Alert archive / Idaho / Winter Storm Warnings in 2019

Winter Storm Warning 12, NWS Spokane, WA

December 11, 20196 counties in Idaho

NWS Spokane, WA issued this winter storm warning at Dec 11, 2019, 3:03 AM PST for 6 counties in Idaho. It took effect at Dec 11, 2019, 1:00 PM PST. It was in force for 45 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: Dec 11, 2019, 3:03 AM PST (11:03 UTC)
In effect from: Dec 11, 2019, 1:00 PM PST
Expired: Dec 13, 2019, 10:00 AM PST
In force: 45 hr
Issued by: NWS Spokane, WA

Counties Benewah County, ID, Bonner County, ID, Boundary County, ID, Kootenai County, ID, Latah County, ID, Shoshone County, ID

The radar

The Spokane radar (KOTX), 84 km from the middle of the area, began a volume at 11:05 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 Spokane, WA wrote its last area forecast discussion before this winter storm warning went out at Dec 11, 2:40 AM PST, 23 minutes earlier.

Area forecast discussion, Dec 11, 2:40 AM PST, 23 minutes before

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Hazardous weather outlook, Dec 10, 6:03 AM PST, 21 hours before

Hazardous Weather Outlook
National Weather Service Spokane WA
603 AM PST Tue Dec 10 2019

IDZ002-003-026-027-WAZ031>036-041-043-044-111415-
Coeur d'Alene Area-Idaho Palouse-Lewiston Area-
Lewis and Southern Nez Perce Counties-Northeast Blue Mountains-
Lower Garfield and Asotin Counties-Washington Palouse-
Moses Lake Area-Upper Columbia Basin-Spokane Area-Wenatchee Area-
Okanogan Valley-Waterville Plateau-
603 AM PST Tue Dec 10 2019

This Hazardous Weather Outlook is for portions of North Idaho...
North Central Idaho...Central Washington...East Central
Washington...North Central Washington...Northeast Washington and
Southeast Washington.

.DAY ONE...TODAY AND TONIGHT

No hazardous weather is expected at this time.

.DAYS TWO THROUGH SEVEN...WEDNESDAY THROUGH MONDAY

A weak storm system Tonight into Wednesday morning will
bring light snow accumulations of a dusting to up to one inch of
snow. This could make for slippery conditions for the Wednesday
morning commute period.

A wetter storm system Wednesday night may bring a wet snow to the
higher elevations and benches before turning to rain by Thursday
morning. This may make for wintry travel conditions by early
Thursday morning.

IDZ001-004-WAZ037-038-042-111415-
Northern Panhandle-Central Panhandle Mountains-
Northeast Mountains-Okanogan Highlands-
East Slopes Northern Cascades-
603 AM PST Tue Dec 10 2019

This Hazardous Weather Outlook is for portions of North Idaho...
North Central Washington and Northeast Washington.

.DAY ONE...TODAY AND TONIGHT

Hazardous weather is not expected at this time.

.DAYS TWO THROUGH SEVEN...WEDNESDAY THROUGH MONDAY

A weak storm system Tuesday night into Wednesday morning will
bring light snow amounts of one to two inches. This could make for
slippery conditions for the Wednesday morning commute.

A wetter storm system has the potential to produce moderate to
heavy mountain snow accumulations and light wet snow in the
valleys beginning Wednesday night and continuing into Friday.
Travelers should stay abreast of this changing forecast for the
potential for wintry driving conditions through mountain passes
Thursday night and Friday.

The office that day

Everything else NWS Spokane, WA issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Dec 11, 3:03 AM PST	Winter Weather Advisory	OTX	Ferry, Okanogan, Pend Oreille, Spokane, Stevens	28 hr

Nearby

Winter Storm Warnings in Idaho, 2019 Winter Storm Warnings in Washington, 2019 Every winter storm warning in 2019

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.