Alert archive / Wyoming / Winter Storm Warnings in 2021
Winter Storm Warning 2, NWS Riverton, WY
NWS Riverton, WY issued this winter storm warning at Feb 5, 2021, 1:30 AM MST for 4 counties in Wyoming. It was in force for 17 hr. 20 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
- Feb 5, 2021, 1:30 AM MST (08:30 UTC)
- Expired
- Feb 5, 2021, 6:00 PM MST
- In force
- 17 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 08:34 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 5, 6:00 AM MST | SNOW 0.8 | 6 Wnw Cora, WY | COCORAHS STATION WY-SL-7 PINEDALE 14 NW. |
| Feb 5, 7:00 AM MST | SNOW 0.5 | 5 Se Pinedale, WY | COCORAHS STATION WY-SL-18 PINEDALE 5.0 SE. |
| Feb 5, 7:00 AM MST | SNOW 8 | 2 Nnw Turnerville, WY | CO-OP OBSERVER STATION BDFW4 BEDFORD 3SE. |
| Feb 5, 7:00 AM MST | SNOW 8.5 | 3 N Etna, WY | COCORAHS STATION WY-LN-29 ALPINE 5.9 S. |
| Feb 5, 7:00 AM MST | SNOW 9.2 | 1 Sse Thayne, WY | COCORAHS STATION WY-LN-18 THAYNE 2SE. |
| Feb 5, 7:00 AM MST | SNOW 13 | 5 Sse Smoot, WY | COCORAHS STATION WY-LN-2 SMOOT 5 SSE. |
| Feb 5, 8:00 AM MST | SNOW 1.1 | 2 Wsw Pinedale, WY | COCORAHS STATION WY-SL-19 PINEDALE 2.0 WSW. |
| Feb 5, 8:00 AM MST | SNOW 1.5 | 20 E Bondurant, WY | COCORAHS STATION WY-SL-13 PINEDALE 26 NNW. |
| Feb 5, 8:00 AM MST | SNOW 5 | 3 Ssw Wilson, WY | COCORAHS STATION WY-TT-22 WILSON 3 SSW. |
| Feb 5, 8:00 AM MST | SNOW 6 | 2 Nne Teton Village, WY | COCORAHS STATION WY-TT-15 TETON VILLAGE 2 NE. |
| Feb 5, 8:00 AM MST | HEAVY SNOW 18 | 5 Ene Alta, WY | |
| Feb 5, 9:00 AM MST | SNOW 1.9 | 1 N Jackson, WY | CO-OP OBSERVER STATION JFSW4 JACKSON. |
| Feb 5, 9:00 AM MST | SNOW 13 | 5 Nne Thayne, WY | COCORAHS STATION WY-LN-17 THAYNE 5NNE. |
| Feb 5, 9:04 AM MST | SNOW 3 | Kelly, WY | COCORAHS STATION WY-TT-9 JACKSON 12 NE. |
| Feb 5, 9:15 AM MST | SNOW 6 | Moose, WY | |
| Feb 5, 10:00 AM MST | SNOW 2 | Old Faithful, WY | CO-OP OBSERVER STATION OLFW4 OLD FAITHFUL - YNP. |
| Feb 5, 11:00 AM MST | SNOW 13 | Alpine, WY | |
| Feb 5, 11:15 AM MST | SNOW 12 | 11 Nw Moran Junction, WY | COLTER BAY VILLAGE. |
| Feb 5, 1:00 PM MST | HEAVY SNOW 19 | 3 Wnw Teton Village, WY | |
| Feb 5, 6:10 PM MST | HEAVY SNOW 28 | 3 Wnw Teton Village, WY | JACKSON HOLE - BOWL. |
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 00:00Z, 8.5 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
- 2374 m above ground
- 0-6 km bulk shear
- 54 kt
- 0-1 km storm-relative helicity
- 30 m²/s²
- 0-3 km storm-relative helicity
- 64 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
070 WWUS45 KRIW 050830 WSWRIW URGENT - WINTER WEATHER MESSAGE National Weather Service Riverton WY 130 AM MST Fri Feb 5 2021 ...Moderate to Heavy Snow continues in Western and Northern Wyoming... .A weather system in northwest flow will bring widespread snow to the western and northern Wyoming tonight through Friday afternoon. The heaviest snow is expected through midday Friday. WYZ012-060000- /O.UPG.KRIW.WW.Y.0009.000000T0000Z-210206T0100Z/ /O.NEW.KRIW.WS.W.0002.210205T0830Z-210206T0100Z/ Teton and Gros Ventre Mountains- 130 AM MST Fri Feb 5 2021 ...WINTER STORM WARNING IN EFFECT UNTIL 6 PM MST THIS EVENING... * WHAT...Heavy snow. Total snow accumulations of 10 to 18 inches with higher amounts possible in the western slopes of the Tetons. Winds gusting as high as 40 mph. * WHERE...Teton and Gros Ventre Mountains. * WHEN...Until 6 PM MST this evening. * IMPACTS...Travel could be very difficult, including over Teton and Togwotee Passes. The hazardous conditions will impact the morning commute. * ADDITIONAL DETAILS...Those planning outdoor activities should be prepared for adverse winter weather. PRECAUTIONARY/PREPAREDNESS ACTIONS... If you must travel, keep an extra flashlight, food, and water in your vehicle in case of an emergency. The latest road conditions for the state you are calling from can be obtained by calling 5 1 1. && $$ WYZ001-060000- /O.CON.KRIW.WW.Y.0009.000000T0000Z-210206T0100Z/ Yellowstone National Park- Including the cities of Lake, Mammoth, and Old Faithful 130 AM MST Fri Feb 5 2021 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 6 PM MST THIS EVENING... * WHAT...Snow. Total snow accumulations of 6 to 10 inches, with 4 to 6 inches in the lower elevations. * WHERE...Yellowstone National Park. * WHEN...Now until 6 PM MST Friday. The heaviest snow is expected from late tonight through Friday morning. * IMPACTS...Plan on winter driving conditions in the north part of the park. * ADDITIONAL DETAILS...Those planning outdoor activities should be prepared for adverse winter weather. PRECAUTIONARY/PREPAREDNESS ACTIONS... Slow down and use caution while traveling. The latest road conditions for the state you are calling from can be obtained by calling 5 1 1. && $$ WYZ002-060000- /O.CON.KRIW.WW.Y.0009.000000T0000Z-210206T0100Z/ Absaroka Mountains- 130 AM MST Fri Feb 5 2021 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 6 PM MST THIS EVENING... * WHAT...Snow. Total snow accumulations of 6 to 10 inches, with 4 to 6 inches in the eastern portions. Winds gusting as high as 45 mph. * WHERE...Absaroka Mountains. * WHEN...Now until 6 PM MST Friday. The heaviest snow is expected from late tonight through Friday morning. * IMPACTS...Plan on slippery road conditions leading into the mountains. Patchy blowing snow could significantly reduce visibility. * ADDITIONAL DETAILS...Those planning outdoor activities should be prepared for adverse winter weather. PRECAUTIONARY/PREPAREDNESS ACTIONS... Slow down and use caution while traveling. The latest road conditions for the state you are calling from can be obtained by calling 5 1 1. && $$ WYZ013-060000- /O.CON.KRIW.WW.Y.0009.000000T0000Z-210206T0100Z/ Jackson Hole- Including the city of Jackson 130 AM MST Fri Feb 5 2021 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 6 PM MST THIS EVENING... * WHAT...Snow. Total snow accumulations of 3 to 6 inches. * WHERE...Jackson Hole. * WHEN...Now until 6 PM MST Friday. * IMPACTS...Plan on snow covered road conditions. Drifting snow will occur in open areas north of Jackson due to the wind. * ADDITIONAL DETAILS...Those planning outdoor activities should be prepared for adverse winter weather. PRECAUTIONARY/PREPAREDNESS ACTIONS... Slow down and use caution while traveling. The latest road conditions for the state you are calling from can be obtained by calling 5 1 1. && $$ WYZ023-060000- /O.CON.KRIW.WW.Y.0009.000000T0000Z-210206T0100Z/ Star Valley- Including the cities of Afton, Alpine, Star Valley Ranch, and Thayne 130 AM MST Fri Feb 5 2021 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 6 PM MST THIS EVENING... * WHAT...Snow. Total snow accumulations of 3 to 6 inches, with locally higher amounts possible near Alpine and along the east side of the Star Valley. * WHERE...Star Valley. * WHEN...Now until 6 PM MST Friday. * IMPACTS...Travel could be very difficult. Expect snow covered roads. * ADDITIONAL DETAILS...Those planning outdoor activities should be prepared for adverse winter weather. PRECAUTIONARY/PREPAREDNESS ACTIONS... Slow down and use caution while traveling. The latest road conditions for the state you are calling from can be obtained by calling 5 1 1. && $$ WYZ024-060000- /O.CON.KRIW.WW.Y.0009.000000T0000Z-210206T0100Z/ Salt River and Wyoming Ranges- 130 AM MST Fri Feb 5 2021 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 6 PM MST THIS EVENING... * WHAT...Snow. Moderate to heavy at times. Total snow accumulations of 6 to 12 inches. Winds gusting as high as 40 mph over the mountain peaks. * WHERE...Salt River and Wyoming Ranges. * WHEN...Now until 6 PM MST Friday. * IMPACTS...Travel could be very difficult. Patchy blowing snow could significantly reduce visibility. * ADDITIONAL DETAILS...Those planning outdoor activities should be prepared for adverse winter weather. PRECAUTIONARY/PREPAREDNESS ACTIONS... Slow down and use caution while traveling. The latest road conditions for the state you are calling from can be obtained by calling 5 1 1. && $$ WYZ008-060000- /O.CON.KRIW.WW.Y.0009.000000T0000Z-210206T0600Z/ Bighorn Mountains West- 130 AM MST Fri Feb 5 2021 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 11 PM MST THIS EVENING... * WHAT...Snow. Total snow accumulations of 6 to 10 inches. * WHERE...Bighorn Mountains West. * WHEN...Now until 11 PM MST Friday. * IMPACTS...Plan on slippery to snow covered road conditions. * ADDITIONAL DETAILS...Those planning outdoor activities should be prepared for adverse winter weather. Both Granite Pass and Powder River Pass will be hazardous for travel. PRECAUTIONARY/PREPAREDNESS ACTIONS... Slow down and use caution while traveling. The latest road conditions for the state you are calling from can be obtained by calling 5 1 1. && $$ For more information from the National Weather Service visit http://weather.gov/riw
4 follow-up statements
804 WWUS45 KRIW 051632 WSWRIW URGENT - WINTER WEATHER MESSAGE National Weather Service Riverton WY 932 AM MST Fri Feb 5 2021 ...Moderate to Heavy Snow continues in Western and Northern Wyoming... .A weather system sweeping northwest to southwest across the region will bring widespread snow to western and northern Wyoming through Friday afternoon. The heaviest snow is expected through midday Friday. WYZ023-060100- /O.UPG.KRIW.WW.Y.0009.000000T0000Z-210206T0100Z/ /O.EXA.KRIW.WS.W.0002.000000T0000Z-210206T0100Z/ Star Valley- Including the cities of Afton, Alpine, Star Valley Ranch, and Thayne 932 AM MST Fri Feb 5 2021 ...WINTER STORM WARNING IN EFFECT UNTIL 6 PM MST THIS EVENING... * WHAT...Heavy snow. Additional snow accumulations of 1 to 3 inches. Total accumulations of 10 to 15 inches across the north half of the Star Valley, with total accumulations 6 to 9 inches in the south half. * WHERE...Star Valley. * WHEN...Until 6 PM MST this evening. * IMPACTS...Travel could be very difficult. Roads will be snow covered and visibility limited at times. * ADDITIONAL DETAILS...Those planning outdoor activities should be prepared for adverse winter weather. PRECAUTIONARY/PREPAREDNESS ACTIONS... If you must travel, keep an extra flashlight, food, and water in your vehicle in case of an emergency. The latest road conditions for the state you are calling from can be obtained by calling 5 1 1. && $$ WYZ013-060100- /O.UPG.KRIW.WW.Y.0009.000000T0000Z-210206T0100Z/ /O.EXA.KRIW.WS.W.0002.000000T0000Z-210206T0100Z/ Jackson Hole- Including the city of Jackson 932 AM MST Fri Feb 5 2021 ...WINTER STORM WARNING IN EFFECT UNTIL 6 PM MST THIS EVENING... * WHAT...Heavy snow. Additional snow accumulations of 1 to 3 inches. Total accumulations of 4 to 8 inches around Jackson and Moose. Total accumulations of 10 to 15 inches from Colter Bay to Moran. * WHERE...Jackson Hole. * WHEN...Until 6 PM MST this evening. * IMPACTS...Plan on snow covered road conditions. Drifting snow will occur in open areas north of Jackson due to the wind. Travel could be very difficult on US Highway 89 through Grand Teton National Park due to the snow and blowing snow limiting visibility. * ADDITIONAL DETAILS...Those planning outdoor activities should be prepared for adverse winter weather. PRECAUTIONARY/PREPAREDNESS ACTIONS... If you must travel, keep an extra flashlight, food, and water in your vehicle in case of an emergency. The latest road conditions for the state you are calling from can be obtained by calling 5 1 1. && $$ WYZ012-060100- /O.CON.KRIW.WS.W.0002.000000T0000Z-210206T0100Z/ Teton and Gros Ventre Mountains- 932 AM MST Fri Feb 5 2021 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 6 PM MST THIS EVENING... * WHAT...Heavy snow with additional accumulations of 2 to 4 inches. Total snow accumulations of 12 to 18 inches with higher amounts possible along the west slopes of the Tetons. Winds gusting as high as 40 mph. * WHERE...Teton and Gros Ventre Mountains. * WHEN...Until 6 PM MST this evening. * IMPACTS...Travel could be very difficult, including over Teton and Togwotee passes. The hazardous conditions will be most impactful through midday. * ADDITIONAL DETAILS...Those planning outdoor activities should be prepared for adverse winter weather. PRECAUTIONARY/PREPAREDNESS ACTIONS... If you must travel, keep an extra flashlight, food, and water in your vehicle in case of an emergency. The latest road conditions for the state you are calling from can be obtained by calling 5 1 1. && $$ WYZ001-060100- /O.CON.KRIW.WW.Y.0009.000000T0000Z-210206T0100Z/ Yellowstone National Park- Including the cities of Lake, Mammoth, and Old Faithful 932 AM MST Fri Feb 5 2021 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 6 PM MST THIS EVENING... * WHAT...Snow with additional accumulations of 1 to 3 inches. Total snow accumulations 4 to 8 inches in the lower elevations of Yellowstone, with 8 to 14 inches in the mountains and far southwest corner. * WHERE...Yellowstone National Park. * WHEN...Now until 6 PM MST Friday. The heaviest snow is expected through midday. * IMPACTS...Plan on winter driving conditions in the north part of Yellowstone. * ADDITIONAL DETAILS...Those planning outdoor activities should be prepared for adverse winter weather. PRECAUTIONARY/PREPAREDNESS ACTIONS... Slow down and use caution while traveling. The latest road conditions for the state you are calling from can be obtained by calling 5 1 1. && $$ WYZ002-060100- /O.CON.KRIW.WW.Y.0009.000000T0000Z-210206T0100Z/ Absaroka Mountains- 932 AM MST Fri Feb 5 2021 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 6 PM MST THIS EVENING... * WHAT...Snow. Total snow accumulations of 6 to 10 inches, with 4 to 6 inches in the eastern portions. Winds gusting as high as 45 mph. * WHERE...Absaroka Mountains. * WHEN...Now until 6 PM MST Friday. The heaviest snow is expected through midday. * IMPACTS...Plan on slippery road conditions leading into the mountains. Patchy blowing snow could significantly reduce visibility. * ADDITIONAL DETAILS...Those planning outdoor activities should be prepared for adverse winter weather. PRECAUTIONARY/PREPAREDNESS ACTIONS... Slow down and use caution while traveling between the East Entrance and Cody. The latest road conditions for the state you are calling from can be obtained by calling 5 1 1. && $$ WYZ024-060100- /O.CON.KRIW.WW.Y.0009.000000T0000Z-210206T0100Z/ Salt River and Wyoming Ranges- 932 AM MST Fri Feb 5 2021 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 6 PM MST THIS EVENING... * WHAT...Snow with additional accumulations of 2 to 4 inches. Total snow accumulations of 6 to 12 inches. Winds gusting as high as 40 mph over the mountain peaks. * WHERE...Salt River and Wyoming Ranges. * WHEN...Now until 6 PM MST Friday. * IMPACTS...Travel could be very difficult over Salt River Pass. Patchy blowing snow could significantly reduce visibility. * ADDITIONAL DETAILS...Those planning outdoor activities should be prepared for adverse winter weather. PRECAUTIONARY/PREPAREDNESS ACTIONS... Slow down and use caution while traveling. The latest road conditions for the state you are calling from can be obtained by calling 5 1 1. && $$ WYZ008-060100- /O.CON.KRIW.WW.Y.0009.000000T0000Z-210206T0600Z/ Bighorn Mountains West- 932 AM MST Fri Feb 5 2021 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 11 PM MST THIS EVENING... * WHAT...Snow. Total snow accumulations of 8 to 12 inches. * WHERE...Bighorn Mountains West. * WHEN...Now until 11 PM MST Friday. * IMPACTS...Plan on snow covered roads. * ADDITIONAL DETAILS...Those planning outdoor activities should be prepared for adverse winter weather. Both Granite Pass and Powder River Pass will be hazardous for travel. PRECAUTIONARY/PREPAREDNESS ACTIONS... Slow down and use caution while traveling. The latest road conditions for the state you are calling from can be obtained by calling 5 1 1. && $$ For more information from the National Weather Service visit http://weather.gov/riw
853 WWUS45 KRIW 052136 WSWRIW URGENT - WINTER WEATHER MESSAGE National Weather Service Riverton WY 236 PM MST Fri Feb 5 2021 ...Snow Gradually Slowing in Intensity Across Northwest Wyoming through Sunset Today... .A weather system sweeping northwest to southwest across the region will allow for light snow to persist in northwest Wyoming through this afternoon. This same system will continue to produce accumulating snow in the Bighorn Mountains this evening. WYZ012-060100- /O.CON.KRIW.WS.W.0002.000000T0000Z-210206T0100Z/ Teton and Gros Ventre Mountains- 236 PM MST Fri Feb 5 2021 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 6 PM MST THIS EVENING... * WHAT...Snow. Total accumulations of 14 to 24 inches with higher amounts possible along the west slopes of the Tetons. Ridgetop winds gusting 30 to 40 mph. * WHERE...Teton and Gros Ventre Mountains. * WHEN...Until 6 PM MST. * IMPACTS...Travel could be very difficult, including over Teton and Togwotee passes. * ADDITIONAL DETAILS...Those planning outdoor activities should be prepared for adverse winter weather. PRECAUTIONARY/PREPAREDNESS ACTIONS... If you must travel, keep an extra flashlight, food, and water in your vehicle in case of an emergency. The latest road conditions for the state you are calling from can be obtained by calling 5 1 1. && $$ WYZ013-060100- /O.CON.KRIW.WS.W.0002.000000T0000Z-210206T0100Z/ Jackson Hole- Including the city of Jackson 236 PM MST Fri Feb 5 2021 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 6 PM MST THIS EVENING... * WHAT...Snow. Total accumulations of 5 to 9 inches around Jackson and Moose, with total accumulations of 10 to 16 inches from Colter Bay to Moran. * WHERE...Jackson Hole. * WHEN...Until 6 PM MST. * IMPACTS...Plan on snow covered road conditions. Drifting snow will occur in open areas north of Jackson due to the wind. Travel could be very difficult on US Highway 89 through Grand Teton National Park. * ADDITIONAL DETAILS...Those planning outdoor activities should be prepared for adverse winter weather. PRECAUTIONARY/PREPAREDNESS ACTIONS... If you must travel, keep an extra flashlight, food, and water in your vehicle in case of an emergency. The latest road conditions for the state you are calling from can be obtained by calling 5 1 1. && $$ WYZ023-060100- /O.CON.KRIW.WS.W.0002.000000T0000Z-210206T0100Z/ Star Valley- Including the cities of Afton, Alpine, Star Valley Ranch, and Thayne 236 PM MST Fri Feb 5 2021 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 6 PM MST THIS EVENING... * WHAT...Snow decreasing. Total accumulations of 10 to 16 inches across the north half of the Star Valley, with total accumulations 6 to 10 inches in the south half. * WHERE...Star Valley. * WHEN...Until 6 PM MST. * IMPACTS...Travel could be very difficult. Roads will be snow covered and visibility limited at times. * ADDITIONAL DETAILS...Those planning outdoor activities should be prepared for adverse winter weather. PRECAUTIONARY/PREPAREDNESS ACTIONS... If you must travel, keep an extra flashlight, food, and water in your vehicle in case of an emergency. The latest road conditions for the state you are calling from can be obtained by calling 5 1 1. && $$ WYZ001-060100- /O.CON.KRIW.WW.Y.0009.000000T0000Z-210206T0100Z/ Yellowstone National Park- Including the cities of Lake, Mammoth, and Old Faithful 236 PM MST Fri Feb 5 2021 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 6 PM MST THIS EVENING... * WHAT...Snow decreasing. Total snow accumulations 4 to 8 inches in the lower elevations of Yellowstone, with 10 to 16 inches in the mountains and far southwest corner. * WHERE...Yellowstone National Park. * WHEN...Until 6 PM MST. * IMPACTS...Plan on winter driving conditions in the north part of Yellowstone. * ADDITIONAL DETAILS...Those planning outdoor activities should be prepared for adverse winter weather. PRECAUTIONARY/PREPAREDNESS ACTIONS... Slow down and use caution while traveling. The latest road conditions for the state you are calling from can be obtained by calling 5 1 1. && $$ WYZ002-060100- /O.CON.KRIW.WW.Y.0009.000000T0000Z-210206T0100Z/ Absaroka Mountains- 236 PM MST Fri Feb 5 2021 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 6 PM MST THIS EVENING... * WHAT...Snow. Total snow accumulations of 6 to 10 inches, with 3 to 6 inches in the eastern portions. * WHERE...Absaroka Mountains. * WHEN...Until 6 PM MST. * IMPACTS...Plan on slippery road conditions leading into the mountains. Patchy blowing snow could significantly reduce visibility. * ADDITIONAL DETAILS...Those planning outdoor activities should be prepared for adverse winter weather. PRECAUTIONARY/PREPAREDNESS ACTIONS... Slow down and use caution while traveling between the East Entrance and Cody. The latest road conditions for the state you are calling from can be obtained by calling 5 1 1. && $$ WYZ024-060100- /O.CON.KRIW.WW.Y.0009.000000T0000Z-210206T0100Z/ Salt River and Wyoming Ranges- 236 PM MST Fri Feb 5 2021 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 6 PM MST THIS EVENING... * WHAT...Snow. Total snow accumulations of 8 to 14 inches. Winds gusting as high as 40 mph over the mountain peaks. * WHERE...Salt River and Wyoming Ranges. * WHEN...Until 6 PM MST. * IMPACTS...Travel could be very difficult over Salt River Pass. Patchy blowing snow could significantly reduce visibility. * ADDITIONAL DETAILS...Those planning outdoor activities should be prepared for adverse winter weather. PRECAUTIONARY/PREPAREDNESS ACTIONS... Slow down and use caution while traveling. The latest road conditions for the state you are calling from can be obtained by calling 5 1 1. && $$ WYZ008-060130- /O.CON.KRIW.WW.Y.0009.000000T0000Z-210206T0600Z/ Bighorn Mountains West- 236 PM MST Fri Feb 5 2021 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 11 PM MST THIS EVENING... * WHAT...Snow. Total snow accumulations of 8 to 14 inches. * WHERE...Bighorn Mountains West. * WHEN...Until 11 PM MST. * IMPACTS...Plan on snow covered roads. * ADDITIONAL DETAILS...Those planning outdoor activities should be prepared for adverse winter weather. Both Granite Pass and Powder River Pass will be hazardous for travel. PRECAUTIONARY/PREPAREDNESS ACTIONS... Slow down and use caution while traveling. The latest road conditions for the state you are calling from can be obtained by calling 5 1 1. && $$ For more information from the National Weather Service visit http://weather.gov/riw
298 WWUS45 KRIW 060045 WSWRIW URGENT - WINTER WEATHER MESSAGE National Weather Service Riverton WY 545 PM MST Fri Feb 5 2021 ...Snow Gradually Slowing in Intensity Across Northwest Wyoming through Sunset Today... .A weather system sweeping northwest to southwest across the region will allow for light snow to persist in northwest Wyoming through this afternoon. This same system will continue to produce accumulating snow in the Bighorn Mountains this evening. WYZ012-060145- /O.EXP.KRIW.WS.W.0002.000000T0000Z-210206T0100Z/ Teton and Gros Ventre Mountains- 545 PM MST Fri Feb 5 2021 ...WINTER STORM WARNING WILL EXPIRE AT 6 PM MST THIS EVENING... Snow has decreased in intensity across the area. Therefore the Winter Storm Warning will be allowed to expire. $$ WYZ013-060145- /O.EXP.KRIW.WS.W.0002.000000T0000Z-210206T0100Z/ Jackson Hole- Including the city of Jackson 545 PM MST Fri Feb 5 2021 ...WINTER STORM WARNING WILL EXPIRE AT 6 PM MST THIS EVENING... Snow has decreased in intensity across the area. Therefore the Winter Storm Warning will be allowed to expire. $$ WYZ023-060145- /O.EXP.KRIW.WS.W.0002.000000T0000Z-210206T0100Z/ Star Valley- Including the cities of Afton, Alpine, Star Valley Ranch, and Thayne 545 PM MST Fri Feb 5 2021 ...WINTER STORM WARNING WILL EXPIRE AT 6 PM MST THIS EVENING... Snow has decreased in intensity across the area. Therefore the Winter Storm Warning will be allowed to expire. $$ WYZ001-060145- /O.EXP.KRIW.WW.Y.0009.000000T0000Z-210206T0100Z/ Yellowstone National Park- Including the cities of Lake, Mammoth, and Old Faithful 545 PM MST Fri Feb 5 2021 ...WINTER WEATHER ADVISORY WILL EXPIRE AT 6 PM MST THIS EVENING... Snow has decreased in intensity across the area. Therefore the Winter Weather Advisory will be allowed to expire. $$ WYZ002-060145- /O.EXP.KRIW.WW.Y.0009.000000T0000Z-210206T0100Z/ Absaroka Mountains- 545 PM MST Fri Feb 5 2021 ...WINTER WEATHER ADVISORY WILL EXPIRE AT 6 PM MST THIS EVENING... Snow has decreased in intensity across the area. Therefore the Winter Weather Advisory will be allowed to expire. $$ WYZ024-060145- /O.EXP.KRIW.WW.Y.0009.000000T0000Z-210206T0100Z/ Salt River and Wyoming Ranges- 545 PM MST Fri Feb 5 2021 ...WINTER WEATHER ADVISORY WILL EXPIRE AT 6 PM MST THIS EVENING... Snow has decreased in intensity across the area. Therefore the Winter Weather Advisory will be allowed to expire. $$ WYZ008-060600- /O.CON.KRIW.WW.Y.0009.000000T0000Z-210206T0600Z/ Bighorn Mountains West- 545 PM MST Fri Feb 5 2021 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 11 PM MST THIS EVENING... * WHAT...Snow. Additional snow accumulations of 1 to 3 inches. * WHERE...Bighorn Mountains West. * WHEN...Until 11 PM MST. * IMPACTS...Plan on snow covered roads. * ADDITIONAL DETAILS...Those planning outdoor activities should be prepared for adverse winter weather. Both Granite Pass and Powder River Pass will be hazardous for travel. PRECAUTIONARY/PREPAREDNESS ACTIONS... Slow down and use caution while traveling. The latest road conditions for the state you are calling from can be obtained by calling 5 1 1. && $$ For more information from the National Weather Service visit http://weather.gov/riw
734 WWUS45 KRIW 060050 CCA WSWRIW URGENT - WINTER WEATHER MESSAGE...CORRECTED National Weather Service Riverton WY 550 PM MST Fri Feb 5 2021 ...Significant snow continues across the Bighorn Mountains this evening... .The present weather system impacting northern Wyoming is decreasing in intensity. However accumulating snow is likely across the Bighorn Mountains. WYZ012-060145- /O.EXP.KRIW.WS.W.0002.000000T0000Z-210206T0100Z/ Teton and Gros Ventre Mountains- 550 PM MST Fri Feb 5 2021 ...WINTER STORM WARNING WILL EXPIRE AT 6 PM MST THIS EVENING... Snow has decreased in intensity across the area. Therefore the Winter Storm Warning will be allowed to expire. $$ WYZ013-060145- /O.EXP.KRIW.WS.W.0002.000000T0000Z-210206T0100Z/ Jackson Hole- Including the city of Jackson 550 PM MST Fri Feb 5 2021 ...WINTER STORM WARNING WILL EXPIRE AT 6 PM MST THIS EVENING... Snow has decreased in intensity across the area. Therefore the Winter Storm Warning will be allowed to expire. $$ WYZ023-060145- /O.EXP.KRIW.WS.W.0002.000000T0000Z-210206T0100Z/ Star Valley- Including the cities of Afton, Alpine, Star Valley Ranch, and Thayne 550 PM MST Fri Feb 5 2021 ...WINTER STORM WARNING WILL EXPIRE AT 6 PM MST THIS EVENING... Snow has decreased in intensity across the area. Therefore the Winter Storm Warning will be allowed to expire. $$ WYZ001-060145- /O.EXP.KRIW.WW.Y.0009.000000T0000Z-210206T0100Z/ Yellowstone National Park- Including the cities of Lake, Mammoth, and Old Faithful 550 PM MST Fri Feb 5 2021 ...WINTER WEATHER ADVISORY WILL EXPIRE AT 6 PM MST THIS EVENING... Snow has decreased in intensity across the area. Therefore the Winter Weather Advisory will be allowed to expire. $$ WYZ002-060145- /O.EXP.KRIW.WW.Y.0009.000000T0000Z-210206T0100Z/ Absaroka Mountains- 550 PM MST Fri Feb 5 2021 ...WINTER WEATHER ADVISORY WILL EXPIRE AT 6 PM MST THIS EVENING... Snow has decreased in intensity across the area. Therefore the Winter Weather Advisory will be allowed to expire. $$ WYZ024-060145- /O.EXP.KRIW.WW.Y.0009.000000T0000Z-210206T0100Z/ Salt River and Wyoming Ranges- 550 PM MST Fri Feb 5 2021 ...WINTER WEATHER ADVISORY WILL EXPIRE AT 6 PM MST THIS EVENING... Snow has decreased in intensity across the area. Therefore the Winter Weather Advisory will be allowed to expire. $$ WYZ008-060600- /O.CON.KRIW.WW.Y.0009.000000T0000Z-210206T0600Z/ Bighorn Mountains West- 550 PM MST Fri Feb 5 2021 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 11 PM MST THIS EVENING... * WHAT...Snow. Additional snow accumulations of 1 to 3 inches. * WHERE...Bighorn Mountains West. * WHEN...Until 11 PM MST. * IMPACTS...Plan on snow covered roads. * ADDITIONAL DETAILS...Those planning outdoor activities should be prepared for adverse winter weather. Both Granite Pass and Powder River Pass will be hazardous for travel. PRECAUTIONARY/PREPAREDNESS ACTIONS... Slow down and use caution while traveling. The latest road conditions for the state you are calling from can be obtained by calling 5 1 1. && $$ For more information from the National Weather Service visit http://weather.gov/riw
Nearby
Winter Storm Warnings in Wyoming, 2021Every winter storm warning in 2021
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.