Alert archive / Wyoming / Wind Chill Warnings in 2020
Wind Chill Warning 2, NWS Cheyenne, WY
NWS Cheyenne, WY issued this wind chill warning at Oct 26, 2020, 2:34 PM MDT for Albany County, Wyoming. It took effect at Oct 26, 2020, 8:00 PM MDT. It was in force for 13 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 26, 2020, 2:34 PM MDT (20:34 UTC)
- In effect from
- Oct 26, 2020, 8:00 PM MDT
- Expired
- Oct 27, 2020, 9:00 AM MDT
- In force
- 13 hr
- Issued by
- NWS Cheyenne, WY
County Albany County, WY
The radar
The Cheyenne radar (KCYS), 95 km from the middle of the area, began a volume at 20:31 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, 8.6 hours before the alert went out and 270 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
- 1652 m above ground
- 0-6 km bulk shear
- 31 kt
- 0-1 km storm-relative helicity
- 93 m²/s²
- 0-3 km storm-relative helicity
- 166 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
791 WWUS45 KCYS 262034 WSWCYS URGENT - WINTER WEATHER MESSAGE National Weather Service Cheyenne WY 234 PM MDT Mon Oct 26 2020 WYZ115-271100- /O.NEW.KCYS.WC.W.0002.201027T0200Z-201027T1500Z/ Laramie Valley- Including the cities of Bosler and Laramie 234 PM MDT Mon Oct 26 2020 ...WIND CHILL WARNING IN EFFECT FROM 8 PM THIS EVENING TO 9 AM MDT TUESDAY... * WHAT...Dangerously cold wind chills expected. Wind chills as low as 35 below zero. * WHERE...Laramie Valley * WHEN...From 8 PM this evening to 9 AM MDT Tuesday. * IMPACTS...The dangerously cold wind chills could cause frostbite on exposed skin in as little as 10 minutes. PRECAUTIONARY/PREPAREDNESS ACTIONS... Avoid outside activities if possible. When outside, make sure you wear appropriate clothing, a hat, and gloves. && $$ NEZ002-003-019>021-054-055-095-096-WYZ105-108>110-113-119-271100- /O.NEW.KCYS.WC.Y.0002.201027T0200Z-201027T1500Z/ Dawes-Box Butte-Scotts Bluff County-Banner County-Morrill- Kimball County-Cheyenne-North Sioux-South Sioux-Shirley Basin- Goshen County-Central Carbon County-North Snowy Range Foothills- Upper North Platte River Basin-East Laramie County- Including the cities of Chadron, Chadron St Park, Alliance, Scottsbluff, Gering, Harrisburg, Angora, Bridgeport, Bayard, Redington, Kimball, Brownson, Sidney, Harrison, Agate, Medicine Bow, Shirley Basin, Torrington, Rawlins, Arlington, Elk Mountain, Saratoga, Encampment, and Pine Bluffs 234 PM MDT Mon Oct 26 2020 ...WIND CHILL ADVISORY IN EFFECT FROM 8 PM THIS EVENING TO 9 AM MDT TUESDAY... * WHAT...Very cold wind chills expected. Wind chills as low as 25 below zero. * WHERE...Lower elevations of Carbon county, far eastern Wyoming and the Nebraska Panhandle. * WHEN...From 8 PM this evening to 9 AM MDT Tuesday. * IMPACTS...The cold wind chills could cause frostbite on exposed skin in as little as 30 minutes. PRECAUTIONARY/PREPAREDNESS ACTIONS... Use caution while outside. Wear appropriate clothing, a hat, and gloves. && $$
3 follow-up statements
201 WWUS45 KCYS 270204 WSWCYS URGENT - WINTER WEATHER MESSAGE National Weather Service Cheyenne WY 804 PM MDT Mon Oct 26 2020 ...VERY COLD WINDCHILLS EXPECTED TONIGHT INTO TUESDAY MORNING... WYZ115-271215- /O.CON.KCYS.WC.W.0002.000000T0000Z-201027T1500Z/ Laramie Valley- Including the cities of Bosler and Laramie 804 PM MDT Mon Oct 26 2020 ...WIND CHILL WARNING REMAINS IN EFFECT UNTIL 9 AM MDT TUESDAY... * WHAT...Dangerously cold wind chills expected. Wind chills as low as 35 below zero. * WHERE...Laramie Valley. * WHEN...From 8 PM this evening to 9 AM MDT Tuesday. * IMPACTS...The dangerously cold wind chills could cause frostbite on exposed skin in as little as 10 minutes. PRECAUTIONARY/PREPAREDNESS ACTIONS... Avoid outside activities if possible. When outside, make sure you wear appropriate clothing, a hat, and gloves. && $$ WYZ106-107-111-116>118-271215- /O.EXA.KCYS.WC.Y.0002.000000T0000Z-201027T1500Z/ Central Laramie Range and Southwest Platte County- East Platte County-Southwest Carbon County-South Laramie Range- South Laramie Range Foothills-Central Laramie County- Including the cities of Bordeaux, Wheatland, Guernsey, Baggs, Buford, Pumpkin Vine, Vedauwoo, Whitaker, Federal, Horse Creek, and Cheyenne 804 PM MDT Mon Oct 26 2020 ...WIND CHILL ADVISORY IN EFFECT UNTIL 9 AM MDT TUESDAY... * WHAT...Very cold wind chills. Wind chills as low as 25 below zero. * WHERE...Interstate 80 Summit as well as southeast Wyoming plains to include Cheyenne...Wheatland...Chugwater...Torrington and Pine Bluffs. * WHEN...Through 9 AM MDT Tuesday. * IMPACTS...The cold wind chills could cause frostbite on exposed skin in as little as 30 minutes. PRECAUTIONARY/PREPAREDNESS ACTIONS... Use caution while traveling outside. Wear appropriate clothing, a hat, and gloves. && $$ NEZ002-003-019>021-054-055-095-096-WYZ105-108>110-113-119-271215- /O.CON.KCYS.WC.Y.0002.000000T0000Z-201027T1500Z/ Dawes-Box Butte-Scotts Bluff County-Banner County-Morrill- Kimball County-Cheyenne-North Sioux-South Sioux-Shirley Basin- Goshen County-Central Carbon County-North Snowy Range Foothills- Upper North Platte River Basin-East Laramie County- Including the cities of Chadron, Chadron St Park, Alliance, Scottsbluff, Gering, Harrisburg, Angora, Bridgeport, Bayard, Redington, Kimball, Brownson, Sidney, Harrison, Agate, Medicine Bow, Shirley Basin, Torrington, Rawlins, Arlington, Elk Mountain, Saratoga, Encampment, and Pine Bluffs 804 PM MDT Mon Oct 26 2020 ...WIND CHILL ADVISORY REMAINS IN EFFECT UNTIL 9 AM MDT TUESDAY... * WHAT...Very cold wind chills expected. Wind chills as low as 25 below zero. * WHERE...Lower elevations of Carbon county, far eastern Wyoming and the Nebraska Panhandle. * WHEN...From 8 PM this evening to 9 AM MDT Tuesday. * IMPACTS...The cold wind chills could cause frostbite on exposed skin in as little as 30 minutes. PRECAUTIONARY/PREPAREDNESS ACTIONS... Use caution while traveling outside. Wear appropriate clothing, a hat, and gloves. && $$
245 WWUS45 KCYS 270827 WSWCYS URGENT - WINTER WEATHER MESSAGE National Weather Service Cheyenne WY 227 AM MDT Tue Oct 27 2020 ...VERY COLD WINDCHILLS CONTINUE THROUGH TUESDAY MORNING... WYZ115-271500- /O.CON.KCYS.WC.W.0002.000000T0000Z-201027T1500Z/ Laramie Valley- Including the cities of Bosler and Laramie 227 AM MDT Tue Oct 27 2020 ...WIND CHILL WARNING REMAINS IN EFFECT UNTIL 9 AM MDT THIS MORNING... * WHAT...Dangerously cold wind chills expected. Wind chills as low as 35 below zero. * WHERE...Laramie Valley. * WHEN...Until 9 AM MDT Tuesday. * IMPACTS...The dangerously cold wind chills could cause frostbite on exposed skin in as little as 10 minutes. PRECAUTIONARY/PREPAREDNESS ACTIONS... Avoid outside activities if possible. When outside, make sure you wear appropriate clothing, a hat, and gloves. && $$ NEZ002-003-019>021-054-055-095-096-WYZ105>111-113-116>119-271500- /O.CON.KCYS.WC.Y.0002.000000T0000Z-201027T1500Z/ Dawes County-Box Butte County-Scotts Bluff County-Banner County- Morrill County-Kimball County-Cheyenne County- Northern Sioux County-Southern Sioux County-Shirley Basin- Central Laramie Range and Southwest Platte County- East Platte County-Goshen County-Central Carbon County- North Snowy Range Foothills-Southwest Carbon County- Upper North Platte River Basin-South Laramie Range- South Laramie Range Foothills-Central Laramie County- East Laramie County- Including the cities of Chadron, Chadron St Park, Alliance, Scottsbluff, Gering, Harrisburg, Angora, Bridgeport, Bayard, Redington, Kimball, Sidney, Brownson, Harrison, Agate, Medicine Bow, Shirley Basin, Bordeaux, Wheatland, Guernsey, Torrington, Rawlins, Arlington, Elk Mountain, Baggs, Saratoga, Encampment, Buford, Pumpkin Vine, Vedauwoo, Whitaker, Federal, Horse Creek, Cheyenne, and Pine Bluffs 227 AM MDT Tue Oct 27 2020 ...WIND CHILL ADVISORY REMAINS IN EFFECT UNTIL 9 AM MDT THIS MORNING... * WHAT...Very cold wind chills expected. Wind chills as low as 25 below zero. * WHERE...Lower elevations of Carbon county, far southeastern Wyoming and the Nebraska Panhandle. * WHEN...Until 9 AM MDT Tuesday. * IMPACTS...The cold wind chills could cause frostbite on exposed skin in as little as 30 minutes. PRECAUTIONARY/PREPAREDNESS ACTIONS... Use caution while traveling outside. Wear appropriate clothing, a hat, and gloves. && $$ MB
584 WWUS45 KCYS 271455 WSWCYS URGENT - WINTER WEATHER MESSAGE National Weather Service Cheyenne WY 855 AM MDT Tue Oct 27 2020 ...WIND CHILL ADVISORY AND WARNING WILL EXPIRE AT 9 AM MDT... WYZ115-271600- /O.EXP.KCYS.WC.W.0002.000000T0000Z-201027T1500Z/ Laramie Valley- Including the cities of Bosler and Laramie 855 AM MDT Tue Oct 27 2020 ...WIND CHILL WARNING WILL EXPIRE AT 9 AM MDT THIS MORNING... Temperatures will warm into the single digits and teens during the next few hours. Wind chill readings will rise above zero as well. $$ NEZ002-003-019>021-054-055-095-096-WYZ105>111-113-116>119-271600- /O.EXP.KCYS.WC.Y.0002.000000T0000Z-201027T1500Z/ Dawes-Box Butte-Scotts Bluff County-Banner County-Morrill- Kimball County-Cheyenne-North Sioux-South Sioux-Shirley Basin- Central Laramie Range and Southwest Platte County- East Platte County-Goshen County-Central Carbon County- North Snowy Range Foothills-Southwest Carbon County- Upper North Platte River Basin-South Laramie Range- South Laramie Range Foothills-Central Laramie County- East Laramie County- Including the cities of Chadron, Chadron St Park, Alliance, Scottsbluff, Gering, Harrisburg, Angora, Bridgeport, Bayard, Redington, Kimball, Brownson, Sidney, Harrison, Agate, Medicine Bow, Shirley Basin, Bordeaux, Wheatland, Guernsey, Torrington, Rawlins, Arlington, Elk Mountain, Baggs, Saratoga, Encampment, Buford, Pumpkin Vine, Vedauwoo, Whitaker, Federal, Horse Creek, Cheyenne, and Pine Bluffs 855 AM MDT Tue Oct 27 2020 ...WIND CHILL ADVISORY WILL EXPIRE AT 9 AM MDT THIS MORNING... Temperatures will warm into the single digits and teens during the next few hours. Wind chill readings will rise above zero as well. $$
The office that day
Everything else NWS Cheyenne, WY issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Oct 25, 8:50 PM MDT | Wind Chill Advisory | CYS | Albany, Carbon, Converse, Laramie, Platte | 12 hr |
| Oct 26, 2:34 PM MDT | Wind Chill Advisory | CYS | Albany, Carbon, Goshen, Laramie, Platte | 18 hr |
Nearby
Wind Chill Warnings in Wyoming, 2020Every wind chill 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.