Alert archive / Wyoming / High Wind Warnings in 2021
High Wind Warning 18, NWS Riverton, WY
NWS Riverton, WY issued this high wind warning at Nov 30, 2021, 11:08 PM MST for Park County, Wyoming. It was in force for 13 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
- Nov 30, 2021, 11:08 PM MST (06:08 UTC)
- Expired
- Dec 1, 2021, 12:00 PM MST
- In force
- 13 hr
- Issued by
- NWS Riverton, WY
County Park County, WY
The radar
The Billings radar (KBLX), 167 km from the middle of the area, began a volume at 06:07 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, 6.1 hours before the alert went out and 187 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
- 2500 m above ground
- 0-6 km bulk shear
- 54 kt
- 0-1 km storm-relative helicity
- 255 m²/s²
- 0-3 km storm-relative helicity
- 370 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
602 WWUS75 KRIW 010608 NPWRIW URGENT - WEATHER MESSAGE National Weather Service Riverton WY 1108 PM MST Tue Nov 30 2021 WYZ003-011800- /O.NEW.KRIW.HW.W.0018.211201T0608Z-211201T1900Z/ Cody Foothills- Including the cities of Clark, Cody, and Meeteetse 1108 PM MST Tue Nov 30 2021 ...HIGH WIND WARNING IN EFFECT UNTIL NOON MST WEDNESDAY... * WHAT...West winds 25 to 35 mph with gusts up to 60 mph. Gusts to 75 mph just south of Clark. * WHERE...Cody Foothills. The strongest winds will occur from just south of Cody, northward to areas near Clark. * WHEN...Until noon Wednesday. * IMPACTS...Extreme blowover risk risk for lightweight and high- profile vehicles, including campers and tractor trailers. This includes Highway 120. * ADDITIONAL DETAILS...Please keep two hands on your steering wheel in case of a sudden, strong wind gust. PRECAUTIONARY/PREPAREDNESS ACTIONS... Use caution if you must drive. In a parking lot, park into the wind to minimize the possibility of your car door hitting another parked vehicle. && $$ 21
2 follow-up statements
271 WWUS75 KRIW 011314 NPWRIW URGENT - WEATHER MESSAGE National Weather Service Riverton WY 614 AM MST Wed Dec 1 2021 WYZ003-011900- /O.CON.KRIW.HW.W.0018.000000T0000Z-211201T1900Z/ Cody Foothills- Including the cities of Clark, Cody, and Meeteetse 614 AM MST Wed Dec 1 2021 ...HIGH WIND WARNING REMAINS IN EFFECT UNTIL NOON MST TODAY... * WHAT...West winds 25 to 35 mph with gusts up to 60 mph. Gusts to 75 mph just south of Clark. * WHERE...Cody Foothills. The strongest winds will occur from just south of Cody, northward to areas near Clark. * WHEN...Until noon today. * IMPACTS...Extreme blowover risk for lightweight and high- profile vehicles, including campers and tractor trailers. This includes Highway 120. * ADDITIONAL DETAILS...Please keep two hands on your steering wheel in case of a sudden, strong wind gust. * OBSERVED WINDS THROUGH 5 AM...A wind gust of 79 mph occurred at 430 AM, 8 miles south of Clark along Highway 120. In Cody, peak winds have generally been between 45 and 60 mph. PRECAUTIONARY/PREPAREDNESS ACTIONS... Use caution if you must drive. In a parking lot, park into the wind to minimize the possibility of your car door hitting another parked vehicle. && $$ 21
122 WWUS75 KRIW 011905 NPWRIW URGENT - WEATHER MESSAGE National Weather Service Riverton WY 1205 PM MST Wed Dec 1 2021 WYZ003-012015- /O.EXP.KRIW.HW.W.0018.000000T0000Z-211201T1900Z/ Cody Foothills- Including the cities of Clark, Cody, and Meeteetse 1205 PM MST Wed Dec 1 2021 ...HIGH WIND WARNING HAS EXPIRED... Gusty winds will continue across the Cody Foothills this afternoon, especially along State Highway 120, but are no longer forecast to reach warning criteria. Thus the High Wind Warning will be allowed to expire. Travelers are advised to remain cautious through the afternoon. $$ For more information from the National Weather Service visit https://weather.gov/riw
Nearby
High Wind Warnings in Wyoming, 2021Every high wind warning in 2021
Sources
The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.