Flood Watch
Flood Watch
National Weather Service Seattle WA
417 PM 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.
WAC009-027-029-031-033-035-041-045-053-055-057-061-067-073-071400-
/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 Sedro-Woolley, Bellingham, Langley, Anacortes,
Freeland, Aberdeen, Marysville, Hoquiam, Olympia, Bremerton, Port
Townsend, Friday Harbor, Chehalis, Burlington, Seattle, Edmonds,
Mount Vernon, Lynnwood, Tacoma, Everett, Lacey, Sequim,
Silverdale, Tumwater, Fords Prairie, and Shelton
417 PM 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.
&&
$$
62
Flood Watch
National Weather Service Portland OR
345 PM PST Sat Dec 6 2025
ORZ101>128-WAZ201>211-071200-
/O.CON.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 Seaside, Newport, Cathlamet, Monroe, Long
Beach, Vernonia, Neskowin, Oregon City, Rockaway Beach,
Ridgefield, Forest Grove, Eagle Creek, Portland, Vida, Government
Camp, North Bonneville, Manzanita, Cascade Locks, Mill City, Mt.
St. Helens, Brush Prairie, Washougal, Sellwood, Clatskanie,
Brooklyn, Lake Oswego, Cannon Beach, Hood River, Woodburn,
Woodland, Salmon Creek, Estacada, Oakridge, Breitenbush Springs,
Toutle, Kelso, Eugene, Philomath, Happy Valley, Salem, Monmouth,
Harrisburg, Sandy, Santiam Pass, Jewell, Bennett Pass, Vancouver,
Beacon Rock SP, Evergreen, Stevenson, Brightwood, Welches,
Santiam Junction, Astoria, Corbett, Odell, Bonneville, Raymond,
Newberg, Florence, Hoskins, Rainier, Camas, Larch Mountain,
Creswell, Underwood, Silver Falls, Rhododendron, Sunset Summit,
Warrenton, Keizer, Indian Heaven Wilderness, Molalla, Sherwood,
Pacific City, Glenwood, Tigard, McKenzie Pass, Willamette Pass,
Gresham, Waldport, Lebam, Alsea, Longview, Horton, Stayton,
Silverton, Rockcreek, Cottage Grove, Sylvan Hill, Tokeland,
Albany, Cape Horn, St. Helens, Dallas, Lost Lake, Sheridan,
Detroit, Ocean Park, Necanicum, Grand Ronde Indian Reservation,
Scappoose, Boring, Brownsville, McKenzie Bridge, Yacolt,
Hillsboro, Lebanon, Wilson River Summit, Mapleton, Wilsonville,
Cherryville, Fairview, Grand Ronde, Mary`s Peak, Tillamook, Lake
Merwin, Valsetz, Battle Ground, La Center, Tombstone Summit,
Skyline Drive, Rosburg, Willapa, Corvallis, Rooster Rock,
Springfield, Parkdale, Chehalem Mountain, Alma, Kalama, Wyeth,
Multnomah Falls, Waldo Lake, Troutdale, Carson, Knappa,
Hockinson, Amboy, Naselle, Lincoln City, McMinnville, Castle
Rock, Timothy Lake, and Junction City
345 PM PST Sat Dec 6 2025
...FLOOD WATCH REMAINS 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...Counties in Oregon: Clatsop, Columbia, Tillamook,
Washington, Multnomah, Hood River, Yamhill, Clackamas, Polk,
Marion, Lincoln, Benton, Linn, and Lane
Counties in Washington: Pacific, Wahkiakum, Cowlitz, Skamania, and
Clark
* 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 80%. Chances for flooding along
the Willamette mainstem remains low at around 10%.
- 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.
&&
$$
19
Hydrologic Outlook
Hydrologic Outlook
WAZ027-522-523-080000-
Hydrologic Outlook
National Weather Service Pendleton OR
709 PM PST Sat Dec 6 2025
...RIVERS RISING IN THE WASHINGTON CASCADES EARLY NEXT WEEK...
A series of weather systems will bring rain and rising river levels
to the area, especially the Washington Cascades, through this
weekend. Another system fed by a strong atmospheric river early next
week will bring heavier rain amounts. Currently a few locations on
the Naches and Yakima Rivers are forecast to reach action stage
starting Tuesday and Wednesday but the chances of reaching minor
flood stage are very low.
$$
MR
Hydrologic Outlook
WAC007-047-070430-
Hydrologic Outlook
National Weather Service Spokane WA
816 PM PST Fri Dec 5 2025
...RIVER RISES AND AN INCREASED RISK OF MUD AND ROCK SLIDES NEXT
WEEK FOR THE CASCADES...
A series of warm, wet, and breezy weather systems will result in
periods of high mountain snow and heavy low to mid elevation rain
for the Washington Cascades next week. Snow levels will fluctuate
between 3000 and 5000 feet. Lower elevation snowmelt in addition to
the rainfall will lead to rises on small creeks and streams. This
will also bring an increased risk for mud and rock slides in areas
of steep, snow-free terrain and recently burned areas.
$$
OTX
