Alert archive / Washington / River Flood Warnings in 2019

River Flood Warning 18, NWS Seattle, WA

October 22, 2019Snohomish County, Washington

NWS Seattle, WA issued this river flood warning at Oct 22, 2019, 3:37 AM PDT for Snohomish County, Washington. It took effect at Oct 22, 2019, 11:14 AM PDT. It was in force for 33 hr.

The area

The counties it named.

The facts

Issued
Oct 22, 2019, 3:37 AM PDT (10:37 UTC)
In effect from
Oct 22, 2019, 11:14 AM PDT
Expired
Oct 23, 2019, 7:47 PM PDT
In force
33 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 10:36 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 Snohomish River near Monroe (MROW1). The gauge peaked at 14.95 ft at Oct 22, 2019, 2:00 PM PDT.

actionminormoderatemajor5101510/2210/2310/2410/25
Action stage
10 ft
Minor stage
15 ft
Moderate stage
16 ft
Major stage
17 ft

This gauge today: stage, forecast and historic crests

Stage from the USGS instantaneous record for site 12150800, 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 22, 2:45 AM PDT, 52 minutes earlier.

Area forecast discussion, Oct 22, 2:45 AM PDT, 52 minutes before
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The office that day

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

IssuedProductOfficeCountiesLasted
Oct 21, 7:02 PM PDTRiver Flood WarningSEWKing23 hr
Oct 21, 7:02 PM PDTRiver Flood WarningSEWKing27 hr
Oct 21, 8:39 PM PDTRiver Flood WarningSEWClallam18 hr
Oct 21, 9:31 PM PDTGale WarningSEW11 hr
Oct 21, 9:31 PM PDTSmall Craft AdvisorySEW14 hr
Oct 21, 11:53 PM PDTRiver Flood WarningSEWSnohomish21 hr
Oct 21, 11:53 PM PDTRiver Flood WarningSEWKing40 hr
Oct 22, 1:23 AM PDTRiver Flood WarningSEWSnohomish20 hr
Oct 22, 1:36 AM PDTRiver Flood WarningSEWSkagit8 hr
Oct 22, 2:12 AM PDTRiver Flood WarningSEWWhatcom12 hr
Oct 22, 2:12 AM PDTRiver Flood WarningSEWSnohomish13 hr
Oct 22, 3:29 AM PDTRiver Flood WarningSEWMason14 hr
Oct 22, 3:37 AM PDTRiver Flood WarningSEWSnohomish54 hr
Oct 22, 3:39 AM PDTRiver Flood WarningSEWSnohomish11 hr
Oct 22, 7:48 AM PDTRiver Flood WarningSEWSnohomish16 hr
Oct 22, 3:12 PM PDTSmall Craft AdvisorySEW8 hr

Nearby

River Flood Warnings in Washington, 2019Every 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.