Alert archive / Wyoming / Blizzard Warnings in 2017
Blizzard Warning 2, NWS Riverton, WY
NWS Riverton, WY issued this blizzard warning at Mar 30, 2017, 12:38 PM MDT for Fremont County, Sublette County, Wyoming. It took effect at Mar 30, 2017, 9:00 PM MDT. It was in force for 29 hr. 18 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
- Mar 30, 2017, 12:38 PM MDT (18:38 UTC)
- In effect from
- Mar 30, 2017, 9:00 PM MDT
- Expired
- Apr 1, 2017, 1:31 AM MDT
- In force
- 29 hr
- Issued by
- NWS Riverton, WY
Counties Fremont County, WY, Sublette County, WY
The radar
The Riverton/Lander radar (KRIW), 67 km from the middle of the area, began a volume at 18:36 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 |
|---|---|---|---|
| Mar 31, 8:37 AM MDT | SNOW 3 | Brooks Lake, WY | |
| Mar 31, 8:41 AM MDT | HEAVY SNOW 8.1 | 6 Sw Lander, WY | |
| Mar 31, 8:43 AM MDT | SNOW 3 | 11 N Dubois, WY | BURROUGHS CREEK SNOTEL |
| Mar 31, 8:52 AM MDT | SNOW 5 | 21 W Big Piney, WY | SNIDER BASIN SNOTEL |
| Mar 31, 8:53 AM MDT | SNOW 3 | 17 E Afton, WY | TRIPLE PEAK SNOTEL |
| Mar 31, 11:36 AM MDT | HEAVY SNOW 7.6 | Atlantic City, WY | |
| Mar 31, 12:38 PM MDT | SNOW 5.7 | 1 S Lander, WY | LANDER AIRPORT |
| Mar 31, 12:52 PM MDT | SNOW 5 | Hudson, WY | |
| Mar 31, 6:47 PM MDT | SNOW 3 | 25 Sw Lander, WY | LARSEN CREEK SNOTEL |
| Mar 31, 6:47 PM MDT | SNOW 5 | 16 Sw Dubois, WY | GUNSITE PASS SNOTEL |
| Mar 31, 6:47 PM MDT | HEAVY SNOW 21 | 19 Ssw Lander, WY | DEER PARK SNOTEL |
| Mar 31, 6:47 PM MDT | HEAVY SNOW 24 | 14 W Crowheart, WY | COLD SPRINGS SNOTEL |
| Mar 31, 6:48 PM MDT | HEAVY SNOW 17 | 18 W Lander, WY | HOBBS PARK SNOTEL |
| Mar 31, 6:48 PM MDT | HEAVY SNOW 20 | 7 Nw Atlantic City, WY | SOUTH PASS SNOTEL |
| Mar 31, 6:48 PM MDT | HEAVY SNOW 23 | 6 Wsw Dubois, WY | LITTLE WARM SNOTEL |
| Mar 31, 6:48 PM MDT | HEAVY SNOW 27 | 12 Sw Lander, WY | TOWNSEND CREEK SNOTEL |
| Mar 31, 6:48 PM MDT | HEAVY SNOW 29 | 26 Nw Lander, WY | ST. LAWRENCE ALT SNOTEL |
| Mar 31, 7:16 PM MDT | SNOW 3 | Arapahoe, WY |
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, 6.6 hours before the alert went out and 73 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
- 1775 m above ground
- 0-6 km bulk shear
- 38 kt
- 0-1 km storm-relative helicity
- 44 m²/s²
- 0-3 km storm-relative helicity
- 56 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
807 WWUS45 KRIW 301838 WSWRIW URGENT - WINTER WEATHER MESSAGE National Weather Service Riverton WY 1238 PM MDT Thu Mar 30 2017 ...A major winter storm will impact quite a bit of the higher elevations and much of Fremont County tonight through Friday night... .A strong upper level low will bring a return to winter weather for many areas. This upper low will track towards the 4-corners region tonight and remain in the area through Friday night. A very moist flow will move into the area with heavy amounts of rain, snow and rain snow mix depending on elevation and time of day. This is a very challenging forecast for snow levels in the lowest elevations. WYZ014-015-311200- /O.UPG.KRIW.WS.A.0014.170331T0600Z-170401T0900Z/ /O.NEW.KRIW.BZ.W.0002.170331T0300Z-170401T1200Z/ Wind River Mountains West-Wind River Mountains East- 1238 PM MDT Thu Mar 30 2017 ...BLIZZARD WARNING IN EFFECT FROM 9 PM THIS EVENING TO 6 AM MDT SATURDAY... The National Weather Service in Riverton has issued a Blizzard Warning, which is in effect from 9 PM this evening to 6 AM MDT Saturday. The Winter Storm Watch is no longer in effect. * TIMING...Snow...heavy at times...is expected to develop quickly late this evening and continue through late Friday night. A northeast wind will develop quickly this evening and increase overnight, continuing through Friday. Blizzard conditions are expected over South Pass much of this time. * SNOWFALL...2 to 3 feet. * WIND AND VISIBILITY...Northeast 40 to 60 mph combined with heavy snow will likely produce near zero visibility at times in blizzard conditions. * Main impact...Travel over South Pass may become impossible by later tonight through Friday night due to heavy snow and 50 to 60 mph wind gusts creating zero visibility. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Blizzard Warning means severe winter weather conditions are expected or occurring. Falling and blowing snow with strong winds and poor visibilities are likely. This will lead to whiteout conditions...making travel extremely dangerous. Do not travel. If you must travel...have a winter survival kit with you. If you get stranded...stay with your vehicle. && $$ WYZ019-311200- /O.UPG.KRIW.WS.A.0014.170331T0600Z-170401T0900Z/ /O.NEW.KRIW.WS.W.0011.170331T0600Z-170401T1200Z/ Green Mountains and Rattlesnake Range- Including the city of Jeffrey City 1238 PM MDT Thu Mar 30 2017 ...WINTER STORM WARNING IN EFFECT FROM MIDNIGHT TONIGHT TO 6 AM MDT SATURDAY... The National Weather Service in Riverton has issued a Winter Storm Warning for snow and wind, which is in effect from midnight tonight to 6 AM MDT Saturday. The Winter Storm Watch is no longer in effect. * TIMING...Snow...heavy at times...is expected to develop towards midnight and continue through Friday night for elevations above 6500 feet. Some of the lower elevations like Jeffrey City and Sweetwater Station may see a rain or a rain snow mixture change to snow later Friday into Friday evening with several inches possible. * SNOWFALL...10 to 20 inches over Beaver Rim with 2 to 4 inches elsewhere. * WIND AND VISIBILITY...Northeast 30 to 45 mph combined with heavy snow will likely produce near zero visibility at times in blizzard conditions over Beaver Rim and the Green Mountains and Rattlesnake Range above 6500 feet. * MAIN IMPACT...Travel over Beaver Rim may become impossible by Friday due to heavy snow and 45 mph plus wind gusts. PRECAUTIONARY/PREPAREDNESS ACTIONS... A winter storm warning means significant amounts of snow, and or blowing snow are expected or occurring. This could make travel very hazardous or impossible. If you must travel keep some food, water, and an extra flashlight in your vehicle in case of an emergency. Check the latest road conditions at wyoroad.info or by dialing 5 1 1. && $$ WYZ018-311200- /O.UPG.KRIW.WS.A.0014.170331T1200Z-170401T0900Z/ /O.NEW.KRIW.WS.W.0011.170331T0900Z-170401T1200Z/ Lander Foothills- Including the city of Lander 1238 PM MDT Thu Mar 30 2017 ...WINTER STORM WARNING IN EFFECT FROM 3 AM FRIDAY TO 6 AM MDT SATURDAY... The National Weather Service in Riverton has issued a Winter Storm Warning for snow and wind, which is in effect from 3 AM Friday to 6 AM MDT Saturday. The Winter Storm Watch is no longer in effect. * TIMING...Rain will mix with snow and change over to snow Friday morning and become heavy at times into Friday evening. The higher elevations including Sinks Canyon will likely change to snow after 3 am with other areas not changing over until after 6 am. This storm will be extremely elevation dependent and some of the lowest elevations could change back and forth between rain and snow several times on Friday. * SNOWFALL...10 to 15 inches in Lander with up to 2 feet in Sinks Canyon State Park. Hudson will likely vary from 2 to 5 inches. * VISIBILITY AND WIND...Northeast 10 to 20 mph with gusts to 30 mph in open areas with visibilities under one half mile at times. * MAIN IMPACT...Travel may become difficult with snow covered and snow packed roads. PRECAUTIONARY/PREPAREDNESS ACTIONS... A winter storm warning means significant amounts of snow, and or blowing snow are expected or occurring. This could make travel very hazardous or impossible. If you must travel keep some food, water, and an extra flashlight in your vehicle in case of an emergency. Check the latest road conditions at wyoroad.info or by dialing 5 1 1. && $$ WYZ008-009-311200- /O.NEW.KRIW.WW.Y.0019.170331T0600Z-170401T0600Z/ Bighorn Mountains West-Bighorn Mountains Southeast- 1238 PM MDT Thu Mar 30 2017 ...WINTER WEATHER ADVISORY IN EFFECT FROM MIDNIGHT TONIGHT TO MIDNIGHT MDT FRIDAY NIGHT... The National Weather Service in Riverton has issued a Winter Weather Advisory for snow and wind, which is in effect from midnight tonight to midnight MDT Friday night. * TIMING...Snow will develop overnight and continue through Friday evening before ending. * SNOWFALL...5 to 10 inches. * WIND AND VISIBILITY...Northeast 20 to 35 mph at pass level and in open areas with visibility under one half mile at times due to wind and snow. * MAIN IMPACT...Travel over Granite and Powder River Passes will likely be impacted by slick snow covered roads and limited visibility at times. PRECAUTIONARY/PREPAREDNESS ACTIONS... A winter weather advisory for snow means periods of snow will cause primarily travel difficulties. Be prepared for snow covered and slick roads with limited visibilities. Slow down, and allow extra time to reach your destination. Check the latest road conditions at wyoroad.info or by dialing 5 1 1. && $$ WYZ002-007-311200- /O.NEW.KRIW.WW.Y.0019.170331T0600Z-170401T0600Z/ Absaroka Mountains-Owl Creek and Bridger Mountains- 1238 PM MDT Thu Mar 30 2017 ...WINTER WEATHER ADVISORY IN EFFECT FROM MIDNIGHT TONIGHT TO MIDNIGHT MDT FRIDAY NIGHT... The National Weather Service in Riverton has issued a Winter Weather Advisory for snow and wind, which is in effect from midnight tonight to midnight MDT Friday night. * TIMING...Snow will develop overnight and continue through Friday evening before ending. * SNOWFALL...6 to 12 inches, the higher amounts will be above 7000 to 8000 feet. * WIND AND VISIBILITY...Northeast 20 to 35 mph in open areas with visibility under one half mile at times due to wind and snow. * MAIN IMPACT...Backcountry travellers should be prepared for the wet heavy snow and limited visibility. PRECAUTIONARY/PREPAREDNESS ACTIONS... A winter weather advisory for snow means periods of snow will cause primarily travel difficulties. Be prepared for snow covered and slick roads with limited visibilities. Slow down, and allow extra time to reach your destination. Check the latest road conditions at wyoroad.info or by dialing 5 1 1. && $$ WYZ017-311200- /O.NEW.KRIW.WW.Y.0019.170331T0900Z-170401T0900Z/ Wind River Basin- Including the cities of Riverton and Shoshoni 1238 PM MDT Thu Mar 30 2017 ...WINTER WEATHER ADVISORY IN EFFECT FROM 3 AM FRIDAY TO 3 AM MDT SATURDAY... The National Weather Service in Riverton has issued a Winter Weather Advisory for wind and snow, which is in effect from 3 AM Friday to 3 AM MDT Saturday. * TIMING...Rain will develop tonight with the higher portions above 5500 to 6000 feet changing over to snow after 3 am. As colder air filters in Friday morning, more areas down to around 5000 feet will see periods of snow or mixed rain and snow. When the coldest air arrives Friday evening, all areas that didn't see snow will also see a period of snow Friday evening. This is still a very challenging forecast with a change in temperature of a degree or two making a huge difference. Please stay abreast of the latest forecast for your area. * SNOWFALL...8 to 12 inches around Fort Washakie...3 to 7 inches above 5500 feet elsewhere and generally 2 to 4 inches for elevations of 5000 feet or less. * WIND AND VISIBILITY...North 20 to 30 mph with gusts to 40 mph in open areas will combine with snow at times to limit visibility to under one half mile. * MAIN IMPACT...Roads may be slushy at times, especially during bursts of heavier snow, especially above 5500 feet. PRECAUTIONARY/PREPAREDNESS ACTIONS... A winter weather advisory for snow means periods of snow will cause primarily travel difficulties. Be prepared for snow covered and slick roads with limited visibilities. Slow down, and allow extra time to reach your destination. Check the latest road conditions at wyoroad.info or by dialing 5 1 1. && $$ Skrbac
8 follow-up statements
307 WWUS45 KRIW 310541 WSWRIW URGENT - WINTER WEATHER MESSAGE National Weather Service Riverton WY 1141 PM MDT Thu Mar 30 2017 ...A major winter storm will impact quite a bit of the higher elevations and much of Fremont County through Friday night... .A strong upper level low will bring a return to winter weather for many areas. A very moist flow will move into the area with heavy amounts of rain, snow and rain snow mix depending on elevation and time of day. This is a very challenging forecast for snow levels in the lowest elevations. WYZ014-015-312200- /O.CON.KRIW.BZ.W.0002.000000T0000Z-170401T1200Z/ Wind River Mountains West-Wind River Mountains East- 1141 PM MDT Thu Mar 30 2017 ...BLIZZARD WARNING REMAINS IN EFFECT UNTIL 6 AM MDT SATURDAY... * TIMING...Snow...heavy at times...will to develop overnight and continue through late Friday night. A northeast wind will develop quickly this evening and increase overnight, continuing through Friday. Blizzard conditions are expected over South Pass much of this time. * SNOWFALL...2 to 3 feet. * WIND AND VISIBILITY...Northeast 40 to 60 mph combined with heavy snow will likely produce near zero visibility at times in blizzard conditions. * Main impact...Travel over South Pass may become impossible by later tonight through Friday night due to heavy snow and 50 to 60 mph wind gusts creating zero visibility. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Blizzard Warning means severe winter weather conditions are expected or occurring. Falling and blowing snow with strong winds and poor visibilities are likely. This will lead to whiteout conditions...making travel extremely dangerous. Do not travel. If you must travel...have a winter survival kit with you. If you get stranded...stay with your vehicle. && $$ WYZ019-312200- /O.CON.KRIW.WS.W.0011.170331T0600Z-170401T1200Z/ Green Mountains and Rattlesnake Range- Including the city of Jeffrey City 1141 PM MDT Thu Mar 30 2017 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 6 AM MDT SATURDAY... * TIMING...Snow...heavy at times...is expected to develop around midnight and continue through Friday night for elevations above 6500 feet. Some of the lower elevations like Jeffrey City and Sweetwater Station may see a rain or a rain snow mixture change to snow later Friday into Friday evening with several inches possible. * SNOWFALL...10 to 20 inches over Beaver Rim with 2 to 4 inches elsewhere. * WIND AND VISIBILITY...Northeast 30 to 45 mph combined with heavy snow will likely produce near zero visibility at times in blizzard conditions over Beaver Rim and the Green Mountains and Rattlesnake Range above 6500 feet. * MAIN IMPACT...Travel over Beaver Rim may become impossible by Friday due to heavy snow and 45 mph plus wind gusts. PRECAUTIONARY/PREPAREDNESS ACTIONS... A winter storm warning means significant amounts of snow, and or blowing snow are expected or occurring. This could make travel very hazardous or impossible. If you must travel keep some food, water, and an extra flashlight in your vehicle in case of an emergency. Check the latest road conditions at wyoroad.info or by dialing 5 1 1. && $$ WYZ018-312200- /O.CON.KRIW.WS.W.0011.170331T0900Z-170401T1200Z/ Lander Foothills- Including the city of Lander 1141 PM MDT Thu Mar 30 2017 ...WINTER STORM WARNING REMAINS IN EFFECT FROM 3 AM FRIDAY TO 6 AM MDT SATURDAY... * TIMING...Rain will mix with snow and change over to snow during Friday morning and become heavy at times into Friday evening. The higher elevations including Sinks Canyon will likely change to snow after 3 am with other areas not changing over until after 6 to 9 am. This storm will be extremely elevation dependent and some of the lowest elevations could change back and forth between rain and snow several times on Friday. * SNOWFALL...8 to 15 inches in Lander with up to 2 feet in Sinks Canyon State Park. Hudson will likely vary from 2 to 4 inches. * VISIBILITY AND WIND...Northeast 10 to 20 mph with gusts to 30 mph in open areas with visibilities under one half mile at times. * MAIN IMPACT...Travel may become difficult with snow covered and snow packed roads. PRECAUTIONARY/PREPAREDNESS ACTIONS... A winter storm warning means significant amounts of snow, and or blowing snow are expected or occurring. This could make travel very hazardous or impossible. If you must travel keep some food, water, and an extra flashlight in your vehicle in case of an emergency. Check the latest road conditions at wyoroad.info or by dialing 5 1 1. && $$ WYZ016-312200- /O.EXB.KRIW.WW.Y.0019.170331T0541Z-170401T0000Z/ Upper Wind River Basin- Including the city of Dubois 1141 PM MDT Thu Mar 30 2017 ...WINTER WEATHER ADVISORY IN EFFECT UNTIL 6 PM MDT FRIDAY... The National Weather Service in Riverton has issued a Winter Weather Advisory for Snow, which is in effect until 6 PM MDT Friday. * TIMING...Periods of snow will through today, mixed with rain at times toward Crowheart. * SNOWFALL...3 to 6 inches. * VISIBILITY...Under one half mile at times due to snow. * MAIN IMPACT...Travelers should watch for slick and snow covered roads at times. PRECAUTIONARY/PREPAREDNESS ACTIONS... A winter weather advisory for snow means periods of snow will cause primarily travel difficulties. Be prepared for snow covered and slick roads with limited visibilities. Slow down, and allow extra time to reach your destination. Check the latest road conditions at wyoroad.info or by dialing 5 1 1. && $$ WYZ008-009-312200- /O.CON.KRIW.WW.Y.0019.170331T0600Z-170401T0600Z/ Bighorn Mountains West-Bighorn Mountains Southeast- 1141 PM MDT Thu Mar 30 2017 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL MIDNIGHT MDT FRIDAY NIGHT... * TIMING...Snow will develop overnight and continue through Friday evening before ending. * SNOWFALL...5 to 10 inches. * WIND AND VISIBILITY...Northeast 20 to 35 mph at pass level and in open areas with visibility under one half mile at times due to wind and snow. * MAIN IMPACT...Travel over Granite and Powder River Passes will likely be impacted by slick snow covered roads and limited visibility at times. PRECAUTIONARY/PREPAREDNESS ACTIONS... A winter weather advisory for snow means periods of snow will cause primarily travel difficulties. Be prepared for snow covered and slick roads with limited visibilities. Slow down, and allow extra time to reach your destination. Check the latest road conditions at wyoroad.info or by dialing 5 1 1. && $$ WYZ002-007-312200- /O.CON.KRIW.WW.Y.0019.170331T0600Z-170401T0600Z/ Absaroka Mountains-Owl Creek and Bridger Mountains- 1141 PM MDT Thu Mar 30 2017 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL MIDNIGHT MDT FRIDAY NIGHT... * TIMING...Snow will develop overnight and continue through Friday evening before ending. * SNOWFALL...6 to 12 inches, the higher amounts will be above 7000 to 8000 feet. * WIND AND VISIBILITY...Northeast 20 to 35 mph in open areas with visibility under one half mile at times due to wind and snow. * MAIN IMPACT...Backcountry travellers should be prepared for the wet heavy snow and limited visibility. PRECAUTIONARY/PREPAREDNESS ACTIONS... A winter weather advisory for snow means periods of snow will cause primarily travel difficulties. Be prepared for snow covered and slick roads with limited visibilities. Slow down, and allow extra time to reach your destination. Check the latest road conditions at wyoroad.info or by dialing 5 1 1. && $$ WYZ017-312200- /O.CON.KRIW.WW.Y.0019.170331T0900Z-170401T0900Z/ Wind River Basin- Including the cities of Riverton and Shoshoni 1141 PM MDT Thu Mar 30 2017 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM 3 AM FRIDAY TO 3 AM MDT SATURDAY... * TIMING...Rain will continue tonight with the higher portions above 5500 to 6000 feet changing over to snow after 6 am. As colder air filters in Friday, more areas down to around 5000 feet will see periods of snow or mixed rain and snow. When the coldest air arrives Friday evening, all areas that didn't see snow will also see a period of snow Friday evening. This is still a very challenging forecast with a change in temperature of a degree or two making a huge difference. Please stay abreast of the latest forecast for your area. * SNOWFALL...8 to 12 inches around Fort Washakie...3 to 6 inches above 5500 feet elsewhere and generally 1 to 3 inches for elevations of 5000 feet or less. * WIND AND VISIBILITY...North 20 to 30 mph with gusts to 40 mph in open areas will combine with snow at times to limit visibility to under one half mile. * MAIN IMPACT...Roads may be slushy at times, especially during bursts of heavier snow, especially above 5500 feet. PRECAUTIONARY/PREPAREDNESS ACTIONS... A winter weather advisory for snow means periods of snow will cause primarily travel difficulties. Be prepared for snow covered and slick roads with limited visibilities. Slow down, and allow extra time to reach your destination. Check the latest road conditions at wyoroad.info or by dialing 5 1 1. && $$
833 WWUS45 KRIW 310820 WSWRIW URGENT - WINTER WEATHER MESSAGE National Weather Service Riverton WY 220 AM MDT Fri Mar 31 2017 ...A major winter storm will impact quite a bit of the higher elevations and much of Fremont County through tonight... .A strong upper level low will bring a return to winter weather for many areas. A very moist flow will move into the area with heavy amounts of rain, snow and rain snow mix depending on elevation and time of day. This is a very challenging forecast for snow levels in the lowest elevations. WYZ014-015-312200- /O.CON.KRIW.BZ.W.0002.000000T0000Z-170401T1200Z/ Wind River Mountains West-Wind River Mountains East- 220 AM MDT Fri Mar 31 2017 ...BLIZZARD WARNING REMAINS IN EFFECT UNTIL 6 AM MDT SATURDAY... * TIMING...Snow...heavy at times...will continue through late tonight. A northeast wind will develop increase and continue into this evening. Blizzard conditions are expected over South Pass much of this time. * SNOWFALL...2 to 3 feet. * WIND AND VISIBILITY...Northeast 40 to 60 mph combined with heavy snow will likely produce near zero visibility at times in blizzard conditions. * Main impact...Travel over South Pass may become impossible by later tonight through Friday night due to heavy snow and 50 to 60 mph wind gusts creating zero visibility. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Blizzard Warning means severe winter weather conditions are expected or occurring. Falling and blowing snow with strong winds and poor visibilities are likely. This will lead to whiteout conditions...making travel extremely dangerous. Do not travel. If you must travel...have a winter survival kit with you. If you get stranded...stay with your vehicle. && $$ WYZ019-312200- /O.CON.KRIW.WS.W.0011.000000T0000Z-170401T1200Z/ Green Mountains and Rattlesnake Range- Including the city of Jeffrey City 220 AM MDT Fri Mar 31 2017 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 6 AM MDT SATURDAY... * TIMING...Snow...heavy at times...will continue through Friday night for elevations above 6500 feet. Some of the lower elevations like Jeffrey City and Sweetwater Station may see a rain or a rain snow mixture change to snow later today into this evening with several inches possible. * SNOWFALL...10 to 20 inches over Beaver Rim with 2 to 4 inches elsewhere. * WIND AND VISIBILITY...Northeast 30 to 45 mph combined with heavy snow will likely produce near zero visibility at times in blizzard conditions over Beaver Rim and the Green Mountains and Rattlesnake Range above 6500 feet. * MAIN IMPACT...Travel over Beaver Rim may become impossible by Friday due to heavy snow and 45 mph plus wind gusts. PRECAUTIONARY/PREPAREDNESS ACTIONS... A winter storm warning means significant amounts of snow, and or blowing snow are expected or occurring. This could make travel very hazardous or impossible. If you must travel keep some food, water, and an extra flashlight in your vehicle in case of an emergency. Check the latest road conditions at wyoroad.info or by dialing 5 1 1. && $$ WYZ018-312200- /O.CON.KRIW.WS.W.0011.170331T0900Z-170401T1200Z/ Lander Foothills- Including the city of Lander 220 AM MDT Fri Mar 31 2017 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 6 AM MDT SATURDAY... * TIMING...Rain will mix with snow and change over to snow this morning and become heavy at times into this evening. This storm will be extremely elevation dependent and some of the lowest elevations could change back and forth between rain and snow several times today. * SNOWFALL...8 to 15 inches in Lander with up to 2 feet in Sinks Canyon State Park. Hudson will likely vary from 2 to 4 inches. * VISIBILITY AND WIND...Northeast 10 to 20 mph with gusts to 30 mph in open areas with visibilities under one half mile at times. * MAIN IMPACT...Travel may become difficult with snow covered and snow packed roads. PRECAUTIONARY/PREPAREDNESS ACTIONS... A winter storm warning means significant amounts of snow, and or blowing snow are expected or occurring. This could make travel very hazardous or impossible. If you must travel keep some food, water, and an extra flashlight in your vehicle in case of an emergency. Check the latest road conditions at wyoroad.info or by dialing 5 1 1. && $$ WYZ008-009-312200- /O.CON.KRIW.WW.Y.0019.000000T0000Z-170401T0600Z/ Bighorn Mountains West-Bighorn Mountains Southeast- 220 AM MDT Fri Mar 31 2017 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL MIDNIGHT MDT TONIGHT... * TIMING...Periods of snow will continue into this evening before ending. * SNOWFALL...5 to 10 inches. * WIND AND VISIBILITY...Northeast 20 to 35 mph at pass level and in open areas with visibility under one half mile at times due to wind and snow. * MAIN IMPACT...Travel over Granite and Powder River Passes will likely be impacted by slick snow covered roads and limited visibility at times. PRECAUTIONARY/PREPAREDNESS ACTIONS... A winter weather advisory for snow means periods of snow will cause primarily travel difficulties. Be prepared for snow covered and slick roads with limited visibilities. Slow down, and allow extra time to reach your destination. Check the latest road conditions at wyoroad.info or by dialing 5 1 1. && $$ WYZ002-007-312200- /O.CON.KRIW.WW.Y.0019.000000T0000Z-170401T0600Z/ Absaroka Mountains-Owl Creek and Bridger Mountains- 220 AM MDT Fri Mar 31 2017 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL MIDNIGHT MDT TONIGHT... * TIMING...Periods of snow will continue through this evening before ending. * SNOWFALL...6 to 12 inches, the higher amounts will be above 7000 to 8000 feet. * WIND AND VISIBILITY...Northeast 20 to 35 mph in open areas with visibility under one half mile at times due to wind and snow. * MAIN IMPACT...Backcountry travellers should be prepared for the wet heavy snow and limited visibility. PRECAUTIONARY/PREPAREDNESS ACTIONS... A winter weather advisory for snow means periods of snow will cause primarily travel difficulties. Be prepared for snow covered and slick roads with limited visibilities. Slow down, and allow extra time to reach your destination. Check the latest road conditions at wyoroad.info or by dialing 5 1 1. && $$ WYZ017-312200- /O.CON.KRIW.WW.Y.0019.170331T0900Z-170401T0900Z/ Wind River Basin- Including the cities of Riverton and Shoshoni 220 AM MDT Fri Mar 31 2017 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 3 AM MDT SATURDAY... * TIMING...Rain will continue early this with the higher portions above 5800 feet changing over to snow after 6 am. As colder air filters in today, more areas down to around 5000 feet will see periods of snow or mixed rain and snow. When the coldest air arrives this evening, all areas that didn't see snow will also see a period of snow this evening. This is still a very challenging forecast with a change in temperature of a degree or two making a huge difference. Please stay abreast of the latest forecast for your area. * SNOWFALL...7 to 10 inches around Fort Washakie...2 to 5 inches above 5500 feet elsewhere and generally 1 to 3 inches for elevations of 5000 feet or less. * WIND AND VISIBILITY...North 20 to 30 mph with gusts to 40 mph in open areas will combine with snow at times to limit visibility to under one half mile. * MAIN IMPACT...Roads may be slushy at times, especially during bursts of heavier snow, especially above 5500 feet. PRECAUTIONARY/PREPAREDNESS ACTIONS... A winter weather advisory for snow means periods of snow will cause primarily travel difficulties. Be prepared for snow covered and slick roads with limited visibilities. Slow down, and allow extra time to reach your destination. Check the latest road conditions at wyoroad.info or by dialing 5 1 1. && $$ WYZ016-312200- /O.CON.KRIW.WW.Y.0019.000000T0000Z-170401T0000Z/ Upper Wind River Basin- Including the city of Dubois 220 AM MDT Fri Mar 31 2017 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 6 PM MDT THIS EVENING... * TIMING...Periods of snow will through today, mixed with rain at times toward Crowheart. * SNOWFALL...3 to 6 inches. * VISIBILITY...Under one half mile at times due to snow. * MAIN IMPACT...Travelers should watch for slick and snow covered roads at times. PRECAUTIONARY/PREPAREDNESS ACTIONS... A winter weather advisory for snow means periods of snow will cause primarily travel difficulties. Be prepared for snow covered and slick roads with limited visibilities. Slow down, and allow extra time to reach your destination. Check the latest road conditions at wyoroad.info or by dialing 5 1 1. && $$
420 WWUS45 KRIW 311526 WSWRIW URGENT - WINTER WEATHER MESSAGE National Weather Service Riverton WY 926 AM MDT Fri Mar 31 2017 ...A major winter storm will impact quite a bit of the higher elevations and much of Fremont County through tonight... .A strong upper level low will bring a return to winter weather for many areas. A very moist flow will move into the area with heavy amounts of rain, snow and rain snow mix depending on elevation and time of day. This is a very challenging forecast for snow levels in the lowest elevations. WYZ014-015-312200- /O.CON.KRIW.BZ.W.0002.000000T0000Z-170401T1200Z/ Wind River Mountains West-Wind River Mountains East- 926 AM MDT Fri Mar 31 2017 ...BLIZZARD WARNING REMAINS IN EFFECT UNTIL 6 AM MDT SATURDAY... * TIMING...Snow...heavy at times...will continue through late tonight. A northeast wind will develop increase and continue into this evening. Blizzard conditions are expected over South Pass much of this time. * SNOWFALL...9 to 17 inches of snow has already accumulated across the Wind River Mountains. Expect a snow total of 2 to 3 feet. * WIND AND VISIBILITY...Northeast 40 to 60 mph combined with heavy snow will likely produce near zero visibility at times in blizzard conditions. * Main impact...Highway 28 over South Pass is closed due to heavy snow, 50 to 60 mph wind gusts creating zero visibility, and deep snow drifts. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Blizzard Warning means severe winter weather conditions are expected or occurring. Falling and blowing snow with strong winds and poor visibilities are likely. This will lead to whiteout conditions...making travel extremely dangerous. Do not travel. If you must travel...have a winter survival kit with you. If you get stranded...stay with your vehicle. && $$ WYZ019-312200- /O.CON.KRIW.WS.W.0011.000000T0000Z-170401T1200Z/ Green Mountains and Rattlesnake Range- Including the city of Jeffrey City 926 AM MDT Fri Mar 31 2017 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 6 AM MDT SATURDAY... * TIMING...Snow...heavy at times...will continue through tonight night for elevations above 6500 feet. Some of the lower elevations like Jeffrey City and Sweetwater Station may see a rain or a rain snow mixture change to snow later today into this evening with several inches possible. * SNOWFALL...One inch of snow has fallen so far in Jeffrey City. A snow total of 10 to 20 inches over Beaver Rim with 2 to 4 inches elsewhere is expected. * WIND AND VISIBILITY...Northeast 30 to 45 mph combined with heavy snow will likely produce near zero visibility at times in blizzard conditions over Beaver Rim and the Green Mountains and Rattlesnake Range above 6500 feet. * MAIN IMPACT...Travel over Beaver Rim may become impossible today due to heavy snow and 45 mph plus wind gusts. PRECAUTIONARY/PREPAREDNESS ACTIONS... A winter storm warning means significant amounts of snow, and or blowing snow are expected or occurring. This could make travel very hazardous or impossible. If you must travel keep some food, water, and an extra flashlight in your vehicle in case of an emergency. Check the latest road conditions at wyoroad.info or by dialing 5 1 1. && $$ WYZ018-312200- /O.CON.KRIW.WS.W.0011.000000T0000Z-170401T1200Z/ Lander Foothills- Including the city of Lander 926 AM MDT Fri Mar 31 2017 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 6 AM MDT SATURDAY... * TIMING...Rain and snow will change over to all snow by 12 noon today and become heavy at times into this evening. This storm will be extremely elevation dependent and some of the lowest elevations could change back and forth between rain and snow several times today. * SNOWFALL...The snow has begun to stick in portions of Lander. One inch of snow has already fallen in Hudson. 8 inches of snow has already been reported at the lower end of Sinks Canyon. A snow total of 8 to 15 inches in Lander with up to 2 feet in Sinks Canyon State Park. Hudson will likely vary from 2 to 4 inches. * VISIBILITY AND WIND...Northeast 10 to 20 mph with gusts to 30 mph in open areas with visibilities under one half mile at times. * MAIN IMPACT...Travel may become difficult with snow covered and snow packed roads. PRECAUTIONARY/PREPAREDNESS ACTIONS... A winter storm warning means significant amounts of snow, and or blowing snow are expected or occurring. This could make travel very hazardous or impossible. If you must travel keep some food, water, and an extra flashlight in your vehicle in case of an emergency. Check the latest road conditions at wyoroad.info or by dialing 5 1 1. && $$ WYZ008-009-312200- /O.CON.KRIW.WW.Y.0019.000000T0000Z-170401T0600Z/ Bighorn Mountains West-Bighorn Mountains Southeast- 926 AM MDT Fri Mar 31 2017 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL MIDNIGHT MDT TONIGHT... * TIMING...Periods of snow will continue into this evening before ending. * SNOWFALL...One to five inches of snow has already fallen on the east slope of the Big Horn Mountains along with 1 to 2 inches on the west slope. Expect a total of 5 to 10 inches. * WIND AND VISIBILITY...Northeast 20 to 35 mph at pass level and in open areas with visibility under one half mile at times due to wind and snow. * MAIN IMPACT...Travel over Granite and Powder River Passes will likely be impacted by slick snow covered roads and limited visibility at times. PRECAUTIONARY/PREPAREDNESS ACTIONS... A winter weather advisory for snow means periods of snow will cause primarily travel difficulties. Be prepared for snow covered and slick roads with limited visibilities. Slow down, and allow extra time to reach your destination. Check the latest road conditions at wyoroad.info or by dialing 5 1 1. && $$ WYZ002-007-312200- /O.CON.KRIW.WW.Y.0019.000000T0000Z-170401T0600Z/ Absaroka Mountains-Owl Creek and Bridger Mountains- 926 AM MDT Fri Mar 31 2017 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL MIDNIGHT MDT TONIGHT... * TIMING...Periods of snow will continue through this evening before ending. * SNOWFALL...Up to 10 inches of snow has already fallen over portions of the Absaroka Mountains. Expect a total of 6 to 15 inches, the higher amounts will be above 7000 to 8000 feet. * WIND AND VISIBILITY...Northeast 20 to 35 mph in open areas with visibility under one half mile at times due to wind and snow. * MAIN IMPACT...Backcountry travellers should be prepared for the wet heavy snow and limited visibility. PRECAUTIONARY/PREPAREDNESS ACTIONS... A winter weather advisory for snow means periods of snow will cause primarily travel difficulties. Be prepared for snow covered and slick roads with limited visibilities. Slow down, and allow extra time to reach your destination. Check the latest road conditions at wyoroad.info or by dialing 5 1 1. && $$ WYZ017-312200- /O.CON.KRIW.WW.Y.0019.000000T0000Z-170401T0900Z/ Wind River Basin- Including the cities of Riverton and Shoshoni 926 AM MDT Fri Mar 31 2017 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 3 AM MDT SATURDAY... * TIMING...Rain will continue this morning with the higher elevations above 5500 feet seeing a mixture of rain and snow and then all snow this afternoon. As colder air filters in today, more areas down to around 5000 feet will see periods of snow or mixed rain and snow. When the coldest air arrives this evening, all areas that didn't see snow will also see a period of snow this evening. This is still a very challenging forecast with a change in temperature of a degree or two making a huge difference. Please stay abreast of the latest forecast for your area. * SNOWFALL...7 to 10 inches around Fort Washakie...2 to 5 inches above 5500 feet elsewhere and generally 1 to 3 inches for elevations of 5000 feet or less. * WIND AND VISIBILITY...North 20 to 30 mph with gusts to 40 mph in open areas will combine with snow at times to limit visibility to under one half mile. * MAIN IMPACT...Roads may be slushy at times, especially during bursts of heavier snow, especially above 5500 feet. PRECAUTIONARY/PREPAREDNESS ACTIONS... A winter weather advisory for snow means periods of snow will cause primarily travel difficulties. Be prepared for snow covered and slick roads with limited visibilities. Slow down, and allow extra time to reach your destination. Check the latest road conditions at wyoroad.info or by dialing 5 1 1. && $$ WYZ016-312200- /O.CON.KRIW.WW.Y.0019.000000T0000Z-170401T0000Z/ Upper Wind River Basin- Including the city of Dubois 926 AM MDT Fri Mar 31 2017 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 6 PM MDT THIS EVENING... * TIMING...Periods of snow will through today, mixed with rain at times toward Crowheart. * SNOWFALL...2 inches of snow has fallen in Dubois so far. Expect a snow total of 3 to 6 inches. * VISIBILITY...Under one half mile at times due to snow. * MAIN IMPACT...Travelers should watch for slick and snow covered roads at times. PRECAUTIONARY/PREPAREDNESS ACTIONS... A winter weather advisory for snow means periods of snow will cause primarily travel difficulties. Be prepared for snow covered and slick roads with limited visibilities. Slow down, and allow extra time to reach your destination. Check the latest road conditions at wyoroad.info or by dialing 5 1 1. && $$
934 WWUS45 KRIW 312213 WSWRIW URGENT - WINTER WEATHER MESSAGE National Weather Service Riverton WY 413 PM MDT Fri Mar 31 2017 ...A major winter storm will impact quite a bit of the higher elevations and much of Fremont County through tonight... .A strong upper level low has brought a return to winter weather for many areas. A very moist flow will continue to move into the area with moderate amounts of additional rainfall, snow, and rain snow mix depending on elevation and time of day. This is a very challenging forecast for snow levels in the lowest elevations. WYZ014-015-010600- /O.CON.KRIW.BZ.W.0002.000000T0000Z-170401T1200Z/ Wind River Mountains West-Wind River Mountains East- 413 PM MDT Fri Mar 31 2017 ...BLIZZARD WARNING REMAINS IN EFFECT UNTIL 6 AM MDT SATURDAY... * TIMING...Snow...heavy at times...will continue through late tonight. A very strong northeast wind will continue into this evening. Blizzard conditions are expected over South Pass much of this time. * SNOWFALL...One and a half to 2 and a half feet of snow has fallen over the east slope of the Wind River Mountains and 1 to 5 inches have fallen over the west slope. 9 to 17 inches of snow has already accumulated across the Wind River Mountains. Expect a snow total of 2 to 3 feet over the east slope and 5 to 10 inches on the west slope. * WIND AND VISIBILITY...Northeast 40 to 60 mph combined with heavy snow will continue to produce near zero visibility at times in blizzard conditions. * Main impact...Highway 28 over South Pass is closed due to heavy snow, 50 to 60 mph wind gusts creating zero visibility, and deep snow drifts. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Blizzard Warning means severe winter weather conditions are expected or occurring. Falling and blowing snow with strong winds and poor visibilities are likely. This will lead to whiteout conditions...making travel extremely dangerous. Do not travel. If you must travel...have a winter survival kit with you. If you get stranded...stay with your vehicle. && $$ WYZ019-010600- /O.CON.KRIW.WS.W.0011.000000T0000Z-170401T1200Z/ Green Mountains and Rattlesnake Range- Including the city of Jeffrey City 413 PM MDT Fri Mar 31 2017 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 6 AM MDT SATURDAY... * TIMING...Snow...heavy at times...will continue through tonight night for elevations above 6500 feet. Some of the lower elevations like Jeffrey City and Sweetwater Station may see a rain snow mixture before changing to all snow by early this evening with several inches possible. * SNOWFALL...One inch of snow has fallen so far in Jeffrey City. A snow total of 10 to 20 inches over Beaver Rim with 2 to 4 inches elsewhere is expected. * WIND AND VISIBILITY...Northeast 30 to 45 mph combined with heavy snow will likely produce near zero visibility at times in blizzard conditions over Beaver Rim and the Green Mountains and Rattlesnake Range above 6500 feet. * MAIN IMPACT...Travel over Beaver Rim may become impossible today due to heavy snow and 45 mph plus wind gusts. PRECAUTIONARY/PREPAREDNESS ACTIONS... A winter storm warning means significant amounts of snow, and or blowing snow are expected or occurring. This could make travel very hazardous or impossible. If you must travel keep some food, water, and an extra flashlight in your vehicle in case of an emergency. Check the latest road conditions at wyoroad.info or by dialing 5 1 1. && $$ WYZ018-010600- /O.CON.KRIW.WS.W.0011.000000T0000Z-170401T1200Z/ Lander Foothills- Including the city of Lander 413 PM MDT Fri Mar 31 2017 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 6 AM MDT SATURDAY... * TIMING...Snow will continue to fall this evening, heavy at times. * SNOWFALL...6 inches have fallen so far, although there has been some melting. Hudson has received 4 inches. A snow total of 8 to 15 inches in Lander with up to 2 feet in Sinks Canyon State Park. Hudson will likely vary from 2 to 4 inches. * VISIBILITY AND WIND...Northeast 10 to 20 mph with gusts to 30 mph in open areas with visibilities under one half mile at times. * MAIN IMPACT...Travel may become difficult with snow covered and snow packed roads. PRECAUTIONARY/PREPAREDNESS ACTIONS... A winter storm warning means significant amounts of snow, and or blowing snow are expected or occurring. This could make travel very hazardous or impossible. If you must travel keep some food, water, and an extra flashlight in your vehicle in case of an emergency. Check the latest road conditions at wyoroad.info or by dialing 5 1 1. && $$ WYZ008-009-010600- /O.CON.KRIW.WW.Y.0019.000000T0000Z-170401T0600Z/ Bighorn Mountains West-Bighorn Mountains Southeast- 413 PM MDT Fri Mar 31 2017 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL MIDNIGHT MDT TONIGHT... * TIMING...Periods of snow will continue into this evening before ending. * SNOWFALL...Four to eight inches of snow has already fallen on the east slope of the Big Horn Mountains along with 1 to 4 inches on the west slope. Expect a total of 5 to 10 inches. * WIND AND VISIBILITY...Northeast 20 to 35 mph at pass level and in open areas with visibility under one half mile at times due to wind and snow. * MAIN IMPACT...Travel over Granite and Powder River Passes will likely be impacted by slick snow covered roads and limited visibility at times. PRECAUTIONARY/PREPAREDNESS ACTIONS... A winter weather advisory for snow means periods of snow will cause primarily travel difficulties. Be prepared for snow covered and slick roads with limited visibilities. Slow down, and allow extra time to reach your destination. Check the latest road conditions at wyoroad.info or by dialing 5 1 1. && $$ WYZ002-007-010600- /O.CON.KRIW.WW.Y.0019.000000T0000Z-170401T0600Z/ Absaroka Mountains-Owl Creek and Bridger Mountains- 413 PM MDT Fri Mar 31 2017 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL MIDNIGHT MDT TONIGHT... * TIMING...Periods of snow will continue through this evening before ending. * SNOWFALL...5 to 10 inches have fallen so far. Expect a total of 6 to 15 inches, the higher amounts will be above 7000 to 8000 feet. * WIND AND VISIBILITY...Northeast 20 to 35 mph in open areas with visibility under one half mile at times due to wind and snow. * MAIN IMPACT...Backcountry travellers should be prepared for the wet heavy snow and limited visibility. PRECAUTIONARY/PREPAREDNESS ACTIONS... A winter weather advisory for snow means periods of snow will cause primarily travel difficulties. Be prepared for snow covered and slick roads with limited visibilities. Slow down, and allow extra time to reach your destination. Check the latest road conditions at wyoroad.info or by dialing 5 1 1. && $$ WYZ017-010600- /O.CON.KRIW.WW.Y.0019.000000T0000Z-170401T0900Z/ Wind River Basin- Including the cities of Riverton and Shoshoni 413 PM MDT Fri Mar 31 2017 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 3 AM MDT SATURDAY... * TIMING...Rain will continue for the rest of this afternoon morning with the higher elevations above 5500 feet seeing a mixture of rain and snow and then all snow this afternoon. As colder air filters in this evening, more areas down to around 5000 feet will see periods of snow or mixed rain and snow. When the coldest air arrives later this evening, all areas that didn't see snow will also see a period of snow this evening. This is still a very challenging forecast with a change in temperature of a degree or two making a huge difference. Please stay abreast of the latest forecast for your area. * SNOWFALL...7 to 10 inches around Fort Washakie...2 to 5 inches above 5500 feet elsewhere and generally 1 to 3 inches for elevations of 5000 feet or less. * WIND AND VISIBILITY...North 20 to 30 mph with gusts to 40 mph in open areas will combine with snow at times to limit visibility to under one half mile. * MAIN IMPACT...Roads may be slushy at times, especially during bursts of heavier snow, especially above 5500 feet. PRECAUTIONARY/PREPAREDNESS ACTIONS... A winter weather advisory for snow means periods of snow will cause primarily travel difficulties. Be prepared for snow covered and slick roads with limited visibilities. Slow down, and allow extra time to reach your destination. Check the latest road conditions at wyoroad.info or by dialing 5 1 1. && $$ WYZ016-010000- /O.CON.KRIW.WW.Y.0019.000000T0000Z-170401T0000Z/ Upper Wind River Basin- Including the city of Dubois 413 PM MDT Fri Mar 31 2017 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 6 PM MDT THIS EVENING... * TIMING...Periods of snow will decrease through the rest of this afternoon, mixed with rain at times toward Crowheart. * SNOWFALL...2 inches of snow has fallen in Dubois so far. Expect a snow total of 2 to 3 inches. * VISIBILITY...Under one half mile at times due to snow. * MAIN IMPACT...Travelers should watch for slick and snow covered roads at times. PRECAUTIONARY/PREPAREDNESS ACTIONS... A winter weather advisory for snow means periods of snow will cause primarily travel difficulties. Be prepared for snow covered and slick roads with limited visibilities. Slow down, and allow extra time to reach your destination. Check the latest road conditions at wyoroad.info or by dialing 5 1 1. && $$ TEAM RIVERTON
839 WWUS45 KRIW 312239 WSWRIW URGENT - WINTER WEATHER MESSAGE National Weather Service Riverton WY 439 PM MDT Fri Mar 31 2017 ...A major winter storm will impact quite a bit of the higher elevations and much of Fremont County through tonight... .A strong upper level low has brought a return to winter weather for many areas. A very moist flow will continue to move into the area with moderate amounts of additional rainfall, snow, and rain snow mix depending on elevation and time of day. This is a very challenging forecast for snow levels in the lowest elevations. WYZ016-312345- /O.CAN.KRIW.WW.Y.0019.000000T0000Z-170401T0000Z/ Upper Wind River Basin- Including the city of Dubois 439 PM MDT Fri Mar 31 2017 ...WINTER WEATHER ADVISORY IS CANCELLED... The National Weather Service in Riverton has cancelled the Winter Weather Advisory. The storm that delivered the two inches of snowfall to the Dubois area has exited to the southeast. Therefore, the winter weather advisory has been cancelled. $$ WYZ014-015-010600- /O.CON.KRIW.BZ.W.0002.000000T0000Z-170401T1200Z/ Wind River Mountains West-Wind River Mountains East- 439 PM MDT Fri Mar 31 2017 ...BLIZZARD WARNING REMAINS IN EFFECT UNTIL 6 AM MDT SATURDAY... * TIMING...Snow...heavy at times...will continue through late tonight. A very strong northeast wind will continue into this evening. Blizzard conditions are expected over South Pass much of this time. * SNOWFALL...One and a half to 2 and a half feet of snow has fallen over the east slope of the Wind River Mountains and 1 to 5 inches have fallen over the west slope. 9 to 17 inches of snow has already accumulated across the Wind River Mountains. Expect a snow total of 2 to 3 feet over the east slope and 5 to 10 inches on the west slope. * WIND AND VISIBILITY...Northeast 40 to 60 mph combined with heavy snow will continue to produce near zero visibility at times in blizzard conditions. * Main impact...Highway 28 over South Pass is closed due to heavy snow, 50 to 60 mph wind gusts creating zero visibility, and deep snow drifts. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Blizzard Warning means severe winter weather conditions are expected or occurring. Falling and blowing snow with strong winds and poor visibilities are likely. This will lead to whiteout conditions...making travel extremely dangerous. Do not travel. If you must travel...have a winter survival kit with you. If you get stranded...stay with your vehicle. && $$ WYZ019-010600- /O.CON.KRIW.WS.W.0011.000000T0000Z-170401T1200Z/ Green Mountains and Rattlesnake Range- Including the city of Jeffrey City 439 PM MDT Fri Mar 31 2017 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 6 AM MDT SATURDAY... * TIMING...Snow...heavy at times...will continue through tonight night for elevations above 6500 feet. Some of the lower elevations like Jeffrey City and Sweetwater Station may see a rain snow mixture before changing to all snow by early this evening with several inches possible. * SNOWFALL...One inch of snow has fallen so far in Jeffrey City. A snow total of 10 to 20 inches over Beaver Rim with 2 to 4 inches elsewhere is expected. * WIND AND VISIBILITY...Northeast 30 to 45 mph combined with heavy snow will likely produce near zero visibility at times in blizzard conditions over Beaver Rim and the Green Mountains and Rattlesnake Range above 6500 feet. * MAIN IMPACT...Travel over Beaver Rim may become impossible today due to heavy snow and 45 mph plus wind gusts. PRECAUTIONARY/PREPAREDNESS ACTIONS... A winter storm warning means significant amounts of snow, and or blowing snow are expected or occurring. This could make travel very hazardous or impossible. If you must travel keep some food, water, and an extra flashlight in your vehicle in case of an emergency. Check the latest road conditions at wyoroad.info or by dialing 5 1 1. && $$ WYZ018-010600- /O.CON.KRIW.WS.W.0011.000000T0000Z-170401T1200Z/ Lander Foothills- Including the city of Lander 439 PM MDT Fri Mar 31 2017 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 6 AM MDT SATURDAY... * TIMING...Snow and rain will continue to fall this evening, and may turn to all snow this evening. * SNOWFALL...6 inches have fallen so far, although there has been some melting. Hudson has received 5 inches. A snow total of 6 inches in Lander is expected along with up to 15 inches at elevations just above Lander. 2 feet is expected in Sinks Canyon State Park. * VISIBILITY AND WIND...Northeast 10 to 20 mph with gusts to 30 mph in open areas with visibilities under one half mile at times. * MAIN IMPACT...Travel may become difficult with snow covered and snow packed and slushy roads. PRECAUTIONARY/PREPAREDNESS ACTIONS... A winter storm warning means significant amounts of snow, and or blowing snow are expected or occurring. This could make travel very hazardous or impossible. If you must travel keep some food, water, and an extra flashlight in your vehicle in case of an emergency. Check the latest road conditions at wyoroad.info or by dialing 5 1 1. && $$ WYZ008-009-010600- /O.CON.KRIW.WW.Y.0019.000000T0000Z-170401T0600Z/ Bighorn Mountains West-Bighorn Mountains Southeast- 439 PM MDT Fri Mar 31 2017 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL MIDNIGHT MDT TONIGHT... * TIMING...Periods of snow will continue into this evening before ending. * SNOWFALL...Four to eight inches of snow has already fallen on the east slope of the Big Horn Mountains along with 1 to 4 inches on the west slope. Expect a total of 5 to 10 inches. * WIND AND VISIBILITY...Northeast 20 to 35 mph at pass level and in open areas with visibility under one half mile at times due to wind and snow. * MAIN IMPACT...Travel over Granite and Powder River Passes will likely be impacted by slick snow covered roads and limited visibility at times. PRECAUTIONARY/PREPAREDNESS ACTIONS... A winter weather advisory for snow means periods of snow will cause primarily travel difficulties. Be prepared for snow covered and slick roads with limited visibilities. Slow down, and allow extra time to reach your destination. Check the latest road conditions at wyoroad.info or by dialing 5 1 1. && $$ WYZ002-007-010600- /O.CON.KRIW.WW.Y.0019.000000T0000Z-170401T0600Z/ Absaroka Mountains-Owl Creek and Bridger Mountains- 439 PM MDT Fri Mar 31 2017 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL MIDNIGHT MDT TONIGHT... * TIMING...Periods of snow will continue through this evening before ending. * SNOWFALL...5 to 10 inches have fallen so far. Expect a total of 6 to 15 inches, the higher amounts will be above 7000 to 8000 feet. * WIND AND VISIBILITY...Northeast 20 to 35 mph in open areas with visibility under one half mile at times due to wind and snow. * MAIN IMPACT...Backcountry travellers should be prepared for the wet heavy snow and limited visibility. PRECAUTIONARY/PREPAREDNESS ACTIONS... A winter weather advisory for snow means periods of snow will cause primarily travel difficulties. Be prepared for snow covered and slick roads with limited visibilities. Slow down, and allow extra time to reach your destination. Check the latest road conditions at wyoroad.info or by dialing 5 1 1. && $$ WYZ017-010600- /O.CON.KRIW.WW.Y.0019.000000T0000Z-170401T0900Z/ Wind River Basin- Including the cities of Riverton and Shoshoni 439 PM MDT Fri Mar 31 2017 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 3 AM MDT SATURDAY... * TIMING...Rain will continue for the rest of this afternoon with the higher elevations above 5800 feet seeing a mixture of rain and snow, and then possibly all snow by early this evening. As colder air filters in later this evening, more areas down to around 5500 feet will see periods of snow or mixed rain and snow. * SNOWFALL...A few inches of snow accumulated between Ethete and Kinnear. 1 to 5 inches is expected above 5800 feet. Elsewhere and generally 1 to 3 inches for elevations of 5500 feet or less. * WIND AND VISIBILITY...North 15 to 25 mph with gusts to 40 mph in open areas will combine with snow at times to limit visibility to under one half mile. * MAIN IMPACT...Roads may be slushy at times, especially during bursts of heavier snow, especially above 5800 feet. PRECAUTIONARY/PREPAREDNESS ACTIONS... A winter weather advisory for snow means periods of snow will cause primarily travel difficulties. Be prepared for snow covered and slick roads with limited visibilities. Slow down, and allow extra time to reach your destination. Check the latest road conditions at wyoroad.info or by dialing 5 1 1. && $$ TEAM RIVERTON
251 WWUS45 KRIW 010019 WSWRIW URGENT - WINTER WEATHER MESSAGE National Weather Service Riverton WY 619 PM MDT Fri Mar 31 2017 ...A major winter storm will continue to impact a portion of central and northern Wyoming tonight... WYZ018-010130- /O.CAN.KRIW.WS.W.0011.000000T0000Z-170401T1200Z/ Lander Foothills- Including the city of Lander 619 PM MDT Fri Mar 31 2017 ...WINTER STORM WARNING IS CANCELLED... The National Weather Service in Riverton has cancelled the Winter Storm Warning. A mix of rain and snow will occur tonight with additional snowfall of 1 to 3 inches depending upon your elevation. Roads will be wet to slick in spots. $$ WYZ017-010130- /O.CAN.KRIW.WW.Y.0019.000000T0000Z-170401T0900Z/ Wind River Basin- Including the cities of Riverton and Shoshoni 619 PM MDT Fri Mar 31 2017 ...WINTER WEATHER ADVISORY IS CANCELLED... The National Weather Service in Riverton has cancelled the Winter Weather Advisory. A mix of rain and snow will occur tonight across the area. Snowfall of an inch or two may occur above 6000 feet in basin. Roads will be wet to slick in spots. $$ WYZ014-015-010830- /O.CON.KRIW.BZ.W.0002.000000T0000Z-170401T1200Z/ Wind River Mountains West-Wind River Mountains East- 619 PM MDT Fri Mar 31 2017 ...BLIZZARD WARNING REMAINS IN EFFECT UNTIL 6 AM MDT SATURDAY... * TIMING...Snow...heavy at times...will continue through late tonight. A very strong northeast wind will continue into this evening. Blizzard conditions are expected over South Pass much of this time. * SNOWFALL...One and a half to 2 and a half feet of snow has fallen over the east slope of the Wind River Mountains and 1 to 5 inches have fallen over the west slope. 9 to 17 inches of snow has already accumulated across the Wind River Mountains. Expect a snow total of 2 to 3 feet over the east slope and 5 to 10 inches on the west slope. * WIND AND VISIBILITY...Northeast 40 to 60 mph combined with heavy snow will continue to produce near zero visibility at times in blizzard conditions. * Main impact...Highway 28 over South Pass is closed due to snow, near zero visibility, and blowing and drifting snow. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Blizzard Warning means severe winter weather conditions are expected or occurring. Falling and blowing snow with strong winds and poor visibilities are likely. This will lead to whiteout conditions...making travel extremely dangerous. Do not travel. If you must travel...have a winter survival kit with you. If you get stranded...stay with your vehicle. && $$ WYZ019-010830- /O.CON.KRIW.WS.W.0011.000000T0000Z-170401T1200Z/ Green Mountains and Rattlesnake Range- Including the city of Jeffrey City 619 PM MDT Fri Mar 31 2017 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 6 AM MDT SATURDAY... * TIMING...Snow...heavy at times...will continue through tonight night for elevations above 6500 feet. Some of the lower elevations like Jeffrey City and Sweetwater Station may see a rain snow mixture before changing back to all snow this evening. Another 2 to 4 inches of snow can be expected above 6500 feet. * SNOWFALL...One inch of snow has fallen so far in Jeffrey City. A snow total of 10 to 20 inches over Beaver Rim with 2 to 4 inches elsewhere is expected. * WIND AND VISIBILITY...Northeast 30 to 45 mph combined with heavy snow will likely produce near zero visibility at times in blizzard conditions over Beaver Rim and the Green Mountains and Rattlesnake Range above 6500 feet. * MAIN IMPACT...US 287 between Sweetwater Station junction and Wyoming highway 28 junction is closed. PRECAUTIONARY/PREPAREDNESS ACTIONS... A winter storm warning means significant amounts of snow, and or blowing snow are expected or occurring. This could make travel very hazardous or impossible. If you must travel keep some food, water, and an extra flashlight in your vehicle in case of an emergency. Check the latest road conditions at wyoroad.info or by dialing 5 1 1. && $$ WYZ008-009-010600- /O.CON.KRIW.WW.Y.0019.000000T0000Z-170401T0600Z/ Bighorn Mountains West-Bighorn Mountains Southeast- 619 PM MDT Fri Mar 31 2017 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL MIDNIGHT MDT TONIGHT... * TIMING...Periods of snow will continue into this evening before ending. * SNOWFALL...Four to eight inches of snow has already fallen on the east slope of the Big Horn Mountains along with 1 to 4 inches on the west slope. Expect a total of 5 to 10 inches. * WIND AND VISIBILITY...Northeast 20 to 35 mph at pass level and in open areas with visibility under one half mile at times due to wind and snow. * MAIN IMPACT...Travel over Granite and Powder River Passes will likely be impacted by slick snow covered roads and limited visibility at times. PRECAUTIONARY/PREPAREDNESS ACTIONS... A winter weather advisory for snow means periods of snow will cause primarily travel difficulties. Be prepared for snow covered and slick roads with limited visibilities. Slow down, and allow extra time to reach your destination. Check the latest road conditions at wyoroad.info or by dialing 5 1 1. && $$ WYZ002-007-010600- /O.CON.KRIW.WW.Y.0019.000000T0000Z-170401T0600Z/ Absaroka Mountains-Owl Creek and Bridger Mountains- 619 PM MDT Fri Mar 31 2017 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL MIDNIGHT MDT TONIGHT... * TIMING...Periods of snow will continue through this evening before ending. * SNOWFALL...5 to 10 inches have fallen so far. Expect a total of 6 to 15 inches, the higher amounts will be above 7000 to 8000 feet. * WIND AND VISIBILITY...Northeast 20 to 35 mph in open areas with visibility under one half mile at times due to wind and snow. * MAIN IMPACT...Backcountry travellers should be prepared for the wet heavy snow and limited visibility. PRECAUTIONARY/PREPAREDNESS ACTIONS... A winter weather advisory for snow means periods of snow will cause primarily travel difficulties. Be prepared for snow covered and slick roads with limited visibilities. Slow down, and allow extra time to reach your destination. Check the latest road conditions at wyoroad.info or by dialing 5 1 1. && $$
850 WWUS45 KRIW 010324 WSWRIW URGENT - WINTER WEATHER MESSAGE National Weather Service Riverton WY 924 PM MDT Fri Mar 31 2017 ...A major winter storm will continue to impact a portion of central and northern Wyoming tonight... WYZ002-007>009-010430- /O.CAN.KRIW.WW.Y.0019.000000T0000Z-170401T0600Z/ Absaroka Mountains-Owl Creek and Bridger Mountains- Bighorn Mountains West-Bighorn Mountains Southeast- 924 PM MDT Fri Mar 31 2017 ...WINTER WEATHER ADVISORY IS CANCELLED... The National Weather Service in Riverton has cancelled the Winter Weather Advisory. Snowfall has decreased significantly over the past few hours and will continue to decrease in intensity through the night with perhaps another inch locally when all is said and done. Therefore the Winter Weather Advisory has been cancelled. $$ WYZ014-015-011200- /O.CON.KRIW.BZ.W.0002.000000T0000Z-170401T1200Z/ Wind River Mountains West-Wind River Mountains East- 924 PM MDT Fri Mar 31 2017 ...BLIZZARD WARNING REMAINS IN EFFECT UNTIL 6 AM MDT SATURDAY... * TIMING...Snow...heavy at times...will continue overnight. A very strong northeast wind will continue into this evening. Blizzard conditions are expected over South Pass much of this time. * SNOWFALL...One and a half to 2 and a half feet of snow has fallen over the east slope of the Wind River Mountains and 1 to 5 inches have fallen over the west slope. 9 to 17 inches of snow has already accumulated across the Wind River Mountains. Expect a snow total of 2 to 3 feet over the east slope and 5 to 10 inches on the west slope. * WIND AND VISIBILITY...Northeast 30 to 50 mph combined with heavy snow will continue to produce near zero visibility at times in blizzard conditions. * Main impact...Highway 28 over South Pass is closed due to snow, near zero visibility, and blowing and drifting snow. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Blizzard Warning means severe winter weather conditions are expected or occurring. Falling and blowing snow with strong winds and poor visibilities are likely. This will lead to whiteout conditions...making travel extremely dangerous. Do not travel. If you must travel...have a winter survival kit with you. If you get stranded...stay with your vehicle. && $$ WYZ019-011200- /O.CON.KRIW.WS.W.0011.000000T0000Z-170401T1200Z/ Green Mountains and Rattlesnake Range- Including the city of Jeffrey City 924 PM MDT Fri Mar 31 2017 ...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 6 AM MDT SATURDAY... * TIMING...Snow...heavy at times...will continue overnight for elevations above 6500 feet. Some of the lower elevations like Jeffrey City and Sweetwater Station may see a rain snow mixture before changing back to all snow this evening. Another 2 to 4 inches of snow can be expected above 6500 feet. * SNOWFALL...One inch of snow has fallen so far in Jeffrey City. A snow total of 10 to 20 inches over Beaver Rim with 2 to 4 inches elsewhere is expected. * WIND AND VISIBILITY...Northeast 30 to 45 mph combined with heavy snow will likely produce near zero visibility at times in blizzard conditions over Beaver Rim and the Green Mountains and Rattlesnake Range above 6500 feet. * MAIN IMPACT...US 287 between Sweetwater Station junction and Wyoming highway 28 junction is closed. PRECAUTIONARY/PREPAREDNESS ACTIONS... A winter storm warning means significant amounts of snow, and or blowing snow are expected or occurring. This could make travel very hazardous or impossible. If you must travel keep some food, water, and an extra flashlight in your vehicle in case of an emergency. Check the latest road conditions at wyoroad.info or by dialing 5 1 1. && $$
691 WWUS45 KRIW 010731 WSWRIW URGENT - WINTER WEATHER MESSAGE National Weather Service Riverton WY 131 AM MDT Sat Apr 1 2017 WYZ014-015-010845- /O.CAN.KRIW.BZ.W.0002.000000T0000Z-170401T1200Z/ Wind River Mountains West-Wind River Mountains East- 131 AM MDT Sat Apr 1 2017 ...BLIZZARD WARNING IS CANCELLED... The National Weather Service in Riverton has cancelled the Blizzard Warning. Snowfall and winds are decreasing across the warned area and will continue to decrease through this morning. Additional snowfall accumulations will be very light, therefore the Blizzard Warning will be cancelled. However, South Pass will remain closed through the morning hours. $$ WYZ019-010845- /O.CAN.KRIW.WS.W.0011.000000T0000Z-170401T1200Z/ Green Mountains and Rattlesnake Range- Including the city of Jeffrey City 131 AM MDT Sat Apr 1 2017 ...WINTER STORM WARNING IS CANCELLED... The National Weather Service in Riverton has cancelled the Winter Storm Warning. Snowfall is decreasing across the warned area and will continue to decrease through this morning. Additional snowfall accumulations will be very light, therefore the Winter Storm Warning will be cancelled. However, South Pass will remain closed through the morning hours. $$
The office that day
Everything else NWS Riverton, WY issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Mar 30, 12:38 PM MDT | Winter Storm Warning | RIW | Fremont, Natrona, Sweetwater | 37 hr |
| Mar 30, 12:38 PM MDT | Winter Weather Advisory | RIW | Big Horn, Fremont, Hot Springs, Johnson, Natrona, Park and 1 more | 33 hr |
Nearby
Blizzard Warnings in Wyoming, 2017Every blizzard warning in 2017
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.