Alert archive / Wyoming / High Wind Warnings in 2026
High Wind Warning 3, NWS Riverton, WY
NWS Riverton, WY issued this high wind warning at Feb 23, 2026, 12:45 AM MST for 5 counties in Wyoming. It took effect at Feb 23, 2026, 2:00 PM MST. It was in force for 27 hr. No storm report in the archive falls inside the area while it was in force.
The area
The counties it named.
The facts
- Issued
- Feb 23, 2026, 12:45 AM MST (07:45 UTC)
- In effect from
- Feb 23, 2026, 2:00 PM MST
- Expired
- Feb 24, 2026, 5:00 PM MST
- In force
- 27 hr
- Issued by
- NWS Riverton, WY
Counties Fremont County, WY, Hot Springs County, WY, Johnson County, WY, Park County, WY, Sublette County, WY
The radar
The Riverton/Lander radar (KRIW), 63 km from the middle of the area, began a volume at 07:47 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.
The nearest sounding before it
Riverton, WY (KRIW), launched 00:00Z, 7.8 hours before the alert went out and 64 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
- 2971 m above ground
- 0-6 km bulk shear
- 66 kt
- 0-1 km storm-relative helicity
- 83 m²/s²
- 0-3 km storm-relative helicity
- 191 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
414 WWUS75 KRIW 230745 NPWRIW URGENT - WEATHER MESSAGE National Weather Service Riverton WY 1245 AM MST Mon Feb 23 2026 WYZ002-232245- /O.UPG.KRIW.HW.A.0003.260224T0600Z-260225T0000Z/ /O.NEW.KRIW.HW.W.0003.260223T2100Z-260224T1800Z/ Absaroka Mountains- 1245 AM MST Mon Feb 23 2026 ...HIGH WIND WARNING IN EFFECT FROM 2 PM THIS AFTERNOON TO 11 AM MST TUESDAY... * WHAT...West winds 25 to 35 mph with gusts up to 70 mph expected. * WHERE...Absaroka Mountains. * WHEN...From 2 PM this afternoon to 11 AM MST Tuesday. * IMPACTS...Travel could be difficult, especially for high profile vehicles. * ADDITIONAL DETAILS...The strongest wind gusts will occur over exposed ridges in the eastern half of the Absaroka Range and along Wyoming Highway 296 over Chief Joseph Pass PRECAUTIONARY/PREPAREDNESS ACTIONS... Use caution if you must drive. && $$ WYZ003-232245- /O.UPG.KRIW.HW.A.0003.260224T0600Z-260225T0000Z/ /O.NEW.KRIW.HW.W.0003.260223T2100Z-260224T1300Z/ Cody Foothills- Including the cities of Clark, Meeteetse, and Cody 1245 AM MST Mon Feb 23 2026 ...HIGH WIND WARNING IN EFFECT FROM 2 PM THIS AFTERNOON TO 6 AM MST TUESDAY... * WHAT...Southwest winds 20 to 30 mph with gusts up to 65 mph expected. * WHERE...Cody Foothills. * WHEN...From 2 PM this afternoon to 6 AM MST Tuesday. Areas near Clark will be impacted first, with areas west and southwest of Cody being impacted after 5PM. * IMPACTS...Travel could be difficult, especially for high profile vehicles traveling Wyoming Highway 120 to the north and south of Cody. * ADDITIONAL DETAILS...The strongest wind gusts occur around Clark and potentially in areas just south of Cody to Meeteetse Rim along Wyoming Highway 120. PRECAUTIONARY/PREPAREDNESS ACTIONS... Use caution if you must drive. && $$ WYZ015-016-232245- /O.UPG.KRIW.HW.A.0003.260224T0600Z-260225T0000Z/ /O.NEW.KRIW.HW.W.0003.260224T0600Z-260225T0000Z/ Wind River Mountains East-Upper Wind River Basin- Including the cities of Dubois 1245 AM MST Mon Feb 23 2026 ...HIGH WIND WARNING IN EFFECT FROM 11 PM THIS EVENING TO 5 PM MST TUESDAY... * WHAT...West winds 30 to 40 mph with gusts up to 75 mph expected over Red Canyon/South Pass; West-northwest winds 20 to 30 mph with gusts up to 60 mph expected near Dubois. * WHERE...Upper Wind River Basin and Wind River Mountains East. * WHEN...From 11 PM this evening to 5 PM MST Tuesday. * IMPACTS...Travel could be difficult, especially for high profile vehicles traveling Wyoming Highway 28 around Red Canyon. * ADDITIONAL DETAILS...Wind gusts 50 to 60 mph are possible in Dubois and the surrounding valley, while gusts around Red Canyon near South Pass could see gusts around 75 mph. PRECAUTIONARY/PREPAREDNESS ACTIONS... Use caution if you must drive. && $$ For more information from the National Weather Service, visit https://weather.gov/riw/ . TL
5 follow-up statements
678 WWUS75 KRIW 230956 NPWRIW URGENT - WEATHER MESSAGE National Weather Service Riverton WY 256 AM MST Mon Feb 23 2026 WYZ015-016-240100- /O.NEW.KRIW.HW.A.0004.260225T1200Z-260226T0300Z/ /O.CON.KRIW.HW.W.0003.260224T0600Z-260225T0000Z/ Wind River Mountains East-Upper Wind River Basin- Including the cities of Dubois 256 AM MST Mon Feb 23 2026 ...HIGH WIND WARNING REMAINS IN EFFECT FROM 11 PM THIS EVENING TO 5 PM MST TUESDAY... ...HIGH WIND WATCH IN EFFECT FROM LATE TUESDAY NIGHT THROUGH WEDNESDAY EVENING... * WHAT...West winds 30 to 40 mph with gusts up to 75 mph expected over Red Canyon/South Pass; West-northwest winds 20 to 30 mph with gusts up to 60 mph expected near Dubois. * WHERE...Upper Wind River Basin and Wind River Mountains East. * WHEN...For the High Wind Warning, from 11 PM this evening to 5 PM MST Tuesday. For the High Wind Watch, from 5 AM MST Wednesday morning through 8 PM MST Wednesday evening. * IMPACTS...Travel could be difficult, especially for high profile vehicles traveling Wyoming Highway 28 around Red Canyon and US20/26 near Dubois. * ADDITIONAL DETAILS...Wind gusts 50 to 60 mph are possible in Dubois and the surrounding valley, while gusts around Red Canyon near South Pass could see gusts around 75 mph. PRECAUTIONARY/PREPAREDNESS ACTIONS... Use caution if you must drive. && $$ WYZ002-240100- /O.CON.KRIW.HW.W.0003.260223T2100Z-260224T1800Z/ Absaroka Mountains- 256 AM MST Mon Feb 23 2026 ...HIGH WIND WARNING REMAINS IN EFFECT FROM 2 PM THIS AFTERNOON TO 11 AM MST TUESDAY... * WHAT...West winds 25 to 35 mph with gusts up to 70 mph expected. * WHERE...Absaroka Mountains. * WHEN...From 2 PM this afternoon to 11 AM MST Tuesday. * IMPACTS...Travel could be difficult, especially for high profile vehicles. * ADDITIONAL DETAILS...The strongest wind gusts will occur over exposed ridges in the eastern half of the Absaroka Range and along Wyoming Highway 296 over Chief Joseph Pass PRECAUTIONARY/PREPAREDNESS ACTIONS... Use caution if you must drive. && $$ WYZ003-240100- /O.CON.KRIW.HW.W.0003.260223T2100Z-260224T1300Z/ Cody Foothills- Including the cities of Clark, Meeteetse, and Cody 256 AM MST Mon Feb 23 2026 ...HIGH WIND WARNING REMAINS IN EFFECT FROM 2 PM THIS AFTERNOON TO 6 AM MST TUESDAY... * WHAT...Southwest winds 20 to 30 mph with gusts up to 65 mph expected. * WHERE...Cody Foothills. * WHEN...From 2 PM this afternoon to 6 AM MST Tuesday. Areas near Clark will be impacted first, with areas west and southwest of Cody being impacted after 5PM. * IMPACTS...Travel could be difficult, especially for high profile vehicles traveling Wyoming Highway 120 to the north and south of Cody. * ADDITIONAL DETAILS...The strongest wind gusts occur around Clark and potentially in areas just south of Cody to Meeteetse Rim along Wyoming Highway 120. PRECAUTIONARY/PREPAREDNESS ACTIONS... Use caution if you must drive. && $$ WYZ017-240100- /O.NEW.KRIW.HW.A.0004.260225T1500Z-260226T0000Z/ Wind River Basin- Including the cities of Riverton and Shoshoni 256 AM MST Mon Feb 23 2026 ...HIGH WIND WATCH IN EFFECT FROM WEDNESDAY MORNING THROUGH WEDNESDAY AFTERNOON... * WHAT...West winds 25 to 35 mph with gusts up to 60 mph possible. * WHERE...Wind River Basin. * WHEN...From 8 AM MST Wednesday morning through 5PM MST Wednesday evening. * IMPACTS...Travel could be difficult, especially for high profile vehicles. * ADDITIONAL DETAILS...The strongest winds are expected to occur from Riverton to Fort Washakie and northwest. PRECAUTIONARY/PREPAREDNESS ACTIONS... Use caution if you must drive. && $$ WYZ019-020-240100- /O.NEW.KRIW.HW.A.0004.260225T1500Z-260226T0000Z/ Green Mountains and Rattlesnake Range-Natrona County Lower Elevations- Including the cities of Casper and Jeffrey City 256 AM MST Mon Feb 23 2026 ...HIGH WIND WATCH IN EFFECT FROM WEDNESDAY MORNING THROUGH WEDNESDAY AFTERNOON... * WHAT...West winds 30 to 40 mph with gusts up to 60 mph across lower elevations of Natrona County; West winds 30 to 40 mph with gusts up to 70 mph across the Green Mountains and Rattlesnake Range. * WHERE...Green Mountains and Rattlesnake Range and Natrona County Lower Elevations. * WHEN...From 8 AM MST Wednesday morning through 5 PM MST Wednesday evening. * IMPACTS...Travel could be difficult, especially for high profile vehicles. * ADDITIONAL DETAILS...The strongest wind gusts are expected to occur along Wyoming Highway 287 from Jeffery City to Muddy Gap, as well as Highway 258 on the south side of Casper. PRECAUTIONARY/PREPAREDNESS ACTIONS... Use caution if you must drive. && $$ WYZ027>030-240100- /O.NEW.KRIW.HW.A.0004.260225T1500Z-260226T0000Z/ South Lincoln County-Rock Springs and Green River-Flaming Gorge- East Sweetwater County- Including the cities of Wamsutter, Green River, Cokeville, Rock Springs, and Kemmerer 256 AM MST Mon Feb 23 2026 ...HIGH WIND WATCH IN EFFECT FROM WEDNESDAY MORNING THROUGH WEDNESDAY AFTERNOON... * WHAT...West winds 30 to 35 mph with gusts up to 65 mph possible across Sweetwater County; West winds of 25 to 30 mph with gusts up to 60 mph possible across southern Lincoln County. * WHERE...East Sweetwater County, Flaming Gorge, Rock Springs and Green River, and South Lincoln County. * WHEN...From 8 AM MST Wednesday morning through 5 PM MST Wednesday evening. * IMPACTS...Travel could be difficult, especially for high profile vehicles. * ADDITIONAL DETAILS...The strongest winds are expected to occur in an area roughly from Green River and Rock Springs to Point of Rocks, including I-80. PRECAUTIONARY/PREPAREDNESS ACTIONS... Use caution if you must drive. && $$ For more information from the National Weather Service, visit https://weather.gov/riw/ . Gerhardt
700 WWUS75 KRIW 231856 NPWRIW URGENT - WEATHER MESSAGE National Weather Service Riverton WY 1156 AM MST Mon Feb 23 2026 WYZ010-241300- /O.EXB.KRIW.HW.W.0003.260224T0300Z-260224T1300Z/ Northeast Johnson County- Including the cities of Buffalo 1156 AM MST Mon Feb 23 2026 ...HIGH WIND WARNING IN EFFECT FROM 8 PM THIS EVENING TO 6 AM MST TUESDAY... * WHAT...Southwest winds 25 to 35 mph with gusts up to 60 mph possible. * WHERE...Northeast Johnson County. * WHEN...From 8 PM this evening to 6 AM MST Tuesday. * IMPACTS...Sudden strong west winds could make travel difficult, especially for high profile vehicles. * ADDITIONAL DETAILS...There is a 60 percent chance of strong winds to 60 mph, mainly for the area around Buffalo, including I-90. PRECAUTIONARY/PREPAREDNESS ACTIONS... Use caution if you must drive. && $$ WYZ015-016-241400- /O.CON.KRIW.HW.W.0003.260224T0600Z-260225T0000Z/ /O.CON.KRIW.HW.A.0004.260225T1200Z-260226T0300Z/ Wind River Mountains East-Upper Wind River Basin- Including the cities of Dubois 1156 AM MST Mon Feb 23 2026 ...HIGH WIND WARNING REMAINS IN EFFECT FROM 11 PM THIS EVENING TO 5 PM MST TUESDAY... ...HIGH WIND WATCH REMAINS IN EFFECT FROM LATE TUESDAY NIGHT THROUGH WEDNESDAY EVENING... * WHAT...West winds 30 to 40 mph with gusts up to 75 mph expected over Red Canyon/South Pass; West-northwest winds 20 to 30 mph with gusts up to 60 mph expected near Dubois. * WHERE...Upper Wind River Basin and Wind River Mountains East. * WHEN...For the High Wind Warning, from 11 PM this evening to 5 PM MST Tuesday. For the High Wind Watch, from 5 AM MST Wednesday morning through 8 PM MST Wednesday evening. * IMPACTS...Travel could be difficult, especially for high profile vehicles traveling Wyoming Highway 28 around Red Canyon and US20/26 near Dubois. * ADDITIONAL DETAILS...Wind gusts 50 to 60 mph are possible in Dubois and the surrounding valley, while gusts around Red Canyon near South Pass could see gusts around 75 mph. PRECAUTIONARY/PREPAREDNESS ACTIONS... Use caution if you must drive. && $$ WYZ002-241400- /O.CON.KRIW.HW.W.0003.260223T2100Z-260224T1800Z/ Absaroka Mountains- 1156 AM MST Mon Feb 23 2026 ...HIGH WIND WARNING REMAINS IN EFFECT UNTIL 11 AM MST TUESDAY... * WHAT...West winds 25 to 35 mph with gusts up to 65 mph expected. * WHERE...Absaroka Mountains. * WHEN...Until 11 AM MST Tuesday. * IMPACTS...Travel could be difficult, especially for high profile vehicles. * ADDITIONAL DETAILS...The strongest wind gusts will occur over exposed ridges in the eastern half of the Absaroka Range and along Wyoming Highway 296 over Chief Joseph Pass. PRECAUTIONARY/PREPAREDNESS ACTIONS... Use caution if you must drive. && $$ WYZ003-241300- /O.CON.KRIW.HW.W.0003.260223T2100Z-260224T1300Z/ Cody Foothills- Including the cities of Meeteetse, Clark, and Cody 1156 AM MST Mon Feb 23 2026 ...HIGH WIND WARNING REMAINS IN EFFECT UNTIL 6 AM MST TUESDAY... * WHAT...Southwest winds 20 to 30 mph with gusts up to 60 mph expected. * WHERE...Cody Foothills. * WHEN...From 2 PM this afternoon to 6 AM MST Tuesday. Areas near Clark will be impacted first, with areas west and southwest of Cody being impacted after 5PM. * IMPACTS...Travel could be difficult, especially for high profile vehicles traveling Wyoming Highway 120 to the north and south of Cody. * ADDITIONAL DETAILS...The strongest wind gusts occur around Clark and potentially in areas just south of Cody to Meeteetse Rim along Wyoming Highway 120. PRECAUTIONARY/PREPAREDNESS ACTIONS... Use caution if you must drive. && $$ WYZ017-241400- /O.CON.KRIW.HW.A.0004.260225T1500Z-260226T0000Z/ Wind River Basin- Including the cities of Riverton and Shoshoni 1156 AM MST Mon Feb 23 2026 ...HIGH WIND WATCH REMAINS IN EFFECT FROM WEDNESDAY MORNING THROUGH WEDNESDAY AFTERNOON... * WHAT...West winds 25 to 35 mph with gusts up to 60 mph possible. * WHERE...Wind River Basin. * WHEN...From 8 AM MST Wednesday morning through 5PM MST Wednesday evening. * IMPACTS...Travel could be difficult, especially for high profile vehicles. * ADDITIONAL DETAILS...The strongest winds are expected to occur from Riverton to Fort Washakie and northwest. PRECAUTIONARY/PREPAREDNESS ACTIONS... Use caution if you must drive. && $$ WYZ019-020-241400- /O.CON.KRIW.HW.A.0004.260225T1500Z-260226T0000Z/ Green Mountains and Rattlesnake Range-Natrona County Lower Elevations- Including the cities of Jeffrey City and Casper 1156 AM MST Mon Feb 23 2026 ...HIGH WIND WATCH REMAINS IN EFFECT FROM WEDNESDAY MORNING THROUGH WEDNESDAY AFTERNOON... * WHAT...West winds 30 to 40 mph with gusts up to 60 mph across lower elevations of Natrona County; West winds 30 to 40 mph with gusts up to 70 mph across the Green Mountains and Rattlesnake Range. * WHERE...Green Mountains and Rattlesnake Range and Natrona County Lower Elevations. * WHEN...From 8 AM MST Wednesday morning through 5 PM MST Wednesday evening. * IMPACTS...Travel could be difficult, especially for high profile vehicles. * ADDITIONAL DETAILS...The strongest wind gusts are expected to occur along Wyoming Highway 287 from Jeffery City to Muddy Gap, as well as Highway 258 on the south side of Casper. PRECAUTIONARY/PREPAREDNESS ACTIONS... Use caution if you must drive. && $$ WYZ027>030-241400- /O.CON.KRIW.HW.A.0004.260225T1500Z-260226T0000Z/ South Lincoln County-Rock Springs and Green River-Flaming Gorge- East Sweetwater County- Including the cities of Kemmerer, Cokeville, Green River, Wamsutter, and Rock Springs 1156 AM MST Mon Feb 23 2026 ...HIGH WIND WATCH REMAINS IN EFFECT FROM WEDNESDAY MORNING THROUGH WEDNESDAY AFTERNOON... * WHAT...West winds 30 to 35 mph with gusts up to 65 mph possible across Sweetwater County; West winds of 25 to 30 mph with gusts up to 60 mph possible across southern Lincoln County. * WHERE...East Sweetwater County, Flaming Gorge, Rock Springs and Green River, and South Lincoln County. * WHEN...From 8 AM MST Wednesday morning through 5 PM MST Wednesday evening. * IMPACTS...Travel could be difficult, especially for high profile vehicles. * ADDITIONAL DETAILS...The strongest winds are expected to occur in an area roughly from Green River and Rock Springs to Point of Rocks, including I-80. PRECAUTIONARY/PREPAREDNESS ACTIONS... Use caution if you must drive. && $$ For more information from the National Weather Service, visit https://weather.gov/riw/ . Wittmann
117 WWUS75 KRIW 241156 NPWRIW URGENT - WEATHER MESSAGE National Weather Service Riverton WY 456 AM MST Tue Feb 24 2026 WYZ003-010-241300- /O.CAN.KRIW.HW.W.0003.000000T0000Z-260224T1300Z/ Cody Foothills-Northeast Johnson County- Including the cities of Buffalo, Cody, Clark, and Meeteetse 456 AM MST Tue Feb 24 2026 ...HIGH WIND WARNING IS CANCELLED... Winds have been decreasing a couple of hours earlier than expected. Thus, the High Wind Warning will be cancelled. $$ WYZ015-016-250000- /O.CON.KRIW.HW.W.0003.000000T0000Z-260225T0000Z/ /O.CON.KRIW.HW.A.0004.260225T1200Z-260226T0300Z/ Wind River Mountains East-Upper Wind River Basin- Including the cities of Dubois 456 AM MST Tue Feb 24 2026 ...HIGH WIND WARNING REMAINS IN EFFECT UNTIL 5 PM MST THIS AFTERNOON... ...HIGH WIND WATCH REMAINS IN EFFECT FROM LATE TONIGHT THROUGH WEDNESDAY EVENING... * WHAT...West winds 30 to 40 mph with gusts up to 75 mph expected over Red Canyon/South Pass; West-northwest winds 20 to 30 mph with gusts up to 60 mph expected near Dubois. * WHERE...Upper Wind River Basin and Wind River Mountains East. * WHEN...For the High Wind Warning, from 11 PM this evening to 5 PM MST Tuesday. For the High Wind Watch, from 5 AM MST Wednesday morning through 8 PM MST Wednesday evening. * IMPACTS...Travel could be difficult, especially for high profile vehicles traveling Wyoming Highway 28 around Red Canyon and US20/26 near Dubois. * ADDITIONAL DETAILS...Wind gusts 50 to 60 mph are possible in Dubois and the surrounding valley, while gusts around Red Canyon near South Pass could see gusts around 75 mph. PRECAUTIONARY/PREPAREDNESS ACTIONS... Use caution if you must drive. && $$ WYZ002-241800- /O.CON.KRIW.HW.W.0003.000000T0000Z-260224T1800Z/ Absaroka Mountains- 456 AM MST Tue Feb 24 2026 ...HIGH WIND WARNING REMAINS IN EFFECT UNTIL 11 AM MST THIS MORNING... * WHAT...West winds 25 to 35 mph with gusts up to 65 mph. * WHERE...Absaroka Mountains. * WHEN...Until 11 AM MST this morning. * IMPACTS...Travel could be difficult, especially for high profile vehicles. * ADDITIONAL DETAILS...The strongest wind gusts will occur over exposed ridges in the eastern half of the Absaroka Range and along Wyoming Highway 296 over Chief Joseph Pass. PRECAUTIONARY/PREPAREDNESS ACTIONS... Use caution if you must drive. && $$ WYZ017-250000- /O.CON.KRIW.HW.A.0004.260225T1500Z-260226T0000Z/ Wind River Basin- Including the cities of Riverton and Shoshoni 456 AM MST Tue Feb 24 2026 ...HIGH WIND WATCH REMAINS IN EFFECT FROM WEDNESDAY MORNING THROUGH WEDNESDAY AFTERNOON... * WHAT...West winds 25 to 35 mph with gusts up to 60 mph possible. * WHERE...Wind River Basin. * WHEN...From 8 AM MST Wednesday morning through 5PM MST Wednesday evening. * IMPACTS...Travel could be difficult, especially for high profile vehicles. * ADDITIONAL DETAILS...The strongest winds are expected to occur from Riverton to Fort Washakie and northwest. PRECAUTIONARY/PREPAREDNESS ACTIONS... Use caution if you must drive. && $$ WYZ019-020-250000- /O.CON.KRIW.HW.A.0004.260225T1500Z-260226T0000Z/ Green Mountains and Rattlesnake Range-Natrona County Lower Elevations- Including the cities of Jeffrey City and Casper 456 AM MST Tue Feb 24 2026 ...HIGH WIND WATCH REMAINS IN EFFECT FROM WEDNESDAY MORNING THROUGH WEDNESDAY AFTERNOON... * WHAT...West winds 30 to 40 mph with gusts up to 60 mph across lower elevations of Natrona County; West winds 30 to 40 mph with gusts up to 70 mph across the Green Mountains and Rattlesnake Range. * WHERE...Green Mountains and Rattlesnake Range and Natrona County Lower Elevations. * WHEN...From 8 AM MST Wednesday morning through 5 PM MST Wednesday evening. * IMPACTS...Travel could be difficult, especially for high profile vehicles. * ADDITIONAL DETAILS...The strongest wind gusts are expected to occur along Wyoming Highway 287 from Jeffery City to Muddy Gap, as well as Highway 258 on the south side of Casper. PRECAUTIONARY/PREPAREDNESS ACTIONS... Use caution if you must drive. && $$ WYZ027>030-250000- /O.CON.KRIW.HW.A.0004.260225T1500Z-260226T0000Z/ South Lincoln County-Rock Springs and Green River-Flaming Gorge- East Sweetwater County- Including the cities of Cokeville, Rock Springs, Green River, Wamsutter, and Kemmerer 456 AM MST Tue Feb 24 2026 ...HIGH WIND WATCH REMAINS IN EFFECT FROM WEDNESDAY MORNING THROUGH WEDNESDAY AFTERNOON... * WHAT...West winds 30 to 35 mph with gusts up to 65 mph possible across Sweetwater County; West winds of 25 to 30 mph with gusts up to 60 mph possible across southern Lincoln County. * WHERE...East Sweetwater County, Flaming Gorge, Rock Springs and Green River, and South Lincoln County. * WHEN...From 8 AM MST Wednesday morning through 5 PM MST Wednesday evening. * IMPACTS...Travel could be difficult, especially for high profile vehicles. * ADDITIONAL DETAILS...The strongest winds are expected to occur in an area roughly from Green River and Rock Springs to Point of Rocks, including I-80. PRECAUTIONARY/PREPAREDNESS ACTIONS... Use caution if you must drive. && $$ For more information from the National Weather Service, visit https://weather.gov/riw/ . TL
823 WWUS75 KRIW 241744 NPWRIW URGENT - WEATHER MESSAGE National Weather Service Riverton WY 1044 AM MST Tue Feb 24 2026 WYZ016-251400- /O.CAN.KRIW.HW.W.0003.000000T0000Z-260225T0000Z/ /O.CON.KRIW.HW.A.0004.260225T1200Z-260226T0300Z/ Upper Wind River Basin- Including the cities of Dubois 1044 AM MST Tue Feb 24 2026 ...HIGH WIND WATCH REMAINS IN EFFECT FROM LATE TONIGHT THROUGH WEDNESDAY EVENING... ...HIGH WIND WARNING IS CANCELLED... * WHAT...West-northwest winds 20 to 30 mph with gusts up to 60 mph. * WHERE...Upper Wind River Basin. * WHEN...From late tonight through Wednesday evening. * IMPACTS...Travel could be difficult, especially for high profile vehicles traveling US20/26 near Dubois. PRECAUTIONARY/PREPAREDNESS ACTIONS... Monitor the latest forecasts and warnings for updates. && $$ WYZ002-241845- /O.EXP.KRIW.HW.W.0003.000000T0000Z-260224T1800Z/ Absaroka Mountains- 1044 AM MST Tue Feb 24 2026 ...HIGH WIND WARNING WILL EXPIRE AT 11 AM MST THIS MORNING... The strongest winds have ended. Wind gusts up to 60 mph continue through Wednesday. A Winter Storm Warning remains in effect. $$ WYZ015-251400- /O.CON.KRIW.HW.W.0003.000000T0000Z-260225T0000Z/ /O.CON.KRIW.HW.A.0004.260225T1200Z-260226T0300Z/ Wind River Mountains East- 1044 AM MST Tue Feb 24 2026 ...HIGH WIND WARNING REMAINS IN EFFECT UNTIL 5 PM MST THIS AFTERNOON... ...HIGH WIND WATCH REMAINS IN EFFECT FROM LATE TONIGHT THROUGH WEDNESDAY EVENING... * WHAT...West winds 30 to 40 mph with gusts up to 75 mph expected over Red Canyon/South Pass. * WHERE...Wind River Mountains East. * WHEN...For the High Wind Warning, until 5 PM MST this afternoon. For the High Wind Watch, from late tonight through Wednesday evening. * IMPACTS...Travel could be difficult, especially for high profile vehicles traveling Wyoming Highway 28 around Red Canyon. * ADDITIONAL DETAILS...Wind gusts around Red Canyon near South Pass could see gusts around 75 mph. PRECAUTIONARY/PREPAREDNESS ACTIONS... Use caution if you must drive. && $$ WYZ017-251400- /O.CON.KRIW.HW.A.0004.260225T1500Z-260226T0000Z/ Wind River Basin- Including the cities of Shoshoni and Riverton 1044 AM MST Tue Feb 24 2026 ...HIGH WIND WATCH REMAINS IN EFFECT FROM WEDNESDAY MORNING THROUGH WEDNESDAY AFTERNOON... * WHAT...West winds 25 to 35 mph with gusts up to 60 mph possible. * WHERE...Wind River Basin. * WHEN...From 8 AM MST Wednesday morning through 5PM MST Wednesday evening. * IMPACTS...Travel could be difficult, especially for high profile vehicles. * ADDITIONAL DETAILS...The strongest winds are expected to occur from Riverton to Fort Washakie and northwest. PRECAUTIONARY/PREPAREDNESS ACTIONS... Use caution if you must drive. && $$ WYZ019-020-251400- /O.CON.KRIW.HW.A.0004.260225T1500Z-260226T0000Z/ Green Mountains and Rattlesnake Range-Natrona County Lower Elevations- Including the cities of Casper and Jeffrey City 1044 AM MST Tue Feb 24 2026 ...HIGH WIND WATCH REMAINS IN EFFECT FROM WEDNESDAY MORNING THROUGH WEDNESDAY AFTERNOON... * WHAT...West winds 30 to 40 mph with gusts up to 60 mph across lower elevations of Natrona County; West winds 30 to 40 mph with gusts up to 70 mph across the Green Mountains and Rattlesnake Range. * WHERE...Green Mountains and Rattlesnake Range and Natrona County Lower Elevations. * WHEN...From 8 AM MST Wednesday morning through 5 PM MST Wednesday evening. * IMPACTS...Travel could be difficult, especially for high profile vehicles. * ADDITIONAL DETAILS...The strongest wind gusts are expected to occur along Wyoming Highway 287 from Jeffery City to Muddy Gap, as well as Highway 258 on the south side of Casper. PRECAUTIONARY/PREPAREDNESS ACTIONS... Use caution if you must drive. && $$ WYZ027>030-251400- /O.CON.KRIW.HW.A.0004.260225T1500Z-260226T0000Z/ South Lincoln County-Rock Springs and Green River-Flaming Gorge- East Sweetwater County- Including the cities of Green River, Kemmerer, Wamsutter, Rock Springs, and Cokeville 1044 AM MST Tue Feb 24 2026 ...HIGH WIND WATCH REMAINS IN EFFECT FROM WEDNESDAY MORNING THROUGH WEDNESDAY AFTERNOON... * WHAT...West winds 30 to 35 mph with gusts up to 65 mph possible across Sweetwater County; West winds of 25 to 30 mph with gusts up to 60 mph possible across southern Lincoln County. * WHERE...East Sweetwater County, Flaming Gorge, Rock Springs and Green River, and South Lincoln County. * WHEN...From 8 AM MST Wednesday morning through 5 PM MST Wednesday evening. * IMPACTS...Travel could be difficult, especially for high profile vehicles. * ADDITIONAL DETAILS...The strongest winds are expected to occur in an area roughly from Green River and Rock Springs to Point of Rocks, including I-80. PRECAUTIONARY/PREPAREDNESS ACTIONS... Use caution if you must drive. && $$ For more information from the National Weather Service, visit https://weather.gov/riw/ . Wittmann
233 WWUS75 KRIW 241851 NPWRIW URGENT - WEATHER MESSAGE National Weather Service Riverton WY 1151 AM MST Tue Feb 24 2026 WYZ015-251400- /O.UPG.KRIW.HW.A.0004.260225T1200Z-260226T0300Z/ /O.NEW.KRIW.HW.W.0004.260225T1200Z-260226T0300Z/ /O.CON.KRIW.HW.W.0003.000000T0000Z-260225T0000Z/ Wind River Mountains East- 1151 AM MST Tue Feb 24 2026 ...HIGH WIND WARNING REMAINS IN EFFECT UNTIL 5 PM MST THIS AFTERNOON... ...HIGH WIND WARNING IN EFFECT FROM 5 AM TO 8 PM MST WEDNESDAY... * WHAT...West winds 30 to 40 mph with gusts up to 75 mph. * WHERE...Wind River Mountains East. * WHEN...For the first High Wind Warning, until 5 PM MST this afternoon. For the second High Wind Warning, from 5 AM to 8 PM MST Wednesday. * IMPACTS...Travel could be difficult, especially for high profile vehicles traveling Wyoming Highway 28 around Red Canyon. PRECAUTIONARY/PREPAREDNESS ACTIONS... Use caution if you must drive. && $$ WYZ016-251400- /O.UPG.KRIW.HW.A.0004.260225T1200Z-260226T0300Z/ /O.NEW.KRIW.HW.W.0004.260225T1200Z-260226T0300Z/ Upper Wind River Basin- Including the cities of Dubois 1151 AM MST Tue Feb 24 2026 ...HIGH WIND WARNING IN EFFECT FROM 5 AM TO 8 PM MST WEDNESDAY... * WHAT...West-northwest winds 20 to 30 mph with gusts up to 65 mph. * WHERE...Upper Wind River Basin. * WHEN...From 5 AM to 8 PM MST Wednesday. * IMPACTS...Travel could be difficult. PRECAUTIONARY/PREPAREDNESS ACTIONS... Use caution if you must drive. && $$ WYZ017-251400- /O.UPG.KRIW.HW.A.0004.260225T1500Z-260226T0000Z/ /O.NEW.KRIW.HW.W.0004.260225T1500Z-260226T0000Z/ Wind River Basin- Including the cities of Shoshoni and Riverton 1151 AM MST Tue Feb 24 2026 ...HIGH WIND WARNING IN EFFECT FROM 8 AM TO 5 PM MST WEDNESDAY... * WHAT...West winds 25 to 35 mph with gusts up to 60 mph possible. * WHERE...Wind River Basin. * WHEN...From 8 AM to 5 PM MST Wednesday. * IMPACTS...Travel could be difficult, especially for high profile vehicles. * ADDITIONAL DETAILS...The strongest winds are expected to occur from Riverton to Fort Washakie and northwest. PRECAUTIONARY/PREPAREDNESS ACTIONS... Use caution if you must drive. && $$ WYZ019-020-251400- /O.UPG.KRIW.HW.A.0004.260225T1500Z-260226T0000Z/ /O.NEW.KRIW.HW.W.0004.260225T1500Z-260226T0000Z/ Green Mountains and Rattlesnake Range-Natrona County Lower Elevations- Including the cities of Casper and Jeffrey City 1151 AM MST Tue Feb 24 2026 ...HIGH WIND WARNING IN EFFECT FROM 8 AM TO 5 PM MST WEDNESDAY... * WHAT...West winds 30 to 40 mph with gusts up to 60 mph across lower elevations of Natrona County; West winds 30 to 40 mph with gusts up to 70 mph across the Green Mountains and Rattlesnake Range. * WHERE...Green Mountains and Rattlesnake Range and Natrona County Lower Elevations. * WHEN...From 8 AM to 5 PM MST Wednesday. * IMPACTS...Travel could be difficult, especially for high profile vehicles. * ADDITIONAL DETAILS...The strongest wind gusts are expected to occur along Wyoming Highway 287 from Jeffery City to Muddy Gap, as well as Highway 258 on the south side of Casper. PRECAUTIONARY/PREPAREDNESS ACTIONS... Use caution if you must drive. && $$ WYZ027>030-251400- /O.UPG.KRIW.HW.A.0004.260225T1500Z-260226T0000Z/ /O.NEW.KRIW.HW.W.0004.260225T1500Z-260226T0000Z/ South Lincoln County-Rock Springs and Green River-Flaming Gorge- East Sweetwater County- Including the cities of Green River, Kemmerer, Wamsutter, Rock Springs, and Cokeville 1151 AM MST Tue Feb 24 2026 ...HIGH WIND WARNING IN EFFECT FROM 8 AM TO 5 PM MST WEDNESDAY... * WHAT...West winds 30 to 35 mph with gusts up to 65 mph possible across Sweetwater County; West winds of 25 to 30 mph with gusts up to 60 mph possible across southern Lincoln County. * WHERE...East Sweetwater County, Flaming Gorge, Rock Springs and Green River, and South Lincoln County. * WHEN...From 8 AM to 5 PM MST Wednesday. * IMPACTS...Travel could be difficult, especially for high profile vehicles. * ADDITIONAL DETAILS...The strongest winds are expected to occur in an area roughly from Green River and Rock Springs to Point of Rocks, including I-80. PRECAUTIONARY/PREPAREDNESS ACTIONS... Use caution if you must drive. && $$ For more information from the National Weather Service, visit https://weather.gov/riw/ . Wittmann
What forecasters said that day
The local office's own words before this high wind warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.
NWS Riverton, WY wrote its last area forecast discussion before this high wind warning went out at Feb 22, 9:52 PM MST, 2 hours 53 minutes earlier. Its key messages:
- High temperatures climb to 10 to 15 degrees above normal Monday as warmer air arrives. Similar daytime highs occur through the work week.
- Mountain snow is forecast across western Wyoming Tuesday and Wednesday, with the heaviest snowfall rates between 5 AM Tuesday and 5 AM Wednesday. Mountains within the Winter Storm Watch have a 70 percent chance of one foot or more of snow.
- Western Wyoming valleys will receive precipitation Tuesday, but with surface air temperatures near freezing, there is low confidence in snow levels. Places like Jackson Hole and Star Valley could (40 percent chance) receive notable snowfall with this event if temperatures remain slightly cooler than currently forecast.
- There will be a prolonged period of very windy conditions along and east of the Continental Divide beginning Monday night and lasting through Friday. Wednesday appears to be the windiest day of the week with widespread 35 to 45 mph wind gusts, and lower elevations of central Wyoming topping 50 mph.
Area forecast discussion, Feb 22, 9:52 PM MST, 2 hours 53 minutes before
Area Forecast Discussion National Weather Service Riverton WY 952 PM MST Sun Feb 22 2026 .KEY MESSAGES... - High temperatures climb to 10 to 15 degrees above normal Monday as warmer air arrives. Similar daytime highs occur through the work week. - Mountain snow is forecast across western Wyoming Tuesday and Wednesday, with the heaviest snowfall rates between 5 AM Tuesday and 5 AM Wednesday. Mountains within the Winter Storm Watch have a 70 percent chance of one foot or more of snow. - Western Wyoming valleys will receive precipitation Tuesday, but with surface air temperatures near freezing, there is low confidence in snow levels. Places like Jackson Hole and Star Valley could (40 percent chance) receive notable snowfall with this event if temperatures remain slightly cooler than currently forecast. - There will be a prolonged period of very windy conditions along and east of the Continental Divide beginning Monday night and lasting through Friday. Wednesday appears to be the windiest day of the week with widespread 35 to 45 mph wind gusts, and lower elevations of central Wyoming topping 50 mph. && .UPDATE... Issued at 102 PM MST Sun Feb 22 2026 The incoming warmer, moist, strong, zonal flow beginning late Monday night and continuing into Wednesday morning has led to the issuance of a mix of winter storm watches and high wind watches across the western mountains. The warmer air leads to high temperatures 10 to 15 degrees above normal Monday, a trend that persists through the week for all but the far west valleys and high deserts. The leading edge of an atmospheric river (IVT 300-400 kg/ms) reaches the western mountains just prior to 5 AM Tuesday. Favorable isentropic lift combined with orographics leads to a prolonged period of snowfall from southern Yellowstone to the north half of the Salt River/Wyoming Ranges. The heaviest snow falls between 8 AM Tuesday and 5 AM Wednesday and favors the Teton Range, Pitchstone Plateau, and the area around and north of Togwotee Pass. There is a 70 to nearly 100 percent chance of one foot or more of snow in these areas, which necessitated the issuance of winter storm watches. There is close to a 50 percent chance of totals exceeding 18 inches in the Teton Range. This airmass is moist, so this looks possible. The challenge remains regarding valley rain/snow as warm air advection could lead to warmer daytime highs, in turn hindering valley accumulations. Wind along and east of the Continental Divide will be the other aspect to this incoming event. The initial surge of stronger wind arrives late Monday night and Tuesday across the Absaroka Range and portions of the Cody Foothills. This surge shifts south to the Wind River Range, including Red Canyon, and the Upper Wind River Valley around Dubois during the day. A high wind watch has been posted for these areas, but confidence is marginal. A more westerly component to the wind may hinder wind gust potential in the Lander Foothills, so have kept that zone out of the watch for now. The more widespread wind event arrives Wednesday as a 130kt+ jet and elongated vorticity axis shift south across Wyoming. The chance of widespread 50+ mph wind gusts Wednesday is 30 to 50 percent east of a Cody to Dubois to Rock Springs line. We decided to message this strongly, and wait for a later shift to make a determination on upgrading the first set of high wind watches before creating a second set of watches. Nonetheless, Wednesday will be very windy across a substantial area. && .DISCUSSION... Issued at 231 AM MST Sun Feb 22 2026 Today will likely be the calmest day of the week. Temperatures will be 5 to 10 degrees warmer today, rebounding back to near normal levels. Conditions will remain dry, with high clouds this morning giving way to clear skies by the afternoon. Winds will be light for most locations. Exceptions will be the east slopes of the Absaroka, Wind River and Bighorn Mountains and the Wind Corridor east of the Divide (Muddy Gap/Jeffrey City to Casper). Gusts of 25 to 30 mph will occur in these areas. Similar conditions return for Monday, with temperatures 10 to 20 degrees warmer across the area leading to highs in the 45F to 55F range. Gusty winds will impact the previously mentioned areas again, with higher gusts of 35 to 55 mph occurring through the afternoon. Wind gusts of 25 to 35 mph will be more widespread as well, from southern Lincoln County to southern Johnson County. These increased winds will be due to the pressure gradient tightening associated with an approaching storm system that will begin to impact western portions later Monday night. An atmospheric river (AR) will develop over the PACNW tonight into Monday, as a broad ridge develops over much of the Intermountain West Monday night into Tuesday. This pattern will lead to the core of the PFJ being over the PACNW and Canadian border. At the same time, Pacific moisture from this AR will begin to increase over the region, with the first rounds of snow developing over the western mountains late Monday night. Precipitable water (PWAT) values will rapidly increase between 06Z and 12Z Tuesday, with values of 0.35" to 0.4" becoming widespread across the Cowboy State. This is well above the 90th percentile and toward the climatological maximum. This, coupled with strong isentropic upslope, will lead to heavy snow. There remains a high probability (greater than 70 percent) of widespread snowfall of at least 8 inches over the northwestern mountains (including Yellowstone), while the Tetons and southern Absarokas have a 40-60 percent chance of totals over 15 inches. The chances for snow in the Jackson and Star Valleys are highly variable, as model solutions are waffling on snow levels (which are currently between 6000 and 7000ft). This is likely due to the Pacific nature of the airmass. However, there is up to a 50% chance for 2 inches or more in the Jackson Valley (with higher chances on the north end of the valley between Moose and Moran) and a 10 to 20% chance in Star Valley through the day Tuesday and into Tuesday night. Gusty winds will also continue over the mountains and increase late Monday night as well, as the gradient continues to tighten as a system begins to drop southward from Canada. 700mb winds will increase to 50 to 70kt between 09Z and 12Z Tuesday, with a strong downsloping signature off the east slopes of the Absaroka and Wind River Mountains occurring by 12Z. This could lead to high winds (wind gusts 60+ mph) at places like Cody, Dubois and Lander. Needless to say, gusty winds will be more widespread with gusts of 35 to 50 mph occurring from southern Lincoln County to Natrona County Tuesday afternoon. Locally higher gusts around 60 mph will occur over South Pass. Caution is advised for travelers here, as well as over Togwotee/Teton Pass, with gusts of 25 to 35 mph occurring with the snow. The aforementioned Canadian system will rapidly drop southward across the forecast area through the day Wednesday. Strong to high winds will be widespread across the CWA as a result. The main reason will be due to a 130kt jet max associated with the PFJ that will be in place ahead of the system. This will translate to 700mb winds of 45 to 60kt, which will mix down to the surface. Most areas can expect wind gusts of 40 to 60 mph through the day on Wednesday. These winds will decrease for most areas after sunset Wednesday evening, but gusts of 25 to 40 mph will continue for wind prone locations. Moderate to heavy snow will also continue over the western mountains Wednesday, ending by the evening as well, as the main system exits to the south. Strong gusty winds will continue across the area Thursday in the wake of the storm, as northwest winds persist. Another Canadian storm system could impact the area with cold temperatures and snow by Saturday. Most of the impacts will likely stay east of the Divide if current trends continue. && .AVIATION /06Z TAFS THROUGH 06Z TUESDAY/... Issued at 952 PM MST Sun Feb 22 2026 VFR conditions prevail over the next 24 hours, but winds will be increasing and becoming gusty at many locations ahead of Monday night's (and Tuesday's) incoming weather system. Most locations will have opportunity for afternoon gusts in the 20 to 30 kt range. KCOD is worth mentioning in particular, as strong winds in the lee of the Absaroka Mountains could cause notable gusts there after sunset on Monday. Have gone with the more likely 30 kt sustained gusting to 45 kt in the TAF at KCOD Monday evening into the overnight, but that could be higher at times. With 60 to 70 kt westerly winds from around 3000 to 5000 AGL during the much of the night there, occasional gusts in the 50 to 60 kt range can't be ruled out (40% chance). Precipitation looks to hold off in western valleys (including KJAC) until the early AM hours Tuesday. && .RIW WATCHES/WARNINGS/ADVISORIES... Winter Storm Watch from late Monday night through Wednesday morning for WYZ001-002-012-024. High Wind Watch from Monday evening through Tuesday afternoon for WYZ002-003-015-016. && UPDATE...CNJ DISCUSSION...LaVoie AVIATION...VandenBoogart
Hazardous weather outlook, Feb 22, 11:58 AM MST, 12 hours 47 minutes before
Hazardous Weather Outlook National Weather Service Riverton WY 1158 AM MST Sun Feb 22 2026 WYZ001>020-022>030-231400- Yellowstone National Park-Absaroka Mountains-Cody Foothills- North Bighorn Basin-Southwest Bighorn Basin-Southeast Bighorn Basin- Owl Creek and Bridger Mountains-Bighorn Mountains West- Bighorn Mountains Southeast-Northeast Johnson County- Southeast Johnson County-Teton and Gros Ventre Mountains- Jackson Hole-Wind River Mountains West-Wind River Mountains East- Upper Wind River Basin-Wind River Basin-Lander Foothills- Green Mountains and Rattlesnake Range- Natrona County Lower Elevations-Casper Mountain-Star Valley- Salt River and Wyoming Ranges-Upper Green River Basin Foothills- Upper Green River Basin-South Lincoln County- Rock Springs and Green River-Flaming Gorge-East Sweetwater County- 1158 AM MST Sun Feb 22 2026 ...High Wind Watches in Effect from Late Monday Evening Through Tuesday Afternoon for the Mountains and Nearby Foothills of the Absaroka and Wind River Ranges... ...Winter Storm Watches in Effect from Late Monday Night through Wednesday Morning for the Western Mountains... This Hazardous Weather Outlook is for Western and Central Wyoming. .DAY ONE...This Afternoon and Tonight. No hazardous weather is expected at this time. .DAYS TWO THROUGH SEVEN...Monday through Saturday. Monday Night...Very windy conditions in the Absaroka and Wind River Mountains and potentially portions of the Cody Foothills and the Upper Wind River Basin. Tuesday and Wednesday...Heavy snow in the western mountains, especially between 8 AM Tuesday and 5 AM Wednesday. East of the Continental Divide, very windy conditions are expected across portions of central Wyoming and the east slopes and foothills of the mountains. Widespread 35 to 45 mph wind gusts Wednesday with possible wind gusts 50 to 60 mph in central Wyoming. .SPOTTER INFORMATION STATEMENT... Weather spotters are encouraged to report significant weather conditions according to Standard Operating Procedures.
The office that day
Everything else NWS Riverton, WY issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Feb 23, 1:12 AM MST | Winter Storm Warning | RIW | Fremont, Hot Springs, Lincoln, Park, Sublette, Teton | 64 hr |
| Feb 23, 1:12 AM MST | Winter Weather Advisory | RIW | Big Horn, Fremont, Johnson, Lincoln, Natrona, Teton and 1 more | 59 hr |
| Feb 23, 2:56 AM MST | High Wind Watch | RIW | Fremont, Lincoln, Natrona, Sublette, Sweetwater | 33 hr |
Nearby
High Wind Warnings in Wyoming, 2026Every high wind warning in 2026
Sources
The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.