Alert archive / Washington / River Flood Warnings in 2014

River Flood Warning 29, NWS Seattle, WA

March 16, 2014Snohomish County, Washington

NWS Seattle, WA issued this river flood warning at Mar 16, 2014, 4:48 AM PDT for Snohomish County, Washington. It took effect at Mar 16, 2014, 8:09 AM PDT. It was in force for 30 hr.

The area

The counties it named.

The facts

Issued: Mar 16, 2014, 4:48 AM PDT (11:48 UTC)
In effect from: Mar 16, 2014, 8:09 AM PDT
Expired: Mar 17, 2014, 2:31 PM PDT
In force: 30 hr
Issued by: NWS Seattle, WA
Area: Storm-based polygon
Flood severity: Minor

County Snohomish County, WA

The radar

The Seattle radar (KATX), 60 km from the middle of the area, began a volume at 11:49 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 Stillaguamish River at Arlington (ARLW1).

Action stage: 12.5 ft
Minor stage: 14 ft
Moderate stage: 17.5 ft
Major stage: 19 ft

This gauge today: stage, forecast and historic crests

Stage from the USGS instantaneous record for site 12167400, 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 Mar 16, 3:15 AM PDT, 1 hour 33 minutes earlier.

Area forecast discussion, Mar 16, 3:15 AM PDT, 1 hour 33 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
Mar 16, 2:41 AM PDT	Gale Warning	SEW		31 hr
Mar 16, 2:41 AM PDT	Small Craft Advisory	SEW		44 hr
Mar 16, 3:46 AM PDT	Winter Storm Warning	SEW		20 hr
Mar 16, 4:48 AM PDT	River Flood Warning	SEW	Mason	27 hr
Mar 16, 4:48 AM PDT	River Flood Warning	SEW	Whatcom	18 hr
Mar 16, 4:48 AM PDT	River Flood Warning	SEW	King	25 hr
Mar 16, 9:46 AM PDT	High Surf Advisory	SEW		17 hr
Mar 16, 9:50 AM PDT	Winter Weather Advisory	SEW		18 hr

Nearby

River Flood Warnings in Washington, 2014 Every river flood warning in 2014

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.