River Flood Warning 34, NWS Seattle, WA

Issued

Oct 28, 2021, 2:38 PM PDT (21:38 UTC)

In effect from

Oct 28, 2021, 8:38 PM PDT

Expired

Oct 28, 2021, 10:40 PM PDT

In force

2 hr

Issued by

NWS Seattle, WA

Area

Storm-based polygon

Flood severity

Minor

County Whatcom County, WA

The Seattle radar (KATX), 62 km from the middle of the area, began a volume at 21:43 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 Nooksack River near Saxon Bridge (NSSW1). The gauge peaked at 8.00 ft at Oct 28, 2021, 7:00 PM PDT.

Action stage

6.9 ft

Minor stage

8 ft

Moderate stage

8.5 ft

Major stage

9.5 ft

This gauge today: stage, forecast and historic crests

Stage from the USGS instantaneous record for site 12210000, one reading an hour, from a day before the product to a day after it ended. Flood stages are today's.

692 
WGUS46 KSEW 282138
FLWSEW

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Flood Warning
National Weather Service Seattle WA
238 PM PDT Thu Oct 28 2021

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

  South Fork Nooksack River At Saxon Bridge affecting Whatcom 
  County.

  Stillaguamish River At Arlington affecting Snohomish County.

  Skykomish River Near Gold Bar affecting Snohomish County.

.Rain will continue through the rest of today and into early Friday 
morning. These rivers will continue to rise through the night and 
are expected to reach flood stage by tonight.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

Stay tuned to further developments by listening to your local radio, 
television, or NOAA Weather Radio for further information.

Caution is urged when walking near riverbanks.

Additional information is available at www.weather.gov.

The next statement will be issued by this evening at 1045 PM PDT.

&&


WAC073-290545-
/O.NEW.KSEW.FL.W.0034.211029T0338Z-211029T1812Z/
/NSSW1.1.ER.211029T0338Z.211029T0600Z.211029T0911Z.UU/
238 PM PDT Thu Oct 28 2021

The National Weather Service in Seattle has issued a

* Flood Warning for
  the South Fork Nooksack River At Saxon Bridge.
* From this evening to late tomorrow morning.
* At 2:00 PM PDT Thursday the stage was 6.7 feet.
* Flood stage is 8.0 feet.
* Minor flooding is forecast.
* Forecast...The river is expected to rise above flood stage this 
  evening to a crest of 8.3 feet late this evening. It will then 
  fall below flood stage just after midnight tonight.
* Impact...At 8.0 feet, the Nooksack River floodwaters will inundate 
  much of the low farm lands along the river...with water over some 
  roadways...including potentially Highway 9 north of Acme.
* Flood History...This crest compares to a previous crest of 8.5 
  feet on 01/08/2009.


&&

LAT...LON 4865 12219 4871 12226 4880 12224 4882 12215
      4873 12215 4865 12208

$$

WAC061-290545-
/O.NEW.KSEW.FL.W.0035.211029T0343Z-211030T0023Z/
/GLBW1.1.ER.211029T0343Z.211029T0600Z.211029T1222Z.NO/
238 PM PDT Thu Oct 28 2021

The National Weather Service in Seattle has issued a

* Flood Warning for
  the Skykomish River Near Gold Bar.
* From this evening to tomorrow afternoon.
* At 1:30 PM PDT Thursday the stage was 11.8 feet.
* Flood stage is 15.0 feet.
* Minor flooding is forecast.
* Forecast...The river is expected to rise above flood stage this 
  evening to a crest of 15.5 feet late this evening. It will then 
  fall below flood stage late tonight.
* Impact...At 15.0 feet, the Skykomish River will cause minor 
  flooding of low pasture lands and low lying roads...including 
  Index-Galena Rd and Tualco Loop Rd.  A stage of 15 feet on the 
  Skykomish River corresponds to a Phase 2 in the Snohomish County 
  flood program.
* Flood History...This crest compares to a previous crest of 15.5 
  feet on 11/01/1977.


&&

LAT...LON 4774 12150 4780 12173 4780 12196 4793 12197
      4794 12169 4787 12147

$$

WAC061-290545-
/O.NEW.KSEW.FL.W.0036.211029T0345Z-211030T0538Z/
/ARLW1.1.ER.211029T0345Z.211029T1200Z.211029T1737Z.NO/
238 PM PDT Thu Oct 28 2021

The National Weather Service in Seattle has issued a

* Flood Warning for
  the Stillaguamish River At Arlington.
* From this evening to late tomorrow evening.
* At 2:10 PM PDT Thursday the stage was 7.8 feet.
* Flood stage is 14.0 feet.
* Minor flooding is forecast.
* Forecast...The river is expected to rise above flood stage this 
  evening to a crest of 15.7 feet late tonight. It will then fall 
  below flood stage late tomorrow morning.
* Impact...At 14.0 feet, the Stillaguamish River will locally spill 
  over its banks.  Minor flooding around Silvana will occur...
  including over Pioneer Highway.  A stage of 14 feet on the 
  Stillaguamish River corresponds roughly to Phase 2 in the 
  Snohomish County Flood program.
* Flood History...This crest compares to a previous crest of 16.1 
  feet on 12/29/1998.


&&

LAT...LON 4816 12211 4817 12223 4816 12237 4826 12240
      4823 12224 4824 12214

$$

mbutwin

833 
WGUS86 KSEW 290540
FLSSEW

Flood Statement
National Weather Service Seattle WA
1040 PM PDT Thu Oct 28 2021

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

  South Fork Nooksack River At Saxon Bridge affecting Whatcom 
  County.

.The South Fork of the Nooksack River at Saxon Bridge has crested 
below flood stage and will continue to recede overnight into Friday 
morning.

WAC073-290645-
/O.CAN.KSEW.FL.W.0034.000000T0000Z-211029T0540Z/
/NSSW1.1.ER.000000T0000Z.000000T0000Z.000000T0000Z.UU/
1040 PM PDT Thu Oct 28 2021

...The Flood Warning for the South Fork Nooksack River At Saxon 
Bridge has been cancelled...

The Flood Warning is cancelled for
  the South Fork Nooksack River At Saxon Bridge.
* At 10:00 PM PDT Thursday the stage was 6.9 feet.
* Flood stage is 8.0 feet.
* The river crested around 7.7 feet around 7 pm Thursday evening. 
* Forecast...The river is expected to fall to 2.8 feet Sunday 
  afternoon.


&&

LAT...LON 4865 12219 4871 12226 4880 12224 4882 12215
      4873 12215 4865 12208

$$

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.