Alert archive / Wyoming / High Wind Warnings in 2021
High Wind Warning 40, NWS Cheyenne, WY
NWS Cheyenne, WY issued this high wind warning at Nov 6, 2021, 2:29 PM MDT for Albany County, Carbon County, Platte County, Wyoming. It took effect at Nov 6, 2021, 9:00 PM MDT. It was in force for 15 hr. 20 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
- Nov 6, 2021, 2:29 PM MDT (20:29 UTC)
- In effect from
- Nov 6, 2021, 9:00 PM MDT
- Expired
- Nov 7, 2021, 11:00 AM MST
- In force
- 15 hr
- Issued by
- NWS Cheyenne, WY
Counties Albany County, WY, Carbon County, WY, Platte County, WY
The radar
The Cheyenne radar (KCYS), 116 km from the middle of the area, began a volume at 20:29 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 |
|---|---|---|---|
| Nov 7, 1:14 AM MDT | NON-TSTM WND GST 62 | 1 Nnw Arlington, WY | MESONET STATION KARL 0.6 NW ARLINGTON (WYDOT). |
| Nov 7, 1:22 AM MST | NON-TSTM WND GST 60 | 1 Nnw Arlington, WY | MESONET STATION KARL 0.6 NW ARLINGTON (WYDOT). |
| Nov 7, 2:06 AM MST | NON-TSTM WND GST 60 | 3 Nw Elk Mountain, WY | MESONET STATION WY19 2.9 NW ELK MOUNTAIN (WYDOT). |
| Nov 7, 2:12 AM MST | NON-TSTM WND GST 64 | 1 Nnw Arlington, WY | MESONET STATION KARL 0.6 NW ARLINGTON (WYDOT). |
| Nov 7, 2:22 AM MST | NON-TSTM WND GST 58 | 7 Ese Arlington, WY | MESONET STATION WY24 6.9 E ARLINGTON (WYDOT). |
| Nov 7, 2:26 AM MST | HIGH SUST WINDS 43 | 1 Nnw Arlington, WY | SUSTAINED WINDS > 40 MPH FOR OVER 1 HOUR. MESONET STATION KARL 0.6 NW ARLINGTON (WYDOT). |
| Nov 7, 2:34 AM MST | NON-TSTM WND GST 65 | 1 Nnw Arlington, WY | MESONET STATION KARL 0.6 NW ARLINGTON (WYDOT). |
| Nov 7, 3:06 AM MST | NON-TSTM WND GST 59 | 1 Nnw Arlington, WY | MESONET STATION KARL 0.6 NW ARLINGTON (WYDOT). |
| Nov 7, 3:42 AM MST | NON-TSTM WND GST 62 | 7 Ese Arlington, WY | MESONET STATION WY24 6.9 E ARLINGTON (WYDOT). |
| Nov 7, 3:52 AM MST | NON-TSTM WND GST 66 | 8 S Sibley Peak, WY | MESONET STATION WY1 8.4 S SIBLEY PEAK (WYDOT). |
| Nov 7, 4:12 AM MST | NON-TSTM WND GST 61 | 7 Ese Arlington, WY | MESONET STATION WY24 6.9 E ARLINGTON (WYDOT). |
| Nov 7, 4:22 AM MST | NON-TSTM WND GST 60 | 8 S Sibley Peak, WY | MESONET STATION WY1 8.4 S SIBLEY PEAK (WYDOT). |
| Nov 7, 4:36 AM MST | NON-TSTM WND GST 58 | 1 Nnw Arlington, WY | MESONET STATION KARL 0.6 NW ARLINGTON (WYDOT). |
| Nov 7, 4:52 AM MST | NON-TSTM WND GST 58 | 11 Se Arlington, WY | MESONET STATION WY25 10.7 SE ARLINGTON (WYDOT). |
| Nov 7, 5:06 AM MST | NON-TSTM WND GST 58 | 7 Ese Arlington, WY | MESONET STATION WY24 6.9 E ARLINGTON (WYDOT). |
| Nov 7, 5:06 AM MST | NON-TSTM WND GST 59 | 1 Nnw Arlington, WY | MESONET STATION KARL 0.6 NW ARLINGTON (WYDOT). |
| Nov 7, 6:06 AM MST | NON-TSTM WND GST 63 | 1 Nnw Arlington, WY | MESONET STATION KARL 0.6 NW ARLINGTON (WYDOT). |
| Nov 7, 6:22 AM MST | NON-TSTM WND GST 58 | 7 Ese Arlington, WY | MESONET STATION WY24 6.9 E ARLINGTON (WYDOT). |
| Nov 7, 6:26 AM MST | HIGH SUST WINDS 45 | 1 Nnw Arlington, WY | SUSTAINED WINDS > 40 MPH FOR OVER 1 HOUR. MESONET STATION KARL 0.6 NW ARLINGTON (WYDOT). |
| Nov 7, 6:26 AM MST | NON-TSTM WND GST 65 | 1 Nnw Arlington, WY | MESONET STATION KARL 0.6 NW ARLINGTON (WYDOT). |
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, 8.5 hours before the alert went out and 249 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
- 2873 m above ground
- 0-6 km bulk shear
- 67 kt
- 0-1 km storm-relative helicity
- 283 m²/s²
- 0-3 km storm-relative helicity
- 357 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
047 WWUS75 KCYS 062029 NPWCYS URGENT - WEATHER MESSAGE National Weather Service Cheyenne WY 229 PM MDT Sat Nov 6 2021 WYZ110-071100- /O.NEW.KCYS.HW.W.0040.211107T0300Z-211107T1800Z/ North Snowy Range Foothills- Including the cities of Arlington and Elk Mountain 229 PM MDT Sat Nov 6 2021 ...HIGH WIND WARNING IN EFFECT FROM 9 PM MDT THIS EVENING TO 11 AM MST SUNDAY... * WHAT...Southwest winds 35 to 45 mph with gusts up to 60 mph expected. * WHERE...North Snowy Range Foothills including Arlington and Elk Mountain. * WHEN...From 9 PM MDT this evening to 11 AM MST Sunday. * IMPACTS...Mainly to transportation. Strong head winds and cross winds will be hazardous to light weight and high profile vehicles, including campers and tractor trailers. There will be a high risk for vehicle blow overs, particularly along Interstate 80 near Arlington and Elk Mountain. 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. && $$
4 follow-up statements
004 WWUS75 KCYS 071001 NPWCYS URGENT - WEATHER MESSAGE National Weather Service Cheyenne WY 301 AM MST Sun Nov 7 2021 WYZ110-071800- /O.CON.KCYS.HW.W.0040.000000T0000Z-211107T1800Z/ North Snowy Range Foothills- Including the cities of Arlington and Elk Mountain 301 AM MST Sun Nov 7 2021 ...HIGH WIND WARNING REMAINS IN EFFECT UNTIL 11 AM MST THIS MORNING... * WHAT...Southwest winds 35 to 45 mph with gusts up to 65 mph expected. * WHERE...North Snowy Range Foothills including Arlington and Elk Mountain. * WHEN...Until 11 AM MST Sunday. * IMPACTS...Mainly to transportation. Strong head winds and cross winds will be hazardous to light weight and high profile vehicles, including campers and tractor trailers. There will be a high risk for vehicle blow overs, particularly along Interstate 80 near Arlington and Elk Mountain. PRECAUTIONARY/PREPAREDNESS ACTIONS... Monitor the latest forecasts and warnings for updates on this situation. Fasten loose objects or shelter objects in a safe location prior to the onset of winds. && $$ Brothers
570 WWUS75 KCYS 071102 NPWCYS URGENT - WEATHER MESSAGE National Weather Service Cheyenne WY 402 AM MST Sun Nov 7 2021 WYZ107-071800- /O.EXA.KCYS.HW.W.0040.000000T0000Z-211107T1800Z/ East Platte County- Including the cities of Wheatland and Guernsey 402 AM MST Sun Nov 7 2021 ...HIGH WIND WARNING IN EFFECT UNTIL 11 AM MST THIS MORNING... * WHAT...West winds 25 to 35 mph with gusts to 60 MPH. * WHERE...East Platte County including Interstate 25 between Wheatland and Glendo. * WHEN...Until 11 AM MST Sunday. * IMPACTS...Mainly to transportation. Strong cross winds will be hazardous to light weight and high profile vehicles, including campers and tractor trailers. There will be a high risk for vehicle blow overs, particularly along Interstate 25 between Wheatland and Glendo. 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. && $$ WYZ110-071800- /O.CON.KCYS.HW.W.0040.000000T0000Z-211107T1800Z/ North Snowy Range Foothills- Including the cities of Arlington and Elk Mountain 402 AM MST Sun Nov 7 2021 ...HIGH WIND WARNING REMAINS IN EFFECT UNTIL 11 AM MST THIS MORNING... * WHAT...Southwest winds 35 to 45 mph with gusts up to 65 mph expected. * WHERE...North Snowy Range Foothills including Arlington and Elk Mountain. * WHEN...Until 11 AM MST Sunday. * IMPACTS...Mainly to transportation. Strong head winds and cross winds will be hazardous to light weight and high profile vehicles, including campers and tractor trailers. There will be a high risk for vehicle blow overs, particularly along Interstate 80 near Arlington and Elk Mountain. PRECAUTIONARY/PREPAREDNESS ACTIONS... Monitor the latest forecasts and warnings for updates on this situation. Fasten loose objects or shelter objects in a safe location prior to the onset of winds. && $$ Brothers
900 WWUS75 KCYS 071457 NPWCYS URGENT - WEATHER MESSAGE National Weather Service Cheyenne WY 757 AM MST Sun Nov 7 2021 WYZ107-071600- /O.CAN.KCYS.HW.W.0040.000000T0000Z-211107T1800Z/ East Platte County- Including the cities of Wheatland and Guernsey 757 AM MST Sun Nov 7 2021 ...HIGH WIND WARNING IS CANCELLED... Wind speeds have continued to drop off across the area. Still may periodic west winds gust up to 30 mph during the next few hours, but these winds should remain below High Wind Warning criteria. Therefore, the high wind warning has been cancelled. $$ WYZ110-071600- /O.CON.KCYS.HW.W.0040.000000T0000Z-211107T1800Z/ North Snowy Range Foothills- Including the cities of Arlington and Elk Mountain 757 AM MST Sun Nov 7 2021 ...HIGH WIND WARNING REMAINS IN EFFECT UNTIL 11 AM MST THIS MORNING... * WHAT...Southwest winds 35 to 45 mph with gusts up to 65 mph expected. * WHERE...North Snowy Range Foothills including Arlington and Elk Mountain. * WHEN...Until 11 AM MST Sunday. * IMPACTS...Mainly to transportation. Strong head winds and cross winds will be hazardous to light weight and high profile vehicles, including campers and tractor trailers. There will be a high risk for vehicle blow overs, particularly along Interstate 80 near Arlington and Elk Mountain. PRECAUTIONARY/PREPAREDNESS ACTIONS... People should avoid being outside in forested areas and around trees and branches. If possible, remain in the lower levels of your home during the windstorm, and avoid windows. Use caution if you must drive. && $$
194 WWUS75 KCYS 071803 NPWCYS URGENT - WEATHER MESSAGE National Weather Service Cheyenne WY 1103 AM MST Sun Nov 7 2021 WYZ110-071915- /O.EXP.KCYS.HW.W.0040.000000T0000Z-211107T1800Z/ North Snowy Range Foothills- Including the cities of Arlington and Elk Mountain 1103 AM MST Sun Nov 7 2021 ...HIGH WIND WARNING HAS EXPIRED... High winds have slackened across the Arlington and Elk Mountain areas during the past couple of hours. These wind speeds should continue to slacken during the remainder of the afternoon. Until then, expect periodic gusts between 40 and 50 mph early this afternoon. $$
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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.