Alert archive / Washington / River Flood Warnings in 2020

River Flood Warning 40, NWS Seattle, WA

February 1, 2020Lewis County, Washington

NWS Seattle, WA issued this river flood warning at Feb 1, 2020, 4:55 PM PST for Lewis County, Washington. It took effect at Feb 1, 2020, 9:21 PM PST. It was in force for 16 hr.

The area

The counties it named.

The facts

Issued: Feb 1, 2020, 4:55 PM PST (00:55 UTC)
In effect from: Feb 1, 2020, 9:21 PM PST
Expired: Feb 2, 2020, 1:02 PM PST
In force: 16 hr
Issued by: NWS Seattle, WA
Area: Storm-based polygon
Flood severity: Minor

County Lewis County, WA

The radar

The Portland,OR radar (KRTX), 106 km from the middle of the area, began a volume at 00:55 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 Cowlitz River at Randle (RAWW1). The gauge peaked at 17.43 ft at Feb 1, 2020, 11:00 PM PST.

Action stage: 13.2 ft
Minor stage: 18 ft
Moderate stage: 20 ft
Major stage: 22 ft

This gauge today: stage, forecast and historic crests

Stage from the USGS instantaneous record for site 14231000, 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 Feb 1, 3:10 PM PST, 1 hour 45 minutes earlier.

Area forecast discussion, Feb 1, 3:10 PM PST, 1 hour 45 minutes before

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Nearby

River Flood Warnings in Washington, 2020 Every river flood warning in 2020

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.