Frost Advisory
Status
Event Continued ExpiredStart Time
Thu 04/16/2026 04:00 AM EDTEnd Time
Thu 04/16/2026 12:00 PM EDTSignificance
AdvisoryImpacts
Low impact
Locations Affected
Eugene, OR ∙ Salem, OR ∙ Hillsboro, OR ∙ Beaverton, OR ∙ Springfield, OR ∙ Corvallis, OR ∙ Albany, OR ∙ Lexington, WA ∙ Tidewater, OR ∙ Laurel Mountain, ORFull Alert Message
URGENT - WEATHER MESSAGE National Weather Service Portland OR 924 PM PDT Wed Apr 15 2026 ...FROST ADVISORY REMAINS IN EFFECT FROM 1 AM TO 9 AM PDT THURSDAY... * WHAT...Temperatures of 32 to 36 degrees will result in frost formation. * WHERE...Central and Southern Willamette Valley, Northern and Central Coast Range Valleys and Mountains of Oregon, Lower Columbia River and Cowlitz River Valleys, 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 Thursday. * 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
ORZ104>110-114>118-WAZ203>205-208-161600- /O.CON.KPQR.FR.Y.0003.260416T0800Z-260416T1600Z/ 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-West Central Willamette Valley-East Central Willamette Valley-Benton County Lowlands-Linn County Lowlands- Lane County Lowlands-Willapa Hills-Cowlitz County Lowlands-North Clark County Lowlands-South Washington Cascade Foothills- Including the cities of Sunset Summit, Mapleton, Wilsonville, Hillsboro, Stayton, Rockcreek, Brush Prairie, Lake Merwin, Skyline Drive, Chehalem Mountain, Kelso, Cottage Grove, Woodburn, Knappa, Longview, Brooklyn, Toutle, Forest Grove, Harrisburg, Clatskanie, Silverton, Castle Rock, St. Helens, Grand Ronde Indian Reservation, Sylvan Hill, Glenwood, Dallas, Kalama, Amboy, Ridgefield, Salem, Grand Ronde, Yacolt, Monroe, Molalla, Valsetz, Woodland, McMinnville, Keizer, Jewell, Creswell, Horton, Monmouth, Sherwood, Albany, Junction City, Alsea, La Center, Vernonia, Brownsville, Scappoose, Mary's Peak, Eugene, Alma, Corvallis, Tigard, Newberg, Sheridan, Springfield, Hockinson, Necanicum, Wilson River Summit, Philomath, Hoskins, Rainier, Battle Ground, and Lebanon 924 PM PDT Wed Apr 15 2026
