Alert archive / Wyoming / High Wind Warnings in 2026
High Wind Warning 8, NWS Riverton, WY
NWS Riverton, WY issued this high wind warning at Mar 11, 2026, 3:01 AM MDT for 9 counties in Wyoming. It took effect at Mar 11, 2026, 6:00 PM MDT. It was in force for 30 hr. 60 reports came from inside the area while it was in force.
The area
The counties it named, with what was reported inside it.
The facts
- Issued
- Mar 11, 2026, 3:01 AM MDT (09:01 UTC)
- In effect from
- Mar 11, 2026, 6:00 PM MDT
- Expired
- Mar 13, 2026, 12:00 AM MDT
- In force
- 30 hr
- Issued by
- NWS Riverton, WY
Counties Big Horn County, WY, Fremont County, WY, Hot Springs County, WY, Johnson County, WY, Natrona County, WY, Park County, WY, Sublette County, WY, Sweetwater County, WY, Washakie County, WY
The radar
The Riverton/Lander radar (KRIW), 47 km from the middle of the area, began a volume at 09:01 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 12, 4:30 AM MDT | NON-TSTM WND GST 78 | 1 Wnw Clark, WY | Mesonet station DW7095 Clark (CWOP). |
| Mar 12, 4:40 AM MDT | NON-TSTM WND GST 61 | 11 Wnw Cody, WY | Mesonet station RATW4 Rattlesnake Mtn. |
| Mar 12, 6:00 AM MDT | NON-TSTM WND GST 69 | 7 Sw Lander, WY | Mesonet station PC286 Sinks Canyon (PC). |
| Mar 12, 6:50 AM MDT | NON-TSTM WND GST 70 | 3 Wnw Lander, WY | Mesonet station PC453 Baldwin Creek (PC). |
| Mar 12, 7:30 AM MDT | NON-TSTM WND GST 76 | 13 S Thermopolis, WY | Mesonet station PC631 Stagner (PC). |
| Mar 12, 7:46 AM MDT | NON-TSTM WND GST 70 | 7 Ssw Barnum, WY | Mesonet station PCRW4 Poker Creek. |
| Mar 12, 8:01 AM MDT | NON-TSTM WND GST 82 | 12 W Fort Washakie, WY | Mesonet station WRVW4 Wind River. |
| Mar 12, 8:15 AM MDT | NON-TSTM WND GST 79 | 13 S Thermopolis, WY | AWOS station KTBX Boysen Peak (AWOS). |
| Mar 12, 8:20 AM MDT | NON-TSTM WND GST 59 | 3 Wsw Buffalo, WY | Mesonet station PC461 Buffalo West (PC). |
| Mar 12, 8:30 AM MDT | NON-TSTM WND GST 65 | 2 Ssw Buffalo, WY | Mesonet station PC460 Buffalo South (PC). |
| Mar 12, 8:46 AM MDT | NON-TSTM WND GST 76 | 11 N Meeteetse, WY | Mesonet station TT610 Dry Creek. |
| Mar 12, 9:00 AM MDT | NON-TSTM WND GST 59 | 3 Nw Mayoworth, WY | Mesonet station EW3317 Kaycee 2 (CWOP). |
| Mar 12, 9:01 AM MDT | NON-TSTM WND GST 72 | 3 Nnw Buffalo, WY | ASOS station KBYG Buffalo Airport (ASOS). |
| Mar 12, 9:15 AM MDT | NON-TSTM WND GST 62 | 10 Wnw Thermopolis, WY | AWOS station KHSG Hot Springs Airport (AWOS). |
| Mar 12, 9:47 AM MDT | NON-TSTM WND GST 88 | 14 Wsw Buffalo, WY | Mesonet station SPKW4 School House. |
| Mar 12, 10:15 AM MDT | NON-TSTM WND GST 62 | 22 Wnw Dubois, WY | Mesonet station LAVBT Lava Mountain (BTAC). |
| Mar 12, 10:20 AM MDT | NON-TSTM WND GST 89 | 3 Sse Casper, WY | Mesonet station PC377 Scenic Dr (PC). |
| Mar 12, 10:36 AM MDT | NON-TSTM WND GST 79 | 2 Sse Casper, WY | Mesonet station WY47 WY258 Outer Drive (DOT). |
| Mar 12, 10:37 AM MDT | NON-TSTM WND GST 95 | 8 E Sunlight Basin, WY | Mesonet station KCHJ WY296 Chief J Pass (DOT). |
| Mar 12, 10:40 AM MDT | NON-TSTM WND GST 65 | 7 S Casper, WY | Mesonet station PC391 Stag Run (PC). |
| Mar 12, 10:40 AM MDT | NON-TSTM WND GST 66 | 5 S Mills, WY | Mesonet station PC387 Coates Rd (PC). |
| Mar 12, 10:40 AM MDT | NON-TSTM WND GST 81 | 13 Se Evansville, WY | Mesonet station PC459 Muddy Creek (PC). |
| Mar 12, 10:40 AM MDT | NON-TSTM WND GST 90 | 4 S Casper, WY | Mesonet station PC393 Casper Mtn Rd (PC). |
| Mar 12, 10:50 AM MDT | NON-TSTM WND GST 82 | 6 Se Casper, WY | Mesonet station PC392 Claude Creek (PC). |
| Mar 12, 11:00 AM MDT | NON-TSTM WND GST 60 | Crowheart, WY | Mesonet station DW3794 Crowheart (CWOP). |
| Mar 12, 11:06 AM MDT | NON-TSTM WND GST 73 | 6 Wnw Midwest, WY | Mesonet station WY62 I-25 Smokey Gap (DOT). |
| Mar 12, 11:10 AM MDT | NON-TSTM WND GST 61 | 5 E Ervay, WY | Mesonet station RSNW4 Fales Rock. |
| Mar 12, 11:10 AM MDT | NON-TSTM WND GST 72 | 11 S Ralston, WY | Mesonet station PC628 Mccullough Peaks (PC). |
| Mar 12, 11:20 AM MDT | NON-TSTM WND GST 66 | 26 Sse Point Of Rocks, WY | Mesonet station PC399 Pine Butte (PC). |
| Mar 12, 11:30 AM MDT | NON-TSTM WND GST 65 | 4 Nw Midwest, WY | Mesonet station PC577 Midwest (PC). |
| Mar 12, 11:36 AM MDT | NON-TSTM WND GST 71 | 8 N Meeteetse, WY | Mesonet station KMTR WY120 Meeteetse Rim (DOT). |
| Mar 12, 11:54 AM MDT | NON-TSTM WND GST 78 | 6 Nw Mills, WY | ASOS station KCPR Casper Airport (ASOS). |
| Mar 12, 12:00 PM MDT | NON-TSTM WND GST 59 | 8 Wnw Bar Nunn, WY | Mesonet station FW7361 Casper (CWOP). |
| Mar 12, 12:00 PM MDT | NON-TSTM WND GST 67 | 1 Wnw Riverton, WY | Mesonet station SNCLR Riverton 2 (AWS). |
| Mar 12, 12:08 PM MDT | NON-TSTM WND GST 63 | 2 E Cody, WY | AWOS station KCOD Cody Airport (AWOS). |
| Mar 12, 12:10 PM MDT | NON-TSTM WND GST 93 | 6 Ssw Meeteetse, WY | Mesonet station PC463 Wood River East (PC). |
| Mar 12, 12:12 PM MDT | NON-TSTM WND GST 63 | 8 Nnw Sunlight Basin, WY | Mesonet station CDAW4 Crandall. |
| Mar 12, 12:17 PM MDT | NON-TSTM WND GST 59 | 2 Nw Greybull, WY | ASOS station KGEY Greybull Airport (ASOS). |
| Mar 12, 12:20 PM MDT | NON-TSTM WND GST 71 | 2 E Point Of Rocks, WY | Mesonet station PC245 Point of Rocks (PC). |
| Mar 12, 12:42 PM MDT | NON-TSTM WND GST 89 | 14 N Bar Nunn, WY | Mesonet station KTMH I-25 Twenty Mile Hill (DOT). |
| Mar 12, 12:50 PM MDT | NON-TSTM WND GST 60 | 9 Sse Wapiti, WY | Mesonet station PC395 Shoshone Southfork (PC). |
| Mar 12, 12:51 PM MDT | NON-TSTM WND GST 64 | 6 Sse Point Of Rocks, WY | Mesonet station UP327 Point of Rocks 5 SSE (UPR). |
| Mar 12, 12:56 PM MDT | NON-TSTM WND GST 64 | 1 Sw Evansville, WY | Mesonet station GW4455 Evansville (CWOP). |
| Mar 12, 1:00 PM MDT | NON-TSTM WND GST 92 | 13 Wnw Midwest, WY | Mesonet station PC549 Tisdale Mtn (PC). |
| Mar 12, 1:05 PM MDT | NON-TSTM WND GST 59 | 1 Sw Thermopolis, WY | Mesonet station CW8386 Thermopolis (CWOP). |
| Mar 12, 1:08 PM MDT | NON-TSTM WND GST 85 | 14 Se Kaycee, WY | Mesonet station WY63 I-25 Tisdale Divide (DOT). |
| Mar 12, 1:30 PM MDT | NON-TSTM WND GST 87 | 11 Se Wapiti, WY | Mesonet station PC462 Irma Lake (PC). |
| Mar 12, 1:36 PM MDT | NON-TSTM WND GST 74 | Natrona, WY | Mesonet station WY45 US20 Natrona (DOT). |
| Mar 12, 1:40 PM MDT | NON-TSTM WND GST 63 | 15 Ssw Big Trails, WY | Mesonet station SPLW4 Split Rock Creek. |
| Mar 12, 1:40 PM MDT | NON-TSTM WND GST 68 | 12 W Daniel, WY | Mesonet station PC452 Cottonwood Merna (PC). |
| Mar 12, 1:40 PM MDT | NON-TSTM WND GST 75 | 17 Ssw Midwest, WY | Mesonet station PC576 Horse Ranch Creek (PC). |
| Mar 12, 1:42 PM MDT | NON-TSTM WND GST 79 | 10 Wsw Grass Creek, WY | Mesonet station GCRW4 Grass Creek. |
| Mar 12, 1:55 PM MDT | NON-TSTM WND GST 64 | 2 Wnw Dubois, WY | AWOS station KDUB Dubois Airport (AWOS). |
| Mar 12, 2:02 PM MDT | NON-TSTM WND GST 61 | 13 Nnw Buffalo, WY | Mesonet station DHS I-90 Piney Creek (DOT). |
| Mar 12, 2:06 PM MDT | NON-TSTM WND GST 75 | 6 W Alcova, WY | Mesonet station KPAT WY220 Pathfinder (DOT). |
| Mar 12, 2:10 PM MDT | NON-TSTM WND GST 91 | 3 Nw Atlantic City, WY | Mesonet station PC285 Skyline (PC). |
| Mar 12, 2:16 PM MDT | NON-TSTM WND GST 58 | 7 Ene Kinnear, WY | Mesonet station TT813 Qd-1. |
| Mar 12, 2:20 PM MDT | NON-TSTM WND GST 71 | 8 Nw La Barge, WY | Mesonet station PC398 Hogsback (PC). |
| Mar 12, 2:39 PM MDT | NON-TSTM WND GST 79 | 5 Nw Riverton, WY | ASOS station KRIW Riverton Airport (ASOS). |
| Mar 12, 2:46 PM MDT | NON-TSTM WND GST 80 | 4 Nnw Hudson, WY | Mesonet station SHPW4 Sharpnose. |
Local storm reports filed while the alert was in force, from inside its polygon or its counties.
The nearest sounding before it
Riverton, WY (KRIW), launched 00:00Z, 9.0 hours before the alert went out and 44 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
- 4 J/kg
- Mixed-layer CIN
- -21 J/kg
- Mixed-layer LCL
- 1447 m above ground
- 0-6 km bulk shear
- 100 kt
- 0-1 km storm-relative helicity
- -16 m²/s²
- 0-3 km storm-relative helicity
- 43 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
611 WWUS75 KRIW 110901 NPWRIW URGENT - WEATHER MESSAGE National Weather Service Riverton WY 301 AM MDT Wed Mar 11 2026 WYZ002-015-120115- /O.UPG.KRIW.HW.A.0008.260312T0600Z-260313T0600Z/ /O.NEW.KRIW.HW.W.0008.260312T0600Z-260313T0600Z/ Absaroka Mountains-Wind River Mountains East- 301 AM MDT Wed Mar 11 2026 ...HIGH WIND WARNING IN EFFECT FROM MIDNIGHT TONIGHT TO MIDNIGHT MDT THURSDAY NIGHT... * WHAT...West winds 35 to 55 mph with gusts up to 85 mph expected. * WHERE...Wind River Mountains East and Absaroka Mountains. * WHEN...From midnight Wednesday to midnight MDT Thursday Night. * IMPACTS...Travel could be difficult, especially for high profile vehicles traveling Highway 28 (South Pass) or Highway 296 (Chief Joseph Pass). PRECAUTIONARY/PREPAREDNESS ACTIONS... Use caution if you must drive. Secure loose objects. && $$ WYZ003-120115- /O.UPG.KRIW.HW.A.0008.260312T0900Z-260313T0300Z/ /O.NEW.KRIW.HW.W.0008.260312T0900Z-260313T0300Z/ Cody Foothills- Including the cities of Meeteetse, Cody, and Clark 301 AM MDT Wed Mar 11 2026 ...HIGH WIND WARNING IN EFFECT FROM 3 AM TO 9 PM MDT THURSDAY... * WHAT...West winds 30 to 50 mph with gusts up to 70 mph expected. * WHERE...Cody Foothills. * WHEN...From 3 AM to 9 PM MDT Thursday. * IMPACTS...Travel could be difficult, especially for high profile vehicles traveling Highway 28. Isolated gusts up to 80 mph possible near Clark. PRECAUTIONARY/PREPAREDNESS ACTIONS... Use caution if you must drive. Secure loose objects. && $$ WYZ019-020-120115- /O.UPG.KRIW.HW.A.0008.260312T0900Z-260313T0600Z/ /O.NEW.KRIW.HW.W.0008.260312T0900Z-260313T0600Z/ Green Mountains and Rattlesnake Range-Natrona County Lower Elevations- Including the cities of Jeffrey City and Casper 301 AM MDT Wed Mar 11 2026 ...HIGH WIND WARNING IN EFFECT FROM 3 AM THURSDAY TO MIDNIGHT MDT THURSDAY NIGHT... * WHAT...West winds 35 to 45 mph with gusts up to 70 mph expected. * WHERE...Green Mountains and Rattlesnake Range and Natrona County Lower Elevations. * WHEN...From 3 AM Thursday to midnight MDT Thursday Night. * IMPACTS...Travel could be difficult, especially for high profile vehicles. PRECAUTIONARY/PREPAREDNESS ACTIONS... Use caution if you must drive. Secure loose objects. && $$ WYZ005-120115- /O.UPG.KRIW.HW.A.0008.260312T1500Z-260313T0300Z/ /O.NEW.KRIW.HW.W.0008.260312T1500Z-260313T0300Z/ Southwest Bighorn Basin- Including the cities of Thermopolis 301 AM MDT Wed Mar 11 2026 ...HIGH WIND WARNING IN EFFECT FROM 9 AM TO 9 PM MDT THURSDAY... * WHAT...West winds 30 to 40 mph with gusts up to 65 mph expected. * WHERE...Southwest Bighorn Basin. * WHEN...From 9 AM to 9 PM MDT Thursday. * IMPACTS...Travel could be difficult, especially for high profile vehicles. PRECAUTIONARY/PREPAREDNESS ACTIONS... Use caution if you must drive. Secure loose objects. && $$ WYZ007-120115- /O.UPG.KRIW.HW.A.0008.260312T1500Z-260313T0300Z/ /O.NEW.KRIW.HW.W.0008.260312T1500Z-260313T0300Z/ Owl Creek and Bridger Mountains- 301 AM MDT Wed Mar 11 2026 ...HIGH WIND WARNING IN EFFECT FROM 9 AM TO 9 PM MDT THURSDAY... * WHAT...West winds 35 to 50 mph with gusts up to 80 mph expected. * WHERE...Owl Creek and Bridger Mountains. * WHEN...From 9 AM to 9 PM MDT Thursday. * IMPACTS...Travel could be difficult along Highway 20, through Wind River Canyon. * ADDITIONAL DETAILS...Strongest winds are expected over the western portion of the range, the Owl Creeks. PRECAUTIONARY/PREPAREDNESS ACTIONS... Use caution if you must drive. Secure loose objects. && $$ WYZ008-009-120115- /O.UPG.KRIW.HW.A.0008.260312T1500Z-260313T0300Z/ /O.NEW.KRIW.HW.W.0008.260312T1500Z-260313T0300Z/ Bighorn Mountains West-Bighorn Mountains Southeast- 301 AM MDT Wed Mar 11 2026 ...HIGH WIND WARNING IN EFFECT FROM 9 AM TO 9 PM MDT THURSDAY... * WHAT...West winds 35 to 45 mph with gusts up to 75 mph expected. * WHERE...Bighorn Mountains Southeast and Bighorn Mountains West. * WHEN...From 9 AM to 9 PM MDT Thursday. * IMPACTS...Travel could be difficult through mountain passes, like Granite and Powder River Passes. * ADDITIONAL DETAILS...The strongest winds occur on the eastern side of the mountains. PRECAUTIONARY/PREPAREDNESS ACTIONS... Use caution if you must drive. Secure loose objects. && $$ WYZ016>018-030-120115- /O.UPG.KRIW.HW.A.0008.260312T1500Z-260313T0300Z/ /O.NEW.KRIW.HW.W.0008.260312T1500Z-260313T0300Z/ Upper Wind River Basin-Wind River Basin-Lander Foothills-East Sweetwater County- Including the cities of Lander, Wamsutter, Shoshoni, Dubois, and Riverton 301 AM MDT Wed Mar 11 2026 ...HIGH WIND WARNING IN EFFECT FROM 9 AM TO 9 PM MDT THURSDAY... * WHAT...West winds 35 to 45 mph with gusts up to 70 mph expected. * WHERE...Lander Foothills, Upper Wind River Basin, Wind River Basin, and East Sweetwater County. * WHEN...From 9 AM to 9 PM MDT Thursday. * IMPACTS...Travel could be difficult, especially for high profile vehicles. PRECAUTIONARY/PREPAREDNESS ACTIONS... Use caution if you must drive. Secure loose objects. && $$ WYZ022-120115- /O.NEW.KRIW.HW.W.0008.260312T0900Z-260313T0600Z/ Casper Mountain- 301 AM MDT Wed Mar 11 2026 ...HIGH WIND WARNING IN EFFECT FROM 3 AM THURSDAY TO MIDNIGHT MDT THURSDAY NIGHT... * WHAT...Southwest winds 35 to 50 mph with gusts up to 75 mph expected. * WHERE...Casper Mountain. * WHEN...From 3 AM Thursday to midnight MDT Thursday Night. * IMPACTS...Travel could be difficult. PRECAUTIONARY/PREPAREDNESS ACTIONS... Use caution if you must drive. Secure loose objects. && $$ WYZ004-006-120115- /O.CON.KRIW.HW.A.0008.260312T1500Z-260313T0300Z/ North Bighorn Basin-Southeast Bighorn Basin- Including the cities of Powell, Basin, Ten Sleep, Worland, Shell, Lovell, and Greybull 301 AM MDT Wed Mar 11 2026 ...HIGH WIND WATCH REMAINS IN EFFECT FROM THURSDAY MORNING THROUGH THURSDAY EVENING... * WHAT...West winds 30 to 40 mph with gusts up to 60 mph possible. * WHERE...Southeast Bighorn Basin and North Bighorn Basin. * WHEN...From Thursday morning through Thursday evening. * IMPACTS...Travel could be difficult, especially for high profile vehicles. PRECAUTIONARY/PREPAREDNESS ACTIONS... Monitor the latest forecasts and warnings for updates. && $$ WYZ010-011-120115- /O.CON.KRIW.HW.A.0008.260312T1500Z-260313T0300Z/ Northeast Johnson County-Southeast Johnson County- Including the cities of Buffalo and Kaycee 301 AM MDT Wed Mar 11 2026 ...HIGH WIND WATCH REMAINS IN EFFECT FROM THURSDAY MORNING THROUGH THURSDAY EVENING... * WHAT...West winds 30 to 40 mph with gusts up to 70 mph possible. * WHERE...Northeast Johnson County and Southeast Johnson County. * WHEN...From Thursday morning through Thursday evening. * IMPACTS...Travel could be difficult, especially for high profile vehicles. PRECAUTIONARY/PREPAREDNESS ACTIONS... Monitor the latest forecasts and warnings for updates. && $$ For more information from the National Weather Service, visit https://weather.gov/riw/ . Dziewaltowski
5 follow-up statements
658 WWUS75 KRIW 111639 NPWRIW URGENT - WEATHER MESSAGE National Weather Service Riverton WY 1039 AM MDT Wed Mar 11 2026 WYZ004-006-121300- /O.UPG.KRIW.HW.A.0008.260312T1500Z-260313T0300Z/ /O.EXA.KRIW.HW.W.0008.260312T1500Z-260313T0300Z/ North Bighorn Basin-Southeast Bighorn Basin- Including the cities of Ten Sleep, Worland, Shell, Basin, Powell, Lovell, and Greybull 1039 AM MDT Wed Mar 11 2026 ...HIGH WIND WARNING IN EFFECT FROM 9 AM TO 9 PM MDT THURSDAY... * WHAT...West winds 30 to 40 mph with gusts up to 60 mph expected. * WHERE...Southeast Bighorn Basin and North Bighorn Basin. * WHEN...From 9 AM to 9 PM MDT Thursday. * IMPACTS...Travel could be difficult, especially for high profile vehicles. * ADDITIONAL DETAILS...Strongest winds are most likely Thursday afternoon. $$ WYZ010-011-121300- /O.UPG.KRIW.HW.A.0008.260312T1500Z-260313T0300Z/ /O.EXA.KRIW.HW.W.0008.260312T1500Z-260313T0300Z/ Northeast Johnson County-Southeast Johnson County- Including the cities of Buffalo and Kaycee 1039 AM MDT Wed Mar 11 2026 ...HIGH WIND WARNING IN EFFECT FROM 9 AM TO 9 PM MDT THURSDAY... * WHAT...West winds 30 to 40 mph with gusts up to 65 mph expected. * WHERE...Northeast Johnson County and Southeast Johnson County. * WHEN...From 9 AM to 9 PM MDT Thursday. * IMPACTS...Travel could be difficult, especially for high profile vehicles. Sudden, strong cross winds are possible along Interstate 25 and Interstate 90. * ADDITIONAL DETAILS...The strongest winds will be most likely near the Bighorn Mountains, where sudden gusts up to 75 mph are possible. $$ WYZ002-015-121300- /O.EXT.KRIW.HW.W.0008.260312T0000Z-260313T0600Z/ Absaroka Mountains-Wind River Mountains East- 1039 AM MDT Wed Mar 11 2026 ...HIGH WIND WARNING NOW IN EFFECT FROM 6 PM THIS EVENING TO MIDNIGHT MDT THURSDAY NIGHT... * WHAT...West winds 30 to 50 mph with gusts up to 85 mph expected. * WHERE...Wind River Mountains East and Absaroka Mountains. * WHEN...From 6 PM this evening to midnight MDT Thursday Night. * IMPACTS...Travel could be difficult, especially for high profile vehicles traveling Highway 28 (South Pass) or Highway 296 (Chief Joseph Pass). * ADDITIONAL DETAILS...Moderate snowfall occurs Thursday, with the heaviest period being Thursday afternoon into early Thursday evening. Snow rates near 1 inch an hour are possible. Total snow accumulations 7 to 12 inches over the western Absaroka Range, with the strongest winds occurring on the eastern slopes. $$ WYZ003-121300- /O.EXT.KRIW.HW.W.0008.260312T0600Z-260313T0300Z/ Cody Foothills- Including the cities of Cody, Clark, and Meeteetse 1039 AM MDT Wed Mar 11 2026 ...HIGH WIND WARNING NOW IN EFFECT FROM MIDNIGHT TONIGHT TO 9 PM MDT THURSDAY... * WHAT...West winds 30 to 50 mph with gusts up to 70 mph expected. * WHERE...Cody Foothills. * WHEN...From midnight tonight to 9 PM MDT Thursday. * IMPACTS...Travel could be difficult, especially for high profile vehicles traveling Highway 28. Isolated gusts up to 80 mph possible near Clark. $$ WYZ008-009-121300- /O.EXT.KRIW.HW.W.0008.260312T0600Z-260313T0300Z/ Bighorn Mountains West-Bighorn Mountains Southeast- 1039 AM MDT Wed Mar 11 2026 ...HIGH WIND WARNING NOW IN EFFECT FROM MIDNIGHT TONIGHT TO 9 PM MDT THURSDAY... * WHAT...West winds 35 to 45 mph with gusts up to 80 mph expected. * WHERE...Bighorn Mountains Southeast and Bighorn Mountains West. * WHEN...From midnight tonight to 9 PM MDT Thursday. * IMPACTS...Travel could be difficult through mountain passes, like Granite and Powder River Passes. * ADDITIONAL DETAILS...The strongest winds occur on the eastern side of the mountains. Snow occurs along and north of Powder River Pass, with total accumulations 2 to 4 inches along the mountain passes. $$ WYZ019-020-022-121300- /O.EXT.KRIW.HW.W.0008.260312T0600Z-260313T0600Z/ Green Mountains and Rattlesnake Range-Natrona County Lower Elevations-Casper Mountain- Including the cities of Jeffrey City and Casper 1039 AM MDT Wed Mar 11 2026 ...HIGH WIND WARNING NOW IN EFFECT FROM MIDNIGHT TONIGHT TO MIDNIGHT MDT THURSDAY NIGHT... * WHAT...West winds 35 to 45 mph with gusts up to 70 mph expected. * WHERE...Casper Mountain, Green Mountains and Rattlesnake Range, and Natrona County Lower Elevations. * WHEN...From midnight tonight to midnight MDT Thursday Night. * IMPACTS...Travel could be difficult, especially for high profile vehicles. * ADDITIONAL DETAILS...Wind prone locations, like Outer Drive in Casper, will likely see stronger gusts up to 75 mph. $$ WYZ005-121300- /O.CON.KRIW.HW.W.0008.260312T1500Z-260313T0300Z/ Southwest Bighorn Basin- Including the cities of Thermopolis 1039 AM MDT Wed Mar 11 2026 ...HIGH WIND WARNING REMAINS IN EFFECT FROM 9 AM TO 9 PM MDT THURSDAY... * WHAT...West winds 30 to 40 mph with gusts up to 65 mph expected. * WHERE...Southwest Bighorn Basin. * WHEN...From 9 AM to 9 PM MDT Thursday. * IMPACTS...Travel could be difficult, especially for high profile vehicles. $$ WYZ007-121300- /O.CON.KRIW.HW.W.0008.260312T1500Z-260313T0300Z/ Owl Creek and Bridger Mountains- 1039 AM MDT Wed Mar 11 2026 ...HIGH WIND WARNING REMAINS IN EFFECT FROM 9 AM TO 9 PM MDT THURSDAY... * WHAT...West winds 35 to 50 mph with gusts up to 80 mph expected. * WHERE...Owl Creek and Bridger Mountains. * WHEN...From 9 AM to 9 PM MDT Thursday. * IMPACTS...Travel could be difficult along Highway 20, through Wind River Canyon. * ADDITIONAL DETAILS...Strongest winds are expected over the western portion of the range, the Owl Creeks. PRECAUTIONARY/PREPAREDNESS ACTIONS... Use caution if you must drive. Secure loose objects. && $$ WYZ016>018-030-121300- /O.CON.KRIW.HW.W.0008.260312T1500Z-260313T0300Z/ Upper Wind River Basin-Wind River Basin-Lander Foothills-East Sweetwater County- Including the cities of Wamsutter, Lander, Shoshoni, Riverton, and Dubois 1039 AM MDT Wed Mar 11 2026 ...HIGH WIND WARNING REMAINS IN EFFECT FROM 9 AM TO 9 PM MDT THURSDAY... * WHAT...West winds 35 to 45 mph with gusts up to 65 mph expected. * WHERE...Lander Foothills, Upper Wind River Basin, Wind River Basin, and East Sweetwater County. * WHEN...From 9 AM to 9 PM MDT Thursday. * IMPACTS...Travel could be difficult, especially for high profile vehicles. $$ For more information from the National Weather Service, visit https://weather.gov/riw/ . Wittmann
057 WWUS75 KRIW 120741 NPWRIW URGENT - WEATHER MESSAGE National Weather Service Riverton WY 141 AM MDT Thu Mar 12 2026 WYZ002-015-130000- /O.CON.KRIW.HW.W.0008.000000T0000Z-260313T0600Z/ Absaroka Mountains-Wind River Mountains East- 141 AM MDT Thu Mar 12 2026 ...HIGH WIND WARNING REMAINS IN EFFECT UNTIL MIDNIGHT MDT TONIGHT... * WHAT...West winds 35 to 55 mph with gusts up to 85 mph expected. * WHERE...Wind River Mountains East and Absaroka Mountains. * WHEN...Until midnight MDT tonight. * IMPACTS...Travel could be difficult, especially for high profile vehicles traveling Highway 28 (South Pass) or Highway 296 (Chief Joseph Pass). * ADDITIONAL DETAILS...Moderate snowfall occurs Thursday, with the heaviest period being Thursday afternoon into early Thursday evening. Snow rates near 1 inch an hour are possible. Total snow accumulations 7 to 12 inches over the western Absaroka Range, with the strongest winds occurring on the eastern slopes. PRECAUTIONARY/PREPAREDNESS ACTIONS... Use caution if you must drive. Secure loose objects. && $$ WYZ003-130000- /O.CON.KRIW.HW.W.0008.000000T0000Z-260313T0300Z/ Cody Foothills- Including the cities of Clark, Cody, and Meeteetse 141 AM MDT Thu Mar 12 2026 ...HIGH WIND WARNING REMAINS IN EFFECT UNTIL 9 PM MDT THIS EVENING... * WHAT...West winds 30 to 50 mph with gusts up to 70 mph expected. * WHERE...Cody Foothills. * WHEN...Until 9 PM MDT this evening. * IMPACTS...Travel could be difficult, especially for high profile vehicles traveling Highway 28. Isolated gusts up to 80 mph possible near Clark. PRECAUTIONARY/PREPAREDNESS ACTIONS... Use caution if you must drive. Secure loose objects. && $$ WYZ008-009-130000- /O.CON.KRIW.HW.W.0008.000000T0000Z-260313T0300Z/ Bighorn Mountains West-Bighorn Mountains Southeast- 141 AM MDT Thu Mar 12 2026 ...HIGH WIND WARNING REMAINS IN EFFECT UNTIL 9 PM MDT THIS EVENING... * WHAT...West winds 40 to 50 mph with gusts up to 85 mph. * WHERE...Bighorn Mountains Southeast and Bighorn Mountains West. * WHEN...Until 9 PM MDT this evening. * IMPACTS...Travel could be difficult through mountain passes, like Granite and Powder River Passes. * ADDITIONAL DETAILS...The strongest winds occur on the eastern side of the mountains. Snow occurs along and north of Powder River Pass, with total accumulations 2 to 4 inches along the mountain passes. PRECAUTIONARY/PREPAREDNESS ACTIONS... Use caution if you must drive. Secure loose objects. && $$ WYZ019-020-022-130000- /O.CON.KRIW.HW.W.0008.000000T0000Z-260313T0600Z/ Green Mountains and Rattlesnake Range-Natrona County Lower Elevations-Casper Mountain- Including the cities of Casper and Jeffrey City 141 AM MDT Thu Mar 12 2026 ...HIGH WIND WARNING REMAINS IN EFFECT UNTIL MIDNIGHT MDT TONIGHT... * WHAT...West winds 35 to 45 mph with gusts up to 70 mph expected. * WHERE...Casper Mountain, Green Mountains and Rattlesnake Range, and Natrona County Lower Elevations. * WHEN...Until midnight MDT tonight. * IMPACTS...Travel could be difficult, especially for high profile vehicles. * ADDITIONAL DETAILS...Wind prone locations, like Outer Drive in Casper, will likely see stronger gusts up to 75 mph. $$ WYZ004-006-130000- /O.CON.KRIW.HW.W.0008.260312T1500Z-260313T0300Z/ North Bighorn Basin-Southeast Bighorn Basin- Including the cities of Ten Sleep, Greybull, Worland, Shell, Powell, Basin, and Lovell 141 AM MDT Thu Mar 12 2026 ...HIGH WIND WARNING REMAINS IN EFFECT FROM 9 AM THIS MORNING TO 9 PM MDT THIS EVENING... * WHAT...West winds 30 to 40 mph with gusts up to 65 mph expected. * WHERE...Southeast Bighorn Basin and North Bighorn Basin. * WHEN...From 9 AM this morning to 9 PM MDT this evening. * IMPACTS...Travel could be difficult, especially for high profile vehicles. * ADDITIONAL DETAILS...Strongest winds are most likely Thursday afternoon. $$ WYZ005-130000- /O.CON.KRIW.HW.W.0008.260312T1500Z-260313T0300Z/ Southwest Bighorn Basin- Including the cities of Thermopolis 141 AM MDT Thu Mar 12 2026 ...HIGH WIND WARNING REMAINS IN EFFECT FROM 9 AM THIS MORNING TO 9 PM MDT THIS EVENING... * WHAT...West winds 30 to 40 mph with gusts up to 65 mph expected. * WHERE...Southwest Bighorn Basin. * WHEN...From 9 AM this morning to 9 PM MDT this evening. * IMPACTS...Travel could be difficult, especially for high profile vehicles. PRECAUTIONARY/PREPAREDNESS ACTIONS... Use caution if you must drive. Secure loose objects. && $$ WYZ007-130000- /O.CON.KRIW.HW.W.0008.260312T1500Z-260313T0300Z/ Owl Creek and Bridger Mountains- 141 AM MDT Thu Mar 12 2026 ...HIGH WIND WARNING REMAINS IN EFFECT FROM 9 AM THIS MORNING TO 9 PM MDT THIS EVENING... * WHAT...West winds 35 to 50 mph with gusts up to 80 mph expected. * WHERE...Owl Creek and Bridger Mountains. * WHEN...From 9 AM this morning to 9 PM MDT this evening. * IMPACTS...Travel could be difficult along Highway 20, through Wind River Canyon. * ADDITIONAL DETAILS...Strongest winds are expected over the western portion of the range, the Owl Creeks. PRECAUTIONARY/PREPAREDNESS ACTIONS... Use caution if you must drive. Secure loose objects. && $$ WYZ010-011-130000- /O.CON.KRIW.HW.W.0008.260312T1500Z-260313T0300Z/ Northeast Johnson County-Southeast Johnson County- Including the cities of Kaycee and Buffalo 141 AM MDT Thu Mar 12 2026 ...HIGH WIND WARNING REMAINS IN EFFECT FROM 9 AM THIS MORNING TO 9 PM MDT THIS EVENING... * WHAT...West winds 30 to 40 mph with gusts up to 65 mph expected. * WHERE...Northeast Johnson County and Southeast Johnson County. * WHEN...From 9 AM this morning to 9 PM MDT this evening. * IMPACTS...Travel could be difficult, especially for high profile vehicles. Sudden, strong cross winds are possible along Interstate 25 and Interstate 90. * ADDITIONAL DETAILS...The strongest winds will be most likely near the Bighorn Mountains, where sudden gusts up to 75 mph are possible. $$ WYZ016>018-030-130000- /O.CON.KRIW.HW.W.0008.260312T1500Z-260313T0300Z/ Upper Wind River Basin-Wind River Basin-Lander Foothills-East Sweetwater County- Including the cities of Riverton, Wamsutter, Dubois, Lander, and Shoshoni 141 AM MDT Thu Mar 12 2026 ...HIGH WIND WARNING REMAINS IN EFFECT FROM 9 AM THIS MORNING TO 9 PM MDT THIS EVENING... * WHAT...West winds 35 to 45 mph with gusts up to 65 mph expected. * WHERE...Lander Foothills, Upper Wind River Basin, Wind River Basin, and East Sweetwater County. * WHEN...From 9 AM this morning to 9 PM MDT this evening. * IMPACTS...Travel could be difficult, especially for high profile vehicles. PRECAUTIONARY/PREPAREDNESS ACTIONS... Use caution if you must drive. Secure loose objects. && $$ For more information from the National Weather Service, visit https://weather.gov/riw/ . Dziewaltowski
465 WWUS75 KRIW 122053 NPWRIW URGENT - WEATHER MESSAGE National Weather Service Riverton WY 253 PM MDT Thu Mar 12 2026 WYZ002-015-130600- /O.CON.KRIW.HW.W.0008.000000T0000Z-260313T0600Z/ Absaroka Mountains-Wind River Mountains East- 253 PM MDT Thu Mar 12 2026 ...HIGH WIND WARNING REMAINS IN EFFECT UNTIL MIDNIGHT MDT TONIGHT... * WHAT...West winds 40 to 50 mph with gusts up to 80 mph. * WHERE...Wind River Mountains East and Absaroka Mountains. * WHEN...Until midnight MDT tonight. * IMPACTS...Travel will be difficult, especially for high profile vehicles traveling Highway 28 (South Pass) or Highway 296 (Chief Joseph Pass). $$ WYZ003-130300- /O.CON.KRIW.HW.W.0008.000000T0000Z-260313T0300Z/ Cody Foothills- Including the cities of Cody, Meeteetse, and Clark 253 PM MDT Thu Mar 12 2026 ...HIGH WIND WARNING REMAINS IN EFFECT UNTIL 9 PM MDT THIS EVENING... * WHAT...West winds 40 to 55 mph with gusts up to 80 mph. * WHERE...Cody Foothills. * WHEN...Until 9 PM MDT this evening. * IMPACTS...Travel will be difficult, especially for high profile vehicles traveling Highway 28. $$ WYZ004-006-130300- /O.CON.KRIW.HW.W.0008.000000T0000Z-260313T0300Z/ North Bighorn Basin-Southeast Bighorn Basin- Including the cities of Greybull, Worland, Ten Sleep, Basin, Lovell, Shell, and Powell 253 PM MDT Thu Mar 12 2026 ...HIGH WIND WARNING REMAINS IN EFFECT UNTIL 9 PM MDT THIS EVENING... * WHAT...Northwest winds 25 to 35 mph with gusts up to 60 mph. * WHERE...Southeast Bighorn Basin and North Bighorn Basin. * WHEN...Until 9 PM MDT this evening. * IMPACTS...Travel will be difficult, especially for high profile vehicles. $$ WYZ005-130300- /O.CON.KRIW.HW.W.0008.000000T0000Z-260313T0300Z/ Southwest Bighorn Basin- Including the cities of Thermopolis 253 PM MDT Thu Mar 12 2026 ...HIGH WIND WARNING REMAINS IN EFFECT UNTIL 9 PM MDT THIS EVENING... * WHAT...West winds 35 to 45 mph with gusts up to 75 mph. * WHERE...Southwest Bighorn Basin. * WHEN...Until 9 PM MDT this evening. * IMPACTS...Travel will be difficult, especially for high profile vehicles. $$ WYZ007-130300- /O.CON.KRIW.HW.W.0008.000000T0000Z-260313T0300Z/ Owl Creek and Bridger Mountains- 253 PM MDT Thu Mar 12 2026 ...HIGH WIND WARNING REMAINS IN EFFECT UNTIL 9 PM MDT THIS EVENING... * WHAT...West winds 40 to 55 mph with gusts up to 80 mph. * WHERE...Owl Creek and Bridger Mountains. * WHEN...Until 9 PM MDT this evening. * IMPACTS...Travel will be difficult, especially for high profile vehicles along Highway 20. $$ WYZ008-009-130300- /O.CON.KRIW.HW.W.0008.000000T0000Z-260313T0300Z/ Bighorn Mountains West-Bighorn Mountains Southeast- 253 PM MDT Thu Mar 12 2026 ...HIGH WIND WARNING REMAINS IN EFFECT UNTIL 9 PM MDT THIS EVENING... * WHAT...West winds 35 to 45 mph with gusts up to 75 mph. * WHERE...Bighorn Mountains Southeast and Bighorn Mountains West. * WHEN...Until 9 PM MDT this evening. * IMPACTS...Travel will be difficult over mountain passes, including Granite and Powder River Passes. $$ WYZ010-011-130300- /O.CON.KRIW.HW.W.0008.000000T0000Z-260313T0300Z/ Northeast Johnson County-Southeast Johnson County- Including the cities of Buffalo and Kaycee 253 PM MDT Thu Mar 12 2026 ...HIGH WIND WARNING REMAINS IN EFFECT UNTIL 9 PM MDT THIS EVENING... * WHAT...Northwest winds 30 to 40 mph with gusts up to 70 mph. * WHERE...Northeast Johnson County and Southeast Johnson County. * WHEN...Until 9 PM MDT this evening. * IMPACTS...Travel will be difficult, especially for high profile vehicles. Sudden, strong cross winds are possible along Interstate 25 and Interstate 90. $$ WYZ016>018-030-130300- /O.CON.KRIW.HW.W.0008.000000T0000Z-260313T0300Z/ Upper Wind River Basin-Wind River Basin-Lander Foothills-East Sweetwater County- Including the cities of Lander, Dubois, Wamsutter, Riverton, and Shoshoni 253 PM MDT Thu Mar 12 2026 ...HIGH WIND WARNING REMAINS IN EFFECT UNTIL 9 PM MDT THIS EVENING... * WHAT...West winds 35 to 45 mph with gusts up to 75 mph. * WHERE...Lander Foothills, Upper Wind River Basin, Wind River Basin, and East Sweetwater County. * WHEN...Until 9 PM MDT this evening. * IMPACTS...Travel will be difficult, especially for high profile vehicles. $$ WYZ019-020-022-130600- /O.CON.KRIW.HW.W.0008.000000T0000Z-260313T0600Z/ Green Mountains and Rattlesnake Range-Natrona County Lower Elevations-Casper Mountain- Including the cities of Jeffrey City and Casper 253 PM MDT Thu Mar 12 2026 ...HIGH WIND WARNING REMAINS IN EFFECT UNTIL MIDNIGHT MDT TONIGHT... * WHAT...West winds 35 to 45 mph with gusts up to 80 mph. * WHERE...Casper Mountain, Green Mountains and Rattlesnake Range, and Natrona County Lower Elevations. * WHEN...Until midnight MDT tonight. * IMPACTS...Travel will be difficult, especially for high profile vehicles. $$ For more information from the National Weather Service, visit https://weather.gov/riw/ . VandenBoogart
742 WWUS75 KRIW 130257 NPWRIW URGENT - WEATHER MESSAGE National Weather Service Riverton WY 857 PM MDT Thu Mar 12 2026 WYZ019-020-022-130400- /O.CAN.KRIW.HW.W.0008.000000T0000Z-260313T0600Z/ Green Mountains and Rattlesnake Range-Natrona County Lower Elevations-Casper Mountain- Including the cities of Casper and Jeffrey City 857 PM MDT Thu Mar 12 2026 ...HIGH WIND WARNING IS CANCELLED... Winds have decreased this evening and the High Wind Warning has been cancelled. $$ WYZ003>011-016>018-030-130400- /O.EXP.KRIW.HW.W.0008.000000T0000Z-260313T0300Z/ 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-Upper Wind River Basin-Wind River Basin-Lander Foothills-East Sweetwater County- Including the cities of Worland, Thermopolis, Riverton, Clark, Cody, Buffalo, Greybull, Wamsutter, Shoshoni, Dubois, Lander, Powell, Lovell, Kaycee, Meeteetse, Ten Sleep, Shell, and Basin 857 PM MDT Thu Mar 12 2026 ...HIGH WIND WARNING WILL EXPIRE AT 9 PM MDT THIS EVENING... Winds will continue to decrease across the area this evening and the High Wind Warning will expire at 9 PM. However, wind gusts of 50 to 60 mph remain possible through the rest of the evening, especially in the Lander area. $$ WYZ002-015-130600- /O.CON.KRIW.HW.W.0008.000000T0000Z-260313T0600Z/ Absaroka Mountains-Wind River Mountains East- 857 PM MDT Thu Mar 12 2026 ...HIGH WIND WARNING REMAINS IN EFFECT UNTIL MIDNIGHT MDT TONIGHT... * WHAT...West winds 30 to 40 mph with gusts up to 70 mph. * WHERE...Wind River Mountains East and Absaroka Mountains. * WHEN...Until midnight MDT tonight. * IMPACTS...Travel will be difficult, especially for high profile vehicles traveling Highway 28 (South Pass) or Highway 296 (Chief Joseph Pass). $$ For more information from the National Weather Service, visit https://weather.gov/riw/ . Myers
605 WWUS75 KRIW 130539 NPWRIW URGENT - WEATHER MESSAGE National Weather Service Riverton WY 1139 PM MDT Thu Mar 12 2026 WYZ002-015-130645- /O.EXP.KRIW.HW.W.0008.000000T0000Z-260313T0600Z/ Absaroka Mountains-Wind River Mountains East- 1139 PM MDT Thu Mar 12 2026 ...HIGH WIND WARNING WILL EXPIRE AT MIDNIGHT MDT TONIGHT... Winds continue to decrease below warning criteria across the area. Thus, the High Wind Warnings will be allowed to expire. $$ For more information from the National Weather Service, visit https://weather.gov/riw/ . TL
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 Mar 10, 10:37 PM MDT, 4 hours 24 minutes earlier. Its key messages:
- Widespread strong gusty winds in excess of 50 mph for Thursday, with gusty winds persisting through Saturday.
- Aside from strong gusty winds, a prolonged period of snowfall is expected to set up across the northern mountains Thursday through Saturday.
- Another cold front passage looks to bring chances for widespread light snowfall by Saturday across all elevations.
Area forecast discussion, Mar 10, 10:37 PM MDT, 4 hours 24 minutes before
Area Forecast Discussion National Weather Service Riverton WY 1037 PM MDT Tue Mar 10 2026 .KEY MESSAGES... - Widespread strong gusty winds in excess of 50 mph for Thursday, with gusty winds persisting through Saturday. - Aside from strong gusty winds, a prolonged period of snowfall is expected to set up across the northern mountains Thursday through Saturday. - Another cold front passage looks to bring chances for widespread light snowfall by Saturday across all elevations. && .UPDATE... Issued at 1236 PM MDT Tue Mar 10 2026 The main update comes with adding High Wind Watches for much of the area for the anticipated wind Wednesday night through Thursday evening. Confidence is high (80-90 percent) in high wind occurring. The places with the least confidence are southwestern Wyoming, where gusts may be more in the 50 to 55 mph range, so have left them out of the watch for now. The other area is the Bighorn Basin, especially the central to eastern areas, where the strongest winds may not make it. However, the western portions of these zones have higher confidence, and even gusts 45 mph or greater are looking likely towards the eastern basin. EFI/SOT (a tool to determine the "unusual-ness" of a weather event) is highlighting the entire area in an 80th to 99th percentile for wind gusts, especially east of the Divide. && .DISCUSSION... Issued at 308 AM MDT Tue Mar 10 2026 A slow cold front continues to trek its way across the Cowboy State today. As of writing this early Tuesday morning, the front has made its way into portions of Fremont County. This can be seen through temperatures dropping around 10 degrees and winds switching from the northwest to the northeast. The front is expected to slowly move south through the remainder of the morning. Temperatures for once look to be around normal to slightly below with highs forecast to be in the 30s to mid 40s. Precipitation is expected to start developing behind the front across parts of northern WY this morning. Temperatures should be cold enough to allow for some snow accumulation over parts of the northern WY. However, due to the prolonged period of warm temperatures and strong sun angle, snow may be mainly limited to grassy surfaces during the day. Showers will move south through the afternoon and evening bringing chances to portions of western and central WY. Showers dissipate by the late evening hours on Tuesday. Snow accumulation looks to be minimal across higher and lower elevations. For the higher elevations of the Absarokas, Tetons, Gros Ventre, northern Wind River, and Bighorn Ranges, 2 to 4 inches of snow looks the most likely (50-80%). However, portions of the Absarokas and Bighorns may see localized higher amounts nearing or exceeding 6 inches (20-50%). As for lower elevations, snow accumulation of more than a trace looks the most likely across northern WY, western valleys, and portions of Natrona County. The most favorable locations for accumulating snow looks to be across the western Bighorn Basin and Johnson County especially nearby Buffalo. Current probabilistic guidance gives these locations a 40-70% chance of seeing 2 or more inches of snow. A few isolated areas may see amounts nearing 3 inches. Other locations, likely see little to no snow accumulation or no precipitation at all. Aside from precipitation and colder temperatures, gusty winds will once again return to parts of the state this afternoon. The good news is winds should be weaker than the past few days with gusts likely only ranging from 30 to 45 mph. The favorable locations to see these winds gusts would be across central and southern WY. Northern WY may see some breezy winds with gusts only around 20 mph. Wednesday sees a brief break in the action with mainly dry conditions, near seasonable temperatures and breezy to gusty winds. Winds once again look to be mostly widespread with gusts of 20 to 30 mph possible. The strongest gusts look to setup across the Wind Corridor from Casper and Rock Springs along with higher elevation mountain passes such as Togwotee, Powder River and South Passes. These locations may see periodic gusts of 40 mph or more at times during the afternoon and evening Wednesday. All focus will then shift to late Wednesday through late Saturday evening when a very potent jet sets up across the northern half of the CONUS. 500 mb winds look very robust with a strong jet streak of 120 to 150 kts stretching from southwestern Canada down into the northern High Plains. As a result, the pressure gradient will remain tight across the region with 700 mb winds of 50-80 kts settling over much of the state. The strongest winds currently look to be east of the Divide with widespread wind gusts in excess of 50 mph likely throughout much of the day Friday. Current probabilistic guidance gives nearly all lower elevation locations east of the Divide a solid 40-70% chance of seeing gusts in excess of 60 mph. Higher elevations will see very potent wind gusts, likely in excess of 80 mph at times. This likely creates dangerous conditions along mountain highways/routes such as Powder River/Granite Passes, South Pass, and Chief Joseph (Wyoming Highway 296). Localized gusts of 70 mph or more do not look totally impossible across the lower elevations. Overall, just the wind threat for Thursday will need continued monitoring over the next few days. There is increasing confidence in High Wind Watches being issued but not at this time. These strong gusty winds look to persist into Friday and Saturday. Winds are expected to decrease some overnight Thursday into Friday and then again Friday into Saturday. However there will likely be gusty winds through the overnight hours these days. Winds are expected to gradually increase each day during the late morning and early afternoon hours. Wind gusts on Friday and Saturday are currently looking strong as well but not to the same extent as Thursday. 700 mb winds do weaken some with speeds ranging from 40-70 kts over much of the state. This would translate to widespread wind gusts of 40 to 60 mph especially east of the Divide. That being said its very possible High Wind Highlights may need to be extended throughout these days as strong gusty winds likely persist over the same locations. The other aspect of this upcoming weather event will be a prolonged period of precipitation across the higher elevations of northern and central WY. Predominately westerly/northwesterly flow will persist over the region Thursday through Saturday. This looks to funnel precipitation across northern mountain ranges such as the Absaroka, Bighorn, Teton, Gros Ventre, and northern Wind River Ranges. The most favorable mountain ranges looks to be the Absarokas and portions of YNP. Models currently show QPF amounts starting Thursday through Saturday morning ranging from 0.30 to over 1 in mainly over the Absarokas. There is one caveat to this though and that is very mild temperatures across much of the region. 700 mb temperatures are currently forecast to range from -2 to -5C which would keep snow levels at around 7500-8000 ft. That being said, snow ratios would still be rather low even above 8000 ft. Models are showing snow ratios around 10:1 in the best situations with ratios further decreasing after Thursday. So currently, snowfall amounts as a result of the prolonged period of favorable flow mostly range from 4 to 10 inches. The most favorable location, the Absarokas has the highest amounts ranging from 12 to 18 inches with the highest peaks possibly seeing more. It is important to keep in mind that these amounts are still very preliminary and will likely change over the next few days. Overall, the main take away is that any snow that falls Thursday through Saturday morning will likely be very wet and heavy. Now combine the very strong winds that are forecast across the higher elevations with moderate to heavy snowfall. There is the potential for very hazardous travel conditions to occur at times Thursday through Saturday across the higher elevations of northern WY. A cold front will eventually make its way into the area by Saturday and this frontal passage should gradually cut off the strong winds. Behind the front there does look to be much colder air that will filter into the region. Along with the colder temperatures there will be chances for widespread precipitation across all elevations mainly east of the Divide. Models are not showing any major impacts with the current likely outcome being a few inches of snowfall Saturday night into Sunday morning. There is one last thing of note, currently there are early indications for a very potent area of high pressure to build in over the western CONUS by the start of next week (March 16th). Now, especially with this past winter, a very potent area of high pressure is nothing out of the ordinary. However, there is increasing confidence and agreement among many long range models that this will not be your run of the mill period of warm temperature and dry conditions. It is looking increasingly possible that much of the western CONUS and Intermountain West will see a period of WELL above normal temperatures. The NBM, which usually tends to be on the more tame side when compared to other models, is showing record breaking temperatures. Highs are currently forecast to get into the low to mid 70s for the start of the week. By the second half of the week there is the potential to see all time March high temperature records being shattered by nearly 5 degrees. For comparison Lander's highest temperature recorded during the month of March is 76F. This is still quite a ways out but the concern is the wide consensus among long range models of this occurring and with each passing day confidence seems to only grow. So this will be one of the many things to monitor over the next few days. && .AVIATION /06Z TAFS THROUGH 06Z THURSDAY/... Issued at 1032 PM MDT Tue Mar 10 2026 Most snowfall has ended for local airports, but some lingering light snow showers will continue at KJAC no later than 07Z, and KCPr no later than 08Z. CLoud decks will lift above MVFR criteria through the night, with only patchy midlevel clouds expected into the day Wednesday. Another round of gusty winds is expected during the day Wednesday, with frequent gusts above 25kts. Another round of snow showers moves into the KJAC vicinity around 00Z/12, and has a low probability of reaching KBPI/KPNA between 03Z and 06Z. Please see the Aviation Weather Center and/or CWSU ZLC and ZDV for the latest information on icing and turbulence forecasts. && .RIW WATCHES/WARNINGS/ADVISORIES... High Wind Watch from late Wednesday night through Thursday evening for WYZ002-015. High Wind Watch from late Wednesday night through Thursday evening for WYZ003. High Wind Watch from Thursday morning through Thursday evening for WYZ004>011-016>018-030. High Wind Watch from late Wednesday night through Thursday evening for WYZ019-020. && UPDATE...Wittmann DISCUSSION...Dziewaltowski AVIATION...Straub
Hazardous weather outlook, Mar 10, 3:41 AM MDT, 23 hours 20 minutes before
Hazardous Weather Outlook National Weather Service Riverton WY 341 AM MDT Tue Mar 10 2026 WYZ001>020-022>030-111345- 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- 341 AM MDT Tue Mar 10 2026 This Hazardous Weather Outlook is for Western and Central Wyoming. .DAY ONE...Today and tonight. Wind gusts of 30 to 45 mph will be widespread across much of the state with the exception being northern WY where winds will be slightly lower. Light snow will develop over northern WY this morning as a cold front continues to move south. Light snow showers will gradually make their way south into portions of western and central WY by the afternoon/evening. The heaviest accumulations in the mountains will occur over the Bighorns and Absarokas, with 2 to 4 inches possible and localized amounts nearing 6 inches. Snowfall accumulations of 1 to 2 inches is expected across the western Bighorn Basin and portions of Johnson County. .DAYS TWO THROUGH SEVEN...Wednesday through Monday. Thursday Through Saturday...Widespread wind gusts of 50 to 60 mph look to impact much of the forecast area. Hazardous travel conditions are likely across mountain passes in northern and central WY, where strong wind gusts in excess of 70 mph will be possible. A prolonged period of heavy wet mountain snow is expected to begin Thursday with the greatest impacts across northern mountains, especially the Absarokas. A cold front passage may bring chances for light snowfall across the lower elevations east of the Divide Saturday afternoon/evening. .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 |
|---|---|---|---|---|
| Mar 11, 2:24 AM MDT | Winter Storm Watch | RIW | Fremont, Hot Springs, Lincoln, Park, Sublette, Teton | 8 hr |
| Mar 11, 10:51 AM MDT | Winter Weather Advisory | RIW | Fremont, Lincoln, Park, Sublette, Teton | 37 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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.