Alert archive / Wyoming / High Wind Warnings in 2021
High Wind Warning 15, NWS Riverton, WY
NWS Riverton, WY issued this high wind warning at Oct 24, 2021, 2:13 PM MDT for Fremont County, Natrona County, Sweetwater County, Wyoming. It took effect at Oct 25, 2021, 9:00 AM MDT. It was in force for 12 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
- Oct 24, 2021, 2:13 PM MDT (20:13 UTC)
- In effect from
- Oct 25, 2021, 9:00 AM MDT
- Expired
- Oct 25, 2021, 9:00 PM MDT
- In force
- 12 hr
- Issued by
- NWS Riverton, WY
Counties Fremont County, WY, Natrona County, WY, Sweetwater County, WY
The radar
The Riverton/Lander radar (KRIW), 65 km from the middle of the area, began a volume at 20:14 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 12:00Z, 8.2 hours before the alert went out and 62 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
- 1526 m above ground
- 0-6 km bulk shear
- 29 kt
- 0-1 km storm-relative helicity
- -35 m²/s²
- 0-3 km storm-relative helicity
- 75 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
983 WWUS75 KRIW 242013 NPWRIW URGENT - WEATHER MESSAGE National Weather Service Riverton WY 213 PM MDT Sun Oct 24 2021 WYZ019-020-030-251300- /O.UPG.KRIW.HW.A.0011.211025T1500Z-211026T0300Z/ /O.NEW.KRIW.HW.W.0015.211025T1500Z-211026T0300Z/ Green Mountains and Rattlesnake Range- Natrona County Lower Elevations-East Sweetwater County- Including the cities of Jeffrey City, Casper, and Wamsutter 213 PM MDT Sun Oct 24 2021 ...HIGH WIND WARNING IN EFFECT FROM 9 AM TO 9 PM MDT MONDAY... * WHAT...Southwest winds 25 to 35 mph with gusts up to 60 mph expected. * WHERE...Green Mountains and Rattlesnake Range, Natrona County Lower Elevations and East Sweetwater County. * WHEN...From 9 AM to 9 PM MDT Monday. * IMPACTS...Mainly to transportation. Strong winds will enhance the blow over risk for lightweight and high profile vehicles, including campers and tractor trailers. PRECAUTIONARY/PREPAREDNESS ACTIONS... People should avoid being outside in forested areas and around trees and branches. Use caution if you must drive. Do not attempt to burn today. && $$ For more information from the National Weather Service visit https://weather.gov/riw
4 follow-up statements
841 WWUS75 KRIW 250038 NPWRIW URGENT - WEATHER MESSAGE National Weather Service Riverton WY 638 PM MDT Sun Oct 24 2021 WYZ019-020-030-251300- /O.CON.KRIW.HW.W.0015.211025T1500Z-211026T0300Z/ Green Mountains and Rattlesnake Range- Natrona County Lower Elevations-East Sweetwater County- Including the cities of Jeffrey City, Casper, and Wamsutter 638 PM MDT Sun Oct 24 2021 ...HIGH WIND WARNING IN EFFECT FROM 9 AM TO 9 PM MDT MONDAY... * WHAT...Southwest wind 25 to 35 mph with gusts 50 to 60 mph. * WHERE...Green Mountains and Rattlesnake Range, Natrona County Lower Elevations, and East Sweetwater County. * WHEN...From 9 AM to 9 PM MDT Monday. * IMPACTS...Mainly to transportation. Strong winds will enhance the blowover risk for lightweight and high-profile vehicles, including campers and tractor trailers. Impacted roads include Interstate 80, US 287, Wyoming 220, and Wyoming Boulevard along the south side of Casper. PRECAUTIONARY/PREPAREDNESS ACTIONS... Be prepared for sudden crosswinds if you plan to travel through the warned area. Do not attempt any outdoor burning. && $$ For more information from the National Weather Service visit https://weather.gov/riw
880 WWUS75 KRIW 250916 NPWRIW URGENT - WEATHER MESSAGE National Weather Service Riverton WY 316 AM MDT Mon Oct 25 2021 WYZ018-252215- /O.EXA.KRIW.HW.W.0015.211025T1500Z-211026T0300Z/ Lander Foothills- Including the city of Lander 316 AM MDT Mon Oct 25 2021 ...HIGH WIND WARNING IN EFFECT FROM 9 AM THIS MORNING TO 9 PM MDT THIS EVENING... * WHAT...Southwest winds 25 to 35 mph with gusts up to 60 mph expected. * WHERE...Lander Foothills. * WHEN...From 9 AM this morning to 9 PM this evening. The most likely timing for the strongest wind gusts will be occur between 11 AM and 4 PM. * IMPACTS...Mainly to transportation. Strong winds will enhance the blowover risk for lightweight and high-profile vehicles, including campers and tractor trailers. * ADDITIONAL DETAILS...Please keep two hands on the steering wheel in case of sudden, very 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. && $$ WYZ019-020-030-252215- /O.CON.KRIW.HW.W.0015.211025T1500Z-211026T0300Z/ Green Mountains and Rattlesnake Range- Natrona County Lower Elevations-East Sweetwater County- Including the cities of Jeffrey City, Casper, and Wamsutter 316 AM MDT Mon Oct 25 2021 ...HIGH WIND WARNING REMAINS IN EFFECT FROM 9 AM THIS MORNING TO 9 PM MDT THIS EVENING... * WHAT...South to southwest winds 25 to 35 mph with gusts up to 60 mph expected. Locally gusts to 70 mph on the south side of Casper. * WHERE...East Sweetwater County, Green Mountains and Rattlesnake Range and Natrona County Lower Elevations. This includes Interstate 25, and Interstate 80. * WHEN...From 9 AM this morning to 9 PM this evening. * IMPACTS...Mainly to transportation. Strong winds will enhance the blowover risk for lightweight and high-profile vehicles, including campers and tractor trailers. * ADDITIONAL DETAILS...Please keep two hands on the steering wheel in case of sudden, very strong wind gust. PRECAUTIONARY/PREPAREDNESS ACTIONS... Use caution if you must drive. In a parking lot, park into the wind to minimize the possibility of your car door hitting another parked vehicle. && $$ Team Riverton/21
946 WWUS75 KRIW 252043 NPWRIW URGENT - WEATHER MESSAGE National Weather Service Riverton WY 243 PM MDT Mon Oct 25 2021 WYZ019-020-030-260300- /O.CON.KRIW.HW.W.0015.000000T0000Z-211026T0300Z/ Green Mountains and Rattlesnake Range- Natrona County Lower Elevations-East Sweetwater County- Including the cities of Jeffrey City, Casper, and Wamsutter 243 PM MDT Mon Oct 25 2021 ...HIGH WIND WARNING REMAINS IN EFFECT UNTIL 9 PM MDT THIS EVENING... * WHAT...South to southwest winds 25 to 35 mph with gusts up to 60 mph expected. Locally gusts to 60 mph on the south side of Casper. * WHERE...East Sweetwater County, Green Mountains and Rattlesnake Range and Natrona County Lower Elevations. This includes Interstate 25, and Interstate 80. * WHEN...From 9 AM this morning to 9 PM this evening. * IMPACTS...Mainly to transportation. Strong winds will enhance the blowover risk for lightweight and high-profile vehicles, including campers and tractor trailers. * ADDITIONAL DETAILS...Please keep two hands on the steering wheel in case of sudden, very 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. && $$ WYZ018-260300- /O.CON.KRIW.HW.W.0015.000000T0000Z-211026T0300Z/ Lander Foothills- Including the city of Lander 243 PM MDT Mon Oct 25 2021 ...HIGH WIND WARNING REMAINS IN EFFECT UNTIL 9 PM MDT THIS EVENING... * WHAT...Southwest winds 25 to 35 mph with gusts up to 60 mph expected. * WHERE...Lander Foothills. * WHEN...From 9 AM this morning to 9 PM this evening. The most likely timing for the strongest wind gusts will be occur between 11 AM and 4 PM. * IMPACTS...Mainly to transportation. Strong winds will enhance the blowover risk for lightweight and high-profile vehicles, including campers and tractor trailers. * ADDITIONAL DETAILS...Please keep two hands on the steering wheel in case of sudden, very strong wind gust. PRECAUTIONARY/PREPAREDNESS ACTIONS... Use caution if you must drive. In a parking lot, park into the wind to minimize the possibility of your car door hitting another parked vehicle. && $$ For more information from the National Weather Service visit https://weather.gov/riw
456 WWUS75 KRIW 260246 NPWRIW URGENT - WEATHER MESSAGE National Weather Service Riverton WY 846 PM MDT Mon Oct 25 2021 WYZ019-020-030-260400- /O.EXP.KRIW.HW.W.0015.000000T0000Z-211026T0300Z/ Green Mountains and Rattlesnake Range- Natrona County Lower Elevations-East Sweetwater County- Including the cities of Jeffrey City, Casper, and Wamsutter 846 PM MDT Mon Oct 25 2021 ...HIGH WIND WARNING WILL EXPIRE AT 9 PM MDT THIS EVENING... Winds are decreasing therefore the high wind warning will be allowed to expire. $$ WYZ018-260400- /O.EXP.KRIW.HW.W.0015.000000T0000Z-211026T0300Z/ Lander Foothills- Including the city of Lander 846 PM MDT Mon Oct 25 2021 ...HIGH WIND WARNING WILL EXPIRE AT 9 PM MDT THIS EVENING... Winds are decreasing the high wind warning will be allowed to expire. $$ 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 |
|---|---|---|---|---|
| Oct 24, 2:35 PM MDT | Winter Weather Advisory | RIW | Fremont, Lincoln, Sublette, Teton | 45 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.