Alert archive / Wyoming / Winter Weather Advisories in 2021

Winter Weather Advisory 25, NWS Cheyenne, WY

April 6, 20214 counties in Wyoming; Dawes County, Sioux County, Nebraska

NWS Cheyenne, WY issued this winter weather advisory at Apr 6, 2021, 2:55 AM MDT for 4 counties in Wyoming; Dawes County, Sioux County, Nebraska. It took effect at Apr 6, 2021, 11:00 AM MDT. It was in force for 15 hr.

The area

The counties it named.

The facts

Issued
Apr 6, 2021, 2:55 AM MDT (08:55 UTC)
In effect from
Apr 6, 2021, 11:00 AM MDT
Expired
Apr 7, 2021, 2:09 AM MDT
In force
15 hr
Issued by
NWS Cheyenne, WY

Counties Dawes County, NE, Sioux County, NE, Albany County, WY, Converse County, WY, Niobrara County, WY, Platte County, WY

The radar

The Cheyenne radar (KCYS), 151 km from the middle of the area, began a volume at 09:00 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 Apr 6, 12:45 AM MDT, 2 hours 10 minutes earlier.

Area forecast discussion, Apr 6, 12:45 AM MDT, 2 hours 10 minutes before
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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.