Frost Advisory
Status
Event Continued Active alertStart Time
Fri 04/17/2026 04:00 AM EDTEnd Time
Fri 04/17/2026 12:00 PM EDTSignificance
AdvisoryImpacts
Low impact
Locations Affected
Salem, OR ∙ Gresham, OR ∙ Hillsboro, OR ∙ Beaverton, OR ∙ Cedar Hills, OR ∙ Lafayette, OR ∙ Estacada, OR ∙ Ostrander, WA ∙ Florence, OR ∙ Oceanside, ORFull Alert Message
URGENT - WEATHER MESSAGE National Weather Service Portland OR 828 PM PDT Thu Apr 16 2026 ...FROST ADVISORY REMAINS IN EFFECT FROM 1 AM TO 9 AM PDT FRIDAY... * WHAT...Temperatures of 32 to 36 degrees will result in frost formation. * WHERE...Northern and Central Coast Range Valleys and Mountains of Oregon, Eastern Portland/Vancouver Metro, Lower Columbia River and Cowlitz River Valleys, Central Willamette Valley, Tillamook County Coast, Central Coast of Oregon, Tualatin Valley, Portland West Hills and Chehalem Mountain, Willapa Hills, North Clark County Lowlands, and South Washington Cascade Foothills. * WHEN...From 1 AM to 9 AM PDT Friday. * IMPACTS...Frost could harm sensitive outdoor vegetation. Sensitive outdoor plants may be killed if left uncovered. PRECAUTIONARY/PREPAREDNESS ACTIONS... 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. Consider 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.
Technical Header
ORZ102>110-112>115-WAZ203>205-207-208-171600- /O.CON.KPQR.FR.Y.0004.260417T0800Z-260417T1600Z/ 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-East Portland Metro-Outer Southeast Portland Metro-West Central Willamette Valley-East Central Willamette Valley-Willapa Hills- Cowlitz County Lowlands-North Clark County Lowlands-East Clark County Lowlands-South Washington Cascade Foothills- Including the cities of Manzanita, Woodland, Mary's Peak, Stayton, Tigard, Brush Prairie, Wilson River Summit, Ridgefield, Sandy, Kelso, Castle Rock, Grand Ronde, Brooklyn, Sunset Summit, Monmouth, Molalla, Neskowin, Keizer, Skyline Drive, Silverton, Grand Ronde Indian Reservation, Alsea, Rainier, Sherwood, Newport, Scappoose, Mapleton, Hillsboro, Woodburn, Waldport, Rockcreek, Toutle, McMinnville, Battle Ground, Chehalem Mountain, Jewell, Hockinson, Amboy, Newberg, Glenwood, Alma, Clatskanie, Sylvan Hill, Kalama, Forest Grove, Florence, Tillamook, Estacada, Sheridan, Vernonia, Dallas, Fairview, Salem, Longview, Necanicum, Gresham, Boring, Washougal, Yacolt, Rockaway Beach, St. Helens, Hoskins, Wilsonville, Knappa, Pacific City, Valsetz, Camas, Lake Merwin, La Center, Troutdale, Horton, and Lincoln City 828 PM PDT Thu Apr 16 2026
