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Home Return to list Dense Fog Advisory 0012 Issued by the Portland Forecast Office
Action: New Issued At: 2025-11-02 09:27:45 374 WWUS76 KPQR 021527 NPWPQR URGENT - WEATHER MESSAGE National Weather Service Portland OR 727 AM PST Sun Nov 2 2025 ORZ104-105-108-109-114-117-118-WAZ202-204-021900- /O.NEW.KPQR.FG.Y.0012.251102T1527Z-251102T1900Z/ North Oregon Coast Range Lowlands-Central Oregon Coast Range Lowlands-Lower Columbia River-Tualatin Valley-West Central Willamette Valley-Linn County Lowlands-Lane County Lowlands- Willapa and Wahkiakum Lowlands-Cowlitz County Lowlands- Including the cities of Eugene, Grand Ronde Indian Reservation, Hillsboro, Dallas, Harrisburg, Creswell, Jewell, Kelso, Cathlamet, Longview, Kalama, Willapa, Alsea, Grand Ronde, Monmouth, Mapleton, Springfield, Rainier, Lebam, St. Helens, Brownsville, Scappoose, Sheridan, Castle Rock, Sherwood, Rosburg, Cottage Grove, Rockcreek, Forest Grove, Glenwood, Tigard, Woodland, Lebanon, Knappa, Junction City, Newberg, Clatskanie, Albany, McMinnville, Necanicum, Vernonia, Hoskins, and Alma 727 AM PST Sun Nov 2 2025 ...DENSE FOG ADVISORY IN EFFECT UNTIL 11 AM PST THIS MORNING... * WHAT...Visibility one quarter mile or less in areas of dense fog. * WHERE...North and Central Coast Range Valleys of Oregon, Lower Columbia River and Cowlitz River Valleys, Tualatin Valley, West Central Willamette Valley, Linn County Lowlands, Lane County Lowlands, and Willapa and Wahkiakum Lowlands. * WHEN...Until 11 AM PST this morning. * IMPACTS...Low visibility could make driving conditions hazardous. PRECAUTIONARY/PREPAREDNESS ACTIONS... 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. && $$ For more information from the National Weather Service visit www.weather.gov/portland 23 Action: Continued Issued At: 2025-11-02 10:52:18 278 WWUS76 KPQR 021651 NPWPQR URGENT - WEATHER MESSAGE National Weather Service Portland OR 851 AM PST Sun Nov 2 2025 ORZ115-116-021900- /O.EXA.KPQR.FG.Y.0012.000000T0000Z-251102T1900Z/ East Central Willamette Valley-Benton County Lowlands- Including the cities of Philomath, Wilsonville, Salem, Keizer, Silverton, Corvallis, Molalla, Monroe, Woodburn, and Stayton 851 AM PST Sun Nov 2 2025 ...DENSE FOG ADVISORY IN EFFECT UNTIL 11 AM PST THIS MORNING... * WHAT...Visibility one quarter mile or less in areas of dense fog. * WHERE...East Central Willamette Valley and Benton County Lowlands. * WHEN...Until 11 AM PST this morning. * IMPACTS...Low visibility could make driving conditions hazardous. PRECAUTIONARY/PREPAREDNESS ACTIONS... If driving, slow down and leave plenty of distance ahead of you. Pedestrians and cyclists should wear bright or reflective clothing to increase the chances of being seen by others in poor visibility conditions. && $$ ORZ104-105-108-109-114-117-118-WAZ202-204-021900- /O.CON.KPQR.FG.Y.0012.000000T0000Z-251102T1900Z/ North Oregon Coast Range Lowlands-Central Oregon Coast Range Lowlands-Lower Columbia River-Tualatin Valley-West Central Willamette Valley-Linn County Lowlands-Lane County Lowlands- Willapa and Wahkiakum Lowlands-Cowlitz County Lowlands- Including the cities of Eugene, Grand Ronde Indian Reservation, Hillsboro, Dallas, Harrisburg, Creswell, Jewell, Kelso, Cathlamet, Longview, Kalama, Willapa, Alsea, Grand Ronde, Monmouth, Mapleton, Springfield, Rainier, Lebam, St. Helens, Brownsville, Scappoose, Sheridan, Castle Rock, Sherwood, Rosburg, Cottage Grove, Rockcreek, Forest Grove, Glenwood, Tigard, Woodland, Lebanon, Knappa, Junction City, Newberg, Clatskanie, Albany, McMinnville, Necanicum, Vernonia, Hoskins, and Alma 851 AM PST Sun Nov 2 2025 ...DENSE FOG ADVISORY REMAINS IN EFFECT UNTIL 11 AM PST THIS MORNING... * WHAT...Visibility one quarter mile or less in areas of dense fog. * WHERE...North and Central Coast Range Valleys of Oregon, Lower Columbia River and Cowlitz River Valleys, Tualatin Valley, West Central Willamette Valley, Linn County Lowlands, Lane County Lowlands, and Willapa and Wahkiakum Lowlands. * WHEN...Until 11 AM PST this morning. * IMPACTS...Low visibility could make driving conditions hazardous. PRECAUTIONARY/PREPAREDNESS ACTIONS... 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. && $$ For more information from the National Weather Service visit www.weather.gov/portland 23 Action: Area Extended Issued At: 2025-11-02 10:52:18 278 WWUS76 KPQR 021651 NPWPQR URGENT - WEATHER MESSAGE National Weather Service Portland OR 851 AM PST Sun Nov 2 2025 ORZ115-116-021900- /O.EXA.KPQR.FG.Y.0012.000000T0000Z-251102T1900Z/ East Central Willamette Valley-Benton County Lowlands- Including the cities of Philomath, Wilsonville, Salem, Keizer, Silverton, Corvallis, Molalla, Monroe, Woodburn, and Stayton 851 AM PST Sun Nov 2 2025 ...DENSE FOG ADVISORY IN EFFECT UNTIL 11 AM PST THIS MORNING... * WHAT...Visibility one quarter mile or less in areas of dense fog. * WHERE...East Central Willamette Valley and Benton County Lowlands. * WHEN...Until 11 AM PST this morning. * IMPACTS...Low visibility could make driving conditions hazardous. PRECAUTIONARY/PREPAREDNESS ACTIONS... If driving, slow down and leave plenty of distance ahead of you. Pedestrians and cyclists should wear bright or reflective clothing to increase the chances of being seen by others in poor visibility conditions. && $$ ORZ104-105-108-109-114-117-118-WAZ202-204-021900- /O.CON.KPQR.FG.Y.0012.000000T0000Z-251102T1900Z/ North Oregon Coast Range Lowlands-Central Oregon Coast Range Lowlands-Lower Columbia River-Tualatin Valley-West Central Willamette Valley-Linn County Lowlands-Lane County Lowlands- Willapa and Wahkiakum Lowlands-Cowlitz County Lowlands- Including the cities of Eugene, Grand Ronde Indian Reservation, Hillsboro, Dallas, Harrisburg, Creswell, Jewell, Kelso, Cathlamet, Longview, Kalama, Willapa, Alsea, Grand Ronde, Monmouth, Mapleton, Springfield, Rainier, Lebam, St. Helens, Brownsville, Scappoose, Sheridan, Castle Rock, Sherwood, Rosburg, Cottage Grove, Rockcreek, Forest Grove, Glenwood, Tigard, Woodland, Lebanon, Knappa, Junction City, Newberg, Clatskanie, Albany, McMinnville, Necanicum, Vernonia, Hoskins, and Alma 851 AM PST Sun Nov 2 2025 ...DENSE FOG ADVISORY REMAINS IN EFFECT UNTIL 11 AM PST THIS MORNING... * WHAT...Visibility one quarter mile or less in areas of dense fog. * WHERE...North and Central Coast Range Valleys of Oregon, Lower Columbia River and Cowlitz River Valleys, Tualatin Valley, West Central Willamette Valley, Linn County Lowlands, Lane County Lowlands, and Willapa and Wahkiakum Lowlands. * WHEN...Until 11 AM PST this morning. * IMPACTS...Low visibility could make driving conditions hazardous. PRECAUTIONARY/PREPAREDNESS ACTIONS... 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. && $$ For more information from the National Weather Service visit www.weather.gov/portland 23 Action: Expired Issued At: 2025-11-02 13:06:36 747 WWUS76 KPQR 021906 NPWPQR URGENT - WEATHER MESSAGE National Weather Service Portland OR 1106 AM PST Sun Nov 2 2025 ORZ104-105-108-109-114>118-WAZ202-204-022015- /O.EXP.KPQR.FG.Y.0012.000000T0000Z-251102T1900Z/ North Oregon Coast Range Lowlands-Central Oregon Coast Range Lowlands-Lower Columbia River-Tualatin Valley-West Central Willamette Valley-East Central Willamette Valley-Benton County Lowlands-Linn County Lowlands-Lane County Lowlands-Willapa and Wahkiakum Lowlands-Cowlitz County Lowlands- Including the cities of Eugene, Philomath, Grand Ronde Indian Reservation, Hillsboro, Dallas, Harrisburg, Monroe, Creswell, Jewell, Kelso, Cathlamet, Longview, Kalama, Willapa, Alsea, Grand Ronde, Monmouth, Mapleton, Springfield, Molalla, Rainier, Lebam, St. Helens, Brownsville, Scappoose, Sheridan, Castle Rock, Sherwood, Rosburg, Cottage Grove, Silverton, Rockcreek, Forest Grove, Glenwood, Woodburn, Tigard, Corvallis, Woodland, Lebanon, Knappa, Wilsonville, Junction City, Newberg, Clatskanie, Salem, Keizer, McMinnville, Albany, Necanicum, Vernonia, Hoskins, Alma, and Stayton 1106 AM PST Sun Nov 2 2025 ...DENSE FOG ADVISORY HAS EXPIRED... Webcam and surface weather observations show dense fog has lifted in most locations. Locations that are still observing dense fog should see rapid improvement over the next hour. Therefore, the Dense Fog Advisory will be allowed to expire. $$ For more information from the National Weather Service visit www.weather.gov/portland 23 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||