Alert archive / Washington / River Flood Warnings in 2021

River Flood Warning 69, NWS Seattle, WA

November 12, 2021Grays Harbor County, Washington

NWS Seattle, WA issued this river flood warning at Nov 12, 2021, 9:30 PM PST for Grays Harbor County, Washington. It took effect at Nov 13, 2021, 9:40 AM PST. It was in force for 49 hr.

The area

The outline as issued.

The facts

Issued: Nov 12, 2021, 9:30 PM PST (05:30 UTC)
In effect from: Nov 13, 2021, 9:40 AM PST
Expired: Nov 15, 2021, 10:27 AM PST
In force: 49 hr
Issued by: NWS Seattle, WA
Area: Storm-based polygon
Flood severity: Minor

County Grays Harbor County, WA

The radar

The Langley Hill radar (KLGX), 56 km from the middle of the area, began a volume at 05:29 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 Chehalis River at Porter (CRPW1). The gauge peaked at 48.14 ft at Nov 14, 2021, 8:00 AM PST.

Action stage: 45.5 ft
Minor stage: 48 ft
Moderate stage: 50 ft
Major stage: 52 ft

This gauge today: stage, forecast and historic crests

Stage from the USGS instantaneous record for site 12031000, one reading an hour, from a day before the product to a day after it ended. Flood stages are today's.

The text

As transmitted.

142 
WGUS46 KSEW 130530
FLWSEW

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Flood Warning
National Weather Service Seattle WA
930 PM PST Fri Nov 12 2021

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

  Chehalis River At Porter affecting Grays Harbor County.

.Heavy rainfall yesterday and today will result in the Chehalis 
River at Porter reaching minor flood stage Saturday morning.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

Be especially cautious at night when it is harder to recognize the 
dangers of flooding.

Additional information is available at www.weather.gov.

The next statement will be issued by Saturday morning at 700 AM PST.

&&


WAC027-131600-
/O.NEW.KSEW.FL.W.0069.211113T1740Z-211115T1406Z/
/CRPW1.1.ER.211113T1740Z.211114T1200Z.211115T0505Z.NO/
930 PM PST Fri Nov 12 2021

...FLOOD WARNING IN EFFECT FROM SATURDAY MORNING THROUGH MONDAY 
MORNING...

* WHAT...Minor flooding is forecast.

* WHERE...Chehalis River At Porter.

* WHEN...From Saturday morning to Monday morning.

* IMPACTS...At 48.0 feet, the Chehalis River in Grays Harbor will 
  flood low pasture lands and some roads. High tidal levels at 
  Aberdeen will worsen flooding along the lower reaches.

* ADDITIONAL DETAILS...
  - At 8:45 PM PST Friday the stage was 46.7 feet.
  - Forecast...The river is expected to rise above flood stage
    late tomorrow morning to a crest of 48.5 feet early Sunday
    morning. It will then fall below flood stage late Sunday
    evening.
  - Flood stage is 48.0 feet.
  - Flood History...No available flood history.
  - http://www.weather.gov/safety/flood

&&

LAT...LON 4682 12340 4689 12347 4689 12362 4706 12360
      4707 12333 4693 12318


$$

45

8 follow-up statements

507 
WGUS86 KSEW 131435
FLSSEW

Flood Statement
National Weather Service Seattle WA
635 AM PST Sat Nov 13 2021

...The Flood Warning continues for the following rivers in 
Washington...

  Chehalis River At Porter affecting Grays Harbor County.

.Heavy rainfall yesterday and today will result in the Chehalis 
River at Porter reaching minor flood stage Saturday evening.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

Be especially cautious at night when it is harder to recognize the 
dangers of flooding.

Additional information is available at www.weather.gov.

The next statement will be issued by this afternoon at 300 PM PST.

&&


WAC027-132300-
/O.EXT.KSEW.FL.W.0069.211114T0330Z-211115T0728Z/
/CRPW1.1.ER.211114T0330Z.211114T1200Z.211114T2228Z.NO/
635 AM PST Sat Nov 13 2021

...FLOOD WARNING NOW IN EFFECT FROM THIS EVENING THROUGH SUNDAY 
EVENING...

* WHAT...Minor flooding is forecast.

* WHERE...Chehalis River At Porter.

* WHEN...From this evening to late tomorrow afternoon.

* IMPACTS...At 48.0 feet, the Chehalis River in Grays Harbor will 
  flood low pasture lands and some roads. High tidal levels at 
  Aberdeen will worsen flooding along the lower reaches.

* ADDITIONAL DETAILS...
  - At 5:45 AM PST Saturday the stage was 47.3 feet.
  - Forecast...The river is expected to rise above flood stage
    this evening to a crest of 48.1 feet late tonight. It will
    then fall below flood stage early tomorrow afternoon.
  - Flood stage is 48.0 feet.
  - Flood History...No available flood history.
  - http://www.weather.gov/safety/flood

&&

LAT...LON 4682 12340 4689 12347 4689 12362 4706 12360
      4707 12333 4693 12318


$$

45

465 
WGUS86 KSEW 132229
FLSSEW

Flood Statement
National Weather Service Seattle WA
229 PM PST Sat Nov 13 2021

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

  Chehalis River At Porter affecting Grays Harbor County.

.The Chehalis River at Porter will continue to slowly rise and crest 
near minor flood stage.

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 this evening at 1030 PM PST.

&&


WAC027-140630-
/O.EXT.KSEW.FL.W.0069.211114T1908Z-211115T1411Z/
/CRPW1.1.ER.211114T1908Z.211115T0000Z.211115T0510Z.NO/
229 PM PST Sat Nov 13 2021

...FLOOD WARNING NOW IN EFFECT FROM SUNDAY MORNING THROUGH MONDAY 
MORNING...

* WHAT...Minor flooding is forecast.

* WHERE...Chehalis River At Porter.

* WHEN...From Sunday morning to Monday morning.

* IMPACTS...At 48.0 feet, the Chehalis River in Grays Harbor will 
  flood low pasture lands and some roads. High tidal levels at 
  Aberdeen will worsen flooding along the lower reaches.

* ADDITIONAL DETAILS...
  - At 1:45 PM PST Saturday the stage was 47.7 feet.
  - Forecast...The river will rise to 48.0 feet late tomorrow
    evening. It will then fall to 46.1 feet and begin rising
    again Tuesday afternoon. It will rise to 46.3 feet early
    Wednesday morning. It will then fall again and remain below
    flood stage.
  - Flood stage is 48.0 feet.
  - Flood History...No available flood history.
  - http://www.weather.gov/safety/flood

&&

LAT...LON 4682 12340 4689 12347 4689 12362 4706 12360
      4707 12333 4693 12318


$$

33

936 
WGUS86 KSEW 140621
FLSSEW

Flood Statement
National Weather Service Seattle WA
1021 PM PST Sat Nov 13 2021

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

  Chehalis River At Porter affecting Grays Harbor County.

.Runoff from previous heavy rain and flowing down the Chehalis 
River, plus current rain tonight into tomorrow,  will continue to 
slowly drive the river at Porter to above minor flood stage.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

Be especially cautious at night when it is harder to recognize the 
dangers of flooding.

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 Sunday morning at 730 AM PST.

&&


WAC027-141530-
/O.EXT.KSEW.FL.W.0069.211114T1057Z-211115T1524Z/
/CRPW1.1.ER.211114T1057Z.211115T0000Z.211115T0624Z.NO/
1021 PM PST Sat Nov 13 2021

...FLOOD WARNING NOW IN EFFECT FROM LATE TONIGHT THROUGH MONDAY 
MORNING...

* WHAT...Minor flooding is forecast.

* WHERE...Chehalis River At Porter.

* WHEN...From late tonight to Monday morning.

* IMPACTS...At 48.0 feet, the Chehalis River in Grays Harbor will 
  flood low pasture lands and some roads. High tidal levels at 
  Aberdeen will worsen flooding along the lower reaches.

* ADDITIONAL DETAILS...
  - At 9:45 PM PST Saturday the stage was 47.9 feet.
  - Forecast...The river will rise above flood stage just after
    midnight tonight to 48.1 feet tomorrow afternoon. It will
    then fall below flood stage late tomorrow evening.
  - Flood stage is 48.0 feet.
  - Flood History...No available flood history.
  - http://www.weather.gov/safety/flood

&&

LAT...LON 4682 12340 4689 12347 4689 12362 4706 12360
      4707 12333 4693 12318


$$

JBB

911 
WGUS86 KSEW 141503
FLSSEW

Flood Statement
National Weather Service Seattle WA
703 AM PST Sun Nov 14 2021

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

  Skokomish River At Potlatch affecting Mason County.

  Chehalis River At Porter affecting Grays Harbor County.

.Rainfall is already driving the Skokomish River to flood stage and 
a higher second crest later, while the lower Chehalis River is 
slowly creeping up and is now above flood stage.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

Be especially cautious at night when it is harder to recognize the 
dangers of flooding.

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 this afternoon at 300 PM PST.

&&


WAC027-142315-
/O.EXT.KSEW.FL.W.0069.000000T0000Z-211115T1543Z/
/CRPW1.1.ER.211114T1205Z.211114T1345Z.211115T0643Z.NO/
703 AM PST Sun Nov 14 2021

...FLOOD WARNING NOW IN EFFECT FROM THIS MORNING THROUGH MONDAY 
MORNING...

* WHAT...Minor flooding is occurring and minor flooding is forecast.

* WHERE...Chehalis River At Porter.

* WHEN...Until tomorrow morning.

* IMPACTS...At 48.0 feet, the Chehalis River in Grays Harbor will 
  flood low pasture lands and some roads. High tidal levels at 
  Aberdeen will worsen flooding along the lower reaches.

* ADDITIONAL DETAILS...
  - At 5:45 AM PST Sunday the stage was 48.1 feet.
  - Recent Activity...The maximum river stage in the 24 hours
    ending at 5:45 AM PST Sunday was 48.1 feet.
  - Forecast...The river is expected to rise to a crest of 48.1
    feet late this afternoon. It will then fall below flood stage
    late this evening.
  - Flood stage is 48.0 feet.
  - Flood History...No available flood history.
  - http://www.weather.gov/safety/flood

&&

LAT...LON 4682 12340 4689 12347 4689 12362 4706 12360
      4707 12333 4693 12318


$$

WAC045-142315-
/O.EXT.KSEW.FL.W.0051.000000T0000Z-211117T0503Z/
/SRPW1.1.ER.211114T0600Z.211114T1731Z.211116T2059Z.NO/
703 AM PST Sun Nov 14 2021

...FLOOD WARNING NOW IN EFFECT FROM THIS MORNING THROUGH TUESDAY 
EVENING...

* WHAT...Minor flooding is occurring and minor flooding is forecast.

* WHERE...Skokomish River At Potlatch.

* WHEN...Until late Tuesday evening.

* IMPACTS...At 17.5 feet, the Skokomish River will cause moderate 
  flooding, with deep and quick flood waters inundating some 
  residential areas, many roads, and much of the farm land in the 
  Skokomish Valley. Inundated roads include the Skokomish Valley 
  road, Bourgault Road West, Purdy Cutoff Road, and Highway 106.

* ADDITIONAL DETAILS...
  - At 6:45 AM PST Sunday the stage was 17.2 feet.
  - Recent Activity...The maximum river stage in the 24 hours
    ending at 6:45 AM PST Sunday was 17.2 feet.
  - Forecast...The river is expected to rise to a crest of 17.3
    feet late this morning. It will then fall briefly, staying
    above flood stage. The river will then begin to rise again.
  - Flood stage is 16.5 feet.
  - Flood History...This crest compares to a previous crest of
    17.6 feet on 10/20/2003.
  - http://www.weather.gov/safety/flood

&&

LAT...LON 4744 12326 4733 12321 4736 12317 4733 12308
      4721 12321 4738 12340


$$

JBB

276 
WGUS86 KSEW 142243
FLSSEW

Flood Statement
National Weather Service Seattle WA
243 PM PST Sun Nov 14 2021

...The Flood Warning continues for the following rivers in 
Washington...

  Chehalis River At Porter affecting Grays Harbor County.

.The Chehalis River will remain near minor flood stage tonight then 
slowly recede on Monday.

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 late tonight at 215 AM PST.

&&


WAC027-151015-
/O.EXT.KSEW.FL.W.0069.000000T0000Z-211115T1009Z/
/CRPW1.1.ER.211114T1205Z.211114T1530Z.211115T0109Z.NO/
243 PM PST Sun Nov 14 2021

...FLOOD WARNING NOW IN EFFECT FROM THIS AFTERNOON THROUGH LATE 
TONIGHT...

* WHAT...Minor flooding is occurring and minor flooding is forecast.

* WHERE...Chehalis River At Porter.

* WHEN...Until just after midnight tonight.

* IMPACTS...At 48.0 feet, the Chehalis River in Grays Harbor will 
  flood low pasture lands and some roads. High tidal levels at 
  Aberdeen will worsen flooding along the lower reaches.

* ADDITIONAL DETAILS...
  - At 1:45 PM PST Sunday the stage was 48.1 feet.
  - Recent Activity...The maximum river stage in the 24 hours
    ending at 1:45 PM PST Sunday was 48.2 feet.
  - Forecast...The river is expected to fall below flood stage
    tonight and continue falling to 43.4 feet late Thursday
    morning.
  - Flood stage is 48.0 feet.
  - Flood History...No available flood history.
  - http://www.weather.gov/safety/flood

&&

LAT...LON 4682 12340 4689 12347 4689 12362 4706 12360
      4707 12333 4693 12318


$$

33

936 
WGUS86 KSEW 150929
FLSSEW

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

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

  Chehalis River At Porter affecting Grays Harbor County.

.Rain at times continuing over the Southwest Interior of Washington 
this morning will keep the lower reaches of the Chehalis river 
running high today.

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 early this morning at 300 AM 
PST.

&&


WAC027-151100-
/O.EXT.KSEW.FL.W.0069.000000T0000Z-211115T1100Z/
/CRPW1.1.ER.211114T1205Z.211114T1530Z.211115T0200Z.NO/
129 AM PST Mon Nov 15 2021

...FLOOD WARNING NOW IN EFFECT THIS MORNING...

* WHAT...Minor flooding will continue from Porter downstream to 
  Grays Harbor this morning.

* WHERE...Chehalis River At Porter.

* WHEN...Until this morning.

* IMPACTS...At 46.0 feet, the Chehalis River in Grays Harbor County 
  will locally spill over its banks with shallow water on several 
  roads.

* ADDITIONAL DETAILS...
  - At 12:45 AM PST Monday the stage was 47.8 feet.
  - Forecast...The river is expected to fall to 47 feet tonight
    and remain near 47 feet through Tuesday.
  - Flood stage is 48.0 feet.
  - Flood History...No available flood history.
  - http://www.weather.gov/safety/flood

&&

LAT...LON 4682 12340 4689 12347 4689 12362 4706 12360
      4707 12333 4693 12318


$$

44

963 
WGUS86 KSEW 151017
FLSSEW

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

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

  Chehalis River At Porter affecting Grays Harbor County.

.A brief round of heavy rain this morning over the Southwest 
Interior of washington will keep the lower reaches of the Chehalis 
river running high this 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 this morning at 1015 AM PST.

&&


WAC027-151830-
/O.EXT.KSEW.FL.W.0069.000000T0000Z-211115T2000Z/
/CRPW1.1.ER.211114T1205Z.211114T1530Z.211115T0200Z.NO/
217 AM PST Mon Nov 15 2021

...FLOOD WARNING NOW IN EFFECT FROM EARLY THIS MORNING THROUGH THIS 
MORNING...

* WHAT...Minor flooding from Porter downstream to Grays Harbor. 

* WHERE...Chehalis River At Porter.

* WHEN...Until this afternoon.

* IMPACTS...At 46.0 feet, the Chehalis River in Grays Harbor County 
  will locally spill over its banks with shallow water on several 
  roads.

* ADDITIONAL DETAILS...
  - At 1:45 AM PST Monday the stage was 47.7 feet.
  - Forecast...The river is expected to fall to 47.0 feet tonight
    and remain near 47 feet Tuesday.
  - Flood stage is 48.0 feet.
  - Flood History...No available flood history.
  - http://www.weather.gov/safety/flood

&&

LAT...LON 4682 12340 4689 12347 4689 12362 4706 12360
      4707 12333 4693 12318


$$

44

288 
WGUS86 KSEW 151827
FLSSEW

Flood Statement
National Weather Service Seattle WA
1027 AM PST Mon Nov 15 2021

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

  Chehalis River At Porter affecting Grays Harbor County.

.A brief round of rain over the Southwest Interior of washington 
will move east of the area.

WAC027-151930-
/O.CAN.KSEW.FL.W.0069.000000T0000Z-211115T1827Z/
/CRPW1.1.ER.211114T1205Z.211114T1530Z.000000T0000Z.NO/
1027 AM PST Mon Nov 15 2021

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

The Flood Warning is cancelled for
  the Chehalis River At Porter.

* ADDITIONAL DETAILS...
  - At 9:45 AM PST Monday the stage was 47.2 feet.
  - Forecast...The river is expected to fall to 41.7 feet late
    Friday morning.
  - http://www.weather.gov/safety/flood

&&

LAT...LON 4682 12340 4689 12347 4689 12362 4706 12360
      4707 12333 4693 12318


$$

45

The office that day

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

Issued	Product	Office	Counties	Lasted
Nov 12, 4:26 PM PST	Areal Flood Advisory	SEW	Island, Skagit, Snohomish	3 hr
Nov 12, 5:12 PM PST	River Flood Warning	SEW	Skagit	37 hr
Nov 13, 2:31 AM PST	Gale Warning	SEW		3 days
Nov 13, 2:31 AM PST	Small Craft Advisory	SEW		25 hr
Nov 13, 3:13 PM PST	Wind Advisory	SEW	San Juan	52 hr

Nearby

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

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.