Alert archive / Wyoming / High Wind Watches in 2021
High Wind Watch 3, NWS Riverton, WY
NWS Riverton, WY issued this high wind watch at Jan 12, 2021, 2:21 AM MST for 7 counties in Wyoming. It took effect at Jan 13, 2021, 5:00 AM MST. It was in force for .
The area
The counties it named.
The facts
- Issued
- Jan 12, 2021, 2:21 AM MST (09:21 UTC)
- In effect from
- Jan 13, 2021, 5:00 AM MST
- Expired
- Jan 13, 2021, 2:50 AM MST
- In force
- 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, Sweetwater County, WY
The radar
The Riverton/Lander radar (KRIW), 55 km from the middle of the area, began a volume at 09:21 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, 9.4 hours before the alert went out and 52 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
- 1936 m above ground
- 0-6 km bulk shear
- 7 kt
- 0-1 km storm-relative helicity
- 0 m²/s²
- 0-3 km storm-relative helicity
- -32 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
421 WWUS75 KRIW 120921 NPWRIW URGENT - WEATHER MESSAGE National Weather Service Riverton WY 221 AM MST Tue Jan 12 2021 WYZ016-017-130000- /O.NEW.KRIW.HW.A.0003.210113T1800Z-210114T0600Z/ Upper Wind River Basin-Wind River Basin- Including the cities of Dubois, Riverton, and Shoshoni 221 AM MST Tue Jan 12 2021 ...HIGH WIND WATCH IN EFFECT FROM WEDNESDAY MORNING THROUGH WEDNESDAY EVENING... * WHAT...Northwest winds 30 to 40 mph with gusts 50 to 60 mph possible. * WHERE...Upper Wind River Basin and Wind River Basin. * WHEN...From Wednesday morning through Wednesday evening. * IMPACTS...Travel could be difficult, especially for high profile vehicles. PRECAUTIONARY/PREPAREDNESS ACTIONS... Monitor the latest forecasts and warnings for updates on this situation. Fasten loose objects or shelter objects in a safe location prior to the onset of winds. && $$ WYZ019-020-130000- /O.NEW.KRIW.HW.A.0003.210113T1800Z-210114T0600Z/ Green Mountains and Rattlesnake Range- Natrona County Lower Elevations- Including the cities of Jeffrey City and Casper 221 AM MST Tue Jan 12 2021 ...HIGH WIND WATCH IN EFFECT FROM WEDNESDAY MORNING THROUGH WEDNESDAY EVENING... * WHAT...West winds 35 to 45 mph with gusts 55 to 65 mph possible. * WHERE...Green Mountains and Rattlesnake Range and Natrona County Lower Elevations. * WHEN...From Wednesday morning through Wednesday evening. * IMPACTS...Travel could be difficult, especially for high profile vehicles. PRECAUTIONARY/PREPAREDNESS ACTIONS... Monitor the latest forecasts and warnings for updates on this situation. Fasten loose objects or shelter objects in a safe location prior to the onset of winds. && $$ WYZ004-130000- /O.NEW.KRIW.HW.A.0003.210113T2200Z-210114T0600Z/ North Big Horn Basin- Including the cities of Basin, Greybull, Lovell, Powell, and Shell 221 AM MST Tue Jan 12 2021 ...HIGH WIND WATCH IN EFFECT FROM WEDNESDAY AFTERNOON THROUGH WEDNESDAY EVENING... * WHAT...Northwest winds 30 to 40 mph with gusts 50 to 60 mph possible. * WHERE...North Big Horn Basin. * WHEN...From Wednesday afternoon through Wednesday evening. * IMPACTS...Travel could be difficult, especially for high profile vehicles. PRECAUTIONARY/PREPAREDNESS ACTIONS... Monitor the latest forecasts and warnings for updates on this situation. Fasten loose objects or shelter objects in a safe location prior to the onset of winds. && $$ WYZ010-011-130000- /O.NEW.KRIW.HW.A.0003.210114T0000Z-210114T1800Z/ Northeast Johnson County-Southeast Johnson County- Including the cities of Buffalo and Kaycee 221 AM MST Tue Jan 12 2021 ...HIGH WIND WATCH IN EFFECT FROM WEDNESDAY AFTERNOON THROUGH THURSDAY MORNING... * WHAT...Northwest winds 35 to 45 mph with gusts 60 to 70 mph possible. * WHERE...Northeast Johnson County and Southeast Johnson County. * WHEN...From Wednesday afternoon through Thursday morning. * IMPACTS...Travel could be difficult, especially for high profile vehicles. PRECAUTIONARY/PREPAREDNESS ACTIONS... Monitor the latest forecasts and warnings for updates on this situation. Fasten loose objects or shelter objects in a safe location prior to the onset of winds. && $$ For more information from the National Weather Service visit https://weather.gov/riw
2 follow-up statements
513 WWUS75 KRIW 121945 NPWRIW URGENT - WEATHER MESSAGE National Weather Service Riverton WY 1245 PM MST Tue Jan 12 2021 WYZ002-003-131200- /O.EXB.KRIW.HW.A.0003.210113T1200Z-210114T0600Z/ Absaroka Mountains-Cody Foothills- Including the cities of Clark, Cody, and Meeteetse 1245 PM MST Tue Jan 12 2021 ...HIGH WIND WATCH IN EFFECT FROM EARLY WEDNESDAY MORNING THROUGH LATE WEDNESDAY EVENING... * WHAT...Southwest to west winds 30 to 40 mph with gusts up to 65 mph possible. Winds will shift to the northwest early Wednesday evening. * WHERE...Absaroka Mountains and Cody Foothills. * WHEN...From early Wednesday morning through late Wednesday evening. * IMPACTS...Travel could be difficult, especially for high profile vehicles. * ADDITIONAL DETAILS...A cold front will push through the area late Wednesday afternoon, shifting the winds to the northwest and bring some snow showers as well. PRECAUTIONARY/PREPAREDNESS ACTIONS... Monitor the latest forecasts and warnings for updates on this situation. Fasten loose objects or shelter objects in a safe location prior to the onset of winds. && $$ WYZ019-020-131200- /O.EXT.KRIW.HW.A.0003.210113T1200Z-210114T0600Z/ Green Mountains and Rattlesnake Range- Natrona County Lower Elevations- Including the cities of Jeffrey City and Casper 1245 PM MST Tue Jan 12 2021 ...HIGH WIND WATCH NOW IN EFFECT FROM EARLY WEDNESDAY MORNING THROUGH LATE WEDNESDAY EVENING... * WHAT...West winds 35 to 45 mph with gusts 55 to 65 mph possible. * WHERE...Green Mountains and Rattlesnake Range and Natrona County Lower Elevations. * WHEN...From early Wednesday morning through late Wednesday evening. * IMPACTS...Travel could be difficult, especially for high profile vehicles. * ADDITIONAL DETAILS...Winds are likely to shift to the north late Wednesday evening and bring some accumulating snow showers to Natrona County. PRECAUTIONARY/PREPAREDNESS ACTIONS... Monitor the latest forecasts and warnings for updates on this situation. Fasten loose objects or shelter objects in a safe location prior to the onset of winds. && $$ WYZ016-017-131200- /O.CON.KRIW.HW.A.0003.210113T1800Z-210114T0600Z/ Upper Wind River Basin-Wind River Basin- Including the cities of Dubois, Riverton, and Shoshoni 1245 PM MST Tue Jan 12 2021 ...HIGH WIND WATCH REMAINS IN EFFECT FROM LATE WEDNESDAY MORNING THROUGH LATE WEDNESDAY EVENING... * WHAT...Northwest winds 30 to 40 mph with gusts 50 to 60 mph possible. * WHERE...Upper Wind River Basin and Wind River Basin. * WHEN...From late Wednesday morning through late Wednesday evening. * IMPACTS...Travel could be difficult, especially for high profile vehicles. * ADDITIONAL DETAILS...Snow showers are also possible over the Dubois area. PRECAUTIONARY/PREPAREDNESS ACTIONS... Monitor the latest forecasts and warnings for updates on this situation. Fasten loose objects or shelter objects in a safe location prior to the onset of winds. && $$ WYZ004-131200- /O.CON.KRIW.HW.A.0003.210113T2200Z-210114T0600Z/ North Big Horn Basin- Including the cities of Basin, Greybull, Lovell, Powell, and Shell 1245 PM MST Tue Jan 12 2021 ...HIGH WIND WATCH REMAINS IN EFFECT FROM WEDNESDAY AFTERNOON THROUGH LATE WEDNESDAY EVENING... * WHAT...Northwest winds 30 to 40 mph with gusts 50 to 60 mph possible. * WHERE...North Big Horn Basin. * WHEN...From Wednesday afternoon through late Wednesday evening. * IMPACTS...Travel could be difficult, especially for high profile vehicles. * ADDITIONAL DETAILS...Snow showers are also likely Wednesday evening, especially near the mountains. PRECAUTIONARY/PREPAREDNESS ACTIONS... Monitor the latest forecasts and warnings for updates on this situation. Fasten loose objects or shelter objects in a safe location prior to the onset of winds. && $$ WYZ010-011-131200- /O.CON.KRIW.HW.A.0003.210114T0000Z-210114T1800Z/ Northeast Johnson County-Southeast Johnson County- Including the cities of Buffalo and Kaycee 1245 PM MST Tue Jan 12 2021 ...HIGH WIND WATCH REMAINS IN EFFECT FROM LATE WEDNESDAY AFTERNOON THROUGH THURSDAY MORNING... * WHAT...Northwest winds 35 to 45 mph with gusts 60 to 70 mph possible. * WHERE...Northeast Johnson County and Southeast Johnson County. * WHEN...From Wednesday afternoon through Thursday morning. * IMPACTS...Travel could be difficult, especially for high profile vehicles. * ADDITIONAL DETAILS...The cold front will also bring some snow to the area to create hazardous travel conditions with slick roads and poor visibility. PRECAUTIONARY/PREPAREDNESS ACTIONS... Monitor the latest forecasts and warnings for updates on this situation. Fasten loose objects or shelter objects in a safe location prior to the onset of winds. && $$ For more information from the National Weather Service visit https://weather.gov/riw
670 WWUS75 KRIW 130950 NPWRIW URGENT - WEATHER MESSAGE National Weather Service Riverton WY 250 AM MST Wed Jan 13 2021 WYZ019-020-140600- /O.UPG.KRIW.HW.A.0003.210113T1200Z-210114T0600Z/ /O.NEW.KRIW.HW.W.0003.210113T0950Z-210114T0600Z/ Green Mountains and Rattlesnake Range- Natrona County Lower Elevations- Including the cities of Jeffrey City and Casper 250 AM MST Wed Jan 13 2021 ...HIGH WIND WARNING IN EFFECT UNTIL 11 PM MST THIS EVENING... * WHAT...West winds 35 to 45 mph with gusts 55 to 65 mph. * WHERE...Green Mountains and Rattlesnake Range and Natrona County Lower Elevations. * WHEN...Until 11 PM MST this evening. * IMPACTS...Mainly to transportation. Enhanced blow over risk for light and high profile vehicles including along Interstate 25. * ADDITIONAL DETAILS...Winds are likely to shift to the north late Wednesday evening and could bring some brief snow showers to Natrona County. PRECAUTIONARY/PREPAREDNESS ACTIONS... People should avoid being outside in forested areas and around trees and branches. Use caution if you must drive. && $$ WYZ016-017-140600- /O.UPG.KRIW.HW.A.0003.210113T1800Z-210114T0600Z/ /O.NEW.KRIW.HW.W.0003.210113T1800Z-210114T0900Z/ Upper Wind River Basin-Wind River Basin- Including the cities of Dubois, Riverton, and Shoshoni 250 AM MST Wed Jan 13 2021 ...HIGH WIND WARNING IN EFFECT FROM 11 AM THIS MORNING TO 2 AM MST THURSDAY... * WHAT...West winds 30 to 40 mph with gusts 50 to 60 mph. * WHERE...Upper Wind River Basin and Wind River Basin. * WHEN...From 11 AM this morning to 2 AM MST Thursday. * IMPACTS...Travel will be difficult, especially for high profile vehicles. * ADDITIONAL DETAILS...Snow showers are also possible over the Dubois area. PRECAUTIONARY/PREPAREDNESS ACTIONS... People should avoid being outside in forested areas and around trees and branches. Use caution if you must drive. && $$ WYZ004-140600- /O.UPG.KRIW.HW.A.0003.210113T2200Z-210114T0600Z/ /O.NEW.KRIW.HW.W.0003.210113T2200Z-210114T0600Z/ North Big Horn Basin- Including the cities of Basin, Greybull, Lovell, Powell, and Shell 250 AM MST Wed Jan 13 2021 ...HIGH WIND WARNING IN EFFECT FROM 3 PM THIS AFTERNOON TO 11 PM MST THIS EVENING... * WHAT...Northwest winds 30 to 40 mph with gusts 50 to 60 mph. * WHERE...North Big Horn Basin. * WHEN...From 3 PM this afternoon to 11 PM MST this evening. * IMPACTS...Travel will be difficult, especially for light and high profile vehicles. * ADDITIONAL DETAILS...Snow showers are also possible Wednesday evening, especially near the mountains.. PRECAUTIONARY/PREPAREDNESS ACTIONS... People should avoid being outside in forested areas and around trees and branches. Use caution if you must drive. && $$ WYZ011-140600- /O.UPG.KRIW.HW.A.0003.210114T0000Z-210114T1800Z/ /O.NEW.KRIW.HW.W.0003.210113T2200Z-210114T0600Z/ Southeast Johnson County- Including the city of Kaycee 250 AM MST Wed Jan 13 2021 ...HIGH WIND WARNING IN EFFECT FROM 3 PM THIS AFTERNOON TO 11 PM MST THIS EVENING... * WHAT...Northwest winds 30 to 40 mph with gusts 50 to 60 mph. * WHERE...Southeast Johnson County. * WHEN...From 3 PM this afternoon to 11 PM MST this evening. * IMPACTS...Mainly to transportation. Enhanced blow over risk for light and high profile vehicles including along Interstate 25. * ADDITIONAL DETAILS...The cold front will also bring some snow to the area to create hazardous travel conditions with slick roads and poor visibility. PRECAUTIONARY/PREPAREDNESS ACTIONS... People should avoid being outside in forested areas and around trees and branches. Use caution if you must drive. && $$ WYZ002-003-140600- /O.UPG.KRIW.HW.A.0003.210113T1200Z-210114T0600Z/ /O.NEW.KRIW.HW.W.0003.210113T0950Z-210114T0600Z/ Absaroka Mountains-Cody Foothills- Including the cities of Clark, Cody, and Meeteetse 250 AM MST Wed Jan 13 2021 ...HIGH WIND WARNING IN EFFECT UNTIL 11 PM MST THIS EVENING... * WHAT...West winds 35 to 45 mph with gusts 55 to 65 mph. * WHERE...Absaroka Mountains and Cody Foothills. * WHEN...Until 11 PM MST this evening. * IMPACTS...Travel will be difficult, especially for light and high profile vehicles. * ADDITIONAL DETAILS...A cold front will push through the area late Wednesday afternoon, shifting the winds to the northwest and bring some snow showers as well. PRECAUTIONARY/PREPAREDNESS ACTIONS... People should avoid being outside in forested areas and around trees and branches. Use caution if you must drive. && $$ WYZ010-140600- /O.UPG.KRIW.HW.A.0003.210114T0000Z-210114T1800Z/ /O.NEW.KRIW.HW.W.0003.210113T2200Z-210115T0000Z/ Northeast Johnson County- Including the city of Buffalo 250 AM MST Wed Jan 13 2021 ...HIGH WIND WARNING IN EFFECT FROM 3 PM THIS AFTERNOON TO 5 PM MST THURSDAY... * WHAT...Northwest winds 35 to 45 mph with gusts 60 to 70 mph. * WHERE...Northeast Johnson County. * WHEN...From 3 PM this afternoon to 5 PM MST Thursday. * IMPACTS...Mainly to transportation. Enhanced blow over risk for light and high profile vehicles including along Interstates 25 and 90. * ADDITIONAL DETAILS...The cold front will also bring some snow to the area to create hazardous travel conditions with slick roads and poor visibility Wednesday evening. 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
The office that day
Everything else NWS Riverton, WY issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jan 12, 2:30 AM MST | Winter Weather Advisory | RIW | Fremont, Lincoln, Sublette, Teton | 45 hr |
Nearby
High Wind Watches in Wyoming, 2021Every high wind watch 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.