Alert archive / Wyoming / High Wind Warnings in 2021
High Wind Warning 24, NWS Riverton, WY
NWS Riverton, WY issued this high wind warning at Dec 23, 2021, 1:16 AM MST for 5 counties in Wyoming. It took effect at Dec 23, 2021, 11:00 AM MST. It was in force for 9 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
- Dec 23, 2021, 1:16 AM MST (08:16 UTC)
- In effect from
- Dec 23, 2021, 11:00 AM MST
- Expired
- Dec 23, 2021, 8:00 PM MST
- In force
- 9 hr
- Issued by
- NWS Riverton, WY
Counties Fremont County, WY, Johnson County, WY, Natrona County, WY, Sublette County, WY, Sweetwater County, WY
The radar
The Riverton/Lander radar (KRIW), 32 km from the middle of the area, began a volume at 08:16 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, 8.3 hours before the alert went out and 28 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
- 2747 m above ground
- 0-6 km bulk shear
- 72 kt
- 0-1 km storm-relative helicity
- 129 m²/s²
- 0-3 km storm-relative helicity
- 244 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
592 WWUS75 KRIW 230816 NPWRIW URGENT - WEATHER MESSAGE National Weather Service Riverton WY 116 AM MST Thu Dec 23 2021 WYZ015-232300- /O.UPG.KRIW.HW.A.0019.211223T1800Z-211224T0300Z/ /O.NEW.KRIW.HW.W.0024.211223T1800Z-211224T0300Z/ Wind River Mountains East- 116 AM MST Thu Dec 23 2021 ...HIGH WIND WARNING IN EFFECT FROM 11 AM THIS MORNING TO 8 PM MST THIS EVENING... * WHAT...Southwest winds 30 to 50 mph with gusts up to 75 mph expected. * WHERE...Wind River Mountains East. This includes Red Canyon and South Pass. * WHEN...From 11 AM Thursday to 8 PM MST Thursday. * IMPACTS...Travel could be difficult, especially for high profile vehicles. PRECAUTIONARY/PREPAREDNESS ACTIONS... Please keep two hands on your steering wheel in case of a sudden, strong wind gust. In a parking lot, park into the wind to minimize the possibility of your car door hitting another parked vehicle. && $$ WYZ019-020-232300- /O.UPG.KRIW.HW.A.0019.211223T1800Z-211224T0300Z/ /O.NEW.KRIW.HW.W.0024.211223T1800Z-211224T0300Z/ Green Mountains and Rattlesnake Range- Natrona County Lower Elevations- Including the cities of Jeffrey City and Casper 116 AM MST Thu Dec 23 2021 ...HIGH WIND WARNING IN EFFECT FROM 11 AM THIS MORNING TO 8 PM MST THIS EVENING... * WHAT...Southwest winds 30 to 40 mph with gusts up to 60 mph expected. * WHERE...Green Mountains and Rattlesnake Range and Natrona County Lower Elevations. * WHEN...From 11 AM Thursday to 8 PM MST Thursday. * IMPACTS...Travel could be difficult, especially for high profile vehicles. PRECAUTIONARY/PREPAREDNESS ACTIONS... Please keep two hands on your steering wheel in case of a sudden, strong wind gust. In a parking lot, park into the wind to minimize the possibility of your car door hitting another parked vehicle. && $$ WYZ010-232300- /O.UPG.KRIW.HW.A.0019.211223T1800Z-211224T0300Z/ /O.NEW.KRIW.HW.W.0024.211223T1800Z-211224T0300Z/ Northeast Johnson County- Including the city of Buffalo 116 AM MST Thu Dec 23 2021 ...HIGH WIND WARNING IN EFFECT FROM 11 AM THIS MORNING TO 8 PM MST THIS EVENING... * WHAT...Southwest winds 25 to 35 mph with gusts up to 60 mph expected. * WHERE...Northeast Johnson County. * WHEN...From 11 AM Thursday to 8 PM MST Thursday. * IMPACTS...Travel could be difficult, especially for high profile vehicles. PRECAUTIONARY/PREPAREDNESS ACTIONS... Please keep two hands on your steering wheel in case of a sudden, strong wind gust. In a parking lot, park into the wind to minimize the possibility of your car door hitting another parked vehicle. && $$ For more information from the National Weather Service visit https://weather.gov/riw
2 follow-up statements
934 WWUS75 KRIW 232058 NPWRIW URGENT - WEATHER MESSAGE National Weather Service Riverton WY 158 PM MST Thu Dec 23 2021 WYZ015-240300- /O.CON.KRIW.HW.W.0024.000000T0000Z-211224T0300Z/ Wind River Mountains East- 158 PM MST Thu Dec 23 2021 ...HIGH WIND WARNING REMAINS IN EFFECT UNTIL 8 PM MST THIS EVENING... * WHAT...Southwest winds 30 to 50 mph with gusts up to 75 mph expected. * WHERE...Wind River Mountains East. This includes Red Canyon and South Pass. * WHEN...Until 8 PM MST this evening. * IMPACTS...Travel could be difficult, especially for high profile vehicles. PRECAUTIONARY/PREPAREDNESS ACTIONS... People should avoid being outside in forested areas and around trees and branches. If possible, remain in the lower levels of your home during the windstorm, and avoid windows. Use caution if you must drive. && $$ WYZ019-020-240300- /O.CON.KRIW.HW.W.0024.000000T0000Z-211224T0300Z/ Green Mountains and Rattlesnake Range- Natrona County Lower Elevations- Including the cities of Jeffrey City and Casper 158 PM MST Thu Dec 23 2021 ...HIGH WIND WARNING REMAINS IN EFFECT UNTIL 8 PM MST THIS EVENING... * WHAT...Southwest winds 30 to 40 mph with gusts up to 60 mph expected. * WHERE...Green Mountains and Rattlesnake Range and Natrona County Lower Elevations. * WHEN...Until 8 PM MST this evening. * IMPACTS...Travel could be difficult, especially for high profile vehicles. PRECAUTIONARY/PREPAREDNESS ACTIONS... People should avoid being outside in forested areas and around trees and branches. If possible, remain in the lower levels of your home during the windstorm, and avoid windows. Use caution if you must drive. && $$ WYZ010-240300- /O.CON.KRIW.HW.W.0024.000000T0000Z-211224T0300Z/ Northeast Johnson County- Including the city of Buffalo 158 PM MST Thu Dec 23 2021 ...HIGH WIND WARNING REMAINS IN EFFECT UNTIL 8 PM MST THIS EVENING... * WHAT...Southwest winds 25 to 35 mph with gusts up to 60 mph expected. * WHERE...Northeast Johnson County. * WHEN...Until 8 PM MST this evening. * IMPACTS...Travel could be difficult, especially for high profile vehicles. PRECAUTIONARY/PREPAREDNESS ACTIONS... People should avoid being outside in forested areas and around trees and branches. If possible, remain in the lower levels of your home during the windstorm, and avoid windows. Use caution if you must drive. && $$ For more information from the National Weather Service visit https://weather.gov/riw
546 WWUS75 KRIW 240255 NPWRIW URGENT - WEATHER MESSAGE National Weather Service Riverton WY 755 PM MST Thu Dec 23 2021 WYZ015-240400- /O.EXP.KRIW.HW.W.0024.000000T0000Z-211224T0300Z/ Wind River Mountains East- 755 PM MST Thu Dec 23 2021 ...HIGH WIND WARNING WILL EXPIRE AT 8 PM MST THIS EVENING... Southwest wind of 30 to 40 mph with gusts to 60 mph are still possible through midnight around Red Canyon to near South Pass. $$ WYZ019-020-240400- /O.EXP.KRIW.HW.W.0024.000000T0000Z-211224T0300Z/ Green Mountains and Rattlesnake Range- Natrona County Lower Elevations- Including the cities of Jeffrey City and Casper 755 PM MST Thu Dec 23 2021 ...HIGH WIND WARNING WILL EXPIRE AT 8 PM MST THIS EVENING... Southwest wind of 25 to 35 mph with gusts 45 to 55 mph will occur in the mountains and along Outer Drive to Hat Six Road. $$ WYZ010-240400- /O.EXP.KRIW.HW.W.0024.000000T0000Z-211224T0300Z/ Northeast Johnson County- Including the city of Buffalo 755 PM MST Thu Dec 23 2021 ...HIGH WIND WARNING WILL EXPIRE AT 8 PM MST THIS EVENING... The threat for high wind has ended and the High Wind Warning will be allowed to expire. $$ For more information from the National Weather Service visit https://weather.gov/riw
The office that day
Everything else NWS Riverton, WY issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Dec 23, 1:44 AM MST | Winter Weather Advisory | RIW | Fremont, Lincoln, Sublette, Sweetwater | 25 hr |
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.