River Flood Warning 85, NWS Seattle, WA

Issued

Nov 14, 2021, 11:59 PM PST (07:59 UTC)

In effect from

Nov 15, 2021, 2:03 AM PST

Expired

Nov 15, 2021, 7:13 AM PST

In force

5 hr

Issued by

NWS Seattle, WA

Area

Storm-based polygon

Flood severity

Minor

County Snohomish County, WA

The Seattle radar (KATX), 37 km from the middle of the area, began a volume at 07:59 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.

Written for the forecast point South Fork Stillaguamish River near Granite Falls (GFLW1). The gauge peaked at 13.44 ft at Nov 15, 2021, 12:00 AM PST.

Action stage

12.9 ft

This gauge today: stage, forecast and historic crests

Stage from the USGS instantaneous record for site 12161000, one reading an hour, from a day before the product to a day after it ended. Flood stages are today's.

156 
WGUS46 KSEW 150759
FLWSEW

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Flood Warning
National Weather Service Seattle WA
1159 PM PST Sun Nov 14 2021

...The National Weather Service in Seattle WA has issued a Flood 
Warning for the following rivers in Washington...

  South Fork Stillaguamish River Near Granite Falls affecting 
  Snohomish County.

.Heavy rain will continue over the North Central Washington Cascades 
through Monday morning.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Motorists should not attempt to drive around barricades or drive 
cars through flooded areas.

Turn around, don't drown when encountering flooded roads. Most flood 
deaths occur in vehicles.

Additional information is available at www.weather.gov.

The next statement will be issued by Monday morning at 800 AM PST.

&&


WAC061-151600-
/O.NEW.KSEW.FL.W.0085.211115T1003Z-211116T0927Z/
/GFLW1.1.ER.211115T1003Z.211115T1800Z.211116T0026Z.NO/
1159 PM PST Sun Nov 14 2021

...FLOOD WARNING IN EFFECT FROM LATE TONIGHT THROUGH LATE MONDAY 
NIGHT...

* WHAT...Minor flooding is forecast.

* WHERE...South Fork Stillaguamish River Near Granite Falls.

* WHEN...Until early Tuesday morning.

* IMPACTS...At 14.0 feet, the South Fork Stillaguamish River will 
  cause flooding along the river and tributaries.  A stage of 14 
  feet corresponds to Phase 2 in the Snohomish County Flood Warning 
  System.

* ADDITIONAL DETAILS...
  - At 11:15 PM PST Sunday the stage was 13.6 feet.
  - Forecast...The river is expected to rise above flood stage
    just after midnight tonight to a crest of 14.9 feet late
    tomorrow morning. It will then fall below flood stage
    tomorrow afternoon.
  - Flood stage is 14.0 feet.
  - Flood History...This crest compares to a previous crest of
    14.8 feet on 11/01/1977.
  - http://www.weather.gov/safety/flood

&&

LAT...LON 4806 12191 4808 12204 4816 12211 4824 12214
      4816 12202 4815 12192


$$

44

555 
WGUS86 KSEW 151513
FLSSEW

Flood Statement
National Weather Service Seattle WA
713 AM PST Mon Nov 15 2021

...The Flood Warning is cancelled for the following rivers in 
Washington...

  South Fork Stillaguamish River Near Granite Falls affecting 
  Snohomish County.

.Heavy rain will come to an end in the Central Washington Cascades 
this afternoon. Snow levels will lower significantly later this 
afternoon and tonight with the precipitation remaining in the 
mountains in the form of snow.

WAC061-151615-
/O.CAN.KSEW.FL.W.0085.000000T0000Z-211115T1513Z/
/GFLW1.1.ER.000000T0000Z.000000T0000Z.000000T0000Z.NO/
713 AM PST Mon Nov 15 2021

...FLOOD WARNING IS CANCELLED THIS MORNING...

The Flood Warning is cancelled for
  the South Fork Stillaguamish River Near Granite Falls.

* ADDITIONAL DETAILS...
  - At 4:15 AM PST Monday the stage was 12.8 feet.
  - Forecast...The river is expected to rise to a crest of 13.1
    feet late this afternoon.
  - http://www.weather.gov/safety/flood

&&

LAT...LON 4806 12191 4808 12204 4816 12211 4824 12214
      4816 12202 4815 12192


$$

44

River Flood Warnings in Washington, 2021Every river flood warning in 2021

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.