Alert archive / Washington / River Flood Warnings in 2025

River Flood Warning 12, NWS Spokane, WA

December 15, 2025Chelan County, Washington

NWS Spokane, WA issued this river flood warning at Dec 15, 2025, 11:16 AM PST for Chelan County, Washington. It took effect at Dec 15, 2025, 1:08 PM PST. It was in force for 36 hr.

The area

The counties it named.

The facts

Issued
Dec 15, 2025, 11:16 AM PST (19:16 UTC)
In effect from
Dec 15, 2025, 1:08 PM PST
Expired
Dec 17, 2025, 1:02 AM PST
In force
36 hr
Issued by
NWS Spokane, WA
Area
Storm-based polygon
Flood severity
Minor

County Chelan County, WA

The radar

The Seattle radar (KATX), 144 km from the middle of the area, began a volume at 19:16 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 Stehekin River at Stehekin (STHW1).

Action stage
19.5 ft
Minor stage
20.5 ft

This gauge today: stage, forecast and historic crests

Stage from the USGS instantaneous record for site 12451000, 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 Spokane, WA wrote its last area forecast discussion before this river flood warning went out at Dec 15, 11:01 AM PST, 15 minutes earlier.

Area forecast discussion, Dec 15, 11:01 AM PST, 15 minutes before
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The office that day

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

IssuedProductOfficeCountiesLasted
Dec 15, 2:28 AM PSTWinter Storm WatchOTXChelan12 hr
Dec 15, 2:07 PM PSTWinter Storm WarningOTXChelan23 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.