Alert archive / Montana / Wind Chill Advisories in 2021

Wind Chill Advisory 11, NWS Glasgow, MT

December 16, 202112 counties in Montana

NWS Glasgow, MT issued this wind chill advisory at Dec 16, 2021, 1:31 PM MST for 12 counties in Montana. It took effect at Dec 16, 2021, 11:00 PM MST. It was in force for 36 hr.

The area

The counties it named.

The facts

Issued: Dec 16, 2021, 1:31 PM MST (20:31 UTC)
In effect from: Dec 16, 2021, 11:00 PM MST
Expired: Dec 18, 2021, 11:00 AM MST
In force: 36 hr
Issued by: NWS Glasgow, MT

Counties Daniels County, MT, Dawson County, MT, Garfield County, MT, McCone County, MT, Petroleum County, MT, Phillips County, MT, Prairie County, MT, Richland County, MT, Roosevelt County, MT, Sheridan County, MT, Valley County, MT, Wibaux County, MT

The radar

The Glasgow radar (KGGW), 77 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.

What forecasters said that day

The local office's own words before this wind chill advisory went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS Glasgow, MT wrote its last area forecast discussion before this wind chill advisory went out at Dec 15, 1:34 PM MST, 23 hours 57 minutes earlier.

Area forecast discussion, Dec 15, 1:34 PM MST, 23 hours 57 minutes before

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The office that day

Everything else NWS Glasgow, MT issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Dec 16, 1:31 PM MST	Winter Weather Advisory	GGW	Daniels, Roosevelt, Sheridan, Valley	27 hr

Nearby

Wind Chill Advisories in Montana, 2021 Every 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; radar from the NEXRAD Level II archive.