Hazard Report Provided By forecast.weather.gov

Special Weather Statement
National Weather Service Seattle WA
812 AM PST Sat Dec 13 2025

WAZ001-301>333-141900-
San Juan County-Cascades of Whatcom and Skagit Counties-
Cascades of Snohomish and Northern King Counties-
Cascades of Southern King County-
Cascades of Pierce and Lewis Counties-
Foothills and Valleys of the North Cascades-
Foothills and Valleys of Snohomish and Northern King Counties-
Foothills and Valleys of Central King County-
Foothills and Valleys of Pierce and Southern King Counties-
Foothills and Valleys of Thurston and Lewis Counties-
Lowlands of Western Whatcom County-
Lowlands of Western Skagit and Northwestern Snohomish Counties-
Downtown Everett / Marysville Area-
Shoreline / Lynnwood / South Everett Area-Eastside-City of Seattle-
Lowlands of Pierce and Southern King Counties-
Olympia and Southern Puget Sound-
Lowlands of Lewis and Southern Thurston Counties-
Middle Chehalis River Valley-Willapa and Black Hills-
Southern Hood Canal-Northern Hood Canal-Eastern Kitsap County-
Port Townsend Area-Eastern Strait of Juan de Fuca-
Western Strait of Juan de Fuca-Lake Crescent Area Including US 101-
Olympics-Foothills of the Western and Southern Olympic Peninsula-
Northern Washington Coast-Grays Harbor County Coast-
Lower Chehalis River Valley-Island County-
812 AM PST Sat Dec 13 2025

...HEAVY RAINFALL THIS WEEK HAS LED TO AN INCREASED THREAT OF
LANDSLIDES IN WESTERN WASHINGTON...

Rainfall of 2 to 12 inches over the past several days, with locally
higher amounts to 17 inches, has increased soil moisture to very
high levels across western Washington. This amount of rain will put
extra pressure on soil instability, leading to an increased threat of
landslides and debris flows, especially from recent burned areas.

Numerous landslides have already been reported in the western
Cascades in western Washington. More landslides are possible.

Areas most susceptible to landslides debris flows under these
conditions are steep coastal bluffs, other steep hillsides or
road cuts, and recent burned areas. A diminishing threat of
landslides and debris flows will continue for several days after
the rain ends.

For more information about current conditions, visit
www.weather.gov/seattle, select Hydrology, and then scroll down
for the links to the landslide information pages.

For more information on landslides, visit the website for the
Washington State Department of Natural Resources landslide
geologic hazards at: http://bit.ly/2mtA3wn

$$

www.weather.gov/seattle

Flood Statement
National Weather Service Seattle WA
601 PM PST Sat Dec 13 2025

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

  Cedar River At Renton affecting King County.

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 215 AM PST.

&&

WAC033-141015-
/O.EXT.KSEW.FL.W.0053.000000T0000Z-251215T1201Z/
/RNTW1.3.ER.000000T0000Z.251211T2300Z.251215T0301Z.NO/
601 PM PST Sat Dec 13 2025

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

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

* WHERE...Cedar River at Renton.

* WHEN...Until early Monday morning.

* IMPACTS...At 14.5 feet, the Cedar River will flood areas of Renton
  including the Renton Airport.

* ADDITIONAL DETAILS...
  - At 5:15 PM PST Saturday the stage was 14.9 feet.
  - Flood stage is 13.0 feet.
  - Recent Activity...The maximum river stage in the 24 hours
    ending at 5:15 PM PST Saturday was 15.6 feet.
  - Forecast...The river is expected to fall below flood stage
    tomorrow evening and continue falling to 12.7 feet Tuesday
    afternoon.
  - http://www.weather.gov/safety/flood

&&

LAT...LON 4736 12209 4743 12222 4750 12229 4756 12214
      4751 12210 4745 12196


$$

18

Flood Statement
National Weather Service Seattle WA
600 PM PST Sat Dec 13 2025

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

  Cedar River Near Landsburg affecting King County.

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 200 AM PST.

&&

WAC033-141000-
/O.EXT.KSEW.FL.W.0049.000000T0000Z-251215T0154Z/
/LNDW1.3.ER.251210T1525Z.251212T0000Z.251214T1654Z.NO/
600 PM PST Sat Dec 13 2025

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

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

* WHERE...Cedar River near Landsburg.

* WHEN...Until tomorrow afternoon.

* IMPACTS...At 6.5 feet, the Cedar River will cause major flooding
  from Landsburg downstream through Maplewood. Deep and swift flood
  waters will inundate many roads and some residential areas,
  especially in Maple Valley. Flooding threatens SR-169.  Flooding
  will occur all along the river including headwaters, tributaries,
  and other streams within and near the Cedar River Basin. A stage
  of 6.5 feet on the Cedar River corresponds to a phase 4 flood in
  the King County flood system.

* ADDITIONAL DETAILS...
  - At 5:30 PM PST Saturday the stage was 6.9 feet.
  - Flood stage is 5.7 feet.
  - Recent Activity...The maximum river stage in the 24 hours
    ending at 5:30 PM PST Saturday was 7.6 feet.
  - Forecast...The river is expected to fall below flood stage
    tomorrow morning and continue falling to 4.9 feet Tuesday
    afternoon.
  - http://www.weather.gov/safety/flood

&&

LAT...LON 4735 12179 4733 12202 4738 12213 4747 12202
      4744 12195 4745 12182


$$

18

Flood Statement
National Weather Service Seattle WA
558 PM PST Sat Dec 13 2025

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

  Green River Near Auburn affecting King 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 late tonight at 200 AM PST.

&&

WAC033-141000-
/O.CON.KSEW.FL.W.0039.000000T0000Z-000000T0000Z/
/AUBW1.2.ER.251209T1446Z.251213T1630Z.000000T0000Z.NO/
558 PM PST Sat Dec 13 2025

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

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

* WHERE...Green River near Auburn.

* WHEN...Until further notice.

* IMPACTS...At 10,000.0 cfs, the Green River will flood low areas of
  the middle Green River valley with water over SE Green Valley Rd.
  Some flooding is possible at a few low spots along the banks of
  the Green River in Auburn, including near Issac Evans Park in
  lower Mill Creek basin between Auburn and Kent due to backwater. A
  flow of 9000 cfs feet on the Green River corresponds to a phase 3
  flood in the King County flood system.

* ADDITIONAL DETAILS...
  - At 4:45 PM PST Saturday the flow was 11,200.0 cfs.
  - Flood flow is 9,000.0 cfs.
  - Recent Activity...The maximum river flow in the 24 hours
    ending at 4:45 PM PST Saturday was 12,800.0 cfs.
  - Forecast...The river is expected to rise to a crest of
    11,814.0 cfs late this evening.
  - http://www.weather.gov/safety/flood

&&

LAT...LON 4724 12188 4723 12212 4723 12231 4753 12238
      4753 12208 4753 12192


$$

18

Flood Statement
National Weather Service Seattle WA
501 PM PST Sat Dec 13 2025

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

  White River Near Mud Mtn. Dam Outflow affecting Pierce and King
  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 late tonight at 115 AM PST.

&&

WAC033-053-140915-
/O.CON.KSEW.FL.W.0059.000000T0000Z-000000T0000Z/
/MMRW1.1.ER.251212T1550Z.251213T1700Z.000000T0000Z.UU/
501 PM PST Sat Dec 13 2025

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

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

* WHERE...White River near Mud Mtn. Dam Outflow.

* WHEN...Until further notice.

* IMPACTS...At 10,000.0 cfs, the White River will flood areas above
  and below Mud Mountain Dam downstream to near Auburn. Deep and
  swift flood waters will inundate roads and surround and cut off
  access to some homes in the Red Creek area. Flood damages occur at
  the fish hatchery near the City of Enumclaw. 10000 cfs on the
  White river corresponds to a phase 4 flood in the King County
  flood system.

* ADDITIONAL DETAILS...
  - At 4:00 PM PST Saturday the flow was 10,020.0 cfs.
  - Flood flow is 9,000.0 cfs.
  - Recent Activity...The maximum river flow in the 24 hours
    ending at 4:00 PM PST Saturday was 10,050.0 cfs.
  - Forecast...The river is expected to fall to 10,000.0 cfs
    Tuesday afternoon.
  - http://www.weather.gov/safety/flood

&&

LAT...LON 4709 12192 4722 12217 4716 12220 4720 12234
      4733 12224 4721 12191


$$

18

Flood Statement
National Weather Service Seattle WA
459 PM PST Sat Dec 13 2025

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

  White River At R Street Bridge affecting Pierce and King 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 late tonight at 100 AM PST.

&&

WAC033-053-140900-
/O.CON.KSEW.FL.W.0044.000000T0000Z-000000T0000Z/
/WRAW1.2.ER.251209T1916Z.251213T2315Z.000000T0000Z.UU/
459 PM PST Sat Dec 13 2025

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

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

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

* WHEN...Until further notice.

* IMPACTS...At 10,000.0 cfs, River flooding may occur upstream of
  the A Street Bridge in the City of Auburn. River levels will
  likely be up against the temporary flood protection barriers, with
  flooding likely at Government Canal and Butte Avenue in the City
  of Pacific and downstream of the Stewart Street Bridge in the City
  of Sumner.

* ADDITIONAL DETAILS...
  - At 3:45 PM PST Saturday the flow was 9,930.0 cfs.
  - Flood flow is 7,500.0 cfs.
  - Recent Activity...The maximum river flow in the 24 hours
    ending at 3:45 PM PST Saturday was 10,600.0 cfs.
  - Forecast...The river will fall to 9,784.8 cfs late this
    evening. It will then rise to 10,130.2 cfs late tonight. It
    will fall to 10,046.5 cfs early Monday morning then rise
    again.
  - http://www.weather.gov/safety/flood

&&

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


$$

18

Flood Watch
National Weather Service Seattle WA
218 PM PST Sat Dec 13 2025

WAC009-027-031-033-035-041-045-053-057-061-067-073-141300-
/O.NEW.KSEW.FA.A.0013.251215T1800Z-251219T0000Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Clallam-Grays Harbor-Jefferson-King-Kitsap-Lewis-Mason-Pierce-
Skagit-Snohomish-Thurston-Whatcom-
Including Bremerton, Lacey, Anacortes, Tacoma, Sedro-Woolley,
Tumwater, Port Townsend, Seattle, Mount Vernon, Chehalis,
Aberdeen, Edmonds, Shelton, Everett, Hoquiam, Bellingham,
Silverdale, Lynnwood, Burlington, Olympia, Marysville, Sequim,
and Fords Prairie
218 PM PST Sat Dec 13 2025

...FLOOD WATCH IN EFFECT FROM MONDAY MORNING THROUGH THURSDAY
AFTERNOON...

* WHAT...Flooding caused by excessive rainfall is possible.

* WHERE...Portions of northwest and west central Washington,
  including the following counties, in northwest Washington,
  Clallam, Grays Harbor, Jefferson, Kitsap, Mason, Skagit and
  Whatcom. In west central Washington, King, Lewis, Pierce,
  Snohomish and Thurston.

* WHEN...From Monday morning through Thursday afternoon.

* IMPACTS...Excessive runoff may result in flooding of rivers,
  creeks, streams, and other low-lying and flood-prone locations.
  Creeks and streams may rise out of their banks. Flooding may occur
  in poor drainage and urban areas. Storm drains and ditches may
  become clogged with debris. Area creeks and streams are running
  high and could flood with more heavy rain.

* ADDITIONAL DETAILS...
  - A series of weather systems next week will bring another
    round of significant rainfall to western Washington late
    Sunday through Wednesday. Preliminary liquid totals of 2 to 8
    inches will cause additional sharp rises to area rivers, with
    many forecast to enter moderate and even major flood stage
    early next week.

    Urban and small stream flooding remains possible for areas
    with poor drainage.

    Very saturated soils will maintain increased risk for
    potential landslides and debris flows off of burn scars.

  - Http://www.weather.gov/safety/flood

PRECAUTIONARY/PREPAREDNESS ACTIONS...

You should monitor later forecasts and be alert for possible Flood
Warnings. Those living in areas prone to flooding should be prepared
to take action should flooding develop.

&&

$$

15

Hydrologic Outlook
WAC009-027-031-033-035-041-045-053-057-061-067-073-140330-

Hydrologic Outlook
National Weather Service Seattle WA
626 AM PST Sat Dec 13 2025

...THREAT OF FLOODING ACROSS WESTERN WASHINGTON EARLY NEXT WEEK...

Another strong atmospheric river will impact western Washington
starting late Sunday extending into mid week. Snow levels will rise
as high as 8500 feet Monday before lowering to 3500 to 4500 feet
Tuesday. Soils will still be saturated and rivers will be elevated.
A few rivers might not drop below flood stage before this round of
rain begins.

Expect rising rivers with the potential for flooding, urban
flooding, and landslides. Debris flows are also possible throughout
this period.

Please monitor the latest river forecasts from the National Weather
Service for additional information.

$$

44

Hazard Report Provided By forecast.weather.gov