Alert archive / Washington / River Flood Warnings in 2018

River Flood Warning 23, NWS Seattle, WA

November 2, 2018Mason County, Washington

NWS Seattle, WA issued this river flood warning at Nov 2, 2018, 10:47 AM PDT for Mason County, Washington. It was in force for 3 hr.

The area

The counties it named.

The facts

Issued: Nov 2, 2018, 10:47 AM PDT (17:47 UTC)
Expired: Nov 2, 2018, 1:49 PM PDT
In force: 3 hr
Issued by: NWS Seattle, WA
Area: Storm-based polygon
Flood severity: Minor

County Mason County, WA

The radar

The Langley Hill radar (KLGX), 74 km from the middle of the area, began a volume at 17:46 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 Skokomish River near Potlatch (SRPW1). The gauge peaked at 16.47 ft at Nov 2, 2018, 11:00 AM PDT.

Action stage: 15 ft
Minor stage: 16.5 ft
Moderate stage: 17.5 ft
Major stage: 18 ft

This gauge today: stage, forecast and historic crests

Stage from the USGS instantaneous record for site 12061500, 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 Nov 2, 10:19 AM PDT, 28 minutes earlier.

Area forecast discussion, Nov 2, 10:19 AM PDT, 28 minutes before

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The office that day

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

Issued	Product	Office	Counties	Lasted
Nov 1, 8:37 PM PDT	Small Craft Advisory for Rough Bar	SEW		18 hr
Nov 1, 8:37 PM PDT	Small Craft Advisory	SEW		30 hr
Nov 1, 11:20 PM PDT	Wind Advisory	SEW		6 hr
Nov 2, 5:02 AM PDT	Wind Advisory	SEW		9 hr
Nov 2, 6:39 AM PDT	River Flood Warning	SEW	Whatcom	5 hr
Nov 2, 7:29 AM PDT	River Flood Warning	SEW	Whatcom	19 hr
Nov 2, 8:01 AM PDT	River Flood Warning	SEW	King	12 hr
Nov 2, 9:01 AM PDT	River Flood Warning	SEW	Snohomish	16 hr
Nov 2, 9:14 AM PDT	River Flood Warning	SEW	Snohomish	16 hr
Nov 2, 9:16 AM PDT	Small Craft Advisory for Hazardous Seas	SEW		6 hr

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.