A strong upper level trough slid down the coast of British Columbia facilitating a period of strong southerly winds along Blue Mountains foothills, and heavy snow across the mountain areas between November 29th and December 1st. Wind gusts of 60-65mph were measured along the foothills of the northern Blue Mountains and snow accumulations of up to 22 inches were reported in the Washington…
Every event with a place to put it; 1 filed by county or forecast zone are drawn at its center, in a lighter ring. Tap one for its entry below.
Deaths and injuries are direct and indirect together, as the offices filed them. Damage is property and crops in the dollars of the year, not adjusted for inflation, and only where an office estimated it.
The episode as NWS PDT wrote it up.
A strong upper level trough slid down the coast of British Columbia facilitating a period of strong southerly winds along Blue Mountains foothills, and heavy snow across the mountain areas between November 29th and December 1st. Wind gusts of 60-65mph were measured along the foothills of the northern Blue Mountains and snow accumulations of up to 22 inches were reported in the Washington Cascades, and up to 24 inches in portions of the northern Blue Mountains of Oregon and Washington.
The local office's own words before the first event, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.
NWS Pendleton, OR wrote its last area forecast discussion before the first event at Nov 29, 9:56 AM PST, 3 hours 4 minutes earlier.
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</html>The national radar mosaic for the moment the first event began.
2 heavy snow. Local standard time, as filed.
An NWS Employee 9 miles north of White Salmon reported 14 inches of new snow at 0440 on Nov. 30th.
A trained spotter 1 mile north northwest of Glenwood, WA measured 22 inches of new snow in a 24 hour period ending at 0610 on Nov. 30th. A trained spotter 1 mile north of Trout Lake measured 20 inches of new snow in a 24 hour period ending at 0750 on Nov. 30th. A member of the public 19 miles east northeast of Cle Elum, WA reported 13 inches of new snow at 0842 on Nov. 30th.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in Washington in 2022Every state in 2022This day in weather historyWarnings in Washington, November 2022
NOAA National Centers for Environmental Information, Storm Events Database, compiled from the National Weather Service’s monthly Storm Data. Complete through 2026-06; NCEI adds each month about 75 days after it ends and revises past years a few times a year. Rebuilt 2026-10-01. Each event’s entry at NCEI: 1067539, 1067540.