A frontal boundary followed by a large area of low pressure sitting just off the coast facilitated heavy snow over the Cascades from Oct 31st to Nov 1st.
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 PQR wrote it up.
A frontal boundary followed by a large area of low pressure sitting just off the coast facilitated heavy snow over the Cascades from Oct 31st to Nov 1st.
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 Portland, OR wrote its last area forecast discussion before the first event at Oct 31, 2:51 PM PST, 9 hours 9 minutes earlier.
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</html>The national radar mosaic for the moment the first event began.
1 heavy snow. Local standard time, as filed.
The Swift Creek SNOTEL at 4400 ft recorded 14 inches of snow between 0600 PST Oct 30th and 0000 PST Nov 1st. Several other SNOTELS in the vicinity recorded 12+ inches of snow in a similar time period as well.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in Washington in 2024Every state in 2024This day in weather historyWarnings in Washington, November 2024
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: 1221908.