Flood Watch

Flood Watch
National Weather Service Seattle WA
440 AM PST Sat Dec 6 2025

.A series of wet weather systems moving across the region will
increase the threat of river flooding early next week.

WAC009-027-029-031-033-035-041-045-053-055-057-061-067-073-070100-
/O.CON.KSEW.FA.A.0012.251208T1200Z-251213T0000Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Clallam-Grays Harbor-Island-Jefferson-King-Kitsap-Lewis-Mason-
Pierce-San Juan-Skagit-Snohomish-Thurston-Whatcom-
Including Tumwater, Chehalis, Seattle, Everett, Anacortes, Port
Townsend, Lacey, Friday Harbor, Edmonds, Freeland, Hoquiam,
Bremerton, Sedro-Woolley, Burlington, Mount Vernon, Langley,
Marysville, Aberdeen, Silverdale, Shelton, Olympia, Sequim, Fords
Prairie, Tacoma, Lynnwood, and Bellingham
440 AM PST Sat Dec 6 2025

...FLOOD WATCH REMAINS IN EFFECT FROM LATE SUNDAY NIGHT THROUGH
FRIDAY AFTERNOON...

* WHAT...Flooding caused by excessive rainfall continues to be
  possible.

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

* WHEN...From late Sunday night through Friday afternoon.

* IMPACTS...Excessive runoff may result in flooding of rivers,
  creeks, streams, and other low-lying and flood-prone locations.
  Flooding may occur in poor drainage and urban areas.

* ADDITIONAL DETAILS...
  - An atmospheric river moving into the region early next week
    will bring periods moderate to heavy rain to the region.
    Sharp rises will be possible on area rivers, especially those
    flowing off the Olympics and Cascades.

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

    Saturated soils will bring increased potential for landslides
    and debris flows on 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.

&&

$$

JD

Flood Watch
National Weather Service Portland OR
110 AM PST Sat Dec 6 2025

ORZ101>128-WAZ201>211-070000-
/O.NEW.KPQR.FA.A.0003.251208T1200Z-251212T1200Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Clatsop County Coast-Tillamook County Coast-Central Coast of
Oregon-North Oregon Coast Range Lowlands-Central Oregon Coast
Range Lowlands-North Oregon Coast Range-Central Oregon Coast
Range-Lower Columbia River-Tualatin Valley-Portland West Hills
and Chehalem Mountain-Inner Portland Metro-East Portland Metro-
Outer Southeast Portland Metro-West Central Willamette Valley-
East Central Willamette Valley-Benton County Lowlands-Linn County
Lowlands-Lane County Lowlands-West Columbia River Gorge of Oregon
above 500 ft-West Columbia River Gorge I-84 Corridor-Upper Hood
River Valley-Central Columbia River Gorge I-84 Corridor-Clackamas
County Cascade Foothills-Cascade Foothills of Marion and Linn
Counties-Lane County Cascade Foothills-North Oregon Cascades-
Cascades of Marion and Linn Counties-Cascades of Lane County-
South Washington Coast-Willapa and Wahkiakum Lowlands-Willapa
Hills-Cowlitz County Lowlands-North Clark County Lowlands-Inner
Vancouver Metro-East Clark County Lowlands-South Washington
Cascade Foothills-West Columbia River Gorge SR 14 Corridor-
Central Columbia River Gorge SR 14 Corridor-South Washington
Cascades-
Including the cities of Camas, Stevenson, Naselle, Hillsboro,
Rooster Rock, Vernonia, Oregon City, Brooklyn, Cape Horn,
Rockcreek, Wilsonville, Salem, Mill City, Cherryville, Raymond,
McMinnville, Neskowin, Eugene, Corvallis, Lake Oswego, Longview,
Scappoose, Forest Grove, Salmon Creek, Sellwood, Lincoln City,
Tillamook, Evergreen, Fairview, Astoria, Valsetz, Tombstone
Summit, Eagle Creek, Parkdale, Brush Prairie, Oakridge, Monmouth,
Rainier, Castle Rock, Silverton, Junction City, Willapa,
Philomath, Newberg, Newport, Glenwood, Multnomah Falls,
Willamette Pass, Corbett, Warrenton, Sherwood, Monroe, Grand
Ronde Indian Reservation, McKenzie Pass, Seaside, Tokeland,
Hockinson, Yacolt, Hood River, North Bonneville, Sheridan, Happy
Valley, Sylvan Hill, Rosburg, Mary`s Peak, Lebanon, Skyline
Drive, Carson, Beacon Rock SP, Grand Ronde, Rockaway Beach,
Kalama, Amboy, Pacific City, Manzanita, Woodburn, Boring,
Portland, Knappa, Chehalem Mountain, Brightwood, Troutdale,
Florence, Brownsville, Clatskanie, Vida, Bennett Pass, Stayton,
Vancouver, Odell, Cannon Beach, Santiam Junction, Albany,
Welches, Horton, Ridgefield, Necanicum, Creswell, Lebam,
Rhododendron, Ocean Park, Lake Merwin, Woodland, Lost Lake, Larch
Mountain, Government Camp, Harrisburg, Alma, Keizer, Sandy,
Wyeth, Estacada, Sunset Summit, Tigard, Silver Falls, Long Beach,
Indian Heaven Wilderness, Underwood, Toutle, Timothy Lake,
Gresham, Springfield, Detroit, Washougal, Dallas, La Center,
Bonneville, Cottage Grove, Mapleton, Cascade Locks, Jewell,
Molalla, Breitenbush Springs, Cathlamet, McKenzie Bridge, Kelso,
Mt. St. Helens, St. Helens, Wilson River Summit, Battle Ground,
Waldport, Alsea, Waldo Lake, Hoskins, and Santiam Pass
110 AM PST Sat Dec 6 2025

...FLOOD WATCH IN EFFECT FROM LATE SUNDAY NIGHT THROUGH LATE
THURSDAY NIGHT...

* WHAT...River and urban flooding caused by excessive rainfall is
  possible. Landslides possible in areas of steep terrain, and
  debris flows possible over recently burned areas.

* WHERE...Portions of Oregon, including the following areas, Benton
  County Lowlands, Cascade Foothills of Marion and Linn Counties,
  Cascades of Lane County, Cascades of Marion and Linn Counties,
  Central Coast of Oregon, Central Columbia River Gorge I-84
  Corridor, Central Oregon Coast Range, Central Oregon Coast Range
  Lowlands, Clackamas County Cascade Foothills, Clatsop County
  Coast, East Central Willamette Valley, East Portland Metro, Inner
  Portland Metro, Lane County Cascade Foothills, Lane County
  Lowlands, Linn County Lowlands, Lower Columbia River, North Oregon
  Cascades, North Oregon Coast Range, North Oregon Coast Range
  Lowlands, Outer Southeast Portland Metro, Portland West Hills and
  Chehalem Mountain, Tillamook County Coast, Tualatin Valley, Upper
  Hood River Valley, West Central Willamette Valley, West Columbia
  River Gorge I-84 Corridor and West Columbia River Gorge of Oregon
  above 500 ft and southwest Washington, including the following
  areas, Central Columbia River Gorge SR 14 Corridor, Cowlitz County
  Lowlands, East Clark County Lowlands, Inner Vancouver Metro, North
  Clark County Lowlands, South Washington Cascade Foothills, South
  Washington Cascades, South Washington Coast, West Columbia River
  Gorge SR 14 Corridor, Willapa Hills and Willapa and Wahkiakum
  Lowlands.

* WHEN...From late Sunday night through late Thursday night.

* IMPACTS...Excessive runoff may result in flooding of rivers,
  creeks, streams, and other low-lying and flood-prone locations.
  Landslides and debris flows are possible during this flood event.
  People, structures, and roads located below steep slopes, in
  canyons, and near the mouths of canyons may be at serious risk
  from rapidly moving landslides.

* ADDITIONAL DETAILS...
  - A prolonged atmospheric river is expected to bring periods of
    heavy rain to northwest Oregon and southwest Washington
    Monday through Wednesday, with periods of lighter rain
    continuing Thursday into Friday. Rivers draining the coastal
    mountains and several Willamette Tributaries have the highest
    chance of flooding at 40 to 70%. Chances for flooding along
    the Willamette mainstem remains low at under 5%.
  - 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.

&&

$$

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