# HEADLINE
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FROST ADVISORY REMAINS IN EFFECT UNTIL 10 AM PDT SATURDAY
# DETAILS
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WHAT
Temperatures of 33 to 36 degrees will result in frost formation.
WHERE
In Oregon, Tualatin Valley, Central Oregon Coast Range, and Central Oregon Coast Range Lowlands. In Washington, Cowlitz County Lowlands, North Clark County Lowlands, South Washington Cascade Foothills, and Willapa Hills.
WHEN
Until 10 AM PDT Saturday.
IMPACTS
Frost could harm sensitive outdoor vegetation. Sensitive outdoor plants may be killed if left uncovered.
ISSUED AT
Friday, October 23, 2026 at 10:30 PM PDT
ISSUED BY
National Weather Service Portland OR
HEADER
URGENT - WEATHER MESSAGE
# PRECAUTIONARY/PREPAREDNESS ACTIONS
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Take steps now to protect tender outdoor plants from the cold. Consider temporarily moving outdoor potted plants indoors if they are sensitive to cold temperatures, or temporarily covering sensitive plants with a lightweight cotton fabric (i.e., bedsheets, thin blankets), as this will help retain heat and provide frost protection for your plants.
# AREAS AFFECTED
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East Portland Metro, South Washington Cascade Foothills, Central Coast of Oregon, Central Oregon Coast Range, Central Oregon Coast Range Lowlands, Clackamas County Cascade Foothills, Clatsop County Coast, Cowlitz County Lowlands, East Clark County Lowlands, Inner Portland Metro, Inner Vancouver Metro, Lower Columbia River, North Clark County Lowlands, Outer Southeast Portland Metro, Tillamook County Coast, Tualatin Valley, West Columbia River Gorge of Oregon above 500 ft, Willapa Hills
Including the cities of Alma, Sellwood, Estacada, Waldport, Kelso, Cannon Beach, Cherryville, Ridgefield, Rockcreek, Lake Merwin, Manzanita, Grand Ronde, Lake Oswego, Fairview, Welches, Amboy, Valsetz, Sherwood, Mary's Peak, Troutdale, Castle Rock, Tillamook, Rainier, Battle Ground, Brush Prairie, Rockaway Beach, Lincoln City, Portland, Neskowin, Hockinson, Tigard, La Center, Brightwood, Kalama, Seaside, Sandy, Brooklyn, Camas, St. Helens, Evergreen, Clatskanie, Woodland, Pacific City, Hoskins, Warrenton, Alsea, Rhododendron, Yacolt, Eagle Creek, Happy Valley, Corbett, Washougal, Horton, Salmon Creek, Astoria, Scappoose, Vancouver, Newport, Mapleton, Oregon City, Gresham, Florence, Hillsboro, Toutle, Boring, Longview, and Forest Grove
