Alert archive / Wyoming / Winter Storm Warnings in 2020

Winter Storm Warning 1, NWS Riverton, WY

January 12, 20204 counties in Wyoming

NWS Riverton, WY issued this winter storm warning at Jan 12, 2020, 9:58 AM MST for 4 counties in Wyoming. It was in force for 19 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: Jan 12, 2020, 9:58 AM MST (16:58 UTC)
Expired: Jan 13, 2020, 5:00 AM MST
In force: 19 hr
Issued by: NWS Riverton, WY

Counties Fremont County, WY, Lincoln County, WY, Sublette County, WY, Teton County, WY

The radar

The Riverton/Lander radar (KRIW), 120 km from the middle of the area, began a volume at 16:57 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 storm warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS Riverton, WY wrote its last area forecast discussion before this winter storm warning went out at Jan 11, 3:58 PM MST, 18 hours earlier.

Area forecast discussion, Jan 11, 3:58 PM MST, 18 hours before

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The office that day

Everything else NWS Riverton, WY issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Jan 12, 9:58 AM MST	Winter Weather Advisory	RIW	Lincoln, Park, Sublette, Teton	19 hr

Nearby

Winter Storm Warnings in Wyoming, 2020 Every winter storm 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; radar from the NEXRAD Level II archive.