An arctic front briefly dropped down into eastern Washington and north Idaho on January 13th and 14th. Light snow accompanied this frontal passage with generally 1 to 3 inches of snow accumulation around the region.
Every event with a place to put it; 2 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 OTX wrote it up.
An arctic front briefly dropped down into eastern Washington and north Idaho on January 13th and 14th. Light snow accompanied this frontal passage with generally 1 to 3 inches of snow accumulation around the region. However the front stalled along the Washington/Oregon border and promoted an extended period of light snow which left a swath of heavier accumulations From the Blue Mountains through the Lewiston, ID area.
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 Spokane, WA wrote its last area forecast discussion before the first event at Jan 13, 2:48 PM PST, 1 hour 12 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.
The COOP observer located 14 miles south of Asotin recorded 13.0 inches of snow accumulation form this storm.
The Bluewood Ski Resort reported 22 inches of snow accumulation form this storm.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in Washington in 2020Every state in 2020This day in weather historyWarnings in Washington, January 2020
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 2026-09-30. Each event’s entry at NCEI: 871066, 871067.