TILLAMOOK COUNTY EMERGENCY MANAGEMENT ADVISORY: Flood Watch from late Wednesday 12/17/25 until 04:00AM Saturday 12/20/25

* WHAT…Flooding caused by excessive rainfall is possible.

* WHERE…All of northwestern Oregon and southwestern Washington.

* WHEN…From late Wednesday night 12/17/25 through late Friday night 12/19/25, early Saturday morning 12/20/25

* 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

* AFFECTED AREAS: 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 … WEST HILLS AND CHEHALEM MOUNTAINS … 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 … CENTRAL COLUMBIA RIVER GORGE – SR 14 … SOUTH WASHINGTON CASCADES

Instructions:

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.