Alert archive / Washington / River Flood Warnings in 2025

River Flood Warning 21, NWS Seattle, WA

December 8, 2025Lewis County, Pierce County, Washington

NWS Seattle, WA issued this river flood warning at Dec 8, 2025, 4:35 PM PST for Lewis County, Pierce County, Washington. It took effect at Dec 8, 2025, 8:56 PM PST. It was in force for 67 hr.

The area

The outline as issued.

The facts

Issued
Dec 8, 2025, 4:35 PM PST (00:35 UTC)
In effect from
Dec 8, 2025, 8:56 PM PST
Expired
Dec 11, 2025, 4:17 PM PST
In force
67 hr
Issued by
NWS Seattle, WA
Area
Storm-based polygon
Flood severity
Major

Counties Lewis County, WA, Pierce County, WA

The radar

The Portland,OR radar (KRTX), 141 km from the middle of the area, began a volume at 00:36 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 Nisqually River near National (NISW1). The gauge peaked at 11.61 ft at Dec 10, 2025, 6:00 AM PST.

68101212/0812/0912/1012/1112/1212/13

This gauge today: stage, forecast and historic crests

Stage from the USGS instantaneous record for site 12082500, 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.

493 
WGUS46 KSEW 090035
FLWSEW

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Flood Warning
National Weather Service Seattle WA
435 PM PST Mon Dec 8 2025

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

  Nisqually River Near National affecting Pierce and Lewis Counties.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

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

Additional information is available at www.weather.gov.

The next statement will be issued by late tonight at 1245 AM PST.

&&

WAC041-053-090845-
/O.NEW.KSEW.FL.W.0021.251209T0456Z-251212T0600Z/
/NISW1.3.ER.251209T0456Z.251211T0000Z.000000T0000Z.NO/
435 PM PST Mon Dec 8 2025

...FLOOD WARNING IN EFFECT FROM THIS EVENING TO LATE THURSDAY 
EVENING...

* WHAT...Major flooding is forecast.

* WHERE...Nisqually River near National.

* WHEN...From this evening to late Thursday evening.

* IMPACTS...At 15,000.0 cfs, the Nisqually River will cause major 
  flooding along the upper reaches of the river from Mt Rainier 
  National Park downstream to Alder Lake. Deep and swift flood 
  waters will inundate roads...pasture lands...and farms. The river 
  will likely overtop some levees.   Flooding will occur all along 
  the river including headwaters...tributaries...and other streams 
  within and near the Nisqually River Basin.

* ADDITIONAL DETAILS...
  - At 3:00 PM PST Monday the flow was 3,080.0 cfs.
  - Flood flow is 8,000.0 cfs.
  - Forecast...The river will rise above flood stage this evening
    to 13,554.0 cfs late tonight. It will then fall late tomorrow
    evening. It will rise to 15,907.4 cfs Wednesday afternoon. It
    will then fall again but remain above flood stage.
  - Flood History...This crest compares to a previous crest of
    15,000.0 cfs on 01/15/1974.
  - http://www.weather.gov/safety/flood

&&

LAT...LON 4674 12165 4664 12189 4670 12227 4683 12213
      4681 12198 4683 12187


$$

33
10 follow-up statements
046 
WGUS86 KSEW 090745
FLSSEW

Flood Statement
National Weather Service Seattle WA
1145 PM PST Mon Dec 8 2025

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

  Nisqually River Near National affecting Lewis and Pierce Counties.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

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

Additional information is available at www.weather.gov.

The next statement will be issued by Tuesday morning at 745 AM PST.

&&

WAC041-053-091545-
/O.EXT.KSEW.FL.W.0021.000000T0000Z-251212T1405Z/
/NISW1.3.ER.251209T0318Z.251211T0000Z.251212T0505Z.NO/
1145 PM PST Mon Dec 8 2025

...FLOOD WARNING NOW IN EFFECT UNTIL FRIDAY MORNING...

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

* WHERE...Nisqually River near National.

* WHEN...Until Friday morning.

* IMPACTS...At 15,000.0 cfs, the Nisqually River will cause major 
  flooding along the upper reaches of the river from Mt Rainier 
  National Park downstream to Alder Lake. Deep and swift flood 
  waters will inundate roads...pasture lands...and farms. The river 
  will likely overtop some levees.   Flooding will occur all along 
  the river including headwaters...tributaries...and other streams 
  within and near the Nisqually River Basin.

* ADDITIONAL DETAILS...
  - At 11:00 PM PST Monday the flow was 11,300.0 cfs.
  - Flood flow is 8,000.0 cfs.
  - Recent Activity...The maximum river flow in the 24 hours
    ending at 11:00 PM PST Monday was 11,500.0 cfs.
  - Forecast...The river will rise to 14500 cfs late tonight. It
    will then fall late tomorrow evening. It will rise to 16000
    cfs Wednesday afternoon. It will then fall below flood stage
    late Thursday evening.
  - Flood History...This crest compares to a previous crest of
    15,000.0 cfs on 01/15/1974.
  - http://www.weather.gov/safety/flood

&&

LAT...LON 4674 12165 4664 12189 4670 12227 4683 12213
      4681 12198 4683 12187


$$

62
449 
WGUS86 KSEW 091529
FLSSEW

Flood Statement
National Weather Service Seattle WA
729 AM PST Tue Dec 9 2025

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

  Puyallup River At Puyallup affecting Pierce County.

  South Prairie Creek at South Prairie affecting Pierce County.

  Puyallup River Near Orting affecting Pierce County.

  Nisqually River Near National affecting Pierce and Lewis Counties.

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 afternoon at 330 PM PST.

&&

WAC053-092330-
/O.EXT.KSEW.FL.W.0036.000000T0000Z-251212T1308Z/
/PUYW1.1.ER.251209T1420Z.251211T0600Z.251212T0408Z.NO/
729 AM PST Tue Dec 9 2025

...FLOOD WARNING NOW IN EFFECT UNTIL EARLY FRIDAY MORNING...

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

* WHERE...Puyallup River at Puyallup.

* WHEN...Until early Friday morning.

* IMPACTS...At 26.2 feet, the Puyallup River will flood low-lying 
  and flood prone areas along the river from just downstream and 
  west of the Meridian bridge in Puyallup...upstream to the east end 
  of Sumner.

* ADDITIONAL DETAILS...
  - At 6:45 AM PST Tuesday the stage was 26.2 feet.
  - Flood stage is 26.2 feet.
  - Recent Activity...The maximum river stage in the 24 hours
    ending at 6:45 AM PST Tuesday was 26.2 feet.
  - Forecast...The river will rise to 27.9 feet late this
    morning. It will then fall below flood stage this afternoon
    to 22.7 feet late this evening. It will rise above flood
    stage tomorrow morning to 29.2 feet late tomorrow evening. It
    will then fall below flood stage again Thursday evening.
  - Flood History...This crest compares to a previous crest of
    29.1 feet on 11/19/1915.
  - http://www.weather.gov/safety/flood

&&

LAT...LON 4712 12233 4717 12245 4728 12256 4739 12237
      4732 12229 4724 12219


$$

WAC053-092330-
/O.EXT.KSEW.FL.W.0024.000000T0000Z-251212T0743Z/
/SPEW1.2.ER.251209T0559Z.251211T0000Z.251211T2243Z.UU/
729 AM PST Tue Dec 9 2025

...FLOOD WARNING NOW IN EFFECT UNTIL LATE THURSDAY EVENING...

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

* WHERE...South Prairie Creek at South Prairie.

* WHEN...Until late Thursday evening.

* IMPACTS...At 5,500.0 cfs, South Prairie Creek will cause flooding 
  from above the Town of South Prairie downstream to the Carbon 
  River. Flood waters will inundate roads, residential areas, and 
  farms, including South Prairie - Carbon River Rd., South Prairie 
  Rd. East, Spring Site Rd., and SR 162.

* ADDITIONAL DETAILS...
  - At 5:45 AM PST Tuesday the flow was 4,270.0 cfs.
  - Flood flow is 4,000.0 cfs.
  - Recent Activity...The maximum river flow in the 24 hours
    ending at 5:45 AM PST Tuesday was 5,130.0 cfs.
  - Forecast...The river will rise to 4,350.7 cfs late this
    morning. It will then fall below flood stage late this
    morning to 2,671.9 cfs late this evening. It will rise above
    flood stage late tonight to 5,918.8 cfs tomorrow afternoon.
    It will then fall below flood stage again early Thursday
    afternoon.
  - Flood History...This crest compares to a previous crest of
    5,060.0 cfs on 10/31/2015.
  - http://www.weather.gov/safety/flood

&&

LAT...LON 4708 12205 4707 12207 4706 12208 4706 12210
      4708 12209 4709 12205


$$

WAC053-092330-
/O.EXT.KSEW.FL.W.0022.000000T0000Z-251212T0300Z/
/ORTW1.3.ER.251209T0630Z.251210T1800Z.251211T1800Z.NO/
729 AM PST Tue Dec 9 2025

...FLOOD WARNING NOW IN EFFECT UNTIL THURSDAY EVENING...

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

* WHERE...Puyallup River near Orting.

* WHEN...Until Thursday evening.

* IMPACTS...At 16,000.0 cfs, the Puyallup River will cause major 
  flooding from Orting downstream through McMillan to Sumner. Swift 
  and deep flood waters will inundate roads...residential areas...
  and farms. Erosion will likely damage levees.  Flooding will occur 
  all along the river including headwaters...tributaries...and other 
  streams within and near the Puyallup River Basin.

* ADDITIONAL DETAILS...
  - At 5:45 AM PST Tuesday the flow was 13,800.0 cfs.
  - Flood flow is 10,000.0 cfs.
  - Recent Activity...The maximum river flow in the 24 hours
    ending at 5:45 AM PST Tuesday was 17,600.0 cfs.
  - Forecast...The river will fall below flood stage this morning
    to 4,456.3 cfs late this afternoon. It will then rise above
    flood stage late this evening to 18,491.8 cfs late tomorrow
    morning. It will fall below flood stage again late Thursday
    morning.
  - Flood History...This crest compares to a previous crest of
    18,300.0 cfs on 02/08/1996.
  - http://www.weather.gov/safety/flood

&&

LAT...LON 4692 12227 4705 12228 4712 12233 4724 12219
      4715 12214 4700 12207


$$

WAC041-053-092330-
/O.EXT.KSEW.FL.W.0021.000000T0000Z-251212T1715Z/
/NISW1.3.ER.251209T0318Z.251211T0000Z.251212T0815Z.NO/
729 AM PST Tue Dec 9 2025

...FLOOD WARNING NOW IN EFFECT UNTIL LATE FRIDAY MORNING...

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

* WHERE...Nisqually River near National.

* WHEN...Until late Friday morning.

* IMPACTS...At 15,000.0 cfs, the Nisqually River will cause major 
  flooding along the upper reaches of the river from Mt Rainier 
  National Park downstream to Alder Lake. Deep and swift flood 
  waters will inundate roads...pasture lands...and farms. The river 
  will likely overtop some levees.   Flooding will occur all along 
  the river including headwaters...tributaries...and other streams 
  within and near the Nisqually River Basin.

* ADDITIONAL DETAILS...
  - At 5:00 AM PST Tuesday the flow was 10,600.0 cfs.
  - Flood flow is 8,000.0 cfs.
  - Recent Activity...The maximum river flow in the 24 hours
    ending at 5:00 AM PST Tuesday was 13,200.0 cfs.
  - Forecast...The river will fall below flood stage to 7,893.1
    cfs late this evening. It will then rise above flood stage
    late this evening to 17,166.3 cfs tomorrow afternoon. It will
    fall below flood stage again early Friday morning.
  - Flood History...This crest compares to a previous crest of
    17,100.0 cfs on 12/02/1977.
  - http://www.weather.gov/safety/flood

&&

LAT...LON 4674 12165 4664 12189 4670 12227 4683 12213
      4681 12198 4683 12187


$$

33
424 
WGUS86 KSEW 092259
FLSSEW

Flood Statement
National Weather Service Seattle WA
259 PM PST Tue Dec 9 2025

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

  Puyallup River At Puyallup affecting Pierce County.

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

  South Prairie Creek at South Prairie affecting Pierce County.

  Puyallup River Near Orting affecting Pierce County.

  Nisqually River Near National affecting Pierce and Lewis Counties.

  Chehalis River At Porter affecting Grays Harbor County.

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 1100 PM PST.

&&

WAC053-100700-
/O.EXT.KSEW.FL.W.0036.000000T0000Z-251212T1042Z/
/PUYW1.1.ER.251209T1420Z.251211T0000Z.251212T0142Z.NO/
259 PM PST Tue Dec 9 2025

...FLOOD WARNING NOW IN EFFECT UNTIL EARLY FRIDAY MORNING...

* WHAT...Minor flooding is forecast.

* WHERE...Puyallup River at Puyallup.

* WHEN...Until early Friday morning.

* IMPACTS...At 26.2 feet, the Puyallup River will flood low-lying 
  and flood prone areas along the river from just downstream and 
  west of the Meridian bridge in Puyallup...upstream to the east end 
  of Sumner.

* ADDITIONAL DETAILS...
  - At 2:45 PM PST Tuesday the stage was 23.2 feet.
  - Flood stage is 26.2 feet.
  - Forecast...The river is expected to rise above flood stage
    tomorrow morning to a crest of 28.3 feet tomorrow afternoon.
    It will then fall below flood stage Thursday afternoon.
  - Flood History...This crest compares to a previous crest of
    28.1 feet on 12/13/1916.
  - http://www.weather.gov/safety/flood

&&

LAT...LON 4712 12233 4717 12245 4728 12256 4739 12237
      4732 12229 4724 12219


$$

WAC053-100700-
/O.EXT.KSEW.FL.W.0024.000000T0000Z-251212T0748Z/
/SPEW1.2.ER.251209T0559Z.251211T0000Z.251211T2248Z.UU/
259 PM PST Tue Dec 9 2025

...FLOOD WARNING NOW IN EFFECT UNTIL LATE THURSDAY EVENING...

* WHAT...Moderate flooding is forecast.

* WHERE...South Prairie Creek at South Prairie.

* WHEN...Until late Thursday evening.

* IMPACTS...At 5,500.0 cfs, South Prairie Creek will cause flooding 
  from above the Town of South Prairie downstream to the Carbon 
  River. Flood waters will inundate roads, residential areas, and 
  farms, including South Prairie - Carbon River Rd., South Prairie 
  Rd. East, Spring Site Rd., and SR 162.

* ADDITIONAL DETAILS...
  - At 1:45 PM PST Tuesday the flow was 2,320.0 cfs.
  - Flood flow is 4,000.0 cfs.
  - Forecast...The river is expected to rise above flood stage
    late tonight to a crest of 5,904.5 cfs tomorrow afternoon. It
    will then fall below flood stage early Thursday afternoon.
  - Flood History...This crest compares to a previous crest of
    5,060.0 cfs on 10/31/2015.
  - http://www.weather.gov/safety/flood

&&

LAT...LON 4708 12205 4707 12207 4706 12208 4706 12210
      4708 12209 4709 12205


$$

WAC053-100700-
/O.EXT.KSEW.FL.W.0022.000000T0000Z-251212T0309Z/
/ORTW1.3.ER.251209T0630Z.251210T1800Z.251211T1809Z.NO/
259 PM PST Tue Dec 9 2025

...FLOOD WARNING NOW IN EFFECT UNTIL THURSDAY EVENING...

* WHAT...Major flooding is forecast.

* WHERE...Puyallup River near Orting.

* WHEN...Until Thursday evening.

* IMPACTS...At 16,000.0 cfs, the Puyallup River will cause major 
  flooding from Orting downstream through McMillan to Sumner. Swift 
  and deep flood waters will inundate roads...residential areas...
  and farms. Erosion will likely damage levees.  Flooding will occur 
  all along the river including headwaters...tributaries...and other 
  streams within and near the Puyallup River Basin.

* ADDITIONAL DETAILS...
  - At 2:15 PM PST Tuesday the flow was 6,390.0 cfs.
  - Flood flow is 10,000.0 cfs.
  - Forecast...The river is expected to rise above flood stage
    late this evening to a crest of 18,542.3 cfs late tomorrow
    morning. It will then fall below flood stage late Thursday
    morning.
  - Flood History...This crest compares to a previous crest of
    18,300.0 cfs on 02/08/1996.
  - http://www.weather.gov/safety/flood

&&

LAT...LON 4692 12227 4705 12228 4712 12233 4724 12219
      4715 12214 4700 12207


$$

WAC041-053-100700-
/O.EXT.KSEW.FL.W.0021.000000T0000Z-251212T1719Z/
/NISW1.3.ER.251209T0318Z.251211T0000Z.251212T0819Z.NO/
259 PM PST Tue Dec 9 2025

...FLOOD WARNING NOW IN EFFECT UNTIL LATE FRIDAY MORNING...

* WHAT...Major flooding is forecast.

* WHERE...Nisqually River near National.

* WHEN...Until late Friday morning.

* IMPACTS...At 15,000.0 cfs, the Nisqually River will cause major 
  flooding along the upper reaches of the river from Mt Rainier 
  National Park downstream to Alder Lake. Deep and swift flood 
  waters will inundate roads...pasture lands...and farms. The river 
  will likely overtop some levees.   Flooding will occur all along 
  the river including headwaters...tributaries...and other streams 
  within and near the Nisqually River Basin.

* ADDITIONAL DETAILS...
  - At 2:00 PM PST Tuesday the flow was 4,900.0 cfs.
  - Flood flow is 8,000.0 cfs.
  - Forecast...The river is expected to rise above flood stage
    late this evening to a crest of 16,912.5 cfs tomorrow
    afternoon. It will then fall below flood stage early Friday
    morning.
  - Flood History...This crest compares to a previous crest of
    16,500.0 cfs on 11/29/1995.
  - http://www.weather.gov/safety/flood

&&

LAT...LON 4674 12165 4664 12189 4670 12227 4683 12213
      4681 12198 4683 12187


$$

WAC027-100700-
/O.EXT.KSEW.FL.W.0041.251210T0021Z-000000T0000Z/
/CRPW1.2.ER.251210T0021Z.251212T1200Z.000000T0000Z.NO/
259 PM PST Tue Dec 9 2025

...FLOOD WARNING NOW IN EFFECT FROM THIS AFTERNOON UNTIL FURTHER 
NOTICE...

* WHAT...Moderate flooding is forecast.

* WHERE...Chehalis River at Porter.

* WHEN...From this afternoon until further notice.

* IMPACTS...At 50.0 feet, feet...the Chehalis River in Grays Harbor 
  will flood numerous farms and roads including SR 12. High tidal 
  levels at Aberdeen will worsen flooding along the lower reaches.

* ADDITIONAL DETAILS...
  - At 1:45 PM PST Tuesday the stage was 47.5 feet.
  - Flood stage is 48.0 feet.
  - Forecast...The river is expected to rise above flood stage
    late this afternoon and continue rising to a crest of 50.3
    feet early Friday morning.
  - 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
262 
WGUS86 KSEW 100356
FLSSEW

Flood Statement
National Weather Service Seattle WA
756 PM PST Tue Dec 9 2025

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

  Nisqually River Near National affecting Pierce and Lewis Counties.

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

  White River At R Street Bridge affecting King and Pierce Counties.

.Another round of even heavier rain will impact the region tonight 
into tomorrow, driving rivers up again with a new round of flooding.

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 late tonight at 400 AM PST.

&&

WAC041-053-101200-
/O.EXT.KSEW.FL.W.0021.000000T0000Z-251212T1949Z/
/NISW1.3.ER.251209T0318Z.251211T1200Z.251212T1049Z.NO/
756 PM PST Tue Dec 9 2025

...FLOOD WARNING NOW IN EFFECT UNTIL LATE FRIDAY MORNING...

* WHAT...Major flooding is forecast.

* WHERE...Nisqually River near National.

* WHEN...Until late Friday morning.

* IMPACTS...At 15,000.0 cfs, the Nisqually River will cause major 
  flooding along the upper reaches of the river from Mt Rainier 
  National Park downstream to Alder Lake. Deep and swift flood 
  waters will inundate roads...pasture lands...and farms. The river 
  will likely overtop some levees.   Flooding will occur all along 
  the river including headwaters...tributaries...and other streams 
  within and near the Nisqually River Basin.

* ADDITIONAL DETAILS...
  - At 7:00 PM PST Tuesday the flow was 4,720.0 cfs.
  - Flood flow is 8,000.0 cfs.
  - Forecast...The river is expected to rise above flood stage
    just after midnight tonight to a crest of 18,5200 cfs early
    Thursday morning. It will then fall below flood stage early
    Friday morning.
  - http://www.weather.gov/safety/flood

&&

LAT...LON 4674 12165 4664 12189 4670 12227 4683 12213
      4681 12198 4683 12187


$$

WAC033-053-101200-
/O.CON.KSEW.FL.W.0044.000000T0000Z-000000T0000Z/
/WRAW1.1.ER.251209T1916Z.251212T0000Z.000000T0000Z.UU/
756 PM PST Tue Dec 9 2025

...FLOOD WARNING REMAINS IN EFFECT UNTIL FURTHER NOTICE...

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

* WHERE...White River at R Street Bridge.

* WHEN...Until further notice.

* IMPACTS...At 7500.0 feet, River flooding is likely to occur near 
  low bank areas around and downstream of the Stewart Streat Bridge 
  in the city of Sumner.

* ADDITIONAL DETAILS...
  - At 6:45 PM PST Tuesday the flow was 8,080.0 cfs.
  - Flood flow is 7,500.0 cfs.
  - Recent Activity...The maximum river flow in the 24 hours
    ending at 6:45 PM PST Tuesday was 8,410.0 cfs.
  - Forecast...The river will rise to 8,460 cfs late this
    evening. It will then fall late tonight. It will rise to
    8,946.4 cfs Thursday afternoon. It will then fall again but
    remain above flood stage.
  - http://www.weather.gov/safety/flood

&&

LAT...LON 4721 12214 4724 12219 4719 12223 4724 12230
      4732 12226 4732 12214


$$

JBB
384 
WGUS86 KSEW 101115
FLSSEW

Flood Statement
National Weather Service Seattle WA
315 AM PST Wed Dec 10 2025

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

  Satsop River Near Satsop affecting Grays Harbor County.

  Snoqualmie River Near Snoqualmie Falls affecting King County.

  White River At R Street Bridge affecting King and Pierce Counties.

  Nisqually River Near National affecting Lewis and Pierce Counties.

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.

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

Additional information is available at www.weather.gov.

The next statement will be issued by this morning at 1115 AM PST.

&&

WAC027-101915-
/O.EXT.KSEW.FL.W.0034.000000T0000Z-251212T0710Z/
/SATW1.1.ER.251209T0854Z.251211T1200Z.251212T0310Z.NO/
315 AM PST Wed Dec 10 2025

...FLOOD WARNING NOW IN EFFECT UNTIL LATE TOMORROW EVENING...

* WHAT...Minor flooding is forecast.

* WHERE...Satsop River near Satsop.

* WHEN...Until late tomorrow evening.

* IMPACTS...At 38.0 feet, the Satsop River will flood low pasture 
  lands and some roads along the river.

* ADDITIONAL DETAILS...
  - At 2:15 AM PST Wednesday the stage was 35.1 feet.
  - Flood stage is 38.0 feet.
  - Forecast...The river is expected to rise above flood stage
    this afternoon to a crest of 39.9 feet late tonight. It will
    then fall below flood stage tomorrow evening.
  - Flood History...This crest compares to a previous crest of
    38.9 feet on 01/22/1935.
  - http://www.weather.gov/safety/flood

&&

LAT...LON 4696 12345 4696 12354 4702 12354 4708 12354
      4708 12345 4702 12345


$$

WAC033-101915-
/O.EXT.KSEW.FL.W.0027.000000T0000Z-251212T1403Z/
/SQUW1.3.ER.251209T0540Z.251211T0600Z.251212T0503Z.NO/
315 AM PST Wed Dec 10 2025

...FLOOD WARNING NOW IN EFFECT UNTIL FRIDAY MORNING...

* WHAT...Major flooding is forecast.

* WHERE...Snoqualmie River near Snoqualmie Falls.

* WHEN...Until Friday morning.

* IMPACTS...At 55,000.0 cfs, the Snoqualmie River will cause major 
  flooding from the town of Snoqualmie downstream through Fall 
  City...inundating most of the farm land in the flood plain...some 
  residential areas...and many roads. Flood waters will be deep and 
  swift in some areas. Flooding will occur all along the river 
  including headwaters...tributaries...and other streams within and 
  near the Snoqualmie River Basin. This river level on the 
  Snoqualmie corresponds roughly to a phase 4 flood in the King 
  County flood system.

* ADDITIONAL DETAILS...
  - At 1:30 AM PST Wednesday the flow was 11,400.0 cfs.
  - Flood flow is 20,000.0 cfs.
  - Forecast...The river is expected to rise above flood stage
    early this morning to a crest of 58,057.8 cfs late this
    evening. It will then fall below flood stage late tomorrow
    evening.
  - Flood History...This crest compares to a previous crest of
    53,800.0 cfs on 12/02/1977.
  - http://www.weather.gov/safety/flood

&&

LAT...LON 4742 12175 4752 12186 4756 12196 4761 12188
      4758 12178 4756 12170


$$

WAC033-053-101915-
/O.CON.KSEW.FL.W.0044.000000T0000Z-000000T0000Z/
/WRAW1.1.ER.251209T1916Z.251212T0000Z.000000T0000Z.UU/
315 AM PST Wed Dec 10 2025

...FLOOD WARNING REMAINS IN EFFECT UNTIL FURTHER NOTICE...

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

* WHERE...White River at R Street Bridge.

* WHEN...Until further notice.

* ADDITIONAL DETAILS...
  - At 1:45 AM PST Wednesday the flow was 8,330.0 cfs.
  - Flood flow is 7,500.0 cfs.
  - Recent Activity...The maximum river flow in the 24 hours
    ending at 1:45 AM PST Wednesday was 8,540.0 cfs.
  - Forecast...The river is expected to rise to a crest of
    9,304.9 cfs tomorrow afternoon.
  - Flood History...This crest compares to a previous crest of
    8,080.0 cfs on 02/06/2020.
  - http://www.weather.gov/safety/flood

&&

LAT...LON 4721 12214 4724 12219 4719 12223 4724 12230
      4732 12226 4732 12214


$$

WAC041-053-101915-
/O.CON.KSEW.FL.W.0021.000000T0000Z-251212T1949Z/
/NISW1.3.ER.251209T0318Z.251211T1200Z.251212T1049Z.NO/
315 AM PST Wed Dec 10 2025

...FLOOD WARNING REMAINS IN EFFECT UNTIL LATE FRIDAY MORNING...

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

* WHERE...Nisqually River near National.

* WHEN...Until late Friday morning.

* IMPACTS...At 15,000.0 cfs, the Nisqually River will cause major 
  flooding along the upper reaches of the river from Mt Rainier 
  National Park downstream to Alder Lake. Deep and swift flood 
  waters will inundate roads...pasture lands...and farms. The river 
  will likely overtop some levees.   Flooding will occur all along 
  the river including headwaters...tributaries...and other streams 
  within and near the Nisqually River Basin.

* ADDITIONAL DETAILS...
  - At 2:00 AM PST Wednesday the flow was 9,690.0 cfs.
  - Flood flow is 8,000.0 cfs.
  - Recent Activity...The maximum river flow in the 24 hours
    ending at 2:00 AM PST Wednesday was 9,690.0 cfs.
  - Forecast...The river is expected to rise to a crest of
    18,528.9 cfs late tonight. It will then fall below flood
    stage early Friday morning.
  - Flood History...This crest compares to a previous crest of
    17,100.0 cfs on 12/02/1977.
  - http://www.weather.gov/safety/flood

&&

LAT...LON 4674 12165 4664 12189 4670 12227 4683 12213
      4681 12198 4683 12187


$$

27
990 
WGUS86 KSEW 101837
FLSSEW

Flood Statement
National Weather Service Seattle WA
1037 AM PST Wed Dec 10 2025

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

  Satsop River Near Satsop affecting Grays Harbor County.

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

  Snoqualmie River Near Snoqualmie Falls affecting King County.

  Nisqually River Near National affecting Pierce and Lewis Counties.

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 645 PM PST.

&&

WAC027-110245-
/O.EXT.KSEW.FL.W.0034.000000T0000Z-251212T0631Z/
/SATW1.1.ER.251209T0854Z.251211T0600Z.251212T0231Z.NO/
1037 AM PST Wed Dec 10 2025

...FLOOD WARNING NOW IN EFFECT UNTIL LATE TOMORROW EVENING...

* WHAT...Minor flooding is forecast.

* WHERE...Satsop River near Satsop.

* WHEN...Until late tomorrow evening.

* IMPACTS...At 38.0 feet, the Satsop River will flood low pasture 
  lands and some roads along the river.

* ADDITIONAL DETAILS...
  - At 10:15 AM PST Wednesday the stage was 37.6 feet.
  - Flood stage is 38.0 feet.
  - Forecast...The river is expected to rise above flood stage
    this afternoon to a crest of 39.8 feet late this evening. It
    will then fall below flood stage tomorrow evening.
  - Flood History...This crest compares to a previous crest of
    38.9 feet on 01/22/1935.
  - http://www.weather.gov/safety/flood

&&

LAT...LON 4696 12345 4696 12354 4702 12354 4708 12354
      4708 12345 4702 12345


$$

WAC033-110245-
/O.EXT.KSEW.FL.W.0027.000000T0000Z-251212T1422Z/
/SQUW1.3.ER.251209T0540Z.251211T0600Z.251212T0522Z.NO/
1037 AM PST Wed Dec 10 2025

...FLOOD WARNING NOW IN EFFECT UNTIL FRIDAY MORNING...

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

* WHERE...Snoqualmie River near Snoqualmie Falls.

* WHEN...Until Friday morning.

* IMPACTS...At 55,000.0 cfs, the Snoqualmie River will cause major 
  flooding from the town of Snoqualmie downstream through Fall 
  City...inundating most of the farm land in the flood plain...some 
  residential areas...and many roads. Flood waters will be deep and 
  swift in some areas. Flooding will occur all along the river 
  including headwaters...tributaries...and other streams within and 
  near the Snoqualmie River Basin. This river level on the 
  Snoqualmie corresponds roughly to a phase 4 flood in the King 
  County flood system.

* ADDITIONAL DETAILS...
  - At 10:00 AM PST Wednesday the flow was 34,600.0 cfs.
  - Flood flow is 20,000.0 cfs.
  - Recent Activity...The maximum river flow in the 24 hours
    ending at 10:00 AM PST Wednesday was 34,600.0 cfs.
  - Forecast...The river will rise to 65,137.5 cfs late this
    evening. It will then fall late tonight. It will rise to
    62,723.2 cfs late tomorrow morning. It will then fall below
    flood stage late tomorrow evening.
  - Flood History...This crest compares to a previous crest of
    61,000.0 cfs on 11/23/1959.
  - http://www.weather.gov/safety/flood

&&

LAT...LON 4742 12175 4752 12186 4756 12196 4761 12188
      4758 12178 4756 12170


$$

WAC041-053-110245-
/O.EXT.KSEW.FL.W.0021.000000T0000Z-251212T2043Z/
/NISW1.3.ER.251209T0318Z.251211T1800Z.251212T1143Z.NO/
1037 AM PST Wed Dec 10 2025

...FLOOD WARNING NOW IN EFFECT UNTIL EARLY FRIDAY AFTERNOON...

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

* WHERE...Nisqually River near National.

* WHEN...Until early Friday afternoon.

* IMPACTS...At 15,000.0 cfs, the Nisqually River will cause major 
  flooding along the upper reaches of the river from Mt Rainier 
  National Park downstream to Alder Lake. Deep and swift flood 
  waters will inundate roads...pasture lands...and farms. The river 
  will likely overtop some levees.   Flooding will occur all along 
  the river including headwaters...tributaries...and other streams 
  within and near the Nisqually River Basin.

* ADDITIONAL DETAILS...
  - At 10:00 AM PST Wednesday the flow was 11,400.0 cfs.
  - Flood flow is 8,000.0 cfs.
  - Recent Activity...The maximum river flow in the 24 hours
    ending at 10:00 AM PST Wednesday was 15,000.0 cfs.
  - Forecast...The river will rise to 16,270.3 cfs late this
    afternoon. It will then fall late this evening. It will rise
    to 17,562.4 cfs late tomorrow morning. It will then fall
    below flood stage early Friday morning.
  - Flood History...This crest compares to a previous crest of
    17,100.0 cfs on 12/02/1977.
  - http://www.weather.gov/safety/flood

&&

LAT...LON 4674 12165 4664 12189 4670 12227 4683 12213
      4681 12198 4683 12187


$$

33
383 
WGUS86 KSEW 110202
FLSSEW

Flood Statement
National Weather Service Seattle WA
602 PM PST Wed Dec 10 2025

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

  Nisqually River Near National affecting Lewis and Pierce Counties.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

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

Additional information is available at www.weather.gov.

The next statement will be issued by 200 AM PST Thursday.late 
tonight at 215 AM PST.

&&

WAC041-053-111015-
/O.CON.KSEW.FL.W.0021.000000T0000Z-251212T2043Z/
/NISW1.2.ER.251209T0318Z.251210T1415Z.251212T0859Z.NO/
602 PM PST Wed Dec 10 2025

...FLOOD WARNING REMAINS IN EFFECT UNTIL EARLY FRIDAY AFTERNOON...

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

* WHERE...Nisqually River near National.

* WHEN...Until early Friday afternoon.

* IMPACTS...At 10,000.0 cfs, the Nisqually River will flood along 
  the upper reaches of the river from Mt Rainier National Park 
  downstream to Alder Lake. Swift waters will flood roads...pasture 
  lands...and farms. Erosion may damage the river banks.

* ADDITIONAL DETAILS...
  - At 5:00 PM PST Wednesday the flow was 8,754.0 cfs.
  - Flood flow is 8,000.0 cfs.
  - Recent Activity...The maximum river flow in the 24 hours
    ending at 5:00 PM PST Wednesday was 15,000.0 cfs.
  - Forecast...The river is expected to crest at 13,400 cfs
    Thursday morning. It will then fall below flood stage early
    Friday morning.
  - http://www.weather.gov/safety/flood

&&

LAT...LON 4674 12165 4664 12189 4670 12227 4683 12213
      4681 12198 4683 12187


$$

18
055 
WGUS86 KSEW 110906
FLSSEW

Flood Statement
National Weather Service Seattle WA
106 AM PST Thu Dec 11 2025

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

  Nisqually River Near National affecting Pierce and Lewis Counties.

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 915 AM PST.

&&

WAC041-053-111715-
/O.EXT.KSEW.FL.W.0021.000000T0000Z-251212T1624Z/
/NISW1.2.ER.251209T0318Z.251210T1415Z.251212T0724Z.NO/
106 AM PST Thu Dec 11 2025

...FLOOD WARNING NOW IN EFFECT UNTIL TOMORROW MORNING...

* WHAT...Moderate flooding is forecast.

* WHERE...Nisqually River near National.

* WHEN...Until tomorrow morning.

* IMPACTS...At 10,000.0 cfs, the Nisqually River will flood along 
  the upper reaches of the river from Mt Rainier National Park 
  downstream to Alder Lake. Swift waters will flood roads...pasture 
  lands...and farms. Erosion may damage the river banks.

* ADDITIONAL DETAILS...
  - At 12:00 AM PST Thursday the flow was 6,540.0 cfs.
  - Flood flow is 8,000.0 cfs.
  - Forecast...The river is expected to rise above flood stage
    early this morning to a crest of 11,800.0 cfs late this
    morning. It will then fall below flood stage late this
    evening.
  - Flood History...This crest compares to a previous crest of
    11,600.0 cfs on 12/26/1980.
  - http://www.weather.gov/safety/flood

&&

LAT...LON 4674 12165 4664 12189 4670 12227 4683 12213
      4681 12198 4683 12187


$$

15
995 
WGUS86 KSEW 111640
FLSSEW

Flood Statement
National Weather Service Seattle WA
840 AM PST Thu Dec 11 2025

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

  Nisqually River Near National affecting Lewis and Pierce Counties.

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 afternoon at 445 PM PST.

&&

WAC041-053-120045-
/O.EXT.KSEW.FL.W.0021.000000T0000Z-251212T1611Z/
/NISW1.2.ER.251209T0318Z.251210T1415Z.251212T0711Z.NO/
840 AM PST Thu Dec 11 2025

...FLOOD WARNING NOW IN EFFECT UNTIL TOMORROW MORNING...

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

* WHERE...Nisqually River near National.

* WHEN...Until tomorrow morning.

* IMPACTS...At 10,000.0 cfs, the Nisqually River will flood along 
  the upper reaches of the river from Mt Rainier National Park 
  downstream to Alder Lake. Swift waters will flood roads...pasture 
  lands...and farms. Erosion may damage the river banks.

* ADDITIONAL DETAILS...
  - At 8:00 AM PST Thursday the flow was 8,090.0 cfs.
  - Flood flow is 8,000.0 cfs.
  - Recent Activity...The maximum river flow in the 24 hours
    ending at 8:00 AM PST Thursday was 9,300.0 cfs.
  - Forecast...The river is expected to rise to a crest of
    10,150.7 cfs late this afternoon. It will then fall below
    flood stage late this evening.
  - Flood History...This crest compares to a previous crest of
    9,830.0 cfs on 11/24/1986.
  - http://www.weather.gov/safety/flood

&&

LAT...LON 4674 12165 4664 12189 4670 12227 4683 12213
      4681 12198 4683 12187


$$

33
519 
WGUS86 KSEW 120017
FLSSEW

Flood Statement
National Weather Service Seattle WA
417 PM PST Thu Dec 11 2025

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

  Nisqually River Near National affecting Lewis and Pierce Counties.

.The Nisqually River will continue to recede.

WAC041-053-120130-
/O.CAN.KSEW.FL.W.0021.000000T0000Z-251212T0017Z/
/NISW1.2.ER.251209T0318Z.251210T1415Z.251211T1947Z.NO/
417 PM PST Thu Dec 11 2025

...FLOOD WARNING IS CANCELLED...

The Flood Warning is cancelled for
  the Nisqually River Near National.

* ADDITIONAL DETAILS...
  - At 3:00 PM PST Thursday the flow was 6,660.0 cfs.
  - Forecast...The river is expected to fall to 1,344.5 cfs
    Sunday afternoon.
  - http://www.weather.gov/safety/flood

&&

LAT...LON 4674 12165 4664 12189 4670 12227 4683 12213
      4681 12198 4683 12187


$$

33

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 Dec 8, 3:13 PM PST, 1 hour 22 minutes earlier.

Area forecast discussion, Dec 8, 3:13 PM PST, 1 hour 22 minutes before
Area Forecast Discussion
National Weather Service Seattle WA
313 PM PST Mon Dec 8 2025

.SYNOPSIS...
A strong atmospheric river has moved into the region, and will
bring periods of moderate to heavy rainfall and gusty winds to
western Washington through Wednesday. There remains high risk
of widespread and significant river flooding across the region
through much of the week. Minor coastal flooding due to high
astronomical high tides will also remain possible for the Salish
Sea coastlines through the first part of the week. Wet and
unsettled conditions will continue through the end of the week.

&&

.SHORT TERM /TONIGHT THROUGH WEDNESDAY NIGHT/...

Precipitation associated with a strong atmospheric river has
moved into the Pacific Northwest this afternoon, and is expected
to affect the region directly through Wednesday, and indirectly
through the remainder of the week. The key messages regarding
this system are highlighted below:

* HEAVY RAIN: Extended periods of moderate to heavy rain to
  western Washington through Wednesday. Latest forecast models
  have remained fairly consistent, with the heaviest rainfall
  arriving today. The moisture plume still looks to briefly
  shift southward early Tuesday, easing accumulations for some
  areas before lifting back northward late Tuesday through
  Wednesday. While areas east of the Olympics will likely see
  some shadowing at the onset of precipitation, conditions
  across all of western Washington will be very wet through
  Wednesday. Areas generally south of Seattle will see 3 to 6
  inches of rainfall through Thursday morning in a 72 hour
  period, with the Olympics and Cascades on track to see 8 to 12
  inches of rain in this timeframe. Locally higher amounts are
  possible over the southern and central Cascades, where amounts
  could reach 15 inches or more in 72 hours. This is expected
  to bring significant river flooding to western Washington,
  with many area rivers forecast to reach moderate or major
  flood stage by mid-week. A Flood Watch remains in effect for
  all of western Washington through Friday morning. For more
  details, see the HYDROLOGY section below.

* WIND: Conditions will be windy area-wide today, with
  southwesterly winds picking up throughout the day. Winds will
  peak late in the afternoon and evening, with the strongest
  gusts along the Pacific Coast reaching 50-55 mph. Gusts
  elsewhere across the interior will reach 40-45 mph at times.
  Winds will gradually ease into Tuesday, but conditions will
  remain breezy at times.

* COASTAL FLOODING: Minor coastal flooding remains possible
  along the Salish Sea coastlines through the first half of the
  week with high astronomical tides. While the tides will
  generally remain below or nearing thresholds, heightened river
  flows or wind effects could exacerbate inundation in some
  areas around high tide.

In addition, snow levels will briefly lower to near 3500-4000
feet over the mountains early Tuesday, resulting in
minor accumulating snow generally above 4500 feet. The higher
mountain passes, including Stevens Pass and White Pass, will
likely see a few inches of snow accumulation throughout the day
Tuesday which could cause brief slippery travel conditions.

The returning surge of moisture later Tuesday afternoon will
bring warmer temperatures and higher snow levels through the
week. Temperatures will peak well above normal most days this
week, with temperatures in the low to upper 50s across the
lowlands.

&&

.LONG TERM /THURSDAY THROUGH MONDAY/...
Unsettled conditions continue to be expected into the weekend,
though precipitation amounts will start to taper across western
Washington by Thursday. It is likely that impacts like lingering
river flooding and elevated landslide risk will linger through
Thursday for many areas. Ensembles a system likely to brush the
area Thursday, with extended long range ensembles hinting at a
break Friday, followed by another stronger system likely
focused to the north over British Columbia early Saturday and
then possibly Western Washington Saturday into Sunday.

15

.AVIATION...
The first frontal system from an atmospheric river continues to
progress across the terminals this afternoon. Moderate to heavy rain
will continue to fall across the terminals this afternoon and
evening, with varying reduced visibilities down to 2-4 SM, and
ceilings continuing to vary between MVFR and IFR. Winds will also
peaking this afternoon with gusts out of the southwest with gusts up
to 30-40 kt being observed. Later this evening, NW winds will pick
up in the Strait of Juan de Fuca. The diffluence from the winds will
likely turn winds NW in the Puget Sound terminals from 06-12Z. All
winds will decrease down to 5-10 kt out of the south late
tonight/Tuesday morning. MVFR to IFR cigs will continue into Tuesday
morning, with lower visibilities (mist) also lingering into Tuesday
morning in the south interior and coast. Ceilings will improve to
MVFR/VFR through the day. Next round of moderate to heavy rain will
arrive from the SW from 22Z Tuesday onwards, with ceilings lowering
to IFR, reduced visibilities, and SW winds increasing again to 20-30
kt late Tuesday.

KSEA...Low MVFR/IFR will continue through the evening with rain
lingering through Tuesday morning (~12Z). Some of the rain may be
heavy at times, reducing visibilities down to IFR. SW winds 15-20 kt
gusting to 30 kt will continue through the evening. A period of N
winds is likely from 06Z-12Z (due to diffluence from the Strait of
Juan de Fuca), with gusts up to 20 kt still possible as winds turn,
but should decrease to 6-10 kt. From 12Z onwards, south winds 6-10
kt gusting to 15 kt will continue through 20Z, with winds decreasing
to 4-8 kt. Another round of gusty winds are expected after 00Z 10-15
kt gusting to 25 kt. MVFR ceilings will continue through tonight and
into Tuesday. Moderate to heavy rain arrives with round 2 around 00Z
Wednesday.

HPR

&&

.MARINE...
The first frontal system from an atmospheric river continues to
impact area waters today. The areas with the breeziest SW winds this
afternoon are the coastal waters and the interior waters. As the
cold front kicks in, strong west winds will pick up in the Strait of
Juan de Fuca through tonight. The wind threat will end early Tuesday
morning across all waters as winds decrease behind the cold front.
Hazards were adjusted to account for the extended duration of winds
behind the front, and also seas of 10-15 ft dropping to 9-12 ft
Tuesday. Heavy rain will continue tonight into Tuesday morning,
which may reduce visibilities at times. The next system arrives late
Tuesday night through Thursday, with more moderate to heavy rain,
breezy winds southwest winds (most likely remaining below gale force
at this time, but most hazardous to small craft), and seas remaining
above 10 ft through Thursday at 9-11 ft, decreasing to 4-6 ft Friday
through Saturday. Another system will increase seas and winds early
next week.

HPR

.HYDROLOGY...
A strong atmospheric atmospheric will move through
the Pacific Northwest through Wednesday, bringing significant
heavy rainfall across the area. 72-hour precipitation amounts
between ending Thursday morning will likely reach 2 to 6 inches
across the lowlands, with 6 to 10 inches over the Olympics and
Cascades with locally higher amounts up to 12 inches over the
central and southern Cascades. Rivers will start to sharply rise
tonight, with many area rivers reaching flood stage by later
this evening. Confidence remains high that a widespread
significant river flooding event will commence late Monday and
continue through much of the week.

Many rivers flowing off the Cascades and the Olympics are
forecast to reach Minor, Moderate, and Major flood stage between
this evening and Tuesday, where many of them are forecast to
remain through Thursday. While some uncertainty does still
remain in regards to the exact flood levels and stages through
the next week, it will be critical to monitor the forecasts now
and through the next seven days. Additional precipitation is
also possible Thursday into Friday, which may keep rivers
elevated heading into the weekend. A Flood Watch remains in
effect across all of western Washington through Friday.

With the wet antecedent soil conditions, the landslide threat
across the region will increase with this system. Potential has
also increased for debris flows over area burn scars, which will
continue to be monitored.

Urban and small stream flooding, as well as areas with poor
drainage, should be alert to the potential for localized nuisance
flooding and ponding on roadways. Low water crossings may become
impacted or impassable.

&&

.SEW WATCHES/WARNINGS/ADVISORIES...
WA...Wind Advisory until 10 PM PST this evening for City of Seattle-
     Downtown Everett / Marysville Area-Eastern Kitsap County-
     Eastern Strait of Juan de Fuca-Eastside-Foothills and
     Valleys of Central King County-Foothills and Valleys of
     Pierce and Southern King Counties-Foothills and Valleys
     of Snohomish and Northern King Counties-Foothills and
     Valleys of Thurston and Lewis Counties-Foothills and
     Valleys of the North Cascades-Foothills of the Western
     and Southern Olympic Peninsula-Grays Harbor County Coast-
     Island County-Lake Crescent Area Including US 101-Lower
     Chehalis River Valley-Lowlands of Lewis and Southern
     Thurston Counties-Lowlands of Pierce and Southern King
     Counties-Lowlands of Western Skagit and Northwestern
     Snohomish Counties-Lowlands of Western Whatcom County-
     Middle Chehalis River Valley-Northern Hood Canal-Northern
     Washington Coast-Olympia and Southern Puget Sound-Port
     Townsend Area-San Juan County-Shoreline / Lynnwood /
     South Everett Area-Southern Hood Canal-Western Strait of
     Juan de Fuca-Willapa and Black Hills.

     Flood Watch through Friday afternoon for Cascades of Pierce
     and Lewis Counties-Cascades of Snohomish and Northern
     King Counties-Cascades of Southern King County-Cascades
     of Whatcom and Skagit Counties-City of Seattle-Downtown
     Everett / Marysville Area-Eastern Kitsap County-Eastern
     Strait of Juan de Fuca-Eastside-Foothills and Valleys of
     Central King County-Foothills and Valleys of Pierce and
     Southern King Counties-Foothills and Valleys of Snohomish
     and Northern King Counties-Foothills and Valleys of
     Thurston and Lewis Counties-Foothills and Valleys of the
     North Cascades-Foothills of the Western and Southern
     Olympic Peninsula-Grays Harbor County Coast-Island County-
     Lake Crescent Area Including US 101-Lower Chehalis River
     Valley-Lowlands of Lewis and Southern Thurston Counties-
     Lowlands of Pierce and Southern King Counties-Lowlands of
     Western Skagit and Northwestern Snohomish Counties-
     Lowlands of Western Whatcom County-Middle Chehalis River
     Valley-Northern Hood Canal-Northern Washington Coast-
     Olympia and Southern Puget Sound-Olympics-Port Townsend
     Area-San Juan County-Shoreline / Lynnwood / South Everett
     Area-Southern Hood Canal-Western Strait of Juan de Fuca-
     Willapa and Black Hills.

PZ...Small Craft Advisory until 7 PM PST Tuesday for Grays Harbor
     Bar.

     Gale Warning until 1 AM PST Tuesday for Coastal Waters From
     Cape Flattery To James Island 10 To 60 Nm-Coastal Waters
     From Cape Flattery To James Island Out 10 Nm-Coastal
     Waters From James Island To Point Grenville 10 To 60 Nm-
     Coastal Waters From James Island To Point Grenville Out
     10 Nm-Coastal Waters From Point Grenville To Cape
     Shoalwater 10 To 60 Nm-Coastal Waters From Point
     Grenville To Cape Shoalwater Out 10 Nm-West Entrance U.S.
     Waters Strait Of Juan De Fuca.

     Small Craft Advisory from 1 AM to 7 PM PST Tuesday for Coastal
     Waters From Cape Flattery To James Island 10 To 60 Nm-
     Coastal Waters From Cape Flattery To James Island Out 10
     Nm-Coastal Waters From James Island To Point Grenville 10
     To 60 Nm-Coastal Waters From James Island To Point
     Grenville Out 10 Nm-Coastal Waters From Point Grenville
     To Cape Shoalwater 10 To 60 Nm-Coastal Waters From Point
     Grenville To Cape Shoalwater Out 10 Nm-West Entrance U.S.
     Waters Strait Of Juan De Fuca.

     Gale Warning until 7 AM PST Tuesday for Central U.S. Waters
     Strait Of Juan De Fuca-East Entrance U.S. Waters Strait
     Of Juan De Fuca.

     Gale Warning until 4 AM PST Tuesday for Admiralty Inlet-
     Northern Inland Waters Including The San Juan Islands.

     Gale Warning until 2 AM PST Tuesday for Puget Sound and Hood
     Canal.

&&

In the hours before

Local storm report, Dec 8, 11:26 AM PST, 5 hours 9 minutes before
Preliminary Local Storm Report
National Weather Service Seattle WA
1126 AM PST Mon Dec 8 2025

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

1125 AM     Rain             3 N Littlerock          46.95N 123.02W
12/08/2025  M2.65 Inch       Thurston           WA   Trained Spotter

            24 hour amount as of 11AM this morning.
            Thurston-62.

&&

The office that day

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

IssuedProductOfficeCountiesLasted
Dec 8, 4:04 PM PSTRiver Flood WarningSEWLewis67 hr
Dec 8, 4:04 PM PSTRiver Flood WarningSEWLewis5 days
Dec 8, 4:07 PM PSTAreal Flood AdvisorySEWGrays Harbor, Lewis, Mason, Pierce, Thurston7 hr
Dec 8, 4:44 PM PSTRiver Flood WarningSEWPierce3 days
Dec 8, 4:44 PM PSTRiver Flood WarningSEWPierce71 hr
Dec 8, 4:44 PM PSTRiver Flood WarningSEWPierce3 days
Dec 8, 5:18 PM PSTRiver Flood WarningSEWSnohomish4 days
Dec 8, 5:18 PM PSTRiver Flood WarningSEWSnohomish66 hr
Dec 8, 6:16 PM PSTRiver Flood WarningSEWKing21 days
Dec 8, 6:16 PM PSTRiver Flood WarningSEWKing68 hr
Dec 8, 7:23 PM PSTRiver Flood WarningSEWClallam4 hr
Dec 8, 7:56 PM PSTRiver Flood WarningSEWKing5 days
Dec 8, 7:56 PM PSTRiver Flood WarningSEWSnohomish5 days
Dec 8, 7:56 PM PSTRiver Flood WarningSEWSnohomish21 days
Dec 8, 8:10 PM PSTRiver Flood WarningSEWSnohomish3 days
Dec 8, 9:51 PM PSTRiver Flood WarningSEWGrays Harbor65 hr
Dec 8, 10:15 PM PSTRiver Flood WarningSEWSkagit21 days
Dec 8, 11:54 PM PSTRiver Flood WarningSEWPierce3 days
Dec 9, 2:00 AM PSTRiver Flood WarningSEWThurston15 hr
Dec 9, 3:12 AM PSTRiver Flood WarningSEWGrays Harbor, Thurston21 days
Dec 9, 3:16 AM PSTRiver Flood WarningSEWKing11 days
Dec 9, 3:40 AM PSTRiver Flood WarningSEWThurston21 days
Dec 9, 6:05 AM PSTWind AdvisorySEWClallam, Grays Harbor, Jefferson, King, Kitsap, Lewis and 4 more40 hr
Dec 9, 7:32 AM PSTRiver Flood WarningSEWGrays Harbor5 days
Dec 9, 7:41 AM PSTSmall Craft AdvisorySEW67 hr
Dec 9, 9:01 AM PSTRiver Flood WarningSEWSkagit10 days
Dec 9, 9:23 AM PSTRiver Flood WarningSEWLewis22 hr
Dec 9, 12:07 PM PSTRiver Flood WarningSEWKing, Pierce12 days
Dec 9, 12:07 PM PSTRiver Flood WarningSEWPierce, Thurston31 hr
Dec 9, 1:47 PM PSTCoastal Flood AdvisorySEWSan Juan, Skagit, Snohomish, Whatcom23 hr
Dec 9, 2:25 PM PSTGale WarningSEW32 hr

Nearby

River Flood Warnings in Washington, 2025Every river flood warning in 2025

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.