Hazard Report Provided By forecast.weather.gov

Flood Watch
National Weather Service Portland OR
1242 AM PST Tue Dec 16 2025

ORZ101>128-WAZ201>211-170400-
/O.CON.KPQR.FA.A.0004.251218T1200Z-251220T1200Z/
/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 Longview, Mt. St. Helens, Tigard,
Creswell, Silverton, Eugene, Cannon Beach, Vernonia, Philomath,
Cherryville, Knappa, Indian Heaven Wilderness, Evergreen, Keizer,
Horton, Troutdale, Seaside, Willapa, Cottage Grove, Brownsville,
Warrenton, Hockinson, Vida, Skyline Drive, Detroit, Oregon City,
Amboy, McKenzie Bridge, Rainier, Vancouver, Mary`s Peak, Lake
Merwin, Grand Ronde Indian Reservation, Sylvan Hill, Florence,
Glenwood, North Bonneville, Clatskanie, Cape Horn, Woodland,
Breitenbush Springs, Parkdale, Albany, Dallas, Harrisburg, Sunset
Summit, Eagle Creek, Raymond, Oakridge, Lost Lake, Wilsonville,
Beacon Rock SP, Salem, Wilson River Summit, Portland, Brightwood,
Monroe, Brush Prairie, Waldport, Sellwood, La Center, Forest
Grove, Naselle, Rosburg, Carson, Boring, Rhododendron, Sherwood,
Sandy, Odell, Alsea, Happy Valley, Tillamook, Lincoln City,
McKenzie Pass, Tokeland, Newberg, Willamette Pass, Molalla,
Pacific City, Timothy Lake, Underwood, Castle Rock, McMinnville,
Neskowin, Woodburn, Ridgefield, Valsetz, Bonneville, Mill City,
Gresham, Kalama, Scappoose, Alma, Waldo Lake, Bennett Pass,
Newport, Rooster Rock, Yacolt, Larch Mountain, Chehalem Mountain,
Toutle, Astoria, Estacada, Rockcreek, Tombstone Summit, St.
Helens, Lake Oswego, Sheridan, Corvallis, Junction City,
Brooklyn, Camas, Silver Falls, Stayton, Lebam, Monmouth, Jewell,
Cathlamet, Grand Ronde, Necanicum, Corbett, Long Beach,
Springfield, Hood River, Multnomah Falls, Cascade Locks, Santiam
Pass, Battle Ground, Ocean Park, Santiam Junction, Government
Camp, Stevenson, Wyeth, Fairview, Hillsboro, Welches, Washougal,
Manzanita, Rockaway Beach, Kelso, Mapleton, Lebanon, Hoskins, and
Salmon Creek
1242 AM PST Tue Dec 16 2025

...FLOOD WATCH REMAINS IN EFFECT FROM LATE WEDNESDAY NIGHT THROUGH
LATE FRIDAY NIGHT...

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

* WHERE...Northwest Oregon and southwest Washington including the
  following counties: In Oregon - Benton, Clatsop, Columbia,
  Clackamas, Hood River, Lane, Lincoln, Linn, Marion, Multnomah,
  Polk, Tillamook, Washington, Yamhill. In Washington State - Clark,
  Cowlitz, Pacific, Skamania, Wahkiakum.

* WHEN...From late Wednesday night through late Friday night.

* 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. Storm drains
  and ditches may become clogged with debris. Area creeks and
  streams are running high and could flood with more heavy rain.
  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...
  - An atmospheric river is forecast to bring periods of heavy
    rain to northwestern Oregon and southwestern Washington at a
    time when area rivers continue to run high and soils remain
    saturated following heavy rain earlier in the month. During
    initial heavy rainfall on Thursday, the urban and small
    stream flooding threat will be most urgent, although the
    details of precise timing and location of the highest risk
    remains uncertain at this time. As runoff works its way
    downstream, the river flooding threat will increase Thursday
    night into Friday, with numerous area rivers now forecast to
    reach at least Minor flood stage.
  - 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.

&&

$$

27

Hazard Report Provided By forecast.weather.gov