Alert archive / Washington / River Flood Warnings in 2025

River Flood Warning 39, NWS Seattle, WA

December 9, 2025King County, Washington

NWS Seattle, WA issued this river flood warning at Dec 9, 2025, 3:16 AM PST for King County, Washington. It took effect at Dec 9, 2025, 6:57 AM PST. It was in force for 11 days.

The area

The counties it named.

The facts

Issued
Dec 9, 2025, 3:16 AM PST (11:16 UTC)
In effect from
Dec 9, 2025, 6:57 AM PST
Expired
Dec 20, 2025, 11:39 AM PST
In force
11 days
Issued by
NWS Seattle, WA
Area
Storm-based polygon
Flood severity
Minor

County King County, WA

The radar

The Seattle radar (KATX), 92 km from the middle of the area, began a volume at 11:20 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 river

Written for the forecast point Green River (WA) near Auburn (AUBW1). The gauge peaked at 68.66 ft at Dec 13, 2025, 8:00 AM PST.

626466687012/0912/1012/1112/1212/1312/1412/1512/1612/1712/1812/1912/2012/21

This gauge today: stage, forecast and historic crests

Stage from the USGS instantaneous record for site 12113000, one reading an hour, from a day before the product to a day after it ended. Flood stages are today's.

What forecasters said that day

The local office's own words before this river flood warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS Seattle, WA wrote its last area forecast discussion before this river flood warning went out at Dec 9, 1:33 AM PST, 1 hour 43 minutes earlier.

Area forecast discussion, Dec 9, 1:33 AM PST, 1 hour 43 minutes before
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The office that day

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

IssuedProductOfficeCountiesLasted
Dec 8, 4:04 PM PSTRiver Flood WarningSEWLewis67 hr
Dec 8, 4:04 PM PSTRiver Flood WarningSEWLewis5 days
Dec 8, 4:07 PM PSTAreal Flood AdvisorySEWGrays Harbor, Lewis, Mason, Pierce, Thurston7 hr
Dec 8, 4:35 PM PSTRiver Flood WarningSEWLewis, Pierce72 hr
Dec 8, 4:44 PM PSTRiver Flood WarningSEWPierce3 days
Dec 8, 4:44 PM PSTRiver Flood WarningSEWPierce71 hr
Dec 8, 4:44 PM PSTRiver Flood WarningSEWPierce3 days
Dec 8, 5:18 PM PSTRiver Flood WarningSEWSnohomish4 days
Dec 8, 5:18 PM PSTRiver Flood WarningSEWSnohomish66 hr
Dec 8, 6:16 PM PSTRiver Flood WarningSEWKing21 days
Dec 8, 6:16 PM PSTRiver Flood WarningSEWKing68 hr
Dec 8, 7:23 PM PSTRiver Flood WarningSEWClallam4 hr
Dec 8, 7:56 PM PSTRiver Flood WarningSEWKing5 days
Dec 8, 7:56 PM PSTRiver Flood WarningSEWSnohomish5 days
Dec 8, 7:56 PM PSTRiver Flood WarningSEWSnohomish21 days
Dec 8, 8:10 PM PSTRiver Flood WarningSEWSnohomish3 days
Dec 8, 9:51 PM PSTRiver Flood WarningSEWGrays Harbor65 hr
Dec 8, 10:15 PM PSTRiver Flood WarningSEWSkagit21 days
Dec 8, 11:54 PM PSTRiver Flood WarningSEWPierce3 days
Dec 9, 2:00 AM PSTRiver Flood WarningSEWThurston15 hr
Dec 9, 3:12 AM PSTRiver Flood WarningSEWGrays Harbor, Thurston21 days
Dec 9, 3:40 AM PSTRiver Flood WarningSEWThurston21 days
Dec 9, 6:05 AM PSTWind AdvisorySEWClallam, Grays Harbor, Jefferson, King, Kitsap, Lewis and 4 more40 hr
Dec 9, 7:32 AM PSTRiver Flood WarningSEWGrays Harbor5 days
Dec 9, 7:41 AM PSTSmall Craft AdvisorySEW67 hr
Dec 9, 9:01 AM PSTRiver Flood WarningSEWSkagit10 days
Dec 9, 9:23 AM PSTRiver Flood WarningSEWLewis22 hr
Dec 9, 12:07 PM PSTRiver Flood WarningSEWKing, Pierce12 days
Dec 9, 12:07 PM PSTRiver Flood WarningSEWPierce, Thurston31 hr
Dec 9, 1:47 PM PSTCoastal Flood AdvisorySEWSan Juan, Skagit, Snohomish, Whatcom23 hr
Dec 9, 2:25 PM PSTGale WarningSEW32 hr

Nearby

River Flood Warnings in Washington, 2025Every river flood warning in 2025

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; the gauge from the NWS water service and the USGS.