Frost Advisory
Status
Event Continued Active alertStart Time
Sat 10/31/2026 03:00 AM EDTEnd Time
Sat 10/31/2026 12:00 PM EDTSignificance
AdvisoryImpacts
Low impact
Locations Affected
Portland, OR ∙ Vancouver, WA ∙ Salem, OR ∙ Gresham, OR ∙ Beaverton, OR ∙ Hillsboro, OR ∙ Siletz, OR ∙ Manzanita, OR ∙ Cornelius, OR ∙ Metzger, ORFull Alert Message
URGENT - WEATHER MESSAGE National Weather Service Portland OR 1013 PM PDT Fri Oct 30 2026 ...FROST ADVISORY REMAINS IN EFFECT UNTIL 9 AM PDT SATURDAY... * WHAT...Temperatures of 36 degrees or lower will result in frost formation. * WHERE...Portions of northwest and west central Oregon and southwest Washington. * WHEN...Until 9 AM PDT Saturday. * IMPACTS...Frost could harm sensitive outdoor vegetation. Sensitive outdoor plants may be killed if left uncovered. * ADDITIONAL DETAILS...There is a 20-30% chance that temperatures will fall below 32 degrees, especially for locations that do not develop fog. Frost and freeze headlines are only issued through the growing season of April 1 through October 31. Therefore, frost or freeze headlines will not be issued beginning November 1, even though similar low temperatures are possible. Frost and freeze headlines will no longer be issued this growing season for the Upper Hood River Valley, southern Willamette Valley, south Washington Cascade Foothills, and north Oregon Coast Range as these locations have already experienced a hard freeze earlier in October. 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
ORZ101>103-105-107>109-111>115-119-123>125-WAZ203>207-311600- /O.CON.KPQR.FR.Y.0017.261031T0700Z-261031T1600Z/ Clatsop County Coast-Tillamook County Coast-Central Coast of Oregon-Central Oregon Coast Range Lowlands-Central Oregon Coast Range-Lower Columbia River-Tualatin Valley-Inner Portland Metro- East Portland Metro-Outer Southeast Portland Metro-West Central Willamette Valley-East Central Willamette Valley-West Columbia River Gorge of Oregon above 500 ft-Clackamas County Cascade Foothills-Cascade Foothills of Marion and Linn Counties-Lane County Cascade Foothills-Willapa Hills-Cowlitz County Lowlands- North Clark County Lowlands-Inner Vancouver Metro-East Clark County Lowlands- Including the cities of Ridgefield, Neskowin, Dallas, Evergreen, Tigard, Silver Falls, Gresham, McKenzie Bridge, Astoria, Boring, Monmouth, Silverton, Waldport, Alsea, Rainier, Rhododendron, Estacada, Oakridge, Forest Grove, Salmon Creek, Longview, Sherwood, Valsetz, Lincoln City, St. Helens, Hillsboro, Pacific City, Tillamook, Castle Rock, Mary's Peak, Kalama, Welches, La Center, Sellwood, Brush Prairie, Battle Ground, Camas, Detroit, Troutdale, Newport, Woodburn, Grand Ronde, Rockaway Beach, Warrenton, Happy Valley, Eagle Creek, Clatskanie, Lake Oswego, Keizer, Newberg, Manzanita, Rockcreek, Vancouver, Brightwood, Vida, Salem, Woodland, Fairview, Seaside, Scappoose, Stayton, Kelso, McMinnville, Molalla, Sandy, Alma, Wilsonville, Washougal, Mapleton, Cannon Beach, Cherryville, Florence, Brooklyn, Mill City, Oregon City, Horton, Portland, Corbett, Hockinson, Sheridan, and Hoskins 1013 PM PDT Fri Oct 30 2026
