Alert archive / Idaho / Winter Storm Warnings in 2022

Winter Storm Warning 14, NWS Spokane, WA

December 19, 20225 counties in Washington; 6 counties in Idaho

NWS Spokane, WA issued this winter storm warning at Dec 19, 2022, 2:07 PM PST for 5 counties in Washington; 6 counties in Idaho. It took effect at Dec 19, 2022, 9:23 PM PST. It was in force for 31 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 19, 2022, 2:07 PM PST (22:07 UTC)
In effect from
Dec 19, 2022, 9:23 PM PST
Expired
Dec 21, 2022, 4:00 AM PST
In force
31 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, Asotin County, WA, Chelan County, WA, Garfield County, WA, Spokane County, WA, Whitman County, WA

The radar

The Spokane radar (KOTX), 46 km from the middle of the area, began a volume at 22:08 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.

The nearest sounding before it

Great_falls, MT (KTFX), launched 12:00Z, 10.1 hours before the alert went out and 497 km from the middle of its area. This is the routine balloon launch nearest before it, the air the forecaster had in hand, not a measurement taken for the alert.

Skew-T log-pSkew-T log-p diagram, Great_falls, MT at 12:00Z on 2022-12-19Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 km2 km3 km6 km9 km12 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Great_falls, MT at 12:00Z on 2022-12-19The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 142 square meters per square second.1939587897117Sfc1 km3 km6 km9 kmRMLM
The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.
Mixed-layer CAPE
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
896 m above ground
0-6 km bulk shear
74 kt
0-1 km storm-relative helicity
142 m²/s²
0-3 km storm-relative helicity
503 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

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 19, 10:11 AM PST, 3 hours 56 minutes earlier.

Area forecast discussion, Dec 19, 10:11 AM PST, 3 hours 56 minutes before
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The office that day

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

IssuedProductOfficeCountiesLasted
Dec 18, 5:52 PM PSTWind Chill AdvisoryOTXAdams, Douglas, Grant, Lincoln, Okanogan44 hr
Dec 19, 9:56 AM PSTWind Chill WatchOTXAdams, Douglas, Ferry, Grant, Lincoln, Okanogan and 4 more28 hr
Dec 19, 2:07 PM PSTWinter Weather AdvisoryOTXAsotin, Chelan, Douglas, Garfield, Lincoln, Okanogan and 3 more38 hr

Nearby

Winter Storm Warnings in Idaho, 2022Winter Storm Warnings in Washington, 2022Every winter storm warning in 2022

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.