Dense Fog Advisory
Status
New Event ExpiredStart Time
Tue 10/21/2025 08:19 AM EDTEnd Time
Tue 10/21/2025 02:00 PM EDTSignificance
AdvisoryImpacts
Low impact
Locations Affected
Portland, OR ∙ Eugene, OR ∙ Salem, OR ∙ Vancouver, WA ∙ Gresham, OR ∙ Beaverton, OR ∙ Hillsboro, OR ∙ Springfield, OR ∙ Corvallis, OR ∙ Albany, ORFull Alert Message
URGENT - WEATHER MESSAGE National Weather Service Portland OR 519 AM PDT Tue Oct 21 2025 ...DENSE FOG ADVISORY IN EFFECT UNTIL 11 AM PDT THIS MORNING... * WHAT...Visibility one quarter mile or less in dense fog. * WHERE...Central and Southern Willamette Valley, South Washington and North and Central Oregon Coast, Portland Metro Lowlands, Greater Vancouver Metro, Lower Columbia River and Cowlitz River Valleys, North Oregon Coast Range Lowlands, and Portland West Hills and Chehalem Mountain. * WHEN...Until 11 AM PDT this morning. * IMPACTS...Low visibility could make driving conditions hazardous. PRECAUTIONARY/PREPAREDNESS ACTIONS... If driving, slow down, use your headlights, and leave plenty of distance ahead of you. If driving, slow down and leave plenty of distance ahead of you. Pedestrians and cyclists should wear bright or reflective clothing to increase the chances of being seen by others in poor visibility conditions.
Technical Header
ORZ101>104-108>112-114>118-WAZ201-204>207-211800- /O.NEW.KPQR.FG.Y.0010.251021T1219Z-251021T1800Z/ Clatsop County Coast-Tillamook County Coast-Central Coast of Oregon-North Oregon Coast Range Lowlands-Lower Columbia River- Tualatin Valley-Portland West Hills and Chehalem Mountain-Inner Portland Metro-East Portland Metro-West Central Willamette Valley- East Central Willamette Valley-Benton County Lowlands-Linn County Lowlands-Lane County Lowlands-South Washington Coast-Cowlitz County Lowlands-North Clark County Lowlands-Inner Vancouver Metro- East Clark County Lowlands- Including the cities of Castle Rock, Raymond, Sherwood, Neskowin, Oregon City, Portland, Gresham, Keizer, Kelso, Eugene, Vernonia, Waldport, Battle Ground, Hockinson, Brush Prairie, Wilsonville, Fairview, Corvallis, Washougal, Camas, Silverton, Tigard, Kalama, Springfield, Sellwood, Philomath, Monmouth, Harrisburg, Eagle Creek, Woodburn, Skyline Drive, Dallas, Troutdale, Lebanon, Lake Oswego, Necanicum, Tillamook, Tokeland, Rainier, Florence, Ocean Park, Seaside, Grand Ronde Indian Reservation, Pacific City, Forest Grove, Scappoose, Albany, La Center, Brownsville, Molalla, Longview, Cottage Grove, Monroe, McMinnville, Rockcreek, Happy Valley, Vancouver, Cannon Beach, Glenwood, Chehalem Mountain, Hillsboro, Creswell, Newport, Salmon Creek, Junction City, Long Beach, Rockaway Beach, Woodland, Lincoln City, St. Helens, Ridgefield, Stayton, Warrenton, Jewell, Newberg, Knappa, Evergreen, Clatskanie, Salem, Manzanita, Astoria, Naselle, Sheridan, and Sylvan Hill 519 AM PDT Tue Oct 21 2025
