Alert archive / Wyoming / Winter Weather Advisories in 2021
Winter Weather Advisory 40, NWS Cheyenne, WY
NWS Cheyenne, WY issued this winter weather advisory at Dec 8, 2021, 2:15 PM MST for 5 counties in Wyoming; Banner County, Morrill County, Scotts Bluff County, Nebraska. It took effect at Dec 9, 2021, 5:00 AM MST. It was in force for 34 hr.
The area
The counties it named.
The facts
- Issued
- Dec 8, 2021, 2:15 PM MST (21:15 UTC)
- In effect from
- Dec 9, 2021, 5:00 AM MST
- Expired
- Dec 10, 2021, 2:48 PM MST
- In force
- 34 hr
- Issued by
- NWS Cheyenne, WY
Counties Banner County, NE, Morrill County, NE, Scotts Bluff County, NE, Albany County, WY, Carbon County, WY, Converse County, WY, Laramie County, WY, Platte County, WY
The radar
The Cheyenne radar (KCYS), 79 km from the middle of the area, began a volume at 21:14 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 forecasters said that day
The local office's own words before this winter weather advisory went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.
NWS Cheyenne, WY wrote its last area forecast discussion before this winter weather advisory went out at Dec 8, 11:07 AM MST, 3 hours 8 minutes earlier.
Area forecast discussion, Dec 8, 11:07 AM MST, 3 hours 8 minutes before
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</html>Hazardous weather outlook, Dec 8, 5:31 AM MST, 8 hours 44 minutes before
Hazardous Weather Outlook National Weather Service Cheyenne WY 531 AM MST Wed Dec 8 2021 WYZ103>105-109-111-113-115-091245- North Laramie Range-Ferris/Seminoe/Shirley Mountains- Shirley Basin-Central Carbon County-Southwest Carbon County- Upper North Platte River Basin-Laramie Valley- 531 AM MST Wed Dec 8 2021 This hazardous weather outlook is for portions of south central Wyoming and southeast Wyoming. .DAY ONE...TODAY AND TONIGHT No hazardous weather is expected at this time. .DAYS TWO THROUGH SEVEN...THURSDAY THROUGH TUESDAY Widespread snowfall expected beginning early Thursday morning continuing into Friday. See Winter Storm Watch product for further details. .Spotter information statement... Spotter activation will not be needed. NEZ002-003-019>021-054-055-095-096-WYZ102-108-118-119-091245- Dawes County-Box Butte County-Scotts Bluff County-Banner County- Morrill County-Kimball County-Cheyenne County- Northern Sioux County-Southern Sioux County-Niobrara County- Goshen County-Central Laramie County-East Laramie County- 531 AM MST Wed Dec 8 2021 This hazardous weather outlook is for portions of panhandle Nebraska...east central Wyoming and southeast Wyoming. .DAY ONE...TODAY AND TONIGHT No hazardous weather is expected at this time. .DAYS TWO THROUGH SEVEN...THURSDAY THROUGH TUESDAY Widespread snowfall expected beginning late Thursday afternoon continuing through Friday afternoon. See Winter Storm Watch product for further details. .Spotter information statement... Spotter activation will not be needed. WYZ101-106-107-110-116-117-091245- Converse County Lower Elevations- Central Laramie Range and Southwest Platte County- East Platte County-North Snowy Range Foothills- South Laramie Range-South Laramie Range Foothills- 531 AM MST Wed Dec 8 2021 This hazardous weather outlook is for portions of east central Wyoming...south central Wyoming and southeast Wyoming. .DAY ONE...TODAY AND TONIGHT Strong winds with gusts 65 to 75 MPH possible today and tonight, especially near southeast Wyoming wind-prone areas at Arlington and Bordeaux. See High Wind Warning product for further details. .DAYS TWO THROUGH SEVEN...THURSDAY THROUGH TUESDAY Widespread snowfall expected beginning Thursday morning continuing into Friday. See Winter Storm Watch product for further details. .Spotter information statement... Spotter activation will not be needed. WYZ112-114-091245- Sierra Madre Range-Snowy Range- 531 AM MST Wed Dec 8 2021 This hazardous weather outlook is for portions of south central Wyoming. .DAY ONE...TODAY AND TONIGHT Light snowfall possible early this evening becoming heavier later tonight. .DAYS TWO THROUGH SEVEN...THURSDAY THROUGH TUESDAY Widespread snowfall expected to continue into Friday. Storm total snow accumulations of 1 to 2 feet possible. See Winter Storm Watch product for further details. .Spotter information statement... Spotter activation will not be needed.
In the hours before
Local storm report, Dec 8, 11:41 AM MST, 2 hours 34 minutes before
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</html>Local storm report, Dec 8, 11:42 AM MST, 2 hours 33 minutes before
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</html>The office that day
Everything else NWS Cheyenne, WY issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Dec 8, 10:37 AM MST | Winter Storm Warning | CYS | Albany, Carbon, Converse, Goshen, Laramie, Niobrara and 1 more | 52 hr |
Nearby
Winter Weather Advisories in Wyoming, 2021Winter Weather Advisories in Nebraska, 2021Every winter weather 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; radar from the NEXRAD Level II archive.