Alert archive / Washington / River Flood Warnings in 2019

River Flood Warning 9, NWS Seattle, WA

October 21, 2019King County, Washington

NWS Seattle, WA issued this river flood warning at Oct 21, 2019, 7:02 PM PDT for King County, Washington. It took effect at Oct 22, 2019, 12:17 AM PDT. It was in force for 22 hr.

The area

The counties it named.

The facts

Issued: Oct 21, 2019, 7:02 PM PDT (02:02 UTC)
In effect from: Oct 22, 2019, 12:17 AM PDT
Expired: Oct 22, 2019, 10:05 PM PDT
In force: 22 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 02:03 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 Snoqualmie River at Snoqualmie Falls (SQUW1). The gauge peaked at 17.78 ft at Oct 22, 2019, 9:00 AM PDT.

This gauge today: stage, forecast and historic crests

Stage from the USGS instantaneous record for site 12144500, 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 Oct 21, 4:11 PM PDT, 2 hours 51 minutes earlier.

Area forecast discussion, Oct 21, 4:11 PM PDT, 2 hours 51 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
Oct 21, 7:02 PM PDT	River Flood Warning	SEW	King	23 hr
Oct 21, 8:39 PM PDT	River Flood Warning	SEW	Clallam	18 hr
Oct 21, 9:31 PM PDT	Gale Warning	SEW		11 hr
Oct 21, 9:31 PM PDT	Small Craft Advisory	SEW		14 hr
Oct 21, 11:53 PM PDT	River Flood Warning	SEW	Snohomish	21 hr
Oct 21, 11:53 PM PDT	River Flood Warning	SEW	King	40 hr
Oct 22, 1:23 AM PDT	River Flood Warning	SEW	Snohomish	20 hr
Oct 22, 1:36 AM PDT	River Flood Warning	SEW	Skagit	8 hr
Oct 22, 2:12 AM PDT	River Flood Warning	SEW	Whatcom	12 hr
Oct 22, 2:12 AM PDT	River Flood Warning	SEW	Snohomish	13 hr
Oct 22, 3:29 AM PDT	River Flood Warning	SEW	Mason	14 hr
Oct 22, 3:37 AM PDT	River Flood Warning	SEW	Snohomish	40 hr
Oct 22, 3:37 AM PDT	River Flood Warning	SEW	Snohomish	54 hr
Oct 22, 3:39 AM PDT	River Flood Warning	SEW	Snohomish	11 hr
Oct 22, 7:48 AM PDT	River Flood Warning	SEW	Snohomish	16 hr
Oct 22, 3:12 PM PDT	Small Craft Advisory	SEW		8 hr

Nearby

River Flood Warnings in Washington, 2019 Every river flood warning in 2019

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.