Hazard Report Provided By forecast.weather.gov

Flood Watch
National Weather Service Portland OR
250 PM PST Wed Dec 17 2025

ORZ101>128-WAZ201>211-181100-
/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 Cape Horn, Rockcreek, Rockaway Beach,
Timothy Lake, Troutdale, Silverton, Larch Mountain, Santiam Pass,
Cottage Grove, Indian Heaven Wilderness, Toutle, Woodland,
Brooklyn, Cannon Beach, Carson, Junction City, Sandy, Raymond,
Knappa, Vancouver, Eagle Creek, Yacolt, Oakridge, Philomath,
Waldport, Grand Ronde, Sheridan, Bonneville, Brightwood, Oregon
City, Tigard, McKenzie Bridge, Estacada, Warrenton, Willamette
Pass, Rooster Rock, Cascade Locks, Happy Valley, Longview, Silver
Falls, Valsetz, Lake Oswego, Hood River, Newberg, Government
Camp, Castle Rock, Forest Grove, Willapa, Newport, Neskowin,
Lebanon, Ridgefield, Sellwood, Salmon Creek, Keizer, Parkdale,
Bennett Pass, Camas, St. Helens, Corbett, Springfield, Scappoose,
Tokeland, Hillsboro, Alsea, Detroit, Battle Ground, Breitenbush
Springs, Creswell, Lake Merwin, Wilson River Summit, North
Bonneville, Ocean Park, Rosburg, Underwood, Horton, Naselle, Long
Beach, Salem, Wilsonville, Welches, Alma, Eugene, Seaside,
Clatskanie, Vida, Washougal, Dallas, Fairview, Glenwood,
Woodburn, Brownsville, Odell, Stayton, Rainier, Hockinson,
Corvallis, Tombstone Summit, Skyline Drive, Albany, Mill City,
Cherryville, McMinnville, Rhododendron, Kalama, Tillamook,
Chehalem Mountain, Mapleton, Vernonia, La Center, Sherwood,
Mary`s Peak, Multnomah Falls, Manzanita, Pacific City, Lincoln
City, Portland, McKenzie Pass, Grand Ronde Indian Reservation,
Astoria, Mt. St. Helens, Harrisburg, Gresham, Sunset Summit,
Necanicum, Santiam Junction, Hoskins, Brush Prairie, Jewell,
Waldo Lake, Kelso, Lebam, Monroe, Beacon Rock SP, Lost Lake,
Sylvan Hill, Amboy, Monmouth, Boring, Florence, Wyeth, Evergreen,
Stevenson, Cathlamet, and Molalla
250 PM PST Wed Dec 17 2025

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

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

* 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 tonight 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.

&&

$$

02

URGENT - WINTER WEATHER MESSAGE
National Weather Service Portland OR
1044 AM PST Wed Dec 17 2025

ORZ126-127-181500-
/O.CAN.KPQR.WW.Y.0021.000000T0000Z-251218T0000Z/
/O.NEW.KPQR.WW.Y.0022.251218T1200Z-251218T1800Z/
North Oregon Cascades-Cascades of Marion and Linn Counties-
Including the cities of Tombstone Summit, Santiam Junction,
Timothy Lake, McKenzie Pass, Santiam Pass, Bennett Pass,
Breitenbush Springs, Government Camp, and Lost Lake
1044 AM PST Wed Dec 17 2025

...WINTER WEATHER ADVISORY IN EFFECT FROM 4 AM TO 10 AM PST
THURSDAY...

* WHAT...Wet snow expected. Total snow accumulations up to 6 inches.
  Winds gusting as high as 40 mph.

* WHERE...North Oregon Cascades and Cascades of Marion and Linn
  Counties.

* WHEN...From 4 AM to 10 AM PST Thursday.

* IMPACTS...Roads, and especially bridges and overpasses, will
  likely become slick and hazardous.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Be prepared for slippery roads. Slow down and use caution while
driving. If you are going outside, watch your first few steps taken
on stairs, sidewalks, and driveways. These surfaces could be icy and
slippery, increasing your risk of a fall and injury.

Have a winter emergency driving kit readily available. Common items
to include: flashlight, batteries, blankets, a shovel, water,
non-perishable food items, tire chains, etc.

For the latest road conditions and chain restrictions in Oregon,
call 5 1 1, or visit: www.tripcheck.com.

&&

$$

Hazard Report Provided By forecast.weather.gov