Alert archive / Nebraska / Wind Chill Advisories in 2021
Wind Chill Advisory 1, NWS Cheyenne, WY
NWS Cheyenne, WY issued this wind chill advisory at Feb 8, 2021, 1:52 PM MST for Converse County, Niobrara County, Wyoming; Box Butte County, Dawes County, Sioux County, Nebraska. It took effect at Feb 8, 2021, 11:00 PM MST. It was in force for 10 hr.
The area
The counties it named.
The facts
- Issued
- Feb 8, 2021, 1:52 PM MST (20:52 UTC)
- In effect from
- Feb 8, 2021, 11:00 PM MST
- Expired
- Feb 9, 2021, 9:00 AM MST
- In force
- 10 hr
- Issued by
- NWS Cheyenne, WY
Counties Box Butte County, NE, Dawes County, NE, Sioux County, NE, Converse County, WY, Niobrara County, WY
The radar
The Cheyenne radar (KCYS), 184 km from the middle of the area, began a volume at 20:54 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
Rapid City, SD (KUNR), launched 12:00Z, 8.9 hours before the alert went out and 178 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
- 722 m above ground
- 0-6 km bulk shear
- 91 kt
- 0-1 km storm-relative helicity
- 51 m²/s²
- 0-3 km storm-relative helicity
- 103 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
662 WWUS45 KCYS 082052 WSWCYS URGENT - WINTER WEATHER MESSAGE National Weather Service Cheyenne WY 152 PM MST Mon Feb 8 2021 ...VERY COLD WIND CHILL TEMPERATURES TONIGHT AND EARLY TUESDAY MORNING... NEZ002-003-095-096-WYZ101-102-091600- /O.NEW.KCYS.WC.Y.0001.210209T0600Z-210209T1600Z/ Dawes-Box Butte-North Sioux-South Sioux- Converse County Lower Elevations-Niobrara County- Including the cities of Chadron, Chadron St Park, Alliance, Harrison, Agate, Bill, Douglas, Deer Creek, Glenrock, Lusk, and Redbird 152 PM MST Mon Feb 8 2021 ...WIND CHILL ADVISORY IN EFFECT FROM 11 PM THIS EVENING TO 9 AM MST TUESDAY... * WHAT...Very cold wind chills expected. Wind chills as low as 30 below zero. * WHERE...Converse County Lower Elevations, Niobrara, North Sioux, South Sioux, Dawes, and Box Butte Counties. This includes Alliance, Chadron, Douglas, Glenrock, and Lusk. * WHEN...From 11 PM this evening to 9 AM MST Tuesday morning. * IMPACTS...The very 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. && $$
3 follow-up statements
448 WWUS45 KCYS 082101 WSWCYS URGENT - WINTER WEATHER MESSAGE National Weather Service Cheyenne WY 201 PM MST Mon Feb 8 2021 ...VERY COLD WIND CHILL TEMPERATURES TONIGHT AND EARLY TUESDAY MORNING... ...SNOW AND BLOWING SNOW TUESDAY AND TUESDAY NIGHT FOR THE SOUTHERN WYOMING MOUNTAINS... WYZ112-114-091600- /O.NEW.KCYS.WW.Y.0008.210209T1200Z-210210T1200Z/ Sierra Madre Range-Snowy Range- Including the cities of Centennial and Albany 201 PM MST Mon Feb 8 2021 ...WINTER WEATHER ADVISORY IN EFFECT FROM 5 AM TUESDAY TO 5 AM MST WEDNESDAY... * WHAT...Snow and blowing snow expected. Total snow accumulations of 6 to 12 inches. Winds gusting as high as 50 mph. * WHERE...Sierra Madre and Snowy Range Mountains. * WHEN...From 5 AM Tuesday to 5 AM MST Wednesday. * IMPACTS...Dangerous travel due to icy, snow packed roads and very low visibilities in falling and blowing snow. PRECAUTIONARY/PREPAREDNESS ACTIONS... Slow down and use caution while traveling. The latest road conditions for the state you are calling from can be obtained by calling 5 1 1. && $$ NEZ002-003-095-096-WYZ101-102-091600- /O.CON.KCYS.WC.Y.0001.210209T0600Z-210209T1600Z/ Dawes-Box Butte-North Sioux-South Sioux- Converse County Lower Elevations-Niobrara County- Including the cities of Chadron, Chadron St Park, Alliance, Harrison, Agate, Bill, Douglas, Deer Creek, Glenrock, Lusk, and Redbird 201 PM MST Mon Feb 8 2021 ...WIND CHILL ADVISORY REMAINS IN EFFECT FROM 11 PM THIS EVENING TO 9 AM MST TUESDAY... * WHAT...Very cold wind chills expected. Wind chills as low as 30 below zero. * WHERE...Converse County Lower Elevations, Niobrara, North Sioux, South Sioux, Dawes, and Box Butte Counties. This includes Alliance, Chadron, Douglas, Glenrock, and Lusk. * WHEN...From 11 PM this evening to 9 AM MST Tuesday morning. * IMPACTS...The very 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. && $$
031 WWUS45 KCYS 090936 WSWCYS URGENT - WINTER WEATHER MESSAGE National Weather Service Cheyenne WY 236 AM MST Tue Feb 9 2021 ...VERY COLD WIND CHILL TEMPERATURES THROUGH MID MORNING NORTH OF A DOUGLAS TO ALLIANCE LINE... ...SNOW AND BLOWING SNOW TODAY AND TONIGHT FOR THE SNOWY AND SIERRA MADRE RANGES... WYZ112-114-100000- /O.CON.KCYS.WW.Y.0008.210209T1200Z-210210T1200Z/ Sierra Madre Range-Snowy Range- Including the cities of Centennial and Albany 236 AM MST Tue Feb 9 2021 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 5 AM MST WEDNESDAY... * WHAT...Snow and blowing snow expected. Total snow accumulations of 6 to 12 inches. Winds gusting as high as 50 mph. * WHERE...Sierra Madre and Snowy Range Mountains. * WHEN...From 5 AM today to 5 AM Wednesday. * IMPACTS...Dangerous travel due to icy, snow packed roads and very low visibilities in falling and blowing snow. PRECAUTIONARY/PREPAREDNESS ACTIONS... Slow down and use caution while traveling. The latest road conditions for the state you are calling from can be obtained by calling 5 1 1. && $$ NEZ002-003-095-096-WYZ101-102-091600- /O.CON.KCYS.WC.Y.0001.000000T0000Z-210209T1600Z/ Dawes-Box Butte-North Sioux-South Sioux- Converse County Lower Elevations-Niobrara County- Including the cities of Chadron, Chadron St Park, Alliance, Harrison, Agate, Bill, Douglas, Deer Creek, Glenrock, Lusk, and Redbird 236 AM MST Tue Feb 9 2021 ...WIND CHILL ADVISORY REMAINS IN EFFECT UNTIL 9 AM MST THIS MORNING... * WHAT...Very cold wind chills expected. Wind chills as low as 30 degrees below zero. * WHERE...Converse County Lower Elevations, Niobrara, North Sioux, South Sioux, Dawes, and Box Butte Counties. This includes Alliance, Chadron, Douglas, Glenrock, and Lusk. * WHEN...Until 9 AM this morning. * IMPACTS...The very 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. && $$ Rubin
252 WWUS45 KCYS 091602 WSWCYS URGENT - WINTER WEATHER MESSAGE National Weather Service Cheyenne WY 902 AM MST Tue Feb 9 2021 ...COLD TEMPS IN THE TEENS AND SINGLE DIGIT CONTINUE NORTH OF A DOUGLAS TO ALLIANCE LINE TODAY... ...SNOW AND BLOWING SNOW TODAY AND TONIGHT FOR THE SNOWY AND SIERRA MADRE RANGES... NEZ002-003-095-096-WYZ101-102-091715- /O.EXP.KCYS.WC.Y.0001.000000T0000Z-210209T1600Z/ Dawes-Box Butte-North Sioux-South Sioux- Converse County Lower Elevations-Niobrara County- Including the cities of Chadron, Chadron St Park, Alliance, Harrison, Agate, Bill, Douglas, Deer Creek, Glenrock, Lusk, and Redbird 902 AM MST Tue Feb 9 2021 ...WIND CHILL ADVISORY WILL EXPIRE AT 9 AM MST THIS MORNING... Wind chill temperatures are still cold today, around 15 below zero, but this is above criteria; therefore, the Advisory has been expired. Will be issuing another for tonight and beyond as it's looking like this cold air mass will hover over the region through next week. $$ WYZ112-114-100015- /O.CON.KCYS.WW.Y.0008.000000T0000Z-210210T1200Z/ Sierra Madre Range-Snowy Range- Including the cities of Centennial and Albany 902 AM MST Tue Feb 9 2021 ...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 5 AM MST WEDNESDAY... * WHAT...Snow and blowing snow expected. Total snow accumulations of 6 to 12 inches. Winds gusting as high as 50 mph. * WHERE...Sierra Madre and Snowy Range Mountains. * WHEN...Now through 5 AM Wednesday. * IMPACTS...Dangerous travel due to icy, snow packed roads and very low visibilities in falling and blowing snow. PRECAUTIONARY/PREPAREDNESS ACTIONS... Slow down and use caution while traveling. The latest road conditions for the state you are calling from can be obtained by calling 5 1 1. && $$ Braun
The office that day
Everything else NWS Cheyenne, WY issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Feb 8, 2:01 PM MST | Winter Weather Advisory | CYS | Albany, Carbon | 37 hr |
Nearby
Wind Chill Advisories in Nebraska, 2021Wind Chill Advisories in Wyoming, 2021Every wind chill advisory 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.