Alert archive / Washington / River Flood Warnings in 2021

River Flood Warning 64, NWS Seattle, WA

November 12, 2021Grays Harbor County, Thurston County, Washington

NWS Seattle, WA issued this river flood warning at Nov 12, 2021, 11:56 AM PST for Grays Harbor County, Thurston County, Washington. It took effect at Nov 12, 2021, 6:11 PM PST. It was in force for 34 hr.

The area

The outline as issued.

The facts

Issued: Nov 12, 2021, 11:56 AM PST (19:56 UTC)
In effect from: Nov 12, 2021, 6:11 PM PST
Expired: Nov 14, 2021, 4:07 AM PST
In force: 34 hr
Issued by: NWS Seattle, WA
Area: Storm-based polygon
Flood severity: Minor

Counties Grays Harbor County, WA, Thurston County, WA

The radar

The Langley Hill radar (KLGX), 83 km from the middle of the area, began a volume at 19:54 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 near Grand Mound (CGMW1). The gauge peaked at 141.40 ft at Nov 13, 2021, 9:00 AM PST.

Action stage: 138.5 ft
Minor stage: 141 ft
Moderate stage: 142.5 ft
Major stage: 144 ft

This gauge today: stage, forecast and historic crests

Stage from the USGS instantaneous record for site 12027500, 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.

195 
WGUS46 KSEW 121956
FLWSEW

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Flood Warning
National Weather Service Seattle WA
1156 AM 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 Above Grand Mound affecting Grays Harbor and 
  Thurston Counties.

.The Chehalis River will continue to rise and will reach minor flood 
stage this evening.

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 800 PM PST.

&&


WAC027-067-130400-
/O.NEW.KSEW.FL.W.0064.211113T0211Z-211114T1734Z/
/CGMW1.1.ER.211113T0211Z.211113T1800Z.211114T0833Z.NO/
1156 AM PST Fri Nov 12 2021

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

* WHAT...Minor flooding is forecast.

* WHERE...Chehalis River Above Grand Mound.

* WHEN...From this evening to late Sunday morning.

* IMPACTS...At 141.0 feet, the Chehalis River in Thurston County 
  will flood several roads in Independence Valley including James 
  Road, Independence Road, and Moon road. Flood waters will also 
  cover nearby farm lands.

* ADDITIONAL DETAILS...
  - At 11:00 AM PST Friday the stage was 139.4 feet.
  - Forecast...The river is expected to rise above flood stage
    this evening to a crest of 142.4 feet late tomorrow morning.
    It will then fall below flood stage early Sunday morning.
  - Flood stage is 141.0 feet.
  - Flood History...No available flood history.
  - http://www.weather.gov/safety/flood

&&

LAT...LON 4672 12305 4677 12315 4682 12340 4693 12318
      4690 12304 4681 12289


$$

33

5 follow-up statements

798 
WGUS86 KSEW 130355
FLSSEW

Flood Statement
National Weather Service Seattle WA
755 PM PST Fri Nov 12 2021

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

  Chehalis River Above Grand Mound affecting Grays Harbor and 
  Thurston Counties.

.Heavy rain is over but rivers are still rising.

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.

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 late tonight at 400 AM PST.

&&


WAC027-067-131200-
/O.EXT.KSEW.FL.W.0064.000000T0000Z-211114T1555Z/
/CGMW1.1.ER.211113T0507Z.211113T1800Z.211114T0655Z.NO/
755 PM PST Fri Nov 12 2021

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

* WHAT...Minor flooding is forecast.

* WHERE...Chehalis River Above Grand Mound.

* WHEN...Until Sunday morning.

* IMPACTS...At 141.0 feet, the Chehalis River in Thurston County 
  will flood several roads in Independence Valley including James 
  Road, Independence Road, and Moon road. Flood waters will also 
  cover nearby farm lands.

* ADDITIONAL DETAILS...
  - At 7:00 PM PST Friday the stage was 140.6 feet.
  - Forecast...The river is expected to rise above flood stage
    late this evening to a crest of 142.2 feet late tomorrow
    morning. It will then fall below flood stage late tomorrow
    evening.
  - Flood stage is 141.0 feet.
  - Flood History...No available flood history.
  - http://www.weather.gov/safety/flood

&&

LAT...LON 4672 12305 4677 12315 4682 12340 4693 12318
      4690 12304 4681 12289


$$

JBB

889 
WGUS86 KSEW 131120
FLSSEW

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

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

  Cowlitz River At Randle affecting Lewis County.

  Chehalis River Above Grand Mound affecting Grays Harbor and 
  Thurston Counties.

  Newaukum River Near Chehalis affecting Lewis County.

.Heavy rain is over but rivers are still rising.

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 1230 PM PST.

&&


WAC027-067-132100-
/O.EXT.KSEW.FL.W.0064.000000T0000Z-211114T1607Z/
/CGMW1.1.ER.211113T0745Z.211113T1800Z.211114T0707Z.NO/
320 AM PST Sat Nov 13 2021

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

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

* WHERE...Chehalis River Above Grand Mound.

* WHEN...Until tomorrow morning.

* IMPACTS...At 141.0 feet, the Chehalis River in Thurston County 
  will flood several roads in Independence Valley including James 
  Road, Independence Road, and Moon road. Flood waters will also 
  cover nearby farm lands.

* ADDITIONAL DETAILS...
  - At 3:00 AM PST Saturday the stage was 141.2 feet.
  - Recent Activity...The maximum river stage in the 24 hours
    ending at 3:00 AM PST Saturday was 141.2 feet.
  - Forecast...The river is expected to rise to a crest of 141.5
    feet late this morning. It will then fall below flood stage
    late this evening.
  - Flood stage is 141.0 feet.
  - Flood History...No available flood history.
  - http://www.weather.gov/safety/flood

&&

LAT...LON 4672 12305 4677 12315 4682 12340 4693 12318
      4690 12304 4681 12289


$$

WAC041-132100-
/O.EXT.KSEW.FL.W.0058.000000T0000Z-211114T1556Z/
/RAWW1.3.ER.211112T1217Z.211113T1000Z.211114T0656Z.NO/
320 AM PST Sat Nov 13 2021

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

* WHAT...Major flooding is occurring and major flooding is forecast.

* WHERE...Cowlitz River At Randle.

* WHEN...Until tomorrow morning.

* IMPACTS...At 22.0 feet, the Cowlitz River will cause major 
  flooding from the vicinity of Randle downstream through Riffe 
  Lake...with dangerous inundation of many roads including US 
  Highway 12...residential and commercial areas...and farms.  
  Flooding will occur all along the river including headwaters...
  tributaries...and other streams within and near the Cowlitz River 
  Basin.

* ADDITIONAL DETAILS...
  - At 3:00 AM PST Saturday the stage was 22.2 feet.
  - Recent Activity...The maximum river stage in the 24 hours
    ending at 3:00 AM PST Saturday was 22.3 feet.
  - Forecast...The river is expected to fall below flood stage
    late this evening and continue falling to 12.5 feet late
    Monday evening.
  - Flood stage is 18.0 feet.
  - Flood History...This crest compares to a previous crest of
    21.1 feet on 11/26/1999.
  - http://www.weather.gov/safety/flood

&&

LAT...LON 4645 12180 4645 12194 4640 12219 4654 12220
      4659 12198 4661 12183


$$

WAC041-132100-
/O.EXT.KSEW.FL.W.0056.000000T0000Z-211114T0316Z/
/NEWW1.1.ER.211112T0858Z.211113T0600Z.211113T1816Z.NO/
320 AM PST Sat Nov 13 2021

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

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

* WHERE...Newaukum River Near Chehalis.

* WHEN...Until this evening.

* IMPACTS...At 202.5 feet, flood waters will inundate many roads and 
  residential and commercial areas along the Newaukum River and its 
  forks.  Flooding in some areas may be deep and hazardous 
  especially near rivers. Impacted roadways and surrounding areas 
  include Jackson Hwy. and Tune, Rush, Sommerville, Griel, Hamilton, 
  Tauscher, Guerrier, Kirkland, Macomber, Rice, Senn, Lucas Creek, 
  Middle Fork and North Fork Roads.  A stage of 202.5 feet on the 
  Newaukum roughly corresponds to Phase 2 flood in the Lewis County 
  flood system.

* ADDITIONAL DETAILS...
  - At 2:45 AM PST Saturday the stage was 204.2 feet.
  - Recent Activity...The maximum river stage in the 24 hours
    ending at 2:45 AM PST Saturday was 204.6 feet.
  - Forecast...The river is expected to rise to a crest of 204.2
    feet early this morning. It will then fall below flood stage
    late this morning.
  - Flood stage is 202.5 feet.
  - Flood History...No available flood history.
  - http://www.weather.gov/safety/flood

&&

LAT...LON 4657 12248 4652 12289 4662 12305 4675 12295
      4668 12286 4676 12264


$$

45

204 
WGUS86 KSEW 132032
FLSSEW

Flood Statement
National Weather Service Seattle WA
1232 PM PST Sat Nov 13 2021

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

  Chehalis River Above Grand Mound affecting Grays Harbor and 
  Thurston Counties.

.The Chehalis River will crest in minor flood stage this afternoon 
and will slowly recede tonight.

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 evening at 830 PM PST.

&&


WAC027-067-140445-
/O.EXT.KSEW.FL.W.0064.000000T0000Z-211114T1443Z/
/CGMW1.1.ER.211113T0745Z.211113T1830Z.211114T0543Z.NO/
1232 PM PST Sat Nov 13 2021

...FLOOD WARNING NOW IN EFFECT FROM THIS AFTERNOON THROUGH SUNDAY 
MORNING...

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

* WHERE...Chehalis River Above Grand Mound.

* WHEN...Until tomorrow morning.

* IMPACTS...At 141.0 feet, the Chehalis River in Thurston County 
  will flood several roads in Independence Valley including James 
  Road, Independence Road, and Moon road. Flood waters will also 
  cover nearby farm lands.

* ADDITIONAL DETAILS...
  - At 11:00 AM PST Saturday the stage was 141.4 feet.
  - Recent Activity...The maximum river stage in the 24 hours
    ending at 11:00 AM PST Saturday was 141.4 feet.
  - Forecast...The river is expected to fall below flood stage
    late this evening and continue falling to 138.5 feet late
    Tuesday evening.
  - Flood stage is 141.0 feet.
  - Flood History...No available flood history.
  - http://www.weather.gov/safety/flood

&&

LAT...LON 4672 12305 4677 12315 4682 12340 4693 12318
      4690 12304 4681 12289


$$

33

169 
WGUS86 KSEW 140358
FLSSEW

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

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

  Chehalis River Above Grand Mound affecting Grays Harbor and 
  Thurston Counties.

.The Chehalis River above Grand Mound will continue to slowly recede 
tonight.

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 Sunday morning at 600 AM PST.

&&


WAC027-067-141400-
/O.EXT.KSEW.FL.W.0064.000000T0000Z-211114T1420Z/
/CGMW1.1.ER.211113T0745Z.211113T1830Z.211114T0520Z.NO/
758 PM PST Sat Nov 13 2021

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

* WHAT...Minor flooding is occurring.

* WHERE...Chehalis River Above Grand Mound.

* WHEN...Until tomorrow morning.

* IMPACTS...At 141.0 feet, the Chehalis River in Thurston County 
  will flood several roads in Independence Valley including James 
  Road, Independence Road, and Moon road. Flood waters will also 
  cover nearby farm lands.

* ADDITIONAL DETAILS...
  - At 7:00 PM PST Saturday the stage was 141.1 feet.
  - Recent Activity...The maximum river stage in the 24 hours
    ending at 7:00 PM PST Saturday was 141.4 feet.
  - Forecast...The river is expected to fall below flood stage
    late this evening and continue falling to 138.0 feet early
    Wednesday morning.
  - Flood stage is 141.0 feet.
  - Flood History...No available flood history.
  - http://www.weather.gov/safety/flood

&&

LAT...LON 4672 12305 4677 12315 4682 12340 4693 12318
      4690 12304 4681 12289


$$

33

518 
WGUS86 KSEW 141207
FLSSEW

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

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

  Chehalis River Above Grand Mound affecting Grays Harbor and 
  Thurston Counties.

.The Chehalis River above Grand Mound will continue to slowly recede 
today.

WAC027-067-141315-
/O.CAN.KSEW.FL.W.0064.000000T0000Z-211114T1207Z/
/CGMW1.1.ER.211113T0745Z.211113T1830Z.211114T0515Z.NO/
407 AM PST Sun Nov 14 2021

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

The Flood Warning is cancelled for
  the Chehalis River Above Grand Mound.

* ADDITIONAL DETAILS...
  - At 4:00 AM PST Sunday the stage was 140.3 feet.
  - Forecast...The river is expected to continue to fall with any
    subsequent rises staying below flood stage.
  - http://www.weather.gov/safety/flood

&&

LAT...LON 4672 12305 4677 12315 4682 12340 4693 12318
      4690 12304 4681 12289


$$

JBB

The office that day

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

Issued	Product	Office	Counties	Lasted
Nov 11, 4:00 PM PST	River Flood Warning	SEW	Pierce	37 hr
Nov 11, 4:04 PM PST	River Flood Warning	SEW	King	37 hr
Nov 11, 7:57 PM PST	River Flood Warning	SEW	Lewis	41 hr
Nov 11, 8:20 PM PST	River Flood Warning	SEW	Pierce	30 hr
Nov 11, 8:52 PM PST	River Flood Warning	SEW	Lewis	4 days
Nov 11, 8:56 PM PST	River Flood Warning	SEW	Lewis	15 hr
Nov 12, 3:39 AM PST	River Flood Warning	SEW	Snohomish	22 hr
Nov 12, 3:39 AM PST	River Flood Warning	SEW	Snohomish	24 hr
Nov 12, 3:39 AM PST	River Flood Warning	SEW	Skagit	26 hr
Nov 12, 6:38 AM PST	River Flood Warning	SEW	King	45 hr
Nov 12, 1:23 PM PST	Areal Flood Advisory	SEW	King, Snohomish	3 hr
Nov 12, 1:40 PM PST	River Flood Warning	SEW	Pierce	15 hr
Nov 12, 1:46 PM PST	River Flood Warning	SEW	Snohomish	41 hr
Nov 12, 1:46 PM PST	River Flood Warning	SEW	Snohomish	23 hr
Nov 12, 2:24 PM PST	Gale Watch	SEW		12 hr
Nov 12, 2:24 PM PST	Small Craft Advisory	SEW		4 days

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.