Alert archive / Wyoming / High Wind Warnings in 2020
High Wind Warning 16, NWS Riverton, WY
NWS Riverton, WY issued this high wind warning at Oct 13, 2020, 1:20 PM MDT for 8 counties in Wyoming. It took effect at Oct 13, 2020, 6:00 PM MDT. It was in force for 25 hr. 2 reports came from inside the area while it was in force.
The area
The counties it named, with what was reported inside it.
The facts
- Issued
- Oct 13, 2020, 1:20 PM MDT (19:20 UTC)
- In effect from
- Oct 13, 2020, 6:00 PM MDT
- Expired
- Oct 14, 2020, 7:00 PM MDT
- In force
- 25 hr
- Issued by
- NWS Riverton, WY
Counties Fremont County, WY, Hot Springs County, WY, Johnson County, WY, Lincoln County, WY, Natrona County, WY, Park County, WY, Sublette County, WY, Sweetwater County, WY
The radar
The Riverton/Lander radar (KRIW), 18 km from the middle of the area, began a volume at 19:24 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.
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| Oct 14, 9:34 AM MDT | NON-TSTM WND GST 59 | 2 N Marbleton, WY | ASOS STATION KBPI BIG PINEY AIRPORT. |
| Oct 14, 1:12 PM MDT | NON-TSTM WND GST 59 | 5 Nw Riverton, WY | ASOS STATION KRIW RIVERTON AIRPORT. |
Local storm reports filed while the alert was in force, from inside its polygon or its counties.
The nearest sounding before it
Riverton, WY (KRIW), launched 12:00Z, 7.3 hours before the alert went out and 24 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
- 2305 m above ground
- 0-6 km bulk shear
- 69 kt
- 0-1 km storm-relative helicity
- 76 m²/s²
- 0-3 km storm-relative helicity
- 194 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
770 WWUS75 KRIW 131920 NPWRIW URGENT - WEATHER MESSAGE National Weather Service Riverton WY 120 PM MDT Tue Oct 13 2020 WYZ002-003-014-015-141200- /O.UPG.KRIW.HW.A.0009.201014T0000Z-201014T1500Z/ /O.NEW.KRIW.HW.W.0016.201014T0000Z-201014T1500Z/ Absaroka Mountains-Cody Foothills-Wind River Mountains West- Wind River Mountains East- Including the cities of Clark, Cody, and Meeteetse 120 PM MDT Tue Oct 13 2020 ...HIGH WIND WARNING IN EFFECT FROM 6 PM THIS EVENING TO 9 AM MDT WEDNESDAY... * WHAT...West winds 40 to 50 mph with gusts up to 75 mph expected in the mountains, and 30 to 40 mph with gusts up to 65 mph in the Cody Foothills expected. * WHERE...Absaroka Mountains, Cody Foothills, Wind River Mountains West, and Wind River Mountains East. * WHEN...From 6 PM this evening to 9 AM MDT Wednesday. * IMPACTS...Damaging winds will blow down trees and power lines. Widespread power outages are possible. Travel will be difficult, especially for high profile vehicles. * ADDITIONAL DETAILS...The strongest winds are likely from about 9 PM Tuesday through 6 AM Wednesday. 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. && $$ WYZ010-141200- /O.UPG.KRIW.HW.A.0009.201014T1200Z-201015T0100Z/ /O.NEW.KRIW.HW.W.0016.201014T1200Z-201015T0100Z/ Northeast Johnson County- Including the city of Buffalo 120 PM MDT Tue Oct 13 2020 ...HIGH WIND WARNING IN EFFECT FROM 6 AM TO 7 PM MDT WEDNESDAY... * WHAT...Northwest winds 35 to 45 mph with gusts up to 65 mph expected. * WHERE...Northeast Johnson County. * WHEN...From 6 AM to 7 PM MDT Wednesday. * IMPACTS...Damaging winds will blow down trees and power lines. Widespread power outages are possible. Travel will be difficult, especially for high profile vehicles. PRECAUTIONARY/PREPAREDNESS ACTIONS... People should avoid being outside in forested areas and around trees and branches. If possible, remain in the lower levels of your home during the windstorm, and avoid windows. Use caution if you must drive. && $$ WYZ018-141200- /O.UPG.KRIW.HW.A.0009.201014T0000Z-201014T1500Z/ /O.NEW.KRIW.HW.W.0016.201014T0000Z-201014T1500Z/ Lander Foothills- Including the city of Lander 120 PM MDT Tue Oct 13 2020 ...HIGH WIND WARNING IN EFFECT FROM 6 PM THIS EVENING TO 9 AM MDT WEDNESDAY... * WHAT...West winds 25 to 35 mph with gusts up to 60 mph expected. * WHERE...Lander Foothills. * WHEN...From 6 PM this evening to 9 AM MDT Wednesday. * IMPACTS...Damaging winds will blow down trees and power lines. Widespread power outages are possible. Travel will be difficult, especially for high profile vehicles. * ADDITIONAL DETAILS...Strong northwest winds are also possible from 9 AM to 6 PM Wednesday. 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. && $$ WYZ019-020-027>030-141200- /O.UPG.KRIW.HW.A.0009.201014T1500Z-201015T0100Z/ /O.NEW.KRIW.HW.W.0016.201014T1500Z-201015T0100Z/ Green Mountains and Rattlesnake Range- Natrona County Lower Elevations-South Lincoln County- Rock Springs and Green River-Flaming Gorge-East Sweetwater County- Including the cities of Jeffrey City, Casper, Kemmerer, Cokeville, Rock Springs, Green River, and Wamsutter 120 PM MDT Tue Oct 13 2020 ...HIGH WIND WARNING IN EFFECT FROM 9 AM TO 7 PM MDT WEDNESDAY... * WHAT...West winds 25 to 40 mph with gusts up to 60 mph expected. * WHERE...Green Mountains and Rattlesnake Range, Natrona County Lower Elevations, South Lincoln County, Rock Springs and Green River, Flaming Gorge, and East Sweetwater County. * WHEN...From 9 AM to 7 PM MDT Wednesday. * IMPACTS...Damaging winds will blow down trees and power lines. Widespread power outages are possible. Travel will be difficult, especially for high profile vehicles. PRECAUTIONARY/PREPAREDNESS ACTIONS... People should avoid being outside in forested areas and around trees and branches. If possible, remain in the lower levels of your home during the windstorm, and avoid windows. Use caution if you must drive. && $$ WYZ016-141200- /O.UPG.KRIW.HW.A.0009.201014T0000Z-201015T0100Z/ /O.NEW.KRIW.HW.W.0016.201014T0000Z-201015T0100Z/ Upper Wind River Basin- Including the city of Dubois 120 PM MDT Tue Oct 13 2020 ...HIGH WIND WARNING IN EFFECT FROM 6 PM THIS EVENING TO 7 PM MDT WEDNESDAY... * WHAT...West winds 30 to 40 mph with gusts up to 60 mph expected. * WHERE...Upper Wind River Basin. * WHEN...From 6 PM this evening to 7 PM MDT Wednesday. * IMPACTS...Damaging winds will blow down trees and power lines. Widespread power outages are possible. Travel will 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. && $$ WYZ017-141200- /O.NEW.KRIW.HW.W.0016.201014T1500Z-201015T0100Z/ Wind River Basin- Including the cities of Riverton and Shoshoni 120 PM MDT Tue Oct 13 2020 ...HIGH WIND WARNING IN EFFECT FROM 9 AM TO 7 PM MDT WEDNESDAY... * WHAT...Northwest winds 25 to 40 mph with gusts up to 60 mph expected. * WHERE...Wind River Basin. * WHEN...From 9 AM to 7 PM MDT Wednesday. * IMPACTS...Damaging winds will blow down trees and power lines. Widespread power outages are possible. Travel will be difficult, especially for high profile vehicles. PRECAUTIONARY/PREPAREDNESS ACTIONS... People should avoid being outside in forested areas and around trees and branches. If possible, remain in the lower levels of your home during the windstorm, and avoid windows. Use caution if you must drive. && $$ For more information from the National Weather Service visit https://weather.gov/riw
6 follow-up statements
480 WWUS75 KRIW 140256 NPWRIW URGENT - WEATHER MESSAGE National Weather Service Riverton WY 856 PM MDT Tue Oct 13 2020 WYZ002-003-014-015-141200- /O.CON.KRIW.HW.W.0016.000000T0000Z-201014T1500Z/ Absaroka Mountains-Cody Foothills-Wind River Mountains West- Wind River Mountains East- Including the cities of Clark, Cody, and Meeteetse 856 PM MDT Tue Oct 13 2020 ...HIGH WIND WARNING REMAINS IN EFFECT UNTIL 9 AM MDT WEDNESDAY... * WHAT...West winds 40 to 50 mph with gusts up to 75 mph expected in the mountains, and 30 to 40 mph with gusts up to 65 mph in the Cody Foothills expected. * WHERE...Absaroka Mountains, Cody Foothills, Wind River Mountains West, and Wind River Mountains East. * WHEN...Until 9 AM MDT Wednesday. * IMPACTS...Damaging winds will blow down trees and power lines. Widespread power outages are possible. Travel will be difficult, especially for high profile vehicles. * ADDITIONAL DETAILS...The strongest winds are likely from about 9 PM Tuesday through 6 AM Wednesday. 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. && $$ WYZ010-141200- /O.CON.KRIW.HW.W.0016.201014T1200Z-201015T0100Z/ Northeast Johnson County- Including the city of Buffalo 856 PM MDT Tue Oct 13 2020 ...HIGH WIND WARNING REMAINS IN EFFECT FROM 6 AM TO 7 PM MDT WEDNESDAY... * WHAT...Northwest winds 35 to 45 mph with gusts up to 65 mph expected. * WHERE...Northeast Johnson County. * WHEN...From 6 AM to 7 PM MDT Wednesday. * IMPACTS...Damaging winds will blow down trees and power lines. Widespread power outages are possible. Travel will be difficult, especially for high profile vehicles. PRECAUTIONARY/PREPAREDNESS ACTIONS... People should avoid being outside in forested areas and around trees and branches. If possible, remain in the lower levels of your home during the windstorm, and avoid windows. Use caution if you must drive. && $$ WYZ018-141200- /O.CON.KRIW.HW.W.0016.000000T0000Z-201014T1500Z/ Lander Foothills- Including the city of Lander 856 PM MDT Tue Oct 13 2020 ...HIGH WIND WARNING REMAINS IN EFFECT UNTIL 9 AM MDT WEDNESDAY... * WHAT...West winds 25 to 35 mph with gusts up to 60 mph expected. * WHERE...Lander Foothills. * WHEN...Until 9 AM MDT Wednesday. * IMPACTS...Damaging winds will blow down trees and power lines. Widespread power outages are possible. Travel will be difficult, especially for high profile vehicles. * ADDITIONAL DETAILS...Strong northwest winds are also possible from 9 AM to 6 PM Wednesday. 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. && $$ WYZ017-019-020-027>030-141200- /O.CON.KRIW.HW.W.0016.201014T1500Z-201015T0100Z/ Wind River Basin-Green Mountains and Rattlesnake Range- Natrona County Lower Elevations-South Lincoln County- Rock Springs and Green River-Flaming Gorge-East Sweetwater County- Including the cities of Riverton, Shoshoni, Jeffrey City, Casper, Kemmerer, Cokeville, Rock Springs, Green River, and Wamsutter 856 PM MDT Tue Oct 13 2020 ...HIGH WIND WARNING REMAINS IN EFFECT FROM 9 AM TO 7 PM MDT WEDNESDAY... * WHAT...West winds 25 to 40 mph with gusts up to 60 mph expected. * WHERE...Green Mountains and Rattlesnake Range, Natrona County Lower Elevations, South Lincoln County, Rock Springs and Green River, Flaming Gorge, and East Sweetwater County. * WHEN...From 9 AM to 7 PM MDT Wednesday. * IMPACTS...Damaging winds will blow down trees and power lines. Widespread power outages are possible. Travel will be difficult, especially for high profile vehicles. PRECAUTIONARY/PREPAREDNESS ACTIONS... People should avoid being outside in forested areas and around trees and branches. If possible, remain in the lower levels of your home during the windstorm, and avoid windows. Use caution if you must drive. && $$ WYZ016-141200- /O.CON.KRIW.HW.W.0016.000000T0000Z-201015T0100Z/ Upper Wind River Basin- Including the city of Dubois 856 PM MDT Tue Oct 13 2020 ...HIGH WIND WARNING REMAINS IN EFFECT UNTIL 7 PM MDT WEDNESDAY... * WHAT...West winds 30 to 40 mph with gusts up to 60 mph expected. * WHERE...Upper Wind River Basin. * WHEN...Until 7 PM MDT Wednesday. * IMPACTS...Damaging winds will blow down trees and power lines. Widespread power outages are possible. Travel will 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. && $$ For more information from the National Weather Service visit https://weather.gov/riw
134 WWUS75 KRIW 140809 NPWRIW URGENT - WEATHER MESSAGE National Weather Service Riverton WY 209 AM MDT Wed Oct 14 2020 WYZ025-026-141615- /O.EXA.KRIW.HW.W.0016.201014T1500Z-201015T0100Z/ Upper Green River Basin Foothills-Upper Green River Basin- Including the cities of Pinedale, La Barge, Big Piney, and Farson 209 AM MDT Wed Oct 14 2020 ...HIGH WIND WARNING IN EFFECT FROM 9 AM THIS MORNING TO 7 PM MDT THIS EVENING... * WHAT...Northwest winds 30 to 40 mph with gusts up to 60 mph expected. * WHERE...Upper Green River Basin Foothills and Upper Green River Basin. * WHEN...From 9 AM to 7 PM MDT Wednesday. * IMPACTS...Damaging winds will blow down trees and power lines. Widespread power outages are possible. Travel will be difficult, especially for high profile vehicles. * ADDITIONAL DETAILS... PRECAUTIONARY/PREPAREDNESS ACTIONS... People should avoid being outside in forested areas and around trees and branches. If possible, remain in the lower levels of your home during the windstorm, and avoid windows. Use caution if you must drive. && $$ WYZ002-003-014-015-141500- /O.CON.KRIW.HW.W.0016.000000T0000Z-201014T1500Z/ Absaroka Mountains-Cody Foothills-Wind River Mountains West- Wind River Mountains East- Including the cities of Clark, Cody, and Meeteetse 209 AM MDT Wed Oct 14 2020 ...HIGH WIND WARNING REMAINS IN EFFECT UNTIL 9 AM MDT THIS MORNING... * WHAT...West winds 40 to 50 mph with gusts up to 75 mph expected in the mountains, and 30 to 40 mph with gusts up to 65 mph in the Cody Foothills expected. * WHERE...Absaroka Mountains, Cody Foothills, Wind River Mountains West, and Wind River Mountains East. * WHEN...Until 9 AM MDT Wednesday. * IMPACTS...Damaging winds may blow down trees and power lines. Travel will 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. && $$ WYZ010-141615- /O.CON.KRIW.HW.W.0016.201014T1200Z-201015T0100Z/ Northeast Johnson County- Including the city of Buffalo 209 AM MDT Wed Oct 14 2020 ...HIGH WIND WARNING REMAINS IN EFFECT FROM 6 AM THIS MORNING TO 7 PM MDT THIS EVENING... * WHAT...Northwest winds 35 to 45 mph with gusts up to 65 mph expected. * WHERE...Northeast Johnson County. * WHEN...From 6 AM to 7 PM MDT Wednesday. * IMPACTS...Damaging winds may blow down trees and power lines. Travel will be difficult, especially for high profile vehicles. PRECAUTIONARY/PREPAREDNESS ACTIONS... People should avoid being outside in forested areas and around trees and branches. If possible, remain in the lower levels of your home during the windstorm, and avoid windows. Use caution if you must drive. && $$ WYZ017-019-020-027>030-141615- /O.CON.KRIW.HW.W.0016.201014T1500Z-201015T0100Z/ Wind River Basin-Green Mountains and Rattlesnake Range- Natrona County Lower Elevations-South Lincoln County- Rock Springs and Green River-Flaming Gorge-East Sweetwater County- Including the cities of Riverton, Shoshoni, Jeffrey City, Casper, Kemmerer, Cokeville, Rock Springs, Green River, and Wamsutter 209 AM MDT Wed Oct 14 2020 ...HIGH WIND WARNING REMAINS IN EFFECT FROM 9 AM THIS MORNING TO 7 PM MDT THIS EVENING... * WHAT...West winds 25 to 40 mph with gusts up to 65 mph expected. * WHERE...Green Mountains and Rattlesnake Range, Natrona County Lower Elevations, South Lincoln County, Rock Springs and Green River, Flaming Gorge, and East Sweetwater County. * WHEN...From 9 AM to 7 PM MDT Wednesday. * IMPACTS...Damaging winds may blow down trees and power lines. Travel will 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. && $$ WYZ018-141500- /O.CON.KRIW.HW.W.0016.000000T0000Z-201014T1500Z/ Lander Foothills- Including the city of Lander 209 AM MDT Wed Oct 14 2020 ...HIGH WIND WARNING REMAINS IN EFFECT UNTIL 9 AM MDT THIS MORNING... * WHAT...West winds 25 to 35 mph with gusts up to 60 mph expected. * WHERE...Lander Foothills. * WHEN...Until 9 AM MDT Wednesday. * IMPACTS...Damaging winds may blow down trees and power lines. Travel will be difficult, especially for high profile vehicles. * ADDITIONAL DETAILS...Strong northwest winds are also possible from 9 AM to 6 PM Wednesday. PRECAUTIONARY/PREPAREDNESS ACTIONS... People should avoid being outside in forested areas and around trees and branches. If possible, remain in the lower levels of your home during the windstorm, and avoid windows. Use caution if you must drive. && $$ WYZ016-141615- /O.CON.KRIW.HW.W.0016.000000T0000Z-201015T0100Z/ Upper Wind River Basin- Including the city of Dubois 209 AM MDT Wed Oct 14 2020 ...HIGH WIND WARNING REMAINS IN EFFECT UNTIL 7 PM MDT THIS EVENING... * WHAT...West winds 30 to 40 mph with gusts up to 60 mph expected. * WHERE...Upper Wind River Basin. * WHEN...Until 7 PM MDT Wednesday. * IMPACTS...Damaging winds may blow down trees and power lines. Travel will 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. && $$ For more information from the National Weather Service visit https://weather.gov/riw
018 WWUS75 KRIW 141205 NPWRIW URGENT - WEATHER MESSAGE National Weather Service Riverton WY 605 AM MDT Wed Oct 14 2020 WYZ002-003-014-015-141500- /O.CON.KRIW.HW.W.0016.000000T0000Z-201014T1500Z/ Absaroka Mountains-Cody Foothills-Wind River Mountains West- Wind River Mountains East- Including the cities of Clark, Cody, and Meeteetse 605 AM MDT Wed Oct 14 2020 ...HIGH WIND WARNING REMAINS IN EFFECT UNTIL 9 AM MDT THIS MORNING... * WHAT...West winds 40 to 50 mph with gusts up to 75 mph expected in the mountains, and 30 to 40 mph with gusts up to 65 mph in the Cody Foothills expected. * WHERE...Absaroka Mountains, Cody Foothills, Wind River Mountains West, and Wind River Mountains East. * WHEN...Until 9 AM MDT today. * IMPACTS...Damaging winds may blow down trees and power lines. Travel will be difficult, especially for high profile vehicles. PRECAUTIONARY/PREPAREDNESS ACTIONS... People should avoid being outside in forested areas and around trees and branches. If possible, remain in the lower levels of your home during the windstorm, and avoid windows. Use caution if you must drive. && $$ WYZ010-150100- /O.CON.KRIW.HW.W.0016.000000T0000Z-201015T0100Z/ Northeast Johnson County- Including the city of Buffalo 605 AM MDT Wed Oct 14 2020 ...HIGH WIND WARNING REMAINS IN EFFECT UNTIL 7 PM MDT THIS EVENING... * WHAT...Northwest winds 35 to 45 mph with gusts up to 65 mph expected. * WHERE...Northeast Johnson County. * WHEN...Until 7 PM MDT today. * IMPACTS...Damaging winds may blow down trees and power lines. Travel will 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. && $$ WYZ017-019-020-025>030-150100- /O.CON.KRIW.HW.W.0016.201014T1500Z-201015T0100Z/ Wind River Basin-Green Mountains and Rattlesnake Range- Natrona County Lower Elevations-Upper Green River Basin Foothills- Upper Green River Basin-South Lincoln County- Rock Springs and Green River-Flaming Gorge-East Sweetwater County- Including the cities of Riverton, Shoshoni, Jeffrey City, Casper, Pinedale, La Barge, Big Piney, Farson, Kemmerer, Cokeville, Rock Springs, Green River, and Wamsutter 605 AM MDT Wed Oct 14 2020 ...HIGH WIND WARNING REMAINS IN EFFECT UNTIL 7 PM MDT THIS EVENING... * WHAT...West winds 25 to 40 mph with gusts up to 65 mph expected. * WHERE...Green Mountains and Rattlesnake Range, Natrona County Lower Elevations, South Lincoln County, Rock Springs and Green River, Flaming Gorge, and East Sweetwater County. * WHEN...From 9 AM to 7 PM MDT today. * IMPACTS...Damaging winds may blow down trees and power lines. Travel will be difficult, especially for high profile vehicles. PRECAUTIONARY/PREPAREDNESS ACTIONS... People should avoid being outside in forested areas and around trees and branches. If possible, remain in the lower levels of your home during the windstorm, and avoid windows. Use caution if you must drive. && $$ WYZ018-141500- /O.CON.KRIW.HW.W.0016.000000T0000Z-201014T1500Z/ Lander Foothills- Including the city of Lander 605 AM MDT Wed Oct 14 2020 ...HIGH WIND WARNING REMAINS IN EFFECT UNTIL 9 AM MDT THIS MORNING... * WHAT...West winds 25 to 35 mph with gusts up to 60 mph expected. * WHERE...Lander Foothills. * WHEN...Until 9 AM MDT today. * IMPACTS...Damaging winds may blow down trees and power lines. Travel will be difficult, especially for high profile vehicles. * ADDITIONAL DETAILS...Strong northwest winds are also possible from 9 AM to 6 PM today. 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. && $$ WYZ016-150100- /O.CON.KRIW.HW.W.0016.000000T0000Z-201015T0100Z/ Upper Wind River Basin- Including the city of Dubois 605 AM MDT Wed Oct 14 2020 ...HIGH WIND WARNING REMAINS IN EFFECT UNTIL 7 PM MDT THIS EVENING... * WHAT...West winds 30 to 40 mph with gusts up to 60 mph expected. * WHERE...Upper Wind River Basin. * WHEN...Until 7 PM MDT today. * IMPACTS...Damaging winds may blow down trees and power lines. Travel will be difficult, especially for high profile vehicles. PRECAUTIONARY/PREPAREDNESS ACTIONS... People should avoid being outside in forested areas and around trees and branches. If possible, remain in the lower levels of your home during the windstorm, and avoid windows. Use caution if you must drive. && $$ For more information from the National Weather Service visit https://weather.gov/riw
457 WWUS75 KRIW 141508 NPWRIW URGENT - WEATHER MESSAGE National Weather Service Riverton WY 908 AM MDT Wed Oct 14 2020 WYZ002-150100- /O.EXP.KRIW.HW.W.0016.000000T0000Z-201014T1500Z/ /O.NEW.KRIW.HW.W.0017.201014T1508Z-201015T0100Z/ Absaroka Mountains- 908 AM MDT Wed Oct 14 2020 ...HIGH WIND WARNING IN EFFECT UNTIL 7 PM MDT THIS EVENING... * WHAT...West winds 35 to 50 mph with gusts up to 75 mph. * WHERE...Absaroka Mountains. * WHEN...Until 7 PM MDT this evening. * IMPACTS...Damaging winds will blow down trees and power lines. Travel will 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. && $$ WYZ003-014-015-018-141615- /O.EXP.KRIW.HW.W.0016.000000T0000Z-201014T1500Z/ Cody Foothills-Wind River Mountains West- Wind River Mountains East-Lander Foothills- Including the cities of Clark, Cody, Meeteetse, and Lander 908 AM MDT Wed Oct 14 2020 ...HIGH WIND WARNING HAS EXPIRED... Strong winds have subsided this morning, but could still remain high during the day in some areas, especially South Pass. $$ WYZ010-150100- /O.CON.KRIW.HW.W.0016.000000T0000Z-201015T0100Z/ Northeast Johnson County- Including the city of Buffalo 908 AM MDT Wed Oct 14 2020 ...HIGH WIND WARNING REMAINS IN EFFECT UNTIL 7 PM MDT THIS EVENING... * WHAT...Northwest winds 35 to 45 mph with gusts up to 65 mph expected. * WHERE...Northeast Johnson County. * WHEN...Until 7 PM MDT today. * IMPACTS...Damaging winds may blow down trees and power lines. Travel will 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. && $$ WYZ017-019-020-025>030-150100- /O.CON.KRIW.HW.W.0016.000000T0000Z-201015T0100Z/ Wind River Basin-Green Mountains and Rattlesnake Range- Natrona County Lower Elevations-Upper Green River Basin Foothills- Upper Green River Basin-South Lincoln County- Rock Springs and Green River-Flaming Gorge-East Sweetwater County- Including the cities of Riverton, Shoshoni, Jeffrey City, Casper, Pinedale, La Barge, Big Piney, Farson, Kemmerer, Cokeville, Rock Springs, Green River, and Wamsutter 908 AM MDT Wed Oct 14 2020 ...HIGH WIND WARNING REMAINS IN EFFECT UNTIL 7 PM MDT THIS EVENING... * WHAT...West winds 25 to 40 mph with gusts 55 to 65 mph expected, particularly at the higher elevations. * WHERE...Green Mountains and Rattlesnake Range, Natrona County Lower Elevations, South Lincoln County, Rock Springs and Green River, Flaming Gorge, and East Sweetwater County. * WHEN...From 9 AM to 7 PM MDT today. * IMPACTS...Damaging winds may blow down trees and power lines. Travel will be difficult, especially for high profile vehicles. PRECAUTIONARY/PREPAREDNESS ACTIONS... People should avoid being outside in forested areas and around trees and branches. If possible, remain in the lower levels of your home during the windstorm, and avoid windows. Use caution if you must drive. && $$ WYZ016-150100- /O.CON.KRIW.HW.W.0016.000000T0000Z-201015T0100Z/ Upper Wind River Basin- Including the city of Dubois 908 AM MDT Wed Oct 14 2020 ...HIGH WIND WARNING REMAINS IN EFFECT UNTIL 7 PM MDT THIS EVENING... * WHAT...West winds 25 to 35 mph with gusts up to 60 mph expected. * WHERE...Upper Wind River Basin. * WHEN...Until 7 PM MDT today. * IMPACTS...Damaging winds may blow down trees and power lines. Travel will 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. && $$ For more information from the National Weather Service visit https://weather.gov/riw
873 WWUS75 KRIW 141856 NPWRIW URGENT - WEATHER MESSAGE National Weather Service Riverton WY 1256 PM MDT Wed Oct 14 2020 WYZ020-142000- /O.CAN.KRIW.HW.W.0016.000000T0000Z-201015T0100Z/ Natrona County Lower Elevations- Including the city of Casper 1256 PM MDT Wed Oct 14 2020 ...HIGH WIND WARNING IS CANCELLED... Winds across Natrona County are not as strong as anticipated today. Thus, the warning has been cancelled. Wind gusts up to 45 mph from the northwest can still be expected in many locations through the rest of the afternoon. $$ WYZ010-150100- /O.CON.KRIW.HW.W.0016.000000T0000Z-201015T0100Z/ Northeast Johnson County- Including the city of Buffalo 1256 PM MDT Wed Oct 14 2020 ...HIGH WIND WARNING REMAINS IN EFFECT UNTIL 7 PM MDT THIS EVENING... * WHAT...Northwest winds 35 to 45 mph with gusts up to 65 mph expected. * WHERE...Northeast Johnson County. * WHEN...Until 7 PM MDT today. * IMPACTS...Damaging winds may blow down trees and power lines. Travel will 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. && $$ WYZ017-019-025>030-150100- /O.CON.KRIW.HW.W.0016.000000T0000Z-201015T0100Z/ Wind River Basin-Green Mountains and Rattlesnake Range- Upper Green River Basin Foothills-Upper Green River Basin- South Lincoln County-Rock Springs and Green River-Flaming Gorge- East Sweetwater County- Including the cities of Riverton, Shoshoni, Jeffrey City, Pinedale, La Barge, Big Piney, Farson, Kemmerer, Cokeville, Rock Springs, Green River, and Wamsutter 1256 PM MDT Wed Oct 14 2020 ...HIGH WIND WARNING REMAINS IN EFFECT UNTIL 7 PM MDT THIS EVENING... * WHAT...West winds 25 to 40 mph with gusts 55 to 65 mph expected, particularly at the higher elevations. * WHERE...Green Mountains and Rattlesnake Range, Natrona County Lower Elevations, South Lincoln County, Rock Springs and Green River, Flaming Gorge, and East Sweetwater County. * WHEN...From 9 AM to 7 PM MDT today. * IMPACTS...Damaging winds may blow down trees and power lines. Travel will be difficult, especially for high profile vehicles. Visibility may be reduced as well by blowing dust. PRECAUTIONARY/PREPAREDNESS ACTIONS... People should avoid being outside in forested areas and around trees and branches. If possible, remain in the lower levels of your home during the windstorm, and avoid windows. Use caution if you must drive. && $$ WYZ016-150100- /O.CON.KRIW.HW.W.0016.000000T0000Z-201015T0100Z/ Upper Wind River Basin- Including the city of Dubois 1256 PM MDT Wed Oct 14 2020 ...HIGH WIND WARNING REMAINS IN EFFECT UNTIL 7 PM MDT THIS EVENING... * WHAT...West winds 25 to 35 mph with gusts up to 60 mph expected. * WHERE...Upper Wind River Basin. * WHEN...Until 7 PM MDT today. * IMPACTS...Damaging winds may blow down trees and power lines. Travel will 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. && $$ WYZ002-150100- /O.CON.KRIW.HW.W.0017.000000T0000Z-201015T0100Z/ Absaroka Mountains- 1256 PM MDT Wed Oct 14 2020 ...HIGH WIND WARNING REMAINS IN EFFECT UNTIL 7 PM MDT THIS EVENING... * WHAT...West winds 35 to 50 mph with gusts up to 75 mph. * WHERE...Absaroka Mountains. * WHEN...Until 7 PM MDT this evening. * IMPACTS...Damaging winds will blow down trees and power lines. Travel will be difficult, especially for high profile vehicles. PRECAUTIONARY/PREPAREDNESS ACTIONS... People should avoid being outside in forested areas and around trees and branches. If possible, remain in the lower levels of your home during the windstorm, and avoid windows. Use caution if you must drive. && $$ For more information from the National Weather Service visit https://weather.gov/riw
091 WWUS75 KRIW 150039 NPWRIW URGENT - WEATHER MESSAGE National Weather Service Riverton WY 639 PM MDT Wed Oct 14 2020 WYZ010-150145- /O.EXP.KRIW.HW.W.0016.000000T0000Z-201015T0100Z/ Northeast Johnson County- Including the city of Buffalo 639 PM MDT Wed Oct 14 2020 ...HIGH WIND WARNING WILL EXPIRE AT 7 PM MDT THIS EVENING... Winds have decreased below high wind warning criteria, thus the high wind warning will be allowed to expire at 7 PM. $$ WYZ017-019-025>030-150145- /O.EXP.KRIW.HW.W.0016.000000T0000Z-201015T0100Z/ Wind River Basin-Green Mountains and Rattlesnake Range- Upper Green River Basin Foothills-Upper Green River Basin- South Lincoln County-Rock Springs and Green River-Flaming Gorge- East Sweetwater County- Including the cities of Riverton, Shoshoni, Jeffrey City, Pinedale, La Barge, Big Piney, Farson, Kemmerer, Cokeville, Rock Springs, Green River, and Wamsutter 639 PM MDT Wed Oct 14 2020 ...HIGH WIND WARNING WILL EXPIRE AT 7 PM MDT THIS EVENING... Winds have decreased below high wind warning criteria, thus the high wind warning will be allowed to expire at 7 PM. $$ WYZ016-150145- /O.EXP.KRIW.HW.W.0016.000000T0000Z-201015T0100Z/ Upper Wind River Basin- Including the city of Dubois 639 PM MDT Wed Oct 14 2020 ...HIGH WIND WARNING WILL EXPIRE AT 7 PM MDT THIS EVENING... Winds have decreased below high wind warning criteria, thus the high wind warning will be allowed to expire at 7 PM. $$ WYZ002-150145- /O.EXP.KRIW.HW.W.0017.000000T0000Z-201015T0100Z/ Absaroka Mountains- 639 PM MDT Wed Oct 14 2020 ...HIGH WIND WARNING WILL EXPIRE AT 7 PM MDT THIS EVENING... Winds have decreased below high wind warning criteria, thus the high wind warning will be allowed to expire at 7 PM. $$ For more information from the National Weather Service visit https://weather.gov/riw
What forecasters said that day
The local office's own words before this high wind warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.
NWS Riverton, WY wrote its last area forecast discussion before this high wind warning went out at Oct 13, 11:15 AM MDT, 2 hours 5 minutes earlier.
Area forecast discussion, Oct 13, 11:15 AM MDT, 2 hours 5 minutes before
Area Forecast Discussion National Weather Service Riverton WY 1115 AM MDT Tue Oct 13 2020 .SHORT TERM...Today through Wednesday A cold front will begin to sag toward the area today. Northwest Wyoming should be the area strongest hit. With snow levels at 9000 feet most areas will see rain, with just a skiff of snow near the peaks for today. Winds will also become gusty this afternoon, but thankfully not quite as strong as the last few days. Things change tonight as the jet pushes the cold front south into the area. The front right quad of a 140+ knot jet max will enter northern Wyoming with the front this evening. Boundary layer winds in the Absarokas and Winds are showing 60-75 knots across several models starting around 00Z through 15Z Wednesday. Ahead of the front, winds will be at a favorable direction for downslope gusts into the Cody and Lander Foothills. This has led us to issue a High Wind Watch for these areas starting this evening and going through mid morning Wednesday. The Upper Wind River Basin has also been included in this watch but wind look to remain strong in this area through Wednesday evening. As the front continues to move through the area Wednesday, winds will begin to mix to the surface from north to south. Northern Johnson County will be first to shift to its favorite northwest flow, so the High Wind Watch for this area will start near sunrise Wednesday. By mid morning Wednesday the Wind Corridor from Lincoln to Natrona Counties will join the watch. High winds will be possible for these areas through Wednesday evening. Currently, Models do not reflect winds mixing strong enough to include the rest of the Wind River Basin or Northern Bighorn Basin. These areas will need to be looked at again with the next model run. On top of all the winds, Wednesday will still see some showers in the northwest as the front pushes through. Most of the activity will be in the mountains, and any snow accumulation will be Wednesday morning above 9000 ft. .LONG TERM...Wednesday night to Monday Strong northwesterly flow is projected for Thursday, as the jet will remain over the region. The core of the jet will remain strong (140+ kt) as well. This will translate to another likely day of high to strong winds across the forecast area. However, these winds are not reflected at 700mb and only show 20 to 35 kt. For now, have left surface winds at ~25 kt. The ridge will nudge eastward over the West Coast Friday, which will shift the jet over eastern MT and the Plains. High winds will likely continue over northern Johnson County as a result and gusty winds continuing elsewhere. Precipitation looks to be confined to northern and eastern portions of WY Thursday. The temperatures at 700mb look to be cold enough for any precipitation to be in the form of snow, however accumulations in the lower elevations will be little to none. A few inches will be possible on the northern end of the Bighorns Wednesday night into Thursday morning. Another cold front is projected to move in from the north on Saturday with more precipitation possible. Models differ on how far south the cold front and the associated cold air will get. The ECMWF is showing the most benign option with the least amount of gradient and the highest heights and the Canadian being the most robust in the cold air push. The GFS shows 700mb temperatures falling throughout Saturday, with -12C degrees for the northeastern portions and -8C degrees around Riverton, by Saturday night. The forecast continue to be highly variable for this period and will come into better forecast in the next day or two. The source for this airmass is coming down from northern Canada, which is contributing to this variability. Temperatures for the period look to start off within a few degrees of climatology on Wednesday. A bit cooler conditions are expected for Thursday. The end of the work week should see a bit of a rebound before temperatures turn significantly cooler by Sunday and Monday. MOS guidance on the GFS shows a high on Sunday of 45 at RIW and 35 for Monday. && .AVIATION...(For the 18Z TAFS through 18Z Wednesday afternoon) Issued at 1114 AM MDT Tue Oct 13 2020 VFR visibilities will exist across all TAF sites through the period. Winds will be the main issue at all sites as sustained winds will be above 20 knots and wind gusts could gust up to and over 40 knots through the TAF period. Ahead of a cold front, VCSH exist at KJAC from 18Z today through 12Z tomorrow and KCOD from 06Z through 12Z tomorrow which could lead to some MVFR visibilities until showers dissipate. && .FIRE WEATHER... Another cold front will move toward the area today and bring a chance of showers to northern Wyoming, most numerous in the afternoon and again Wednesday. Mainly dry conditions will continue in southern Wyoming. Winds will again be gusty for most areas, but not as strong as previous days. Critical fire weather is not expected at this time, but locally elevated fire weather will be possible in the afternoon in southern Wyoming. Winds will decrease overnight in the lower elevations, however winds in the mountains will continue to see strong to possibly high gusts. A High Wind Watch has been issued for the Absaroka, Wind River Mountains, Cody and Lander Foothills. Winds will continue to be an issue Wednesday as the cold front moves through the area. While winds will slow a bit in the mountains and foothills Wednesday morning, expect an increase in northern Johnson County, Upper Wind River Basin, and for the Wind Corridor from Lincoln to Natrona County through Wednesday evening. A High Wind Watch has also been issued for these areas. && .RIW WATCHES/WARNINGS/ADVISORIES... High Wind Watch from Wednesday morning through Wednesday evening for WYZ019-020-027>030. High Wind Watch from 6 PM MDT this evening through Wednesday morning for WYZ002-003-014-015-018. High Wind Watch from Wednesday morning through Wednesday evening for WYZ010. High Wind Watch from 6 PM MDT this evening through Wednesday evening for WYZ016. && SHORT TERM...Hulme LONG TERM...LaVoie/Clayton AVIATION...Vorst FIRE WEATHER...Hulme
Hazardous weather outlook, Oct 13, 5:11 AM MDT, 8 hours 9 minutes before
Hazardous Weather Outlook National Weather Service Riverton WY 511 AM MDT Tue Oct 13 2020 WYZ001>020-022>030-141115- Yellowstone National Park-Absaroka Mountains-Cody Foothills- North Big Horn Basin-Southwest Big Horn Basin- Southeast Big Horn Basin-Owl Creek and Bridger Mountains- Bighorn Mountains West-Bighorn Mountains Southeast- Northeast Johnson County-Southeast Johnson County- Teton and Gros Ventre Mountains-Jackson Hole- Wind River Mountains West-Wind River Mountains East- Upper Wind River Basin-Wind River Basin-Lander Foothills- Green Mountains and Rattlesnake Range- Natrona County Lower Elevations-Casper Mountain-Star Valley- Salt River and Wyoming Ranges-Upper Green River Basin Foothills- Upper Green River Basin-South Lincoln County- Rock Springs and Green River-Flaming Gorge-East Sweetwater County- 511 AM MDT Tue Oct 13 2020 ...High Wind Watch in effect for much of the area tonight into Wednesday... This Hazardous Weather Outlook is for Western and Central Wyoming. .DAY ONE...Today and Tonight. A slight chance for rain showers across the north. Breezy to windy conditions return this afternoon, but not as strong as previous days. Winds will increase significantly tonight in the Absaroka and Wind River Mountains, as well as in the Upper Wind River Basin. Strong to high downslope winds are also possible in the Cody and Lander Foothills. .DAYS TWO THROUGH SEVEN...Wednesday through Monday. Wednesday...High to strong winds will continue across the area. Wednesday night...A slight chance of rain showers over the north, with a chance of snow in the northern mountains. Saturday...A chance for rain showers and mountain snow across all but southern portions. .SPOTTER INFORMATION STATEMENT... Weather spotters are encouraged to report significant weather conditions according to standard operating procedures.
The office that day
Everything else NWS Riverton, WY issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Oct 13, 3:54 AM MDT | High Wind Watch | RIW | Fremont, Hot Springs, Johnson, Lincoln, Natrona, Park and 2 more | 9 hr |
Nearby
High Wind Warnings in Wyoming, 2020Every high wind warning in 2020
Sources
The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.