Alert archive / Washington / River Flood Warnings in 2018

River Flood Warning 1, NWS Seattle, WA

January 11, 2018King County, Washington

NWS Seattle, WA issued this river flood warning at Jan 11, 2018, 9:31 AM PST for King County, Washington. It took effect at Jan 11, 2018, 7:53 PM PST. It was in force for 18 hr.

The area

The counties it named.

The facts

Issued: Jan 11, 2018, 9:31 AM PST (17:31 UTC)
In effect from: Jan 11, 2018, 7:53 PM PST
Expired: Jan 12, 2018, 1:58 PM PST
In force: 18 hr
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 17:32 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 Tolt River near Carnation (TOLW1).

This gauge today: stage, forecast and historic crests

Stage from the USGS instantaneous record for site 12148500, 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 Jan 11, 8:00 AM PST, 1 hour 31 minutes earlier.

Area forecast discussion, Jan 11, 8:00 AM PST, 1 hour 31 minutes before

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Nearby

River Flood Warnings in Washington, 2018 Every river flood warning in 2018

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.