Alert archive / Wyoming / Winter Storm Warnings in 2016
Winter Storm Warning 1, NWS Riverton, WY
NWS Riverton, WY issued this winter storm warning at Jan 28, 2016, 1:51 PM MST for 4 counties in Wyoming. It took effect at Jan 29, 2016, 2:00 PM MST. It was in force for 27 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
- Jan 28, 2016, 1:51 PM MST (20:51 UTC)
- In effect from
- Jan 29, 2016, 2:00 PM MST
- Expired
- Jan 30, 2016, 5:00 PM MST
- In force
- 27 hr
- Issued by
- NWS Riverton, WY
Counties Fremont County, WY, Lincoln County, WY, Sublette County, WY, Teton County, WY
The radar
The Riverton/Lander radar (KRIW), 120 km from the middle of the area, began a volume at 20:53 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 |
|---|---|---|---|
| Jan 30, 2:58 AM MST | HEAVY SNOW 8 | 11 N Dubois, WY | BURROUGHS CREEK SNOTEL |
| Jan 30, 2:59 AM MST | HEAVY SNOW 8 | 6 Ene Alta, WY | GRAND TARGHEE SNOTEL |
| Jan 30, 2:59 AM MST | HEAVY SNOW 12 | 8 Nne Moran Junction, WY | BASE CAMP SNOTEL |
| Jan 30, 3:00 AM MST | HEAVY SNOW 7 | 25 Nw Dubois, WY | TOGWOTEE PASS SNOTEL |
| Jan 30, 3:00 AM MST | HEAVY SNOW 10 | 10 N Bondurant, WY | GRANITE CREEK SNOTEL |
| Jan 30, 3:00 AM MST | HEAVY SNOW 12 | 14 E Bondurant, WY | LOOMIS PARK SNOTEL |
| Jan 30, 3:00 AM MST | HEAVY SNOW 12 | 8 Wnw Jackson, WY | PHILLIPS BENCH SNOTEL |
| Jan 30, 3:00 AM MST | HEAVY SNOW 12 | 8 W South Entrance, WY | GRASSY LAKE SNOTEL |
| Jan 30, 3:00 AM MST | HEAVY SNOW 12 | South Entrance, WY | SNAKE RIVER STN SNOTEL |
| Jan 30, 3:56 AM MST | HEAVY SNOW 6 | 22 N Cora, WY | KENDALL RANGER STATION SNOTEL |
| Jan 30, 3:56 AM MST | HEAVY SNOW 10 | 19 Sw Bondurant, WY | BLIND BULL SUMMIT SNOTEL |
| Jan 30, 3:57 AM MST | HEAVY SNOW 6 | 17 E Afton, WY | TRIPLE PEAK SNOTEL |
| Jan 30, 3:57 AM MST | HEAVY SNOW 7 | 8 Ne Afton, WY | WILLOW CREEK SNOTEL |
| Jan 30, 3:57 AM MST | HEAVY SNOW 8 | 19 Se Afton, WY | SPRING CREEK DIVIDE SNOTEL |
| Jan 30, 3:57 AM MST | HEAVY SNOW 8 | 36 N Kemmerer, WY | INDIAN CREEK SNOTEL |
| Jan 30, 3:59 AM MST | HEAVY SNOW 9 | Brooks Lake, WY | |
| Jan 30, 3:59 AM MST | HEAVY SNOW 12 | Grand Targhee - Chief J, WY | |
| Jan 30, 4:00 AM MST | HEAVY SNOW 7 | 16 S Afton, WY | SALT RIVER SUMMIT SNOTEL 7760 MSL. 48-HOUR TOTAL. |
| Jan 30, 4:00 AM MST | HEAVY SNOW 16.1 | 17 Se Driggs, WY | PHILIPS BENCH SNOTEL 8200 MSL. 48-HOUR TOTAL. |
| Jan 30, 4:00 AM MST | HEAVY SNOW 19.5 | 10 Ene Driggs, WY | GRAND TARGHEE SNOTEL 9260 MSL. 48-HOUR TOTAL. |
| Jan 30, 4:00 AM MST | HEAVY SNOW 24.3 | 32 Nne Driggs, WY | GRASSY LAKE SNOTEL 7265 MSL. 48-HOUR TOTAL. |
| Jan 30, 4:00 AM MST | HEAVY SNOW 15 | 9.9 Nnw Jackson, WY | JACKSON HOLE - RAYMER |
| Jan 30, 4:00 AM MST | HEAVY SNOW 17 | Jackson Hole - Rendezvo, WY | |
| Jan 30, 4:01 AM MST | SNOW 5 | Togwotee Mountain Lodge, WY | |
| Jan 30, 4:01 AM MST | HEAVY SNOW 6 | 8.6 Nnw Jackson, WY | JACKSON HOLE - BASE |
| Jan 30, 4:01 AM MST | HEAVY SNOW 8 | Snow King, WY | |
| Jan 30, 4:01 AM MST | HEAVY SNOW 10 | 17.2 E Thayne, WY | BLIND BULL SUMMIT |
| Jan 30, 4:01 AM MST | HEAVY SNOW 16 | Jackson Hole - Mid Moun, WY | |
| Jan 30, 4:02 AM MST | HEAVY SNOW 7 | 14.3 E Thayne, WY | BOX Y RANCH |
| Jan 30, 4:02 AM MST | HEAVY SNOW 7 | Commissary Ridge, WY | |
| Jan 30, 12:39 PM MST | SNOW 0.1 | Riverton Airport, WY | |
| Jan 30, 12:39 PM MST | SNOW 0.5 | 1 S Lander, WY | LANDER AIRPORT |
| Jan 30, 12:40 PM MST | SNOW 1.5 | Afton, WY | |
| Jan 30, 12:40 PM MST | SNOW 2 | Atlantic City, WY | |
| Jan 30, 12:40 PM MST | SNOW 3 | 3 Se Bedford, WY | |
| Jan 30, 12:41 PM MST | SNOW 0.5 | Dubois, WY | |
| Jan 30, 12:42 PM MST | SNOW 3 | Jackson, WY | |
| Jan 30, 12:43 PM MST | HEAVY SNOW 11 | Old Faithful, WY | OLD FAITHFUL RANGER STATION |
| Jan 30, 12:43 PM MST | HEAVY SNOW 12 | Moose, WY | |
| Jan 30, 12:44 PM MST | SNOW 5.8 | 14 Nw Pinedale, WY | |
| Jan 30, 12:46 PM MST | SNOW 5 | Smoot, WY | |
| Jan 30, 12:51 PM MST | SNOW 0.2 | Lander, WY | |
| Jan 30, 12:51 PM MST | HEAVY SNOW 8 | 5 Sse Smoot, WY | |
| Jan 30, 12:52 PM MST | SNOW 4.5 | 2 Se Thayne, WY | |
| Jan 30, 12:54 PM MST | SNOW 1.8 | Pinedale, WY | |
| Jan 30, 12:54 PM MST | HEAVY SNOW 8.5 | 2 Ne Teton Village, WY | |
| Jan 30, 1:00 PM MST | SNOW 5 | 16 Ne Dubois, WY | CASTLE CREEK SNOTEL |
| Jan 30, 1:00 PM MST | HEAVY SNOW 9 | 11 N Dubois, WY | BURROUGHS CREEK SNOTEL |
| Jan 30, 1:02 PM MST | HEAVY SNOW 12 | 10 N Bondurant, WY | GRANITE CREEK SNOTEL |
| Jan 30, 1:02 PM MST | HEAVY SNOW 13 | 8 Nne Moran Junction, WY | BASE CAMP SNOTEL |
| Jan 30, 1:02 PM MST | HEAVY SNOW 18 | 6 Ene Alta, WY | GRAND TARGHEE SNOTEL |
| Jan 30, 1:03 PM MST | HEAVY SNOW 8 | 20 Ne Bondurant, WY | GROS VENTRE SUMMIT SNOTEL |
| Jan 30, 1:03 PM MST | HEAVY SNOW 9 | 25 Nw Dubois, WY | TOGWOTEE PASS SNOTEL |
| Jan 30, 1:03 PM MST | HEAVY SNOW 13 | 8 W South Entrance, WY | GRASSY LAKE SNOTEL |
| Jan 30, 1:03 PM MST | HEAVY SNOW 15 | 14 E Bondurant, WY | LOOMIS PARK SNOTEL |
| Jan 30, 1:03 PM MST | HEAVY SNOW 16 | South Entrance, WY | SNAKE RIVER STN SNOTEL |
| Jan 30, 1:03 PM MST | HEAVY SNOW 18 | 8 Wnw Jackson, WY | PHILLIPS BENCH SNOTEL |
| Jan 30, 1:04 PM MST | SNOW 2 | 12 Nne Pinedale, WY | ELKHART PARK G.S. SNOTEL |
| Jan 30, 1:04 PM MST | SNOW 5 | 16 Sw Dubois, WY | GUNSITE PASS SNOTEL |
| Jan 30, 1:04 PM MST | HEAVY SNOW 6 | 12 N Cora, WY | NEW FORK LAKE 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, 8.9 hours before the alert went out and 126 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
- 1563 m above ground
- 0-6 km bulk shear
- 11 kt
- 0-1 km storm-relative helicity
- 67 m²/s²
- 0-3 km storm-relative helicity
- 78 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
518 WWUS45 KRIW 282051 WSWRIW URGENT - WINTER WEATHER MESSAGE NATIONAL WEATHER SERVICE RIVERTON WY 151 PM MST THU JAN 28 2016 ...MODERATE TO HEAVY SNOW TO RETURN TO WESTERN AND SOUTHERN WYOMING... .A POTENT PACIFIC WEATHER SYSTEM WILL MOVE INTO WESTERN WYOMING AND MAY BRING MODERATE TO HEAVY SNOW TO MUCH OF SOUTHERN AND WESTERN WYOMING FROM FRIDAY AFTERNOON THROUGH THE DAY SATURDAY. WYZ012-024-291100- /O.UPG.KRIW.WS.A.0002.160130T0000Z-160131T0000Z/ /O.NEW.KRIW.WS.W.0001.160129T2100Z-160131T0000Z/ TETON AND GROS VENTRE MOUNTAINS-SALT RIVER AND WYOMING RANGES- 151 PM MST THU JAN 28 2016 ...WINTER STORM WARNING IN EFFECT FROM 2 PM FRIDAY TO 5 PM MST SATURDAY... THE NATIONAL WEATHER SERVICE IN RIVERTON HAS ISSUED A WINTER STORM WARNING FOR SNOW AND BLOWING SNOW...WHICH IS IN EFFECT FROM 2 PM FRIDAY TO 5 PM MST SATURDAY. THE WINTER STORM WATCH IS NO LONGER IN EFFECT. * TIMING...LIGHT SNOW FRIDAY WILL BECOME STEADIER AND MUCH HEAVIER FRIDAY NIGHT THROUGH SATURDAY. THE HEAVIEST SNOW IS EXPECTED FRIDAY NIGHT THROUGH SATURDAY MORNING. * SNOWFALL AMOUNTS...12 TO 24 INCHES. * WINDS...SOUTHWEST BECOMING WEST TO NORTHWEST AND INCREASING TO 15 TO 25 MPH WITH HIGHER GUSTS. * IMPACTS...THE COMBINATION OF MODERATE TO HEAVY SNOW AND GUSTY WINDS WILL MAKE TRAVEL CONDITIONS DIFFICULT FRIDAY AFTERNOON THROUGH SATURDAY NIGHT...INCLUDING TETON AND TOGWOTEE PASSES. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER STORM WARNING MEANS SIGNIFICANT AMOUNTS OF SNOW ALONG WITH STRONG WINDS ARE POSSIBLE. THIS WILL MAKE TRAVEL VERY HAZARDOUS OR IMPOSSIBLE. && $$ WYZ013-291100- /O.UPG.KRIW.WS.A.0002.160130T0000Z-160131T0000Z/ /O.NEW.KRIW.WS.W.0001.160129T2100Z-160131T0000Z/ JACKSON HOLE- INCLUDING THE CITY OF...JACKSON 151 PM MST THU JAN 28 2016 ...WINTER STORM WARNING IN EFFECT FROM 2 PM FRIDAY TO 5 PM MST SATURDAY... THE NATIONAL WEATHER SERVICE IN RIVERTON HAS ISSUED A WINTER STORM WARNING FOR SNOW AND BLOWING SNOW...WHICH IS IN EFFECT FROM 2 PM FRIDAY TO 5 PM MST SATURDAY. THE WINTER STORM WATCH IS NO LONGER IN EFFECT. * TIMING...LIGHT SNOW ON FRIDAY WILL BECOME STEADIER AND HEAVIER FRIDAY NIGHT THROUGH SATURDAY. THE HEAVIEST SNOW IS EXPECTED FRIDAY NIGHT THROUGH SATURDAY MORNING. * SNOWFALL AMOUNTS...4 TO 10 INCHES. * WINDS...SOUTH TO SOUTHWEST...BECOMING WEST TO NORTHWEST 10 TO 20 MPH WITH HIGHER GUSTS. * IMPACTS...THE COMBINATION OF MODERATE TO HEAVY SNOW AND GUSTY WINDS WILL MAKE TRAVEL CONDITIONS DIFFICULT FRIDAY AFTERNOON THROUGH SATURDAY NIGHT. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER STORM WARNING MEANS SIGNIFICANT AMOUNTS OF SNOW ALONG WITH STRONG WINDS ARE POSSIBLE. THIS WILL MAKE TRAVEL VERY HAZARDOUS OR IMPOSSIBLE. && $$ WYZ023-291100- /O.UPG.KRIW.WS.A.0002.160130T0000Z-160131T0000Z/ /O.NEW.KRIW.WS.W.0001.160129T2100Z-160131T0000Z/ STAR VALLEY- INCLUDING THE CITIES OF...AFTON...ALPINE...STAR VALLEY RANCH... THAYNE 151 PM MST THU JAN 28 2016 ...WINTER STORM WARNING IN EFFECT FROM 2 PM FRIDAY TO 5 PM MST SATURDAY... THE NATIONAL WEATHER SERVICE IN RIVERTON HAS ISSUED A WINTER STORM WARNING FOR SNOW AND BLOWING SNOW...WHICH IS IN EFFECT FROM 2 PM FRIDAY TO 5 PM MST SATURDAY. THE WINTER STORM WATCH IS NO LONGER IN EFFECT. * TIMING...LIGHT SNOW ON FRIDAY WILL BECOME STEADIER AND HEAVIER FRIDAY NIGHT THROUGH SATURDAY. THE HEAVIEST SNOW IS EXPECTED FRIDAY NIGHT THROUGH SATURDAY MORNING. * SNOWFALL AMOUNTS...6 TO 11 INCHES. * WINDS...SOUTH TO SOUTHWEST...BECOMING WEST TO NORTHWEST 10 TO 20 MPH WITH HIGHER GUSTS. * IMPACTS...THE COMBINATION OF MODERATE TO HEAVY SNOW AND GUSTY WINDS WILL MAKE TRAVEL CONDITIONS DIFFICULT FRIDAY AFTERNOON THROUGH SATURDAY NIGHT. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER STORM WARNING MEANS SIGNIFICANT AMOUNTS OF SNOW ALONG WITH STRONG WINDS ARE POSSIBLE. THIS WILL MAKE TRAVEL VERY HAZARDOUS OR IMPOSSIBLE. && $$ WYZ027-291100- /O.NEW.KRIW.WS.W.0001.160129T2100Z-160131T0000Z/ SOUTH LINCOLN COUNTY- INCLUDING THE CITIES OF...KEMMERER...COKEVILLE 151 PM MST THU JAN 28 2016 ...WINTER STORM WARNING IN EFFECT FROM 2 PM FRIDAY TO 5 PM MST SATURDAY... THE NATIONAL WEATHER SERVICE IN RIVERTON HAS ISSUED A WINTER STORM WARNING FOR SNOW AND BLOWING SNOW...WHICH IS IN EFFECT FROM 2 PM FRIDAY TO 5 PM MST SATURDAY. * TIMING...LIGHT SNOW LATE FRIDAY WILL BECOME STEADIER AND HEAVIER FRIDAY NIGHT THROUGH SATURDAY. THE HEAVIEST SNOW IS EXPECTED FRIDAY NIGHT THROUGH SATURDAY MORNING. * SNOWFALL AMOUNTS...4 TO 10 INCHES. * WINDS...SOUTH TO SOUTHWEST...BECOMING WEST TO NORTHWEST 15 TO 25 MPH WITH HIGHER GUSTS. * IMPACTS...THE COMBINATION OF MODERATE TO HEAVY SNOW AND GUSTY WINDS WILL MAKE TRAVEL CONDITIONS DIFFICULT FRIDAY AFTERNOON THROUGH SATURDAY NIGHT. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER STORM WARNING MEANS SIGNIFICANT AMOUNTS OF SNOW ALONG WITH STRONG WINDS ARE POSSIBLE. THIS WILL MAKE TRAVEL VERY HAZARDOUS OR IMPOSSIBLE. && $$ WYZ001-291100- /O.UPG.KRIW.WS.A.0002.160130T0000Z-160131T0000Z/ /O.NEW.KRIW.WW.Y.0006.160129T2100Z-160131T0000Z/ YELLOWSTONE NATIONAL PARK- INCLUDING THE CITIES OF...LAKE...MAMMOTH...OLD FAITHFUL 151 PM MST THU JAN 28 2016 ...WINTER WEATHER ADVISORY IN EFFECT FROM 2 PM FRIDAY TO 5 PM MST SATURDAY... THE NATIONAL WEATHER SERVICE IN RIVERTON HAS ISSUED A WINTER WEATHER ADVISORY FOR SNOW AND BLOWING SNOW...WHICH IS IN EFFECT FROM 2 PM FRIDAY TO 5 PM MST SATURDAY. THE WINTER STORM WATCH IS NO LONGER IN EFFECT. * TIMING...LIGHT SNOW ON FRIDAY WILL BECOME STEADIER AND HEAVIER FRIDAY NIGHT THROUGH SATURDAY. THE HEAVIEST SNOW IS EXPECTED FRIDAY NIGHT TO SATURDAY MORNING. * SNOWFALL AMOUNTS...4 TO 12 INCHES. * WINDS...SOUTHWEST BECOMING NORTHWEST AND INCREASING TO 15 TO 25 MPH WITH HIGHER GUSTS. * IMPACTS...THE COMBINATION OF MODERATE TO HEAVY SNOW AND GUSTY WINDS WILL MAKE TRAVEL CONDITIONS DIFFICULT FRIDAY AFTERNOON THROUGH SATURDAY AFTERNOON. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER WEATHER ADVISORY FOR SNOW AND BLOWING SNOW MEANS THAT VISIBILITIES WILL BE LIMITED DUE TO A COMBINATION OF FALLING AND BLOWING SNOW. USE CAUTION WHEN TRAVELING... ESPECIALLY IN OPEN AREAS. && $$ WYZ014-025-291100- /O.NEW.KRIW.WW.Y.0006.160129T2100Z-160131T0000Z/ WIND RIVER MOUNTAINS WEST-UPPER GREEN RIVER BASIN FOOTHILLS- INCLUDING THE CITY OF...PINEDALE 151 PM MST THU JAN 28 2016 ...WINTER WEATHER ADVISORY IN EFFECT FROM 2 PM FRIDAY TO 5 PM MST SATURDAY... THE NATIONAL WEATHER SERVICE IN RIVERTON HAS ISSUED A WINTER WEATHER ADVISORY FOR SNOW AND BLOWING SNOW...WHICH IS IN EFFECT FROM 2 PM FRIDAY TO 5 PM MST SATURDAY. * TIMING...LIGHT SNOW ON FRIDAY WILL BECOME STEADIER AND HEAVIER FRIDAY NIGHT THROUGH SATURDAY. THE HEAVIEST SNOW IS EXPECTED FRIDAY NIGHT THROUGH SATURDAY MORNING. * SNOWFALL AMOUNTS...3 TO 6 INCHES OVER THE FOOTHILLS AND 5 TO 12 INCHES IN THE MOUNTAINS. * WINDS...SOUTHWEST BECOMING WEST AND INCREASING TO 15 TO 25 MPH WITH HIGHER GUSTS. * IMPACTS...THE COMBINATION OF MODERATE TO HEAVY SNOW AND GUSTY WINDS WILL MAKE TRAVEL CONDITIONS DIFFICULT FRIDAY NIGHT THROUGH SATURDAY AFTERNOON. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER WEATHER ADVISORY FOR SNOW AND BLOWING SNOW MEANS THAT VISIBILITIES WILL BE LIMITED DUE TO A COMBINATION OF FALLING AND BLOWING SNOW. USE CAUTION WHEN TRAVELING... ESPECIALLY IN OPEN AREAS. && $$ WYZ028>030-291100- /O.NEW.KRIW.WW.Y.0006.160130T0000Z-160131T0000Z/ ROCK SPRINGS AND GREEN RIVER-FLAMING GORGE-EAST SWEETWATER COUNTY- INCLUDING THE CITIES OF...ROCK SPRINGS...GREEN RIVER...WAMSUTTER 151 PM MST THU JAN 28 2016 ...WINTER WEATHER ADVISORY IN EFFECT FROM 5 PM FRIDAY TO 5 PM MST SATURDAY... THE NATIONAL WEATHER SERVICE IN RIVERTON HAS ISSUED A WINTER WEATHER ADVISORY FOR SNOW AND BLOWING SNOW...WHICH IS IN EFFECT FROM 5 PM FRIDAY TO 5 PM MST SATURDAY. * TIMING...LIGHT SNOW FRIDAY AFTERNOON WILL BECOME HEAVIER BY SATURDAY MORNING...LASTING THROUGH THE DAY SATURDAY. THE HEAVIEST SNOW IS EXPECTED SATURDAY MORNING INTO SATURDAY AFTERNOON. * SNOWFALL AMOUNTS...2 TO 4 INCHES. * WINDS...SOUTHWEST BECOMING WEST AND INCREASING TO 15 TO 25 MPH WITH HIGHER GUSTS. * IMPACTS...THE COMBINATION OF MODERATE TO HEAVY SNOW AND GUSTY WINDS WILL MAKE TRAVEL CONDITIONS DIFFICULT SATURDAY MORNING TO SATURDAY NIGHT. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER WEATHER ADVISORY FOR SNOW AND BLOWING SNOW MEANS THAT VISIBILITIES WILL BE LIMITED DUE TO A COMBINATION OF FALLING AND BLOWING SNOW. USE CAUTION WHEN TRAVELING... ESPECIALLY IN OPEN AREAS. && $$
6 follow-up statements
530 WWUS45 KRIW 290841 WSWRIW URGENT - WINTER WEATHER MESSAGE NATIONAL WEATHER SERVICE RIVERTON WY 141 AM MST FRI JAN 29 2016 ...MODERATE TO HEAVY SNOW TO RETURN TO WESTERN AND SOUTHERN WYOMING LATE THIS AFTERNOON... .A POTENT PACIFIC WEATHER SYSTEM WILL MOVE INTO WESTERN WYOMING BRINGING MODERATE TO HEAVY SNOW TO MUCH OF SOUTHERN AND WESTERN WYOMING LATE THIS AFTERNOON THROUGH THE DAY SATURDAY. WYZ012-024-292130- /O.CON.KRIW.WS.W.0001.160129T2100Z-160131T0000Z/ TETON AND GROS VENTRE MOUNTAINS-SALT RIVER AND WYOMING RANGES- 141 AM MST FRI JAN 29 2016 ...WINTER STORM WARNING REMAINS IN EFFECT FROM 2 PM THIS AFTERNOON TO 5 PM MST SATURDAY... * TIMING...LIGHT SNOW FOR MUCH OF THE DAY WILL BECOME STEADIER AND MUCH HEAVIER LATE THIS AFTERNOON THROUGH SATURDAY. THE HEAVIEST SNOW IS EXPECTED TONIGHT THROUGH SATURDAY MORNING. * SNOWFALL AMOUNTS...12 TO 24 INCHES. * WINDS...SOUTHWEST BECOMING WEST TO NORTHWEST AND INCREASING TO 15 TO 25 MPH WITH HIGHER GUSTS. * IMPACTS...THE COMBINATION OF MODERATE TO HEAVY SNOW AND GUSTY WINDS WILL MAKE TRAVEL CONDITIONS DIFFICULT THIS AFTERNOON THROUGH SATURDAY NIGHT...INCLUDING TETON AND TOGWOTEE PASSES. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER STORM WARNING MEANS SIGNIFICANT AMOUNTS OF SNOW ALONG WITH STRONG WINDS ARE POSSIBLE. THIS WILL MAKE TRAVEL VERY HAZARDOUS OR IMPOSSIBLE. && $$ WYZ013-292130- /O.CON.KRIW.WS.W.0001.160129T2100Z-160131T0000Z/ JACKSON HOLE- INCLUDING THE CITY OF...JACKSON 141 AM MST FRI JAN 29 2016 ...WINTER STORM WARNING REMAINS IN EFFECT FROM 2 PM THIS AFTERNOON TO 5 PM MST SATURDAY... * TIMING...LIGHT SNOW WILL BECOME STEADIER AND HEAVIER LATE THIS AFTERNOON THROUGH SATURDAY. THE HEAVIEST SNOW IS EXPECTED TONIGHT THROUGH SATURDAY MORNING. * SNOWFALL AMOUNTS...5 TO 10 INCHES...HIGHEST NORTH OF MOOSE...INCLUDING MORAN JUNCTION. * WINDS...SOUTH TO SOUTHWEST...BECOMING WEST TO NORTHWEST 10 TO 20 MPH WITH HIGHER GUSTS. * IMPACTS...THE COMBINATION OF MODERATE TO HEAVY SNOW AND GUSTY WINDS WILL MAKE TRAVEL CONDITIONS DIFFICULT THIS AFTERNOON THROUGH SATURDAY NIGHT. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER STORM WARNING MEANS SIGNIFICANT AMOUNTS OF SNOW ALONG WITH STRONG WINDS ARE POSSIBLE. THIS WILL MAKE TRAVEL VERY HAZARDOUS OR IMPOSSIBLE. && $$ WYZ023-292130- /O.CON.KRIW.WS.W.0001.160129T2100Z-160131T0000Z/ STAR VALLEY- INCLUDING THE CITIES OF...AFTON...ALPINE...STAR VALLEY RANCH... THAYNE 141 AM MST FRI JAN 29 2016 ...WINTER STORM WARNING REMAINS IN EFFECT FROM 2 PM THIS AFTERNOON TO 5 PM MST SATURDAY... * TIMING...LIGHT SNOW WILL BECOME STEADIER AND HEAVIER LATE THIS AFTERNOON THROUGH SATURDAY. THE HEAVIEST SNOW IS EXPECTED TONIGHT THROUGH SATURDAY MORNING. * SNOWFALL AMOUNTS...6 TO 11 INCHES...HIGHEST AROUND ALPINE AND EAST OF THAYNE. * WINDS...SOUTH TO SOUTHWEST...BECOMING WEST TO NORTHWEST 10 TO 20 MPH WITH HIGHER GUSTS. * IMPACTS...THE COMBINATION OF MODERATE TO HEAVY SNOW AND GUSTY WINDS WILL MAKE TRAVEL CONDITIONS DIFFICULT THIS AFTERNOON THROUGH SATURDAY NIGHT. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER STORM WARNING MEANS SIGNIFICANT AMOUNTS OF SNOW ALONG WITH STRONG WINDS ARE POSSIBLE. THIS WILL MAKE TRAVEL VERY HAZARDOUS OR IMPOSSIBLE. && $$ WYZ027-292130- /O.CON.KRIW.WS.W.0001.160129T2100Z-160131T0000Z/ SOUTH LINCOLN COUNTY- INCLUDING THE CITIES OF...KEMMERER...COKEVILLE 141 AM MST FRI JAN 29 2016 ...WINTER STORM WARNING REMAINS IN EFFECT FROM 2 PM THIS AFTERNOON TO 5 PM MST SATURDAY... * TIMING...LIGHT SNOW WILL BECOME STEADIER AND HEAVIER LATE THIS AFTERNOON THROUGH SATURDAY. THE HEAVIEST SNOW IS EXPECTED TONIGHT THROUGH SATURDAY MORNING. * SNOWFALL AMOUNTS...5 TO 10 INCHES WEST OF HIGHWAY 189...2 TO 4 INCHES EAST. * WINDS...SOUTH TO SOUTHWEST...BECOMING WEST TO NORTHWEST 15 TO 25 MPH WITH HIGHER GUSTS. * IMPACTS...THE COMBINATION OF MODERATE TO HEAVY SNOW AND GUSTY WINDS WILL MAKE TRAVEL CONDITIONS DIFFICULT THIS AFTERNOON THROUGH SATURDAY NIGHT. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER STORM WARNING MEANS SIGNIFICANT AMOUNTS OF SNOW ALONG WITH STRONG WINDS ARE POSSIBLE. THIS WILL MAKE TRAVEL VERY HAZARDOUS OR IMPOSSIBLE. && $$ WYZ014-025-292130- /O.CON.KRIW.WW.Y.0006.160129T2100Z-160131T0000Z/ WIND RIVER MOUNTAINS WEST-UPPER GREEN RIVER BASIN FOOTHILLS- INCLUDING THE CITY OF...PINEDALE 141 AM MST FRI JAN 29 2016 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM 2 PM THIS AFTERNOON TO 5 PM MST SATURDAY... * TIMING...LIGHT SNOW WILL BECOME STEADIER AND HEAVIER LATE THIS AFTERNOON THROUGH SATURDAY. THE HEAVIEST SNOW IS EXPECTED TONIGHT THROUGH SATURDAY MORNING. * SNOWFALL AMOUNTS...3 TO 6 INCHES OVER THE FOOTHILLS...UP TO 8 AROUND BONDURANT...AND 6 TO 12 INCHES IN THE MOUNTAINS...WITH THE HIGHER AMOUNTS WEST OF SOUTH PASS. * WINDS...SOUTHWEST BECOMING WEST AND INCREASING TO 15 TO 25 MPH WITH HIGHER GUSTS. * IMPACTS...THE COMBINATION OF MODERATE TO HEAVY SNOW AND GUSTY WINDS WILL MAKE TRAVEL CONDITIONS DIFFICULT TONIGHT THROUGH SATURDAY AFTERNOON. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER WEATHER ADVISORY FOR SNOW AND BLOWING SNOW MEANS THAT VISIBILITIES WILL BE LIMITED DUE TO A COMBINATION OF FALLING AND BLOWING SNOW. USE CAUTION WHEN TRAVELING... ESPECIALLY IN OPEN AREAS. && $$ WYZ028>030-292130- /O.CON.KRIW.WW.Y.0006.160130T0000Z-160131T0000Z/ ROCK SPRINGS AND GREEN RIVER-FLAMING GORGE-EAST SWEETWATER COUNTY- INCLUDING THE CITIES OF...ROCK SPRINGS...GREEN RIVER...WAMSUTTER 141 AM MST FRI JAN 29 2016 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM 5 PM THIS AFTERNOON TO 5 PM MST SATURDAY... * TIMING...LIGHT SNOW THIS AFTERNOON WILL BECOME HEAVIER BY SATURDAY MORNING...LASTING THROUGH THE DAY SATURDAY. THE HEAVIEST SNOW IS EXPECTED SATURDAY MORNING INTO SATURDAY AFTERNOON. * SNOWFALL AMOUNTS...2 TO 4 INCHES. * WINDS...SOUTHWEST BECOMING WEST AND INCREASING TO 15 TO 25 MPH WITH HIGHER GUSTS. * IMPACTS...THE COMBINATION OF MODERATE TO HEAVY SNOW AND GUSTY WINDS WILL MAKE TRAVEL CONDITIONS DIFFICULT SATURDAY MORNING TO SATURDAY NIGHT. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER WEATHER ADVISORY FOR SNOW AND BLOWING SNOW MEANS THAT VISIBILITIES WILL BE LIMITED DUE TO A COMBINATION OF FALLING AND BLOWING SNOW. USE CAUTION WHEN TRAVELING... ESPECIALLY IN OPEN AREAS. && $$ WYZ001-292130- /O.CON.KRIW.WW.Y.0006.160129T2100Z-160131T0000Z/ YELLOWSTONE NATIONAL PARK- INCLUDING THE CITIES OF...LAKE...MAMMOTH...OLD FAITHFUL 141 AM MST FRI JAN 29 2016 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM 2 PM THIS AFTERNOON TO 5 PM MST SATURDAY... * TIMING...LIGHT SNOW WILL BECOME STEADIER AND HEAVIER LATE THIS AFTERNOON THROUGH SATURDAY. THE HEAVIEST SNOW IS EXPECTED TONIGHT TO SATURDAY MORNING. * SNOWFALL AMOUNTS...3 TO 6 INCHES IN MOST AREAS...WITH THE LOWEST AMOUNTS EXPECTED AROUND MAMMOTH. 10 TO 16 INCHES OVER THE HIGHER ELEVATIONS AND SOUTHWEST PORTIONS OF THE PARK. * WINDS...SOUTHWEST BECOMING NORTHWEST AND INCREASING TO 15 TO 25 MPH WITH HIGHER GUSTS MORE COMMON IN THE HIGHER ELEVATIONS. * IMPACTS...THE COMBINATION OF MODERATE TO HEAVY SNOW AND GUSTY WINDS WILL MAKE TRAVEL CONDITIONS DIFFICULT THIS AFTERNOON THROUGH SATURDAY AFTERNOON. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER WEATHER ADVISORY FOR SNOW AND BLOWING SNOW MEANS THAT VISIBILITIES WILL BE LIMITED DUE TO A COMBINATION OF FALLING AND BLOWING SNOW. USE CAUTION WHEN TRAVELING... ESPECIALLY IN OPEN AREAS. && $$
348 WWUS45 KRIW 292044 WSWRIW URGENT - WINTER WEATHER MESSAGE NATIONAL WEATHER SERVICE RIVERTON WY 144 PM MST FRI JAN 29 2016 ...MODERATE TO HEAVY SNOW TO RETURN TO WESTERN AND SOUTHERN WYOMING LATE THIS AFTERNOON... .A POTENT PACIFIC WEATHER SYSTEM WILL MOVE INTO WESTERN WYOMING BRINGING MODERATE TO HEAVY SNOW TO MUCH OF SOUTHERN AND WESTERN WYOMING LATE THIS AFTERNOON THROUGH THE DAY SATURDAY. WYZ012-024-300300- /O.CON.KRIW.WS.W.0001.160129T2100Z-160131T0000Z/ TETON AND GROS VENTRE MOUNTAINS-SALT RIVER AND WYOMING RANGES- 144 PM MST FRI JAN 29 2016 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 5 PM MST SATURDAY... * TIMING...LIGHT SNOW FOR MUCH OF THE DAY WILL BECOME STEADIER AND MUCH HEAVIER LATE THIS AFTERNOON THROUGH SATURDAY. THE HEAVIEST SNOW IS EXPECTED TONIGHT THROUGH SATURDAY MORNING. * SNOWFALL AMOUNTS...12 TO 22 INCHES. * WINDS...SOUTHWEST BECOMING WEST TO NORTHWEST AND INCREASING TO 15 TO 25 MPH WITH HIGHER GUSTS. * IMPACTS...THE COMBINATION OF MODERATE TO HEAVY SNOW AND GUSTY WINDS WILL MAKE TRAVEL CONDITIONS DIFFICULT THIS AFTERNOON THROUGH SATURDAY NIGHT...INCLUDING TETON AND TOGWOTEE PASSES. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER STORM WARNING MEANS SIGNIFICANT AMOUNTS OF SNOW ALONG WITH STRONG WINDS ARE POSSIBLE. THIS WILL MAKE TRAVEL VERY HAZARDOUS OR IMPOSSIBLE. && $$ WYZ013-300300- /O.CON.KRIW.WS.W.0001.160129T2100Z-160131T0000Z/ JACKSON HOLE- INCLUDING THE CITY OF...JACKSON 144 PM MST FRI JAN 29 2016 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 5 PM MST SATURDAY... * TIMING...LIGHT SNOW WILL BECOME STEADIER AND HEAVIER LATE THIS AFTERNOON THROUGH SATURDAY. THE HEAVIEST SNOW IS EXPECTED TONIGHT THROUGH SATURDAY MORNING. * SNOWFALL AMOUNTS...5 TO 10 INCHES...HIGHEST NORTH OF MOOSE... INCLUDING MORAN JUNCTION. * WINDS...SOUTH TO SOUTHWEST...BECOMING WEST TO NORTHWEST 10 TO 20 MPH WITH HIGHER GUSTS. * IMPACTS...THE COMBINATION OF MODERATE TO HEAVY SNOW AND GUSTY WINDS WILL MAKE TRAVEL CONDITIONS DIFFICULT THIS AFTERNOON THROUGH SATURDAY NIGHT. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER STORM WARNING MEANS SIGNIFICANT AMOUNTS OF SNOW ALONG WITH STRONG WINDS ARE POSSIBLE. THIS WILL MAKE TRAVEL VERY HAZARDOUS OR IMPOSSIBLE. && $$ WYZ023-300300- /O.CON.KRIW.WS.W.0001.160129T2100Z-160131T0000Z/ STAR VALLEY- INCLUDING THE CITIES OF...AFTON...ALPINE...STAR VALLEY RANCH... THAYNE 144 PM MST FRI JAN 29 2016 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 5 PM MST SATURDAY... * TIMING...LIGHT SNOW WILL BECOME STEADIER AND HEAVIER LATE THIS AFTERNOON THROUGH SATURDAY. THE HEAVIEST SNOW IS EXPECTED TONIGHT THROUGH SATURDAY MORNING. * SNOWFALL AMOUNTS...6 TO 11 INCHES...HIGHEST AROUND ALPINE AND EAST OF THAYNE. * WINDS...SOUTH TO SOUTHWEST...BECOMING WEST TO NORTHWEST 10 TO 20 MPH WITH HIGHER GUSTS. * IMPACTS...THE COMBINATION OF MODERATE TO HEAVY SNOW AND GUSTY WINDS WILL MAKE TRAVEL CONDITIONS DIFFICULT THIS AFTERNOON THROUGH SATURDAY NIGHT. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER STORM WARNING MEANS SIGNIFICANT AMOUNTS OF SNOW ALONG WITH STRONG WINDS ARE POSSIBLE. THIS WILL MAKE TRAVEL VERY HAZARDOUS OR IMPOSSIBLE. && $$ WYZ027-300300- /O.CON.KRIW.WS.W.0001.160129T2100Z-160131T0000Z/ SOUTH LINCOLN COUNTY- INCLUDING THE CITIES OF...KEMMERER...COKEVILLE 144 PM MST FRI JAN 29 2016 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 5 PM MST SATURDAY... * TIMING...LIGHT SNOW WILL BECOME STEADIER AND HEAVIER LATE THIS AFTERNOON THROUGH SATURDAY. THE HEAVIEST SNOW IS EXPECTED TONIGHT THROUGH SATURDAY MORNING. * SNOWFALL AMOUNTS...5 TO 10 INCHES WEST OF HIGHWAY 189...2 TO 4 INCHES EAST. * WINDS...SOUTH TO SOUTHWEST...BECOMING WEST TO NORTHWEST 15 TO 25 MPH WITH HIGHER GUSTS. * IMPACTS...THE COMBINATION OF MODERATE TO HEAVY SNOW AND GUSTY WINDS WILL MAKE TRAVEL CONDITIONS DIFFICULT THIS AFTERNOON THROUGH SATURDAY NIGHT. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER STORM WARNING MEANS SIGNIFICANT AMOUNTS OF SNOW ALONG WITH STRONG WINDS ARE POSSIBLE. THIS WILL MAKE TRAVEL VERY HAZARDOUS OR IMPOSSIBLE. && $$ WYZ014-025-300300- /O.CON.KRIW.WW.Y.0006.160129T2100Z-160131T0000Z/ WIND RIVER MOUNTAINS WEST-UPPER GREEN RIVER BASIN FOOTHILLS- INCLUDING THE CITY OF...PINEDALE 144 PM MST FRI JAN 29 2016 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 5 PM MST SATURDAY... * TIMING...LIGHT SNOW WILL BECOME STEADIER AND HEAVIER LATE THIS AFTERNOON THROUGH SATURDAY. THE HEAVIEST SNOW IS EXPECTED TONIGHT THROUGH SATURDAY MORNING. * SNOWFALL AMOUNTS...3 TO 6 INCHES OVER THE FOOTHILLS...UP TO 8 AROUND BONDURANT...AND 6 TO 12 INCHES IN THE MOUNTAINS...WITH THE HIGHER AMOUNTS WEST OF SOUTH PASS. * WINDS...SOUTHWEST BECOMING WEST AND INCREASING TO 15 TO 25 MPH WITH HIGHER GUSTS. * IMPACTS...THE COMBINATION OF MODERATE TO HEAVY SNOW AND GUSTY WINDS WILL MAKE TRAVEL CONDITIONS DIFFICULT TONIGHT THROUGH SATURDAY AFTERNOON. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER WEATHER ADVISORY FOR SNOW AND BLOWING SNOW MEANS THAT VISIBILITIES WILL BE LIMITED DUE TO A COMBINATION OF FALLING AND BLOWING SNOW. USE CAUTION WHEN TRAVELING... ESPECIALLY IN OPEN AREAS. && $$ WYZ028>030-300300- /O.CON.KRIW.WW.Y.0006.160130T0000Z-160131T0000Z/ ROCK SPRINGS AND GREEN RIVER-FLAMING GORGE-EAST SWEETWATER COUNTY- INCLUDING THE CITIES OF...ROCK SPRINGS...GREEN RIVER...WAMSUTTER 144 PM MST FRI JAN 29 2016 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM 5 PM THIS AFTERNOON TO 5 PM MST SATURDAY... * TIMING...LIGHT SNOW THIS AFTERNOON WILL BECOME HEAVIER BY SATURDAY MORNING...LASTING THROUGH THE DAY SATURDAY. THE HEAVIEST SNOW IS EXPECTED SATURDAY MORNING INTO SATURDAY AFTERNOON. * SNOWFALL AMOUNTS...2 TO 5 INCHES. * WINDS...SOUTHWEST BECOMING WEST AND INCREASING TO 15 TO 25 MPH WITH HIGHER GUSTS. * IMPACTS...THE COMBINATION OF MODERATE TO HEAVY SNOW AND GUSTY WINDS WILL MAKE TRAVEL CONDITIONS DIFFICULT SATURDAY MORNING TO SATURDAY NIGHT. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER WEATHER ADVISORY FOR SNOW AND BLOWING SNOW MEANS THAT VISIBILITIES WILL BE LIMITED DUE TO A COMBINATION OF FALLING AND BLOWING SNOW. USE CAUTION WHEN TRAVELING... ESPECIALLY IN OPEN AREAS. && $$ WYZ001-300300- /O.CON.KRIW.WW.Y.0006.160129T2100Z-160131T0000Z/ YELLOWSTONE NATIONAL PARK- INCLUDING THE CITIES OF...LAKE...MAMMOTH...OLD FAITHFUL 144 PM MST FRI JAN 29 2016 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 5 PM MST SATURDAY... * TIMING...LIGHT SNOW WILL BECOME STEADIER AND HEAVIER LATE THIS AFTERNOON THROUGH SATURDAY. THE HEAVIEST SNOW IS EXPECTED TONIGHT TO SATURDAY MORNING. * SNOWFALL AMOUNTS...3 TO 6 INCHES IN MOST AREAS...WITH THE LOWEST AMOUNTS EXPECTED AROUND MAMMOTH. 10 TO 16 INCHES OVER THE HIGHER ELEVATIONS AND SOUTHWEST PORTIONS OF THE PARK. * WINDS...SOUTHWEST BECOMING NORTHWEST AND INCREASING TO 15 TO 25 MPH WITH HIGHER GUSTS MORE COMMON IN THE HIGHER ELEVATIONS. * IMPACTS...THE COMBINATION OF MODERATE TO HEAVY SNOW AND GUSTY WINDS WILL MAKE TRAVEL CONDITIONS DIFFICULT THIS AFTERNOON THROUGH SATURDAY AFTERNOON. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER WEATHER ADVISORY FOR SNOW AND BLOWING SNOW MEANS THAT VISIBILITIES WILL BE LIMITED DUE TO A COMBINATION OF FALLING AND BLOWING SNOW. USE CAUTION WHEN TRAVELING... ESPECIALLY IN OPEN AREAS. && $$
001 WWUS45 KRIW 300147 WSWRIW URGENT - WINTER WEATHER MESSAGE NATIONAL WEATHER SERVICE RIVERTON WY 647 PM MST FRI JAN 29 2016 ...SIGNIFICANT SNOW AND BLOWING SNOW OVER MUCH OF WESTERN AND SOUTHWESTERN WYOMING TONIGHT AND SATURDAY... .A POTENT PACIFIC WEATHER SYSTEM WILL MOVE INTO WESTERN WYOMING TONIGHT...BRINGING SIGNIFICANT SNOW TO MUCH OF SOUTHWESTERN AND WESTERN WYOMING. THE SYSTEM WILL PUSH AWAY FROM THE AREA DURING THE DAY SATURDAY...WITH SNOWFALL DECREASING IN COVERAGE AND INTENSITY SATURDAY AFTERNOON. WYZ012-024-301000- /O.CON.KRIW.WS.W.0001.000000T0000Z-160131T0000Z/ TETON AND GROS VENTRE MOUNTAINS-SALT RIVER AND WYOMING RANGES- 647 PM MST FRI JAN 29 2016 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 5 PM MST SATURDAY... * TIMING...SNOW...HEAVY AT TIMES...WILL CONTINUE ALL NIGHT. THE INTENSITY OF THE SNOW WILL DECREASE ON SATURDAY...BUT LIGHT SNOW WILL CONTINUE FOR MUCH OF THE DAY SATURDAY. * SNOWFALL AMOUNTS...12 TO 22 INCHES. * WIND/VISIBILITY...STRONG WEST WINDS IN COMBINATION WITH HEAVY SNOW WILL RESULT IN NEAR ZERO VISIBILITY ON RIDGES AT TIMES...BUT A QUARTER TO HALF MILE VISIBILITY WILL BE MORE COMMON. * IMPACTS...TRAVEL WILL BE DIFFICULT AT TIMES...ESPECIALLY OVER MOUNTAIN PASSES...INCLUDING TETON AND TOGWOTEE PASSES. BEFORE VENTURING OUT...PLEASE CHECK THE LATEST ROAD CONDITIONS AT WYOROAD.INFO OR BY DIALING 511. IF YOUR PLANS INCLUDE TRAVEL INTO THE BACK COUNTRY...PLEASE MONITOR JHAVALANCHE.ORG. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER STORM WARNING MEANS SIGNIFICANT AMOUNTS OF SNOW ALONG WITH STRONG WINDS ARE POSSIBLE. THIS WILL MAKE TRAVEL VERY HAZARDOUS AND DIFFICULT. && $$ WYZ013-301000- /O.CON.KRIW.WS.W.0001.000000T0000Z-160131T0000Z/ JACKSON HOLE- INCLUDING THE CITY OF...JACKSON 647 PM MST FRI JAN 29 2016 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 5 PM MST SATURDAY... * TIMING...PERIODS OF SNOW...HEAVY AT TIMES...WILL CONTINUE ALL NIGHT. THE INTENSITY OF THE SNOW WILL DECREASE ON SATURDAY...BUT LIGHT SNOW WILL CONTINUE FOR MUCH OF THE DAY SATURDAY. * SNOWFALL AMOUNTS...5 TO 10 INCHES...HIGHEST NORTH OF MOOSE... INCLUDING MORAN JUNCTION. * WIND/VISIBILITY...SOUTH TO SOUTHWEST 10 TO 25 MPH...IN COMBINATION WITH HEAVIER SNOW...WILL RESULT IN VISIBILITY UNDER A QUARTER MILE AT TIMES. * IMPACTS...ROADS ACROSS JACKSON HOLE WILL BE SLICK AND SNOW PACKED. TRAVEL OVER MOUNTAIN PASSES WILL BE DIFFICULT. BEFORE VENTURING OUT...PLEASE CHECK THE LATEST ROAD CONDITIONS AT WYOROAD.INFO OR BY DIALING 511. IF YOUR PLANS INCLUDE TRAVEL INTO THE BACK COUNTRY...PLEASE MONITOR JHAVALANCHE.ORG. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER STORM WARNING MEANS SIGNIFICANT AMOUNTS OF SNOW ALONG WITH STRONG WINDS ARE POSSIBLE. THIS WILL MAKE TRAVEL VERY HAZARDOUS AND EVEN DIFFICULT. && $$ WYZ023-301000- /O.CON.KRIW.WS.W.0001.000000T0000Z-160131T0000Z/ STAR VALLEY- INCLUDING THE CITIES OF...AFTON...ALPINE...STAR VALLEY RANCH... THAYNE 647 PM MST FRI JAN 29 2016 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 5 PM MST SATURDAY... * TIMING...PERIODS OF SNOW...HEAVY AT TIMES...WILL CONTINUE ALL NIGHT. THE INTENSITY OF THE SNOW WILL DECREASE ON SATURDAY...BUT LIGHT SNOW WILL CONTINUE FOR MUCH OF THE DAY SATURDAY. * SNOWFALL AMOUNTS...6 TO 11 INCHES...HIGHEST AROUND ALPINE AND EAST OF THAYNE. * WIND/VISIBILITY...SOUTH TO SOUTHWEST 10 TO 25 MPH...IN COMBINATION WITH HEAVIER SNOW...WILL RESULT IN VISIBILITY UNDER A QUARTER MILE AT TIMES. * IMPACTS...ROADS ACROSS STAR VALLEY WILL BE SLICK AND SNOW PACKED. TRAVEL OVER MOUNTAIN PASSES WILL BE DIFFICULT. BEFORE VENTURING OUT...PLEASE CHECK THE LATEST ROAD CONDITIONS AT WYOROAD.INFO OR BY DIALING 511. IF YOUR PLANS INCLUDE TRAVEL INTO THE BACK COUNTRY...PLEASE MONITOR JHAVALANCHE.ORG. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER STORM WARNING MEANS SIGNIFICANT AMOUNTS OF SNOW ALONG WITH STRONG WINDS ARE POSSIBLE. THIS WILL MAKE TRAVEL VERY HAZARDOUS AND EVEN DIFFICULT. && $$ WYZ027-301000- /O.CON.KRIW.WS.W.0001.000000T0000Z-160131T0000Z/ SOUTH LINCOLN COUNTY- INCLUDING THE CITIES OF...KEMMERER...COKEVILLE 647 PM MST FRI JAN 29 2016 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 5 PM MST SATURDAY... * TIMING...PERIODS OF SNOW...HEAVY AT TIMES...TONIGHT. THE INTENSITY AND COVERAGE OF THE SNOW WILL DECREASE SATURDAY...ESPECIALLY DURING THE AFTERNOON. * SNOWFALL AMOUNTS...5 TO 10 INCHES WEST OF HIGHWAY 189...2 TO 4 INCHES EAST. * WIND/VISIBILITY...BREEZY WESTERLY WINDS...IN COMBINATION WITH HEAVIER SNOW...WILL RESULT IN VISIBILITY UNDER A QUARTER MILE AT TIMES. * IMPACTS...ROADS WILL BECOME SLICK AND SNOW PACKED LATER TONIGHT. BEFORE VENTURING OUT...PLEASE CHECK THE LATEST ROAD CONDITIONS AT WYOROAD.INFO OR BY DIALING 511. IF YOUR PLANS INCLUDE TRAVEL INTO THE BACK COUNTRY...PLEASE MONITOR JHAVALANCHE.ORG. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER STORM WARNING MEANS SIGNIFICANT AMOUNTS OF SNOW ALONG WITH STRONG WINDS ARE POSSIBLE. THIS WILL MAKE TRAVEL VERY HAZARDOUS. && $$ WYZ014-025-301000- /O.CON.KRIW.WW.Y.0006.000000T0000Z-160131T0000Z/ WIND RIVER MOUNTAINS WEST-UPPER GREEN RIVER BASIN FOOTHILLS- INCLUDING THE CITY OF...PINEDALE 647 PM MST FRI JAN 29 2016 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 5 PM MST SATURDAY... * TIMING...LIGHT SNOW WILL BECOME STEADIER AND HEAVIER BY LATE EVENING. THE HEAVIEST SNOW IS EXPECTED FROM MIDNIGHT TO SUNRISE SATURDAY. THE SNOW WILL DECREASE IN COVERAGE AND INTENSITY DURING THE DAY SATURDAY. * SNOWFALL AMOUNTS...3 TO 6 INCHES OVER THE FOOTHILLS...UP TO 8 AROUND BONDURANT...AND 6 TO 12 INCHES IN THE MOUNTAINS...WITH THE HIGHER AMOUNTS WEST OF SOUTH PASS. * WIND/VISIBILITY...BREEZY WESTERLY WINDS IN COMBINATION OF HEAVIER SNOW WILL RESULT IN VISIBILITY UNDER A HALF MILE AT TIMES. * IMPACTS...ROADS WILL BECOME SLICK AND SNOW PACKED LATER TONIGHT. BEFORE VENTURING OUT...PLEASE CHECK THE LATEST ROAD CONDITIONS AT WYOROAD.INFO OR BY DIALING 511. IF YOUR PLANS INCLUDE TRAVEL INTO THE BACK COUNTRY...PLEASE MONITOR JHAVALANCHE.ORG. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER WEATHER ADVISORY FOR SNOW AND BLOWING SNOW MEANS THAT VISIBILITIES WILL BE LIMITED DUE TO A COMBINATION OF FALLING AND BLOWING SNOW. USE CAUTION WHEN TRAVELING... ESPECIALLY IN OPEN AREAS. && $$ WYZ028>030-301000- /O.CON.KRIW.WW.Y.0006.000000T0000Z-160131T0000Z/ ROCK SPRINGS AND GREEN RIVER-FLAMING GORGE-EAST SWEETWATER COUNTY- INCLUDING THE CITIES OF...ROCK SPRINGS...GREEN RIVER...WAMSUTTER 647 PM MST FRI JAN 29 2016 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 5 PM MST SATURDAY... * TIMING...AREAS OF LIGHT SNOW ARE EXPECTED THROUGH MIDNIGHT...BUT THE SNOW IS EXPECTED TO RAPIDLY INCREASE IN COVERAGE AND INTENSITY AFTER MIDNIGHT. THE HEAVIEST SNOWFALL IS EXPECTED TO OCCUR BETWEEN 3 AM AND NOON SATURDAY. THE SNOW IS THEN EXPECTED TO QUICKLY DECREASE IN COVERAGE AND INTENSITY BY MID TO LATE SATURDAY AFTERNOON. * SNOWFALL AMOUNTS...2 TO 5 INCHES. * WIND/VISIBILITY...SOUTHWEST BECOMING WEST AND INCREASING TO 15 TO 25 MPH WITH HIGHER GUSTS. THE COMBINATION OF WIND AND HEAVIER SNOW WILL RESULT IN VISIBILITY UNDER A QUARTER MILE...MAINLY IN OPEN AREAS. * IMPACTS...TRAVEL...ALONG INTERSTATE 80 AND OTHER HIGHWAYS COULD BECOME DIFFICULT AT TIMES LATE TONIGHT...BUT ESPECIALLY ON SATURDAY DUE TO A COMBINATION OF SNOW...BLOWING SNOW AND DRIFTING OF SNOW. BEFORE VENTURING OUT...PLEASE CHECK THE LATEST ROAD CONDITIONS AT WYOROAD.INFO OR BY DIALING 511. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER WEATHER ADVISORY FOR SNOW AND BLOWING SNOW MEANS THAT VISIBILITIES WILL BE LIMITED DUE TO A COMBINATION OF FALLING AND BLOWING SNOW. USE CAUTION WHEN TRAVELING... ESPECIALLY IN OPEN AREAS. && $$ WYZ001-301000- /O.CON.KRIW.WW.Y.0006.000000T0000Z-160131T0000Z/ YELLOWSTONE NATIONAL PARK- INCLUDING THE CITIES OF...LAKE...MAMMOTH...OLD FAITHFUL 647 PM MST FRI JAN 29 2016 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 5 PM MST SATURDAY... * TIMING...LIGHT SNOW WILL BECOME STEADIER AND HEAVIER LATE THIS AFTERNOON THROUGH SATURDAY. THE HEAVIEST SNOW IS EXPECTED TONIGHT TO SATURDAY MORNING. * SNOWFALL AMOUNTS...3 TO 6 INCHES IN MOST AREAS...WITH THE LOWEST AMOUNTS EXPECTED AROUND MAMMOTH. 10 TO 16 INCHES OVER THE HIGHER ELEVATIONS AND SOUTHWEST PORTIONS OF THE PARK. * WIND/VISIBILITY...BREEZY WESTERLY WINDS IN COMBINATION OF HEAVIER SNOW WILL RESULT IN VISIBILITY UNDER A HALF MILE AT TIMES. * IMPACTS...THE LOW VISIBILITY CAN BE VERY DISORIENTATING. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER WEATHER ADVISORY FOR SNOW AND BLOWING SNOW MEANS THAT VISIBILITIES WILL BE LIMITED DUE TO A COMBINATION OF FALLING AND BLOWING SNOW. USE CAUTION WHEN TRAVELING... ESPECIALLY IN OPEN AREAS. && $$ TEAM RIVERTON/21
470 WWUS45 KRIW 300821 WSWRIW URGENT - WINTER WEATHER MESSAGE NATIONAL WEATHER SERVICE RIVERTON WY 121 AM MST SAT JAN 30 2016 ...SIGNIFICANT SNOW AND BLOWING SNOW OVER MUCH OF WESTERN AND SOUTHWESTERN WYOMING TODAY... .A POTENT PACIFIC WEATHER SYSTEM WILL THROUGH WESTERN WYOMING TODAY...BRINGING SIGNIFICANT SNOW TO MUCH OF SOUTHWESTERN AND WESTERN WYOMING. THE SYSTEM WILL PUSH AWAY FROM THE AREA DURING THE DAY...WITH SNOWFALL DECREASING IN COVERAGE AND INTENSITY THIS AFTERNOON. WYZ012-024-302230- /O.CON.KRIW.WS.W.0001.000000T0000Z-160131T0000Z/ TETON AND GROS VENTRE MOUNTAINS-SALT RIVER AND WYOMING RANGES- 121 AM MST SAT JAN 30 2016 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 5 PM MST THIS AFTERNOON... * TIMING...SNOW...HEAVY AT TIMES...WILL CONTINUE THROUGH THE MORNING. THE INTENSITY OF THE SNOW WILL DECREASE THIS AFTERNOON...BUT LIGHT SNOW WILL CONTINUE INTO THE EVENING HOURS. * SNOWFALL AMOUNTS...12 TO 22 INCHES. * WIND/VISIBILITY...STRONG WEST WINDS IN COMBINATION WITH HEAVY SNOW WILL RESULT IN NEAR ZERO VISIBILITY ON RIDGES AT TIMES... BUT A QUARTER TO HALF MILE VISIBILITY WILL BE MORE COMMON. * IMPACTS...TRAVEL WILL BE DIFFICULT AT TIMES...ESPECIALLY OVER MOUNTAIN PASSES...INCLUDING TETON AND TOGWOTEE PASSES. BEFORE VENTURING OUT...PLEASE CHECK THE LATEST ROAD CONDITIONS AT WYOROAD.INFO OR BY DIALING 511. IF YOUR PLANS INCLUDE TRAVEL INTO THE BACK COUNTRY...PLEASE MONITOR JHAVALANCHE.ORG. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER STORM WARNING MEANS SIGNIFICANT AMOUNTS OF SNOW ALONG WITH STRONG WINDS ARE POSSIBLE. THIS WILL MAKE TRAVEL VERY HAZARDOUS AND DIFFICULT. && $$ WYZ013-302230- /O.CON.KRIW.WS.W.0001.000000T0000Z-160131T0000Z/ JACKSON HOLE- INCLUDING THE CITY OF...JACKSON 121 AM MST SAT JAN 30 2016 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 5 PM MST THIS AFTERNOON... * TIMING...SNOW...HEAVY AT TIMES...WILL CONTINUE THROUGH THE MORNING. THE INTENSITY OF THE SNOW WILL DECREASE THIS AFTERNOON...BUT LIGHT SNOW WILL CONTINUE INTO THE EVENING HOURS. * SNOWFALL AMOUNTS...5 TO 10 INCHES...HIGHEST NORTH OF MOOSE... INCLUDING MORAN JUNCTION. * WIND/VISIBILITY...SOUTH TO SOUTHWEST 10 TO 25 MPH...IN COMBINATION WITH HEAVIER SNOW...WILL RESULT IN VISIBILITY UNDER A QUARTER MILE AT TIMES. * IMPACTS...ROADS ACROSS JACKSON HOLE WILL BE SLICK AND SNOW PACKED. TRAVEL OVER MOUNTAIN PASSES WILL BE DIFFICULT. BEFORE VENTURING OUT...PLEASE CHECK THE LATEST ROAD CONDITIONS AT WYOROAD.INFO OR BY DIALING 511. IF YOUR PLANS INCLUDE TRAVEL INTO THE BACK COUNTRY...PLEASE MONITOR JHAVALANCHE.ORG. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER STORM WARNING MEANS SIGNIFICANT AMOUNTS OF SNOW ALONG WITH STRONG WINDS ARE POSSIBLE. THIS WILL MAKE TRAVEL VERY HAZARDOUS AND EVEN DIFFICULT. && $$ WYZ023-302230- /O.CON.KRIW.WS.W.0001.000000T0000Z-160131T0000Z/ STAR VALLEY- INCLUDING THE CITIES OF...AFTON...ALPINE...STAR VALLEY RANCH... THAYNE 121 AM MST SAT JAN 30 2016 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 5 PM MST THIS AFTERNOON... * TIMING...SNOW...HEAVY AT TIMES AND MIXED WITH RAIN AT TIMES AROUND AFTON AHEAD OF THE FRONT EARLY THIS MORNING...WILL CONTINUE. THE INTENSITY OF THE SNOW WILL DECREASE THIS AFTERNOON...BUT LIGHT SNOW WILL CONTINUE INTO THE EVENING HOURS. * SNOWFALL AMOUNTS...6 TO 11 INCHES...HIGHEST AROUND ALPINE AND EAST OF THAYNE. * WIND/VISIBILITY...SOUTH TO SOUTHWEST 10 TO 25 MPH...IN COMBINATION WITH HEAVIER SNOW...WILL RESULT IN VISIBILITY UNDER A QUARTER MILE AT TIMES. * IMPACTS...ROADS ACROSS STAR VALLEY WILL BE SLICK AND SNOW PACKED. TRAVEL OVER MOUNTAIN PASSES WILL BE DIFFICULT. BEFORE VENTURING OUT...PLEASE CHECK THE LATEST ROAD CONDITIONS AT WYOROAD.INFO OR BY DIALING 511. IF YOUR PLANS INCLUDE TRAVEL INTO THE BACK COUNTRY...PLEASE MONITOR JHAVALANCHE.ORG. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER STORM WARNING MEANS SIGNIFICANT AMOUNTS OF SNOW ALONG WITH STRONG WINDS ARE POSSIBLE. THIS WILL MAKE TRAVEL VERY HAZARDOUS AND EVEN DIFFICULT. && $$ WYZ027-302230- /O.CON.KRIW.WS.W.0001.000000T0000Z-160131T0000Z/ SOUTH LINCOLN COUNTY- INCLUDING THE CITIES OF...KEMMERER...COKEVILLE 121 AM MST SAT JAN 30 2016 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 5 PM MST THIS AFTERNOON... * TIMING...SNOW...MIXING WITH RAIN AT TIMES EARLY THIS MORNING AHEAD OF THE FRONT...WILL CONTINUE. THE INTENSITY OF THE SNOW WILL DECREASE THIS AFTERNOON...BUT LIGHT SNOW WILL CONTINUE INTO THE EVENING HOURS. * SNOWFALL AMOUNTS...3 TO 6 INCHES WEST OF HIGHWAY 189...1 TO 3 INCHES EAST. * WIND/VISIBILITY...BREEZY WESTERLY WINDS...IN COMBINATION WITH HEAVIER SNOW...WILL RESULT IN VISIBILITY UNDER A QUARTER MILE AT TIMES. * IMPACTS...ROADS WILL BECOME SLICK AND ICY...AS WELL AS SNOW PACKED IN SPOTS. BEFORE VENTURING OUT...PLEASE CHECK THE LATEST ROAD CONDITIONS AT WYOROAD.INFO OR BY DIALING 511. IF YOUR PLANS INCLUDE TRAVEL INTO THE BACK COUNTRY...PLEASE MONITOR JHAVALANCHE.ORG. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER STORM WARNING MEANS SIGNIFICANT AMOUNTS OF SNOW ALONG WITH STRONG WINDS ARE POSSIBLE. THIS WILL MAKE TRAVEL VERY HAZARDOUS. && $$ WYZ014-025-302230- /O.CON.KRIW.WW.Y.0006.000000T0000Z-160131T0000Z/ WIND RIVER MOUNTAINS WEST-UPPER GREEN RIVER BASIN FOOTHILLS- INCLUDING THE CITY OF...PINEDALE 121 AM MST SAT JAN 30 2016 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 5 PM MST THIS AFTERNOON... * TIMING...SNOW...HEAVY AT TIMES...WILL CONTINUE THROUGH THE MORNING. THE INTENSITY OF THE SNOW WILL DECREASE THIS AFTERNOON...BUT LIGHT SNOW WILL CONTINUE INTO THE EVENING HOURS. * SNOWFALL AMOUNTS...3 TO 6 INCHES OVER THE FOOTHILLS...UP TO 8 AROUND BONDURANT...AND 6 TO 12 INCHES IN THE MOUNTAINS...WITH THE HIGHER AMOUNTS WEST OF SOUTH PASS. * WIND/VISIBILITY...BREEZY WESTERLY WINDS GUSTING TO 65 MPH AT TIMES IN THE WIND RIVERS IN COMBINATION OF HEAVIER SNOW WILL RESULT IN VISIBILITY UNDER A HALF MILE AT TIMES. * IMPACTS...ROADS WILL BECOME SLICK AND SNOW PACKED. BEFORE VENTURING OUT...PLEASE CHECK THE LATEST ROAD CONDITIONS AT WYOROAD.INFO OR BY DIALING 511. IF YOUR PLANS INCLUDE TRAVEL INTO THE BACK COUNTRY...PLEASE MONITOR JHAVALANCHE.ORG. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER WEATHER ADVISORY FOR SNOW AND BLOWING SNOW MEANS THAT VISIBILITIES WILL BE LIMITED DUE TO A COMBINATION OF FALLING AND BLOWING SNOW. USE CAUTION WHEN TRAVELING... ESPECIALLY IN OPEN AREAS. && $$ WYZ028>030-302230- /O.CON.KRIW.WW.Y.0006.000000T0000Z-160131T0000Z/ ROCK SPRINGS AND GREEN RIVER-FLAMING GORGE-EAST SWEETWATER COUNTY- INCLUDING THE CITIES OF...ROCK SPRINGS...GREEN RIVER...WAMSUTTER 121 AM MST SAT JAN 30 2016 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 5 PM MST THIS AFTERNOON... * TIMING...HEAVIEST SNOWFALL IS EXPECTED TO OCCUR BEFORE NOON. THE SNOW IS THEN EXPECTED TO QUICKLY DECREASE IN COVERAGE AND INTENSITY BY MID TO LATE AFTERNOON. * SNOWFALL AMOUNTS...2 TO 5 INCHES. * WIND/VISIBILITY...SOUTHWEST BECOMING WEST AND INCREASING TO 15 TO 25 MPH WITH HIGHER GUSTS. THE COMBINATION OF WIND AND HEAVIER SNOW WILL RESULT IN VISIBILITY UNDER A QUARTER MILE... MAINLY IN OPEN AREAS. * IMPACTS...TRAVEL...ALONG INTERSTATE 80 AND AREA HIGHWAYS COULD BECOME DIFFICULT AT TIMES LATE TONIGHT...BUT ESPECIALLY ON SATURDAY DUE TO A COMBINATION OF SNOW...BLOWING SNOW AND DRIFTING OF SNOW. BEFORE VENTURING OUT...PLEASE CHECK THE LATEST ROAD CONDITIONS AT WYOROAD.INFO OR BY DIALING 511. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER WEATHER ADVISORY FOR SNOW AND BLOWING SNOW MEANS THAT VISIBILITIES WILL BE LIMITED DUE TO A COMBINATION OF FALLING AND BLOWING SNOW. USE CAUTION WHEN TRAVELING... ESPECIALLY IN OPEN AREAS. && $$ WYZ001-302230- /O.CON.KRIW.WW.Y.0006.000000T0000Z-160131T0000Z/ YELLOWSTONE NATIONAL PARK- INCLUDING THE CITIES OF...LAKE...MAMMOTH...OLD FAITHFUL 121 AM MST SAT JAN 30 2016 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 5 PM MST THIS AFTERNOON... * TIMING...SNOW...HEAVY AT TIMES...WILL CONTINUE THROUGH THE MORNING. THE INTENSITY OF THE SNOW WILL DECREASE THIS AFTERNOON...BUT LIGHT SNOW WILL CONTINUE INTO THE EVENING HOURS. * SNOWFALL AMOUNTS...3 TO 6 INCHES IN MOST AREAS...WITH THE LOWEST AMOUNTS EXPECTED AROUND MAMMOTH. 10 TO 16 INCHES OVER THE HIGHER ELEVATIONS AND SOUTHWEST PORTIONS OF THE PARK. * WIND/VISIBILITY...BREEZY WESTERLY WINDS IN COMBINATION OF HEAVIER SNOW WILL RESULT IN VISIBILITY UNDER A HALF MILE AT TIMES. * IMPACTS...THE LOW VISIBILITY CAN BE VERY DISORIENTATING. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER WEATHER ADVISORY FOR SNOW AND BLOWING SNOW MEANS THAT VISIBILITIES WILL BE LIMITED DUE TO A COMBINATION OF FALLING AND BLOWING SNOW. USE CAUTION WHEN TRAVELING... ESPECIALLY IN OPEN AREAS. && $$
509 WWUS45 KRIW 301659 WSWRIW URGENT - WINTER WEATHER MESSAGE NATIONAL WEATHER SERVICE RIVERTON WY 959 AM MST SAT JAN 30 2016 ...SIGNIFICANT SNOW AND BLOWING SNOW OVER MUCH OF WESTERN AND SOUTHWESTERN WYOMING TODAY... .A POTENT PACIFIC WEATHER SYSTEM WILL MOVE THROUGH WESTERN WYOMING TODAY...BRINGING SIGNIFICANT SNOW TO MUCH OF SOUTHWESTERN AND WESTERN WYOMING. THE SYSTEM WILL MOVE EAST OF THE AREA LATER THIS AFTERNOON WITH SNOWFALL DECREASING IN COVERAGE AND INTENSITY. WYZ012-024-310000- /O.CON.KRIW.WS.W.0001.000000T0000Z-160131T0000Z/ TETON AND GROS VENTRE MOUNTAINS-SALT RIVER AND WYOMING RANGES- 959 AM MST SAT JAN 30 2016 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 5 PM MST THIS AFTERNOON... * TIMING...THE INTENSITY OF THE SNOW WILL DECREASE THIS AFTERNOON...BUT LIGHT SNOW WILL CONTINUE INTO THE EVENING HOURS. * SNOWFALL AMOUNTS...12 TO 22 INCHES. * WIND/VISIBILITY...STRONG WEST WINDS IN COMBINATION WITH HEAVY SNOW WILL RESULT IN NEAR ZERO VISIBILITY ON RIDGES AT TIMES... BUT A QUARTER TO HALF MILE VISIBILITY WILL BE MORE COMMON. * IMPACTS...TRAVEL WILL BE DIFFICULT AT TIMES...ESPECIALLY OVER MOUNTAIN PASSES...INCLUDING TETON AND TOGWOTEE PASSES. BEFORE VENTURING OUT...PLEASE CHECK THE LATEST ROAD CONDITIONS AT WYOROAD.INFO OR BY DIALING 511. IF YOUR PLANS INCLUDE TRAVEL INTO THE BACK COUNTRY...PLEASE MONITOR JHAVALANCHE.ORG. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER STORM WARNING MEANS SIGNIFICANT AMOUNTS OF SNOW ALONG WITH STRONG WINDS ARE POSSIBLE. THIS WILL MAKE TRAVEL VERY HAZARDOUS AND DIFFICULT. && $$ WYZ013-310000- /O.CON.KRIW.WS.W.0001.000000T0000Z-160131T0000Z/ JACKSON HOLE- INCLUDING THE CITY OF...JACKSON 959 AM MST SAT JAN 30 2016 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 5 PM MST THIS AFTERNOON... * TIMING...THE INTENSITY OF THE SNOW WILL DECREASE THIS AFTERNOON...BUT LIGHT SNOW WILL CONTINUE INTO THE EVENING HOURS. * SNOWFALL AMOUNTS...5 TO 10 INCHES...HIGHEST NORTH OF MOOSE... INCLUDING MORAN JUNCTION. * WIND/VISIBILITY...SOUTH TO SOUTHWEST 10 TO 25 MPH...IN COMBINATION WITH HEAVIER SNOW...WILL RESULT IN VISIBILITY UNDER A QUARTER MILE AT TIMES. * IMPACTS...ROADS ACROSS JACKSON HOLE WILL BE SLICK AND SNOW PACKED. TRAVEL OVER MOUNTAIN PASSES WILL BE DIFFICULT. BEFORE VENTURING OUT...PLEASE CHECK THE LATEST ROAD CONDITIONS AT WYOROAD.INFO OR BY DIALING 511. IF YOUR PLANS INCLUDE TRAVEL INTO THE BACK COUNTRY...PLEASE MONITOR JHAVALANCHE.ORG. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER STORM WARNING MEANS SIGNIFICANT AMOUNTS OF SNOW ALONG WITH STRONG WINDS ARE POSSIBLE. THIS WILL MAKE TRAVEL VERY HAZARDOUS AND EVEN DIFFICULT. && $$ WYZ023-310000- /O.CON.KRIW.WS.W.0001.000000T0000Z-160131T0000Z/ STAR VALLEY- INCLUDING THE CITIES OF...AFTON...ALPINE...STAR VALLEY RANCH... THAYNE 959 AM MST SAT JAN 30 2016 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 5 PM MST THIS AFTERNOON... * TIMING...THE INTENSITY OF THE SNOW WILL DECREASE THIS AFTERNOON...BUT LIGHT SNOW WILL CONTINUE INTO THE EVENING HOURS. * SNOWFALL AMOUNTS...6 TO 11 INCHES...HIGHEST AROUND ALPINE AND EAST OF THAYNE. * WIND/VISIBILITY...SOUTH TO SOUTHWEST 10 TO 25 MPH...IN COMBINATION WITH HEAVIER SNOW...WILL RESULT IN VISIBILITY UNDER A QUARTER MILE AT TIMES. * IMPACTS...ROADS ACROSS STAR VALLEY WILL BE SLICK AND SNOW PACKED. TRAVEL OVER MOUNTAIN PASSES WILL BE DIFFICULT. BEFORE VENTURING OUT...PLEASE CHECK THE LATEST ROAD CONDITIONS AT WYOROAD.INFO OR BY DIALING 511. IF YOUR PLANS INCLUDE TRAVEL INTO THE BACK COUNTRY...PLEASE MONITOR JHAVALANCHE.ORG. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER STORM WARNING MEANS SIGNIFICANT AMOUNTS OF SNOW ALONG WITH STRONG WINDS ARE POSSIBLE. THIS WILL MAKE TRAVEL VERY HAZARDOUS AND EVEN DIFFICULT. && $$ WYZ027-310000- /O.CON.KRIW.WS.W.0001.000000T0000Z-160131T0000Z/ SOUTH LINCOLN COUNTY- INCLUDING THE CITIES OF...KEMMERER...COKEVILLE 959 AM MST SAT JAN 30 2016 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 5 PM MST THIS AFTERNOON... * TIMING...THE INTENSITY OF THE SNOW WILL DECREASE THIS AFTERNOON...BUT LIGHT SNOW WILL CONTINUE INTO THE EVENING HOURS. * SNOWFALL AMOUNTS...3 TO 6 INCHES WEST OF HIGHWAY 189...1 TO 3 INCHES EAST. * WIND/VISIBILITY...BREEZY WESTERLY WINDS...IN COMBINATION WITH HEAVIER SNOW...WILL RESULT IN VISIBILITY UNDER A QUARTER MILE AT TIMES. * IMPACTS...ROADS WILL BECOME SLICK AND ICY...AS WELL AS SNOW PACKED IN SPOTS. BEFORE VENTURING OUT...PLEASE CHECK THE LATEST ROAD CONDITIONS AT WYOROAD.INFO OR BY DIALING 511. IF YOUR PLANS INCLUDE TRAVEL INTO THE BACK COUNTRY...PLEASE MONITOR JHAVALANCHE.ORG. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER STORM WARNING MEANS SIGNIFICANT AMOUNTS OF SNOW ALONG WITH STRONG WINDS ARE POSSIBLE. THIS WILL MAKE TRAVEL VERY HAZARDOUS. && $$ WYZ014-025-310000- /O.CON.KRIW.WW.Y.0006.000000T0000Z-160131T0000Z/ WIND RIVER MOUNTAINS WEST-UPPER GREEN RIVER BASIN FOOTHILLS- INCLUDING THE CITY OF...PINEDALE 959 AM MST SAT JAN 30 2016 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 5 PM MST THIS AFTERNOON... * TIMING..THE INTENSITY OF THE SNOW WILL DECREASE THIS AFTERNOON...BUT LIGHT SNOW WILL CONTINUE INTO THE EVENING HOURS. * SNOWFALL AMOUNTS...3 TO 6 INCHES OVER THE FOOTHILLS...UP TO 8 AROUND BONDURANT...AND 6 TO 12 INCHES IN THE MOUNTAINS...WITH THE HIGHER AMOUNTS WEST OF SOUTH PASS. * WIND/VISIBILITY...BREEZY WESTERLY WINDS GUSTING TO 65 MPH AT TIMES IN THE WIND RIVERS IN COMBINATION OF HEAVIER SNOW WILL RESULT IN VISIBILITY UNDER A HALF MILE AT TIMES. * IMPACTS...ROADS WILL BECOME SLICK AND SNOW PACKED. BEFORE VENTURING OUT...PLEASE CHECK THE LATEST ROAD CONDITIONS AT WYOROAD.INFO OR BY DIALING 511. IF YOUR PLANS INCLUDE TRAVEL INTO THE BACK COUNTRY...PLEASE MONITOR JHAVALANCHE.ORG. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER WEATHER ADVISORY FOR SNOW AND BLOWING SNOW MEANS THAT VISIBILITIES WILL BE LIMITED DUE TO A COMBINATION OF FALLING AND BLOWING SNOW. USE CAUTION WHEN TRAVELING... ESPECIALLY IN OPEN AREAS. && $$ WYZ028>030-310000- /O.CON.KRIW.WW.Y.0006.000000T0000Z-160131T0000Z/ ROCK SPRINGS AND GREEN RIVER-FLAMING GORGE-EAST SWEETWATER COUNTY- INCLUDING THE CITIES OF...ROCK SPRINGS...GREEN RIVER...WAMSUTTER 959 AM MST SAT JAN 30 2016 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 5 PM MST THIS AFTERNOON... * TIMING...THE SNOW IS THEN EXPECTED TO QUICKLY DECREASE IN COVERAGE AND INTENSITY BY MID TO LATE AFTERNOON. * SNOWFALL AMOUNTS...2 TO 5 INCHES. * WIND/VISIBILITY...SOUTHWEST BECOMING WEST AND INCREASING TO 15 TO 25 MPH WITH HIGHER GUSTS. THE COMBINATION OF WIND AND HEAVIER SNOW WILL RESULT IN VISIBILITY UNDER A QUARTER MILE... MAINLY IN OPEN AREAS. * IMPACTS...TRAVEL...ALONG INTERSTATE 80 AND AREA HIGHWAYS COULD BECOME DIFFICULT AT TIMES LATE TONIGHT...BUT ESPECIALLY ON SATURDAY DUE TO A COMBINATION OF SNOW...BLOWING SNOW AND DRIFTING OF SNOW. BEFORE VENTURING OUT...PLEASE CHECK THE LATEST ROAD CONDITIONS AT WYOROAD.INFO OR BY DIALING 511. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER WEATHER ADVISORY FOR SNOW AND BLOWING SNOW MEANS THAT VISIBILITIES WILL BE LIMITED DUE TO A COMBINATION OF FALLING AND BLOWING SNOW. USE CAUTION WHEN TRAVELING... ESPECIALLY IN OPEN AREAS. && $$ WYZ001-310000- /O.CON.KRIW.WW.Y.0006.000000T0000Z-160131T0000Z/ YELLOWSTONE NATIONAL PARK- INCLUDING THE CITIES OF...LAKE...MAMMOTH...OLD FAITHFUL 959 AM MST SAT JAN 30 2016 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 5 PM MST THIS AFTERNOON... * TIMING...THE INTENSITY OF THE SNOW WILL DECREASE THIS AFTERNOON...BUT LIGHT SNOW WILL CONTINUE INTO THE EVENING HOURS. * SNOWFALL AMOUNTS...3 TO 6 INCHES IN MOST AREAS...WITH THE LOWEST AMOUNTS EXPECTED AROUND MAMMOTH. 10 TO 16 INCHES OVER THE HIGHER ELEVATIONS AND SOUTHWEST PORTIONS OF THE PARK. * WIND/VISIBILITY...BREEZY WESTERLY WINDS IN COMBINATION OF HEAVIER SNOW WILL RESULT IN VISIBILITY UNDER A HALF MILE AT TIMES. * IMPACTS...THE LOW VISIBILITY CAN BE VERY DISORIENTATING. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WINTER WEATHER ADVISORY FOR SNOW AND BLOWING SNOW MEANS THAT VISIBILITIES WILL BE LIMITED DUE TO A COMBINATION OF FALLING AND BLOWING SNOW. USE CAUTION WHEN TRAVELING... ESPECIALLY IN OPEN AREAS. && $$
325 WWUS45 KRIW 302342 WSWRIW URGENT - WINTER WEATHER MESSAGE NATIONAL WEATHER SERVICE RIVERTON WY 442 PM MST SAT JAN 30 2016 WYZ012-024-310045- /O.EXP.KRIW.WS.W.0001.000000T0000Z-160131T0000Z/ TETON AND GROS VENTRE MOUNTAINS-SALT RIVER AND WYOMING RANGES- 442 PM MST SAT JAN 30 2016 ...WINTER STORM WARNING WILL EXPIRE AT 5 PM MST THIS AFTERNOON... A TOTAL OF ONE TO TWO FEET OF SNOW OCCURRED ACROSS THE FAR WESTERN MOUNTAINS FRIDAY AND SATURDAY. ALTHOUGH THE WARNING WILL BE ALLOWED TO EXPIRE...ROADS WILL REMAIN SLICK AND HAZARDOUS TONIGHT ESPECIALLY OVER TETON AND TOGWOTEE MOUNTAIN PASSES. SNOW SHOWERS TONIGHT WILL RESULT IN AN ADDITIONAL 2 TO 5 INCHES IN THE MOUNTAINS...AND UP TO AN INCH IN THE LOWER ELEVATIONS. $$ WYZ013-310045- /O.EXP.KRIW.WS.W.0001.000000T0000Z-160131T0000Z/ JACKSON HOLE- INCLUDING THE CITY OF...JACKSON 442 PM MST SAT JAN 30 2016 ...WINTER STORM WARNING WILL EXPIRE AT 5 PM MST THIS AFTERNOON... A TOTAL OF ONE TO TWO FEET OF SNOW OCCURRED ACROSS THE FAR WESTERN MOUNTAINS...WITH 5 TO 12 INCHES ACROSS JACKSON HOLE DURING FRIDAY AND SATURDAY. ALTHOUGH THE WARNING WILL BE ALLOWED TO EXPIRE...ROADS WILL REMAIN SLICK AND HAZARDOUS TONIGHT...ESPECIALLY OVER TETON AND TOGWOTEE MOUNTAIN PASSES. SNOW SHOWERS TONIGHT WILL RESULT IN AN ADDITIONAL 2 TO 5 INCHES IN THE MOUNTAINS...AND UP TO AN INCH IN THE LOWER ELEVATIONS. $$ WYZ023-310045- /O.EXP.KRIW.WS.W.0001.000000T0000Z-160131T0000Z/ STAR VALLEY- INCLUDING THE CITIES OF...AFTON...ALPINE...STAR VALLEY RANCH... THAYNE 442 PM MST SAT JAN 30 2016 ...WINTER STORM WARNING WILL EXPIRE AT 5 PM MST THIS AFTERNOON... A TOTAL OF ONE TO TWO FEET OF SNOW OCCURRED ACROSS THE FAR WESTERN MOUNTAINS...WITH 4 TO 8 INCHES ACROSS STAR VALLEY DURING FRIDAY AND SATURDAY. ALTHOUGH THE WARNING WILL BE ALLOWED TO EXPIRE...ROADS WILL REMAIN SLICK AND HAZARDOUS TONIGHT. SNOW SHOWERS TONIGHT WILL RESULT IN AN ADDITIONAL 1 TO 3 INCHES IN THE MOUNTAINS...AND UP TO AN INCH IN THE LOWER ELEVATIONS. $$ WYZ027-310045- /O.EXP.KRIW.WS.W.0001.000000T0000Z-160131T0000Z/ SOUTH LINCOLN COUNTY- INCLUDING THE CITIES OF...KEMMERER...COKEVILLE 442 PM MST SAT JAN 30 2016 ...WINTER STORM WARNING WILL EXPIRE AT 5 PM MST THIS AFTERNOON... ALTHOUGH THERE WILL BE SCATTERED SNOW SHOWERS THIS EVENING...ADDITIONAL SNOWFALL IS EXPECTED TO BE AN INCH OR LESS. THUS...THE WINTER STORM WARNING WILL BE ALLOWED TO EXPIRE AT 5 PM. $$ WYZ014-025-310045- /O.EXP.KRIW.WW.Y.0006.000000T0000Z-160131T0000Z/ WIND RIVER MOUNTAINS WEST-UPPER GREEN RIVER BASIN FOOTHILLS- INCLUDING THE CITY OF...PINEDALE 442 PM MST SAT JAN 30 2016 ...WINTER WEATHER ADVISORY WILL EXPIRE AT 5 PM MST THIS AFTERNOON... ALTHOUGH THERE WILL BE SCATTERED SNOW SHOWERS THIS EVENING...ADDITIONAL SNOWFALL IS EXPECTED TO BE AN INCH OR LESS. THUS...THE WINTER WEATHER ADVISORY WILL BE ALLOWED TO EXPIRE AT 5 PM. $$ WYZ028>030-310045- /O.EXP.KRIW.WW.Y.0006.000000T0000Z-160131T0000Z/ ROCK SPRINGS AND GREEN RIVER-FLAMING GORGE-EAST SWEETWATER COUNTY- INCLUDING THE CITIES OF...ROCK SPRINGS...GREEN RIVER...WAMSUTTER 442 PM MST SAT JAN 30 2016 ...WINTER WEATHER ADVISORY WILL EXPIRE AT 5 PM MST THIS AFTERNOON... ALTHOUGH THERE WILL BE SCATTERED SNOW SHOWERS THIS EVENING...ADDITIONAL SNOWFALL IS EXPECTED TO BE AN INCH OR LESS. THUS...THE WINTER WEATHER ADVISORY WILL BE ALLOWED TO EXPIRE AT 5 PM. $$ WYZ001-310045- /O.EXP.KRIW.WW.Y.0006.000000T0000Z-160131T0000Z/ YELLOWSTONE NATIONAL PARK- INCLUDING THE CITIES OF...LAKE...MAMMOTH...OLD FAITHFUL 442 PM MST SAT JAN 30 2016 ...WINTER WEATHER ADVISORY WILL EXPIRE AT 5 PM MST THIS AFTERNOON... ALTHOUGH THERE WILL BE SCATTERED SNOW SHOWERS THIS EVENING...ADDITIONAL SNOWFALL IS EXPECTED TO BE AN INCH OR LESS. THUS...THE WINTER WEATHER ADVISORY WILL BE ALLOWED TO EXPIRE AT 5 PM. $$ 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 Jan 28, 11:16 AM MST, 2 hours 35 minutes earlier.
Area forecast discussion, Jan 28, 11:16 AM MST, 2 hours 35 minutes before
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE RIVERTON WY 1116 AM MST THU JAN 28 2016 .SHORT TERM...THURSDAY THROUGH SATURDAY NIGHT WITH THE ACTIVE WEATHER PATTERN AND THE CONTRAST IN WEATHER...WE WILL SPLIT THE FORECAST BETWEEN WEST AND EAST OF THE DIVIDE THIS MORNING. WEST OF THE DIVIDE...WE WILL NOT TALK ABOUT TODAY AS IT LOOKS TO BE A MAINLY DRY AND SEASONABLE DAY. THE ACTIVE WEATHER LOOKS TO START TONIGHT AS THE FIRST SHOT OF SNOW WITH A SHORTWAVE MOVING ACROSS THE AREA. MOST OF THE SNOW LOOKS TO HOLD OFF UNTIL AFTER 06Z. THE MODELS HAVE BACKED OFF ON AMOUNTS AND THIS FIRST SHOT LOOKS TO BE A FAIRLY QUICK HITTER WITH MOST OF THE STEADY PRECIPITATION HEADING OUT BY 15Z FRIDAY. FRIDAY AT THIS POINT DOES NOT LOOK TO BAD AS THE AREA LOOKS TO BE IN BETWEEN SYSTEMS. IN ADDITION...WITH SOME WARMER AIR MOVING IN AHEAD OF THE STRONGER WAVE...700 MILLIBAR TEMPERATURES MAY CLIMB TO MINUS 3...THERE COULD BE SOME MIXING WITH RAIN IN THE VALLEYS FRIDAY AFTERNOON. WE ID LOWER QPF AND SNOWFALL AMOUNT SOMEWHAT BECAUSE OF THIS. THE MAIN EVENT STILL LOOKS TO BE FRIDAY NIGHT. A COMBINATION OF GOOD ISENTROPIC LIFT...A PASSING TROUGH...A COLD FRONTAL PASSAGE AND A GOOD STREAM OF MOISTURE WILL COMBINE TO LIKELY BRING GOOD AMOUNTS OF SNOW TO THE AREA. THERE ARE STILL SOME DIFFERENCES IN THE MODELS IN THE DETAILS. THE NAM KEEPS THE BEST QPF TO THE SOUTH OF THE STATE. SNOW LOVERS WOULD LIKE THE GFS WHICH SHOWS A HALF AN INCH OF QPF ACROSS THE WESTERN MOUNTAINS. FOR NOW...WE SPLIT THE MIDDLE TRENDING A BIT TOWARD THE HIGHER AMOUNTS. THE BEST DYNAMICS AND UPPER LEVEL SUPPORT SHOULD SHIFT EAST OF THE AREA ON SATURDAY BUT WITH A DECENT AMOUNT OF MOISTURE REMAINING AND FAVORABLE WEST TO NORTHWEST FLOW CONTINUING THERE WILL STILL BE SNOW CONTINUING THROUGH THE DAY. A GUSTY WIND WILL CONTINUE THROUGH THE DAY AS WELL. AS A RESULT...WE HAVE HOISTED A WINTER STORM WATCH FROM FRIDAY NIGHT THROUGH SATURDAY NIGHT. NORTHWEST FLOW COULD KEEP GOOD SNOW GOING IN A PLACE LIKE ALPINE INTO SATURDAY NIGHT AS WELL. AS FOR TEMPERATURES...THEY WILL FALL SOMEWHAT BEHIND THE FRONT BUT WITH THE PACIFIC ORIGIN OF THE SYSTEM NOTHING TOO COLD. EAST OF THE DIVIDE...THE MAIN FOCUS HERE SHIFTS TO WIND. WITH AN APPROACHING SHORTWAVE THE PRESSURE GRADIENT WILL TIGHTEN ACROSS THE AREA. THE STRONGEST CONTINUE TO BE IN THE VICINITY OF CLARK AND THE CODY FOOTHILLS WITH THE MODELS SHOWING UP TO 60 KNOTS AT 700 MILLIBARS. WITH SOME MOUNTAIN WAVE ACTIVITY LIKELY...WE UPGRADED THE WATCH TO A WARNING THERE. THE WIND THREAT HERE SHOULD END WHEN COLD ADVECTION BEGINS FRIDAY MORNING. THE WATCH ACROSS NATRONA COUNTY IS MORE BORDERLINE. LATEST MODEL RUNS ARE SHOWING 700 MILLIBAR WINDS OF 40 TO 45 KNOTS. IN ADDITION...MOS GUIDANCE IS BELOW HIGH WIND CRITERIA. IT COULD BLOW BRIEF HIGH WIND AT A PLACE LIKE FALES ROCK WHERE THERE IS NOTHING BUT DEER. THE BEST CHANCE WITH THIS EVENT MAY BE THURSDAY NIGHT AS A TROUGH AXIS PASSES THROUGH AND INCREASES MIXING. FOR THIS WATCH...WE PUSHED THE START TIME BACK TO 5 PM AND PUNTED...WILL LET THE DAY SHIFT MAKE THE CALL ON THIS ONE. THE AFOREMENTIONED SHORTWAVE WILL MOVE ACROSS TONIGHT. ALTHOUGH ALMOST ALL THE PRECIPITATION WITH THIS SHOULD STAY IN MONTANA WITH THE BEST UPPER LEVEL SUPPORT...WE DID ADD SOME SLIGHT POPS TO THE NORTHEAST FOR A BIT OF SNOW LATE TONIGHT INTO FRIDAY MORNING. MOST OF FRIDAY LOOKS DRY BUT INCREASINGLY BREEZY TO WINDY. THIS ALSO LOOKS LIKE THE WARMEST DAY OF THE WEEK. INCREASING WIND SHOULD EVEN ALLOW THE BASINS TO MIX OUT AND INCREASE TEMPERATURES. AND WE TURN BACK TO THAT WORD...WIND. THIS MAY BE THE DAY WITH THE BIGGER THREAT FOR STRONG WIND AS THE MORE POTENT SYSTEM APPROACHES WESTERN WYOMING. UPPER LEVEL WINDS LOOK STRONGER THIS DAY SO MORE WIND HIGHLIGHTS MAY BE NEEDED FOR THE FAVORED AREAS LIKE FROM ROCK SPRINGS TO CASPER. AS FOR THE CHANCE OF PRECIPITATION...DOWNSLOPING FLOW SHOULD KEEP MOST AREAS DRY THROUGH FRIDAY NIGHT. SOME SNOW SHOWERS WILL SPREAD ACROSS THE AREA ON SATURDAY WITH THE FRONTAL PASSAGE. AT THIS POINT...IT DOES NOT LOOK LIKE A MAJOR SNOWFALL FOR MOST AREAS EAST OF THE DIVIDE. THE EXCEPTION WOULD BE IF ANY POST FRONTAL SNOW BANDING CAN SET UP BUT THIS IS DIFFICULT TO PINPOINT THIS FAR OUT. SNOW COVERAGE SHOULD DECREASE SATURDAY NIGHT AS A BUBBLE OF HIGH PRESSURE BUILDS INTO THE AREA. .LONG TERM...SUNDAY THROUGH THURSDAY SYNOPSIS...THE NEXT PACIFIC STORM SYSTEM WILL MOVE INTO THE FOUR CORNERS REGION SUNDAY NIGHT AND LIFT OUT INTO THE CENTRAL PLAINS MONDAY NIGHT. THE HEAVIER SNOWFALL WITH THIS SYSTEM WILL STAY SOUTH OF WYOMING WITH SOME AREAS OF LIGHT SNOW PUSHING INTO SOUTHERN AND CENTRAL WYOMING. A COLD AND UNSETTLED NORTHWEST FLOW WILL KEEP OCCASIONAL SNOW SHOWERS ACROSS THE WESTERN MOUNTAINS AND FAR WEST VALLEYS INTO WEDNESDAY. DISCUSSION...MEDIUM-RANGE MODELS HAVE TRENDED FURTHER SOUTH OVERALL WITH TROUGH DIGGING INTO THE SW U.S. ON SUNDAY...UPPER LOW CLOSING OFF IN THE FOUR CORNERS REGION ON MONDAY. GFS STILL PUMPS UP SHORTWAVE RIDGE ACROSS THE ROCKIES OUT AHEAD OF THIS SYSTEM ON SUNDAY WHILE ECMWF SHOWS BROADER LONGWAVE TROUGH WITH H5 -35C COLD POOL ACROSS NW WYOMING. PREFERENCE REMAINS WITH THE ECMWF WITH COLD AIR LIKELY TO PREVAIL WITH HIGH AMPLITUDE RIDGE UPSTREAM STRETCHING ACROSS THE INTERIOR OF ALASKA. HEAVIER PRECIPITATION ALONG A BAROCLINIC ZONE WILL STRETCH ACROSS SOUTHERN UTAH INTO NW CO SUNDAY MORNING WITH THE INTERSTATE 80 CORRIDOR ON THE NORTHERN FRINGE OF THIS AREA WHERE SNOWFALL AMOUNTS ARE EXPECTED TO BE LIGHTER. H5 LOW CLOSING OFF IN THE FOUR CORNERS REGION AND LEE CYCLOGENESIS NEAR THE NM/TX BORDER WILL RESULT IN THE HEAVIER PRECIPITATION SHIFTING INTO EASTERN CO AND THE CENTRAL PLAINS MONDAY MORNING...BUT UPSLOPE NORTHEAST TO NORTHERLY FLOW WILL LIKELY RESULT IN AREAS OF LIGHT SNOW DEVELOPING ACROSS CENTRAL WYOMING...FAVORING THE EAST SLOPES OF THE WIND RIVER MTNS SUNDAY NIGHT AND CASPER/CASPER MTN AREA ON MONDAY. VERY COLD TEMPERATURES ALOFT WILL LIMIT AVAILABLE MOISTURE WITH ANY SNOW AMOUNTS EXPECTED TO BE OF THE LIGHT FLUFF VARIETY. UPPER LOW WILL LIFT ACROSS THE CENTRAL PLAINS ON TUESDAY WITH TRAILING SHORTWAVE IN COLD NW FLOW BRINGING INCREASING CHANCES OF SNOW SHOWERS INTO THE WESTERN MTNS AND VALLEYS TUESDAY NIGHT INTO WEDNESDAY. UPPER RIDGE IS EXPECTED TO BUILD IN LATE WEDNESDAY WITH NEXT PACIFIC STORM SYSTEM SPLITTING ALONG THE WEST COAST ON THURSDAY...MOST OF ITS ENERGY HEADED WELL SOUTH OF US LATE IN THE WEEK. && .AVIATION.../18Z ISSUANCE/ WEST OF THE CONTINENTAL DIVIDE...KBPI/KJAC/KPNA/KRKS LOW CLOUDS AND AREAS OF FOG WILL BEGIN TO LIFT ACROSS THE JACKSON WHOLE AND STAR VALLEYS LATE THIS MORNING INTO THE EARLY AFTERNOON HOURS. IFR CONDITIONS WILL PREVAIL...GIVING WAY TO MVFR AND POSSIBLY BRIEF VFR THIS AFTERNOON AND EARLY EVENING. INCREASING LOW CLOUDS COULD THEN RETURN MVFR CONDITIONS LATER THIS EVENING ACROSS THE FAR WEST. SNOW WILL THEN DEVELOP AFTER 03Z TONIGHT INTO FRIDAY MORNING...BRINGING MVFR AND POSSIBLY IFR CONDITIONS AFTER 06Z...ALONG WITH MOUNTAIN OBSCURATION...TO WESTERN WYOMING TERMINALS...ESPECIALLY KJAC. VFR CONDITIONS...ALONG WITH SOME BREEZY WINDS...ARE EXPECTED ACROSS SOUTHERN AND SOUTHWESTERN WYOMING THROUGH 06Z FRI. CLOUDS WILL INCREASE IN SW WY AFTER 06Z WITH ISOLATED RAIN OR SNOW SHOWERS DEVELOPING AND SNOW IN THE MOUNTAINS. LOCAL MVFR CONDITIONS ARE POSSIBLE BY 12Z FRI...POSSIBLY CONTINUING THROUGH THE REST OF FRIDAY MORNING. EAST OF THE CONTINENTAL DIVIDE...KCOD/KCPR/KLND/KRIW/KWRL VFR CONDITIONS TO GENERALL PREVAIL THROUGH 18Z FRI. WINDY IN WIND CORRIDOR OF SOUTH CENTRAL WY INCLUDING KCPR...WITH 20-30 KNOTS AND GUSTS TO 40 KNOTS. GUSTY WINDS ALSO POSSIBLE ALONG THE CODY FOOTHILLS THROUGH MUCH OF THE PERIOD...IMPACTING KCOD AT TIMES. AREAS OF WIND SHEAR AROUND 2000 FT AGL COULD ALSO DEVELOP AFTER 09Z MAINLY FROM KCOD TO KRIW AND KLND. && .FIRE WEATHER... DRY CONDITIONS ARE EXPECTED TODAY. WITH FRESH SNOW AND A LACK OF STRONG MIXING...BASIN AND VALLEY INVERSIONS WILL LIKELY CONTINUE BUT TEMPERATURES SHOULD MODERATE A BIT MORE TODAY. GUSTY WINDS WILL CONTINUE TO DEVELOP ACROSS THE WIND CORRIDOR FROM KRKS TO KCPR TONIGHT WITH GUSTY WINDS DEVELOPING IN THE LEE OF THE ABSAROKAS BY LATE THURSDAY AFTERNOON. STRONG WINDS ARE THEN POSSIBLE TONIGHT FOR THE ABSAROKA MOUNTAINS...CODY FOOTHILLS...AND THE WIND CORRIDOR FROM ROCK SPRINGS TO CASPER. SNOW COULD THEN RETURN ACROSS THE WEST LATER TONIGHT INTO THE WEEKEND. && .RIW WATCHES/WARNINGS/ADVISORIES... WINTER STORM WATCH FROM FRIDAY AFTERNOON THROUGH SATURDAY AFTERNOON FOR WYZ001-012-013-023-024. HIGH WIND WARNING FROM 3 PM THIS AFTERNOON TO 6 AM MST FRIDAY FOR WYZ003. && SHORT TERM...HATTINGS LONG TERM...AEM AVIATION...ANGLIN FIRE WEATHER...HATTINGS
Hazardous weather outlook, Jan 28, 2:58 AM MST, 10 hours 53 minutes before
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE RIVERTON WY 258 AM MST THU JAN 28 2016 WYZ001>020-022>030-291200- YELLOWSTONE NATIONAL PARK-ABSAROKA MOUNTAINS-CODY FOOTHILLS- NORTH BIG HORN BASIN-SOUTHWEST BIG HORN BASIN- SOUTHEAST BIG HORN BASIN-OWL CREEK AND BRIDGER MOUNTAINS- BIGHORN MOUNTAINS WEST-BIGHORN MOUNTAINS SOUTHEAST- NORTHEAST JOHNSON COUNTY-SOUTHEAST JOHNSON COUNTY- TETON AND GROS VENTRE MOUNTAINS-JACKSON HOLE- WIND RIVER MOUNTAINS WEST-WIND RIVER MOUNTAINS EAST- UPPER WIND RIVER BASIN-WIND RIVER BASIN-LANDER FOOTHILLS- GREEN MOUNTAINS AND RATTLESNAKE RANGE- NATRONA COUNTY LOWER ELEVATIONS-CASPER MOUNTAIN-STAR VALLEY- SALT RIVER AND WYOMING RANGES-UPPER GREEN RIVER BASIN FOOTHILLS- UPPER GREEN RIVER BASIN-SOUTH LINCOLN COUNTY- ROCK SPRINGS AND GREEN RIVER-FLAMING GORGE-EAST SWEETWATER COUNTY- 258 AM MST THU JAN 28 2016 ...HIGH WIND WARNING FOR THE CODY FOOTHILLS LATER THIS AFTERNOON THROUGH TONIGHT... ...HIGH WIND WATCH FOR THE GREEN MOUNTAINS AND NATRONA COUNTY TONIGHT... ...WINTER STORM WATCH FROM FRIDAY NIGHT TO SATURDAY FOR MUCH OF WESTERN WYOMING... THIS HAZARDOUS WEATHER OUTLOOK IS FOR WESTERN AND CENTRAL WYOMING. .DAY ONE...TODAY AND TONIGHT HIGH WINDS ARE LIKELY IN THE CODY FOOTHILLS LATER THIS AFTERNOON INTO TONIGHT AND POSSIBLE TONIGHT FROM THE RED DESERT TO CASPER. SNOW IS LIKELY IN THE WESTERN MOUNTAINS LATER TONIGHT. .DAYS TWO THROUGH SEVEN...FRIDAY THROUGH WEDNESDAY FRIDAY AFTERNOON INTO FRIDAY NIGHT...VERY STRONG WINDS POSSIBLE FROM ROCK SPRINGS TO CASPER. FRIDAY AND SATURDAY...SIGNIFICANT SNOW AND BLOWING SNOW LIKELY OVER THE WESTERN MOUNTAINS AND VALLEYS WITH THE HEAVIEST SNOWFALL EXPECTED FRIDAY NIGHT. MODERATE TO LOCALLY HEAVY SNOW SHOWERS MAY ACCOMPANY A COLD FRONT ACROSS CENTRAL WYOMING ON SATURDAY. SUNDAY AND MONDAY...A STORM SYSTEM MOVING ACROSS THE SOUTHWEST U.S. MAY BRING SNOW...SLICK ROADS AND LIMITED VISIBILITY...ACROSS MAINLY SOUTHERN WYOMING INCLUDING THE INTERSTATE 80 CORRIDOR ON SUNDAY...WITH AREAS OF LIGHT SNOW DEVELOPING ACROSS FREMONT AND NATRONA COUNTIES ON SUNDAY NIGHT AND MONDAY. .SPOTTER INFORMATION STATEMENT... SPOTTERS ARE URGED TO REPORT WIND GUSTS OVER 50 MPH AND SNOWFALL AMOUNTS. THANK YOU.
In the hours before
Special weather statement, Jan 28, 8:59 AM MST, 4 hours 52 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE RIVERTON WY 859 AM MST THU JAN 28 2016 WYZ019-020-290100- GREEN MOUNTAINS AND RATTLESNAKE RANGE- NATRONA COUNTY LOWER ELEVATIONS- INCLUDING THE CITIES OF...JEFFREY CITY...CASPER 859 AM MST THU JAN 28 2016 ...GUSTY WINDS POSSIBLE ACROSS THE WIND CORRIDOR FROM JEFFREY CITY TO CASPER TONIGHT... INCREASED WESTERLY FLOW AHEAD OF A COLD FRONT WILL BRING GUSTY WINDS TO THE WIND CORRIDOR FROM JEFFREY CITY TO CASPER TONIGHT INTO EARLY FRIDAY MORNING. SUSTAINED WINDS OF 30 TO 35 MPH WITH GUSTS OF 50 TO 55 MPH WILL BE POSSIBLE. A FEW ISOLATED AREAS COULD SEE GUSTS NEAR 60 MPH AT TIMES...ESPECIALLY IN THE OUTER DRIVE AREA ON THE SOUTH END OF CASPER. THOSE WITH HIGH PROFILE VEHICLES OR TRAILERS WITH LIGHT LOADS SHOULD USE EXTREME CAUTION TRAVELING IN THESE AREAS TONIGHT.
The office that day
Everything else NWS Riverton, WY issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jan 28, 1:19 AM MST | High Wind Warning | RIW | Park | 26 hr |
| Jan 28, 1:27 AM MST | Winter Storm Watch | RIW | Fremont, Lincoln, Park, Sublette, Teton | 12 hr |
| Jan 28, 1:51 PM MST | Winter Weather Advisory | RIW | Fremont, Park, Sublette, Sweetwater, Teton | 51 hr |
Nearby
Winter Storm Warnings in Wyoming, 2016Every winter storm warning in 2016
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.