Alert archive / Wyoming / High Wind Warnings in 2021
High Wind Warning 5, NWS Riverton, WY
NWS Riverton, WY issued this high wind warning at Jan 27, 2021, 6:32 PM MST for Natrona County, Wyoming. It was in force for 22 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
- Jan 27, 2021, 6:32 PM MST (01:32 UTC)
- Expired
- Jan 28, 2021, 4:14 PM MST
- In force
- 22 hr
- Issued by
- NWS Riverton, WY
County Natrona County, WY
The radar
The Riverton/Lander radar (KRIW), 137 km from the middle of the area, began a volume at 01:30 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, 1.5 hours before the alert went out and 131 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
- 1924 m above ground
- 0-6 km bulk shear
- 57 kt
- 0-1 km storm-relative helicity
- 32 m²/s²
- 0-3 km storm-relative helicity
- 86 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
794 WWUS75 KRIW 280132 NPWRIW URGENT - WEATHER MESSAGE National Weather Service Riverton WY 632 PM MST Wed Jan 27 2021 WYZ020-281300- /O.NEW.KRIW.HW.W.0005.210128T0132Z-210129T0100Z/ Natrona County Lower Elevations- Including the city of Casper 632 PM MST Wed Jan 27 2021 ...HIGH WIND WARNING IN EFFECT UNTIL 6 PM MST THURSDAY... * WHAT...Southwest winds 30 to 40 mph with gusts 60 to 70 mph. * WHERE...Natrona County Lower Elevations. * WHEN...Until 6 PM MST Thursday. * IMPACTS...Travel will be difficult, especially for light and high profile vehicles. PRECAUTIONARY/PREPAREDNESS ACTIONS... People should avoid being outside in forested areas and around trees and branches. Use caution if you must drive. && $$ For more information from the National Weather Service visit https://weather.gov/riw
4 follow-up statements
420 WWUS75 KRIW 280139 NPWRIW URGENT - WEATHER MESSAGE National Weather Service Riverton WY 639 PM MST Wed Jan 27 2021 WYZ020-281300- /O.CON.KRIW.HW.W.0005.000000T0000Z-210129T0100Z/ Natrona County Lower Elevations- Including the city of Casper 639 PM MST Wed Jan 27 2021 ...HIGH WIND WARNING REMAINS IN EFFECT UNTIL 6 PM MST THURSDAY... * WHAT...Southwest winds 30 to 40 mph with gusts 60 to 70 mph. * WHERE...Natrona County Lower Elevations. * WHEN...Until 6 PM MST Thursday. * IMPACTS...Travel will be difficult, especially for light and high profile vehicles. Blowing snow may create slick roadways and reduced visibility, mainly overnight tonight. PRECAUTIONARY/PREPAREDNESS ACTIONS... People should avoid being outside in forested areas and around trees and branches. Use caution if you must drive. && $$ For more information from the National Weather Service visit https://weather.gov/riw
770 WWUS75 KRIW 281248 NPWRIW URGENT - WEATHER MESSAGE National Weather Service Riverton WY 548 AM MST Thu Jan 28 2021 WYZ020-282200- /O.CON.KRIW.HW.W.0005.000000T0000Z-210129T0100Z/ Natrona County Lower Elevations- Including the city of Casper 548 AM MST Thu Jan 28 2021 ...HIGH WIND WARNING REMAINS IN EFFECT UNTIL 6 PM MST THIS EVENING... * WHAT...Southwest winds 30 to 40 mph with gusts 50 to 60 mph. Localized gusts on the south side of Casper up to 65 mph. * WHERE...Natrona County Lower Elevations. * WHEN...Until 6 PM MST this evening. * IMPACTS...Travel will be difficult, especially for light and high profile vehicles. Blowing snow may create slick roadways and reduced visibility. PRECAUTIONARY/PREPAREDNESS ACTIONS... People should avoid being outside in forested areas and around trees and branches. Use caution if you must drive. && $$ For more information from the National Weather Service visit https://weather.gov/riw
693 WWUS75 KRIW 282151 NPWRIW URGENT - WEATHER MESSAGE National Weather Service Riverton WY 251 PM MST Thu Jan 28 2021 WYZ020-290100- /O.CON.KRIW.HW.W.0005.000000T0000Z-210129T0100Z/ Natrona County Lower Elevations- Including the city of Casper 251 PM MST Thu Jan 28 2021 ...HIGH WIND WARNING REMAINS IN EFFECT UNTIL 6 PM MST THIS EVENING... * WHAT...Southwest winds 30 to 40 mph with gusts up to 60 mph. * WHERE...Natrona County Lower Elevations. * WHEN...Until 6 PM MST this evening. * IMPACTS...Travel will be difficult, especially for light and high profile vehicles. Blowing snow may create slick roadways and reduced visibility. PRECAUTIONARY/PREPAREDNESS ACTIONS... People should avoid being outside in forested areas and around trees and branches. If possible, remain in the lower levels of your home during the windstorm, and avoid windows. Use caution if you must drive. && $$ For more information from the National Weather Service visit https://weather.gov/riw
767 WWUS75 KRIW 282314 NPWRIW URGENT - WEATHER MESSAGE National Weather Service Riverton WY 414 PM MST Thu Jan 28 2021 WYZ020-290015- /O.CAN.KRIW.HW.W.0005.000000T0000Z-210129T0100Z/ Natrona County Lower Elevations- Including the city of Casper 414 PM MST Thu Jan 28 2021 ...HIGH WIND WARNING IS CANCELLED... Winds have diminished across the area prompting the cancellation of the High Wind Warning. Gusty winds will likely continue through the rest of the evening, but gusts are not expected to meet or exceed warning criteria. $$ 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.