING CLOSED OFF ACROSS CALIFORNIA FRIDAY. THE ECMWF AND GEM SOLUTIONS ARE DRIER AND WARMER THAN THE GFS SOLUTION...WITH MORE OF WEST NORTHWEST FLOW. THE GFS SOLUTION WOULD SUGGEST A CONTINUED CHANCE OF SNOW ACROSS MUCH OF THE AREA...WITH MOIST SOUTHWEST FLOW FLOWING OVER THE ARCTIC AIRMASS. THE GEM AND ECMWF WOULD SUGGEST THE BEST CHANCE OF SNOW WOULD BE ACROSS THE WEST. CONFIDENCE IS LOW...AND HAVE BROAD BRUSH MAINLY SLIGHT POPS ACROSS THE LOWER ELEVATIONS...AND LOW CHANCE POPS IN THE MOUNTAINS FROM THURSDAY NIGHT THROUGH SATURDAY. BELOW AVERAGE TEMPERATURES ARE EXPECTED THROUGH THE EXTENDED...WITH WELL BELOW AVERAGE TEMPERATURES EXPECTED THURSDAY AND FRIDAY. TEMPERATURES BY FRIDAY...IF NOT BY THURSDAY IN SOME AREAS...COULD SEE TEMPERATURES 20 TO 30 DEGREES BELOW AVERAGE...AS 700 MB TEMPERATURES PLUNGE TO AROUND 25 BELOW ZERO CELSIUS. THE 00Z ECMWF IS MUCH WARMER FRIDAY AND SATURDAY...WITH 700 MB TEMPS 10-15 DEGREES WARMER THAN THE 00Z GFS. EXPECT THURSDAY AND FRIDAY TO BE WELL BELOW AVERAGE...EVEN IF THE ECMWF 700MB TEMPS ARE ACCURATE AS THE ECMWF ALSO INDICATES THIS ARCTIC FRONT PUSHING ACROSS THE AREA WEDNESDAY NIGHT/THURSDAY. && .AVIATION... A PACIFIC STORM SYSTEM ALONG THE CALIFORNIA COAST WILL EJECT ACROSS THE GREAT BASIN TODAY INTO THE NORTHERN HIGH PLAINS TONIGHT. A QUASI-STATIONARY ARCTIC FRONT WILL BE NEAR A KCOD-KWRL-KCPR LINE THIS MORNING WITH AREAS OF LIFR/IFR CIGS AND LOCAL IFR VSBYS IN FG NORTH OF THE FRONT. THIS FRONT ALONG WITH THE LOWER CLOUDS WILL RETREAT NORTHWARD BY 18Z. RAIN AND SNOW SHOWERS WILL BEGIN TO SPREAD INTO SOUTHERN WYOMING AT 18Z WITH WIDESPREAD IFR/LIFR CONDITIONS IN -SN DEVELOPING VCNTY KBPI-KPNA IN THE AFTERNOON. AREAS OF MVFR/IFR CONDITIONS IN -RASN WILL ALSO SPREAD NORTHWARD FROM KRKS TO VCNTY KLND-KCPR LINE BTWN 18-21Z WITH IFR/LIFR CONDITIONS BECOMING MORE WIDESPREAD VCNTY AND NORTH OF THIS KLND-KCPR LINE THROUGH THE AFTERNOON AS THIS PACIFIC SYSTEM BEGINS TO INTERACTS WITH THE ARCTIC FRONTAL BOUNDARY. THE HEAVIEST SNOWFALL IS EXPECTED TO MOVE OUT INTO THE NORTHERN PLAINS AFTER 06Z SUNDAY. && .FIRE WEATHER... A SLOW MOVING COLD FRONT WILL COLLIDE WITH AN UPPER LEVEL PACIFIC STORM OVER CENTRAL WYOMING TODAY WITH SNOW INCREASING IN THE NORTH AND RAIN OR SNOW SHOWERS IN THE SOUTH. ISOLATED THUNDERSTORMS ARE POSSIBLE IN EASTERN SWEETWATER AND SOUTHERN NATRONA COUNTIES IN THE AFTERNOON BEFORE RAPIDLY TURNING TO SNOW AS COOLING TAKES PLACE TONIGHT. SNOW WILL BECOME WIDESPREAD SATURDAY NIGHT INTO MID DAY SUNDAY. TEMPERATURES WILL TURN MUCH COLDER AS ARCTIC AIR TAKES HOLD OVER THE AREA. && .RIW WATCHES/WARNINGS/ADVISORIES... WINTER STORM WATCH FROM THIS AFTERNOON THROUGH SUNDAY MORNING WYZ005-007-010-011-014-015-017>020-022. WINTER WEATHER ADVISORY FROM NOON TODAY TO 3 AM MST SUNDAY WYZ025-026. && SHORT TERM...BERC LONG TERM...WM AVIATION...AEM FIRE WEATHER...BERC
Hazardous weather outlook, Feb 19, 4:00 AM MST, 6 hours 47 minutes before
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE RIVERTON WY 400 AM MST SAT FEB 19 2011 WYZ001>020-022>030-201300- 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- 400 AM MST SAT FEB 19 2011 ...WINTER WEATHER ADVISORY FOR THE UPPER GREEN RIVER BASIN THIS AFTERNOON THROUGH 3 AM SUNDAY... ...WINTER STORM WATCH FOR CENTRAL AND NORTHERN AREAS OF WYOMING THIS EVENING THROUGH NOON SUNDAY... THIS HAZARDOUS WEATHER OUTLOOK IS FOR WESTERN AND CENTRAL WYOMING. .DAY ONE...TODAY AND TONIGHT SNOW IS EXPECTED TO DEVELOP AROUND MIDDAY ACROSS THE UPPER GREEN RIVER BASIN...AND BECOME HEAVY AT TIMES. IN ADDITION...A WIDESPREAD SNOW EVENT IS EXPECTED FOR AREAS EAST OF THE DIVIDE THIS EVENING INTO SUNDAY. PLEASE REFER TO THE WINTER WEATHER WATCH AND ADVISORY PRODUCTS FOR DETAILS ON THIS DEVELOPING STORM SYSTEM. AREAS OF DENSE FOG...REDUCING THE VISIBILITY TO LESS THAN A QUARTER OF A MILE...WILL AFFECT PORTIONS OF JOHNSON COUNTY THIS MORNING. .DAYS TWO THROUGH SEVEN...SUNDAY THROUGH FRIDAY SNOW WILL CONTINUE THROUGH MIDDAY SUNDAY. ALONG WITH THE SNOW...SHARPLY COLDER TEMPERATURES ARE EXPECTED EAST OF THE DIVIDE ON SUNDAY AND MONDAY. .SPOTTER INFORMATION STATEMENT... SPOTTERS ARE ENCOURAGED TO REPORT ANY SNOWFALL AMOUNTS. THANK YOU. TEAM RIVERTON
The office that day
Everything else NWS Riverton, WY issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Feb 19, 3:01 AM MST | Winter Weather Advisory | RIW | Big Horn, Fremont, Hot Springs, Johnson, Lincoln, Natrona and 5 more | 33 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.