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Dense Fog Advisory 0011
Issued by the Portland Forecast Office

Action Issued Starts Expiration
New 2026-02-25 07:33:12 2026-02-25 07:32:00 2026-02-25 12:00:00
Time Extended 2026-02-25 11:55:20 2026-02-25 14:00:00
Expired 2026-02-25 11:55:20 2026-02-25 12:00:00
Expired 2026-02-25 14:21:23 2026-02-25 14:00:00


Action: New
Issued At: 2026-02-25 07:33:12

585 
WWUS76 KPQR 251332
NPWPQR

URGENT - WEATHER MESSAGE
National Weather Service Portland OR
532 AM PST Wed Feb 25 2026

ORZ104-108-109-111-112-114-115-WAZ204>207-251800-
/O.NEW.KPQR.FG.Y.0011.260225T1332Z-260225T1800Z/
North Oregon Coast Range Lowlands-Lower Columbia River-Tualatin
Valley-Inner Portland Metro-East Portland Metro-West Central
Willamette Valley-East Central Willamette Valley-Cowlitz County
Lowlands-North Clark County Lowlands-Inner Vancouver Metro-East
Clark County Lowlands-
Including the cities of Stayton, Clatskanie, Troutdale, Eagle
Creek, Monmouth, McMinnville, Kalama, Camas, St. Helens, Oregon
City, Salmon Creek, Glenwood, Longview, Sherwood, Hockinson,
Brush Prairie, Ridgefield, Newberg, Hillsboro, Rockcreek,
Fairview, Tigard, Grand Ronde Indian Reservation, Vancouver,
Keizer, Evergreen, Happy Valley, Dallas, Salem, Portland,
Vernonia, La Center, Woodburn, Castle Rock, Sellwood, Jewell,
Woodland, Necanicum, Knappa, Lake Oswego, Silverton, Sheridan,
Molalla, Washougal, Wilsonville, Gresham, Rainier, Forest Grove,
Kelso, Scappoose, and Battle Ground
532 AM PST Wed Feb 25 2026

...DENSE FOG ADVISORY IN EFFECT UNTIL 10 AM PST THIS MORNING...

* WHAT...Visibility one quarter mile or less in dense fog.

* WHERE...Portland Metro Lowlands, Greater Vancouver Metro, Lower 
  Columbia River and Cowlitz River Valleys, Central Willamette 
  Valley, and North Oregon Coast Range Lowlands.

* WHEN...Until 10 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

ts


Action: Time Extended
Issued At: 2026-02-25 11:55:20

753 
WWUS76 KPQR 251754
NPWPQR

URGENT - WEATHER MESSAGE
National Weather Service Portland OR
954 AM PST Wed Feb 25 2026

ORZ104-114-115-251900-
/O.EXP.KPQR.FG.Y.0011.000000T0000Z-260225T1800Z/
North Oregon Coast Range Lowlands-West Central Willamette Valley-
East Central Willamette Valley-
Including the cities of Jewell, McMinnville, Dallas, Monmouth,
Keizer, Glenwood, Wilsonville, Molalla, Grand Ronde Indian
Reservation, Stayton, Woodburn, Silverton, Sheridan, Salem,
Vernonia, Newberg, Necanicum, and Knappa
954 AM PST Wed Feb 25 2026

...DENSE FOG ADVISORY WILL EXPIRE AT 10 AM PST THIS MORNING...

Visibilities have risen above one quarter mile, so the dense fog 
advisory will be allowed to expire. Localized areas of dense fog 
could remain over the next couple of hours, so use caution when 
driving.

$$

ORZ108-109-111-112-WAZ204>207-252000-
/O.EXT.KPQR.FG.Y.0011.000000T0000Z-260225T2000Z/
Lower Columbia River-Tualatin Valley-Inner Portland Metro-East
Portland Metro-Cowlitz County Lowlands-North Clark County
Lowlands-Inner Vancouver Metro-East Clark County Lowlands-
Including the cities of Portland, Troutdale, Tigard, Lake Oswego,
St. Helens, Gresham, Kalama, Clatskanie, Rockcreek, Kelso, Forest
Grove, Fairview, Rainier, Vancouver, Castle Rock, Camas,
Sherwood, Happy Valley, Battle Ground, Brush Prairie, Washougal,
Longview, Woodland, Eagle Creek, Hockinson, Oregon City, Salmon
Creek, Scappoose, La Center, Evergreen, Sellwood, Ridgefield, and
Hillsboro
954 AM PST Wed Feb 25 2026

...DENSE FOG ADVISORY NOW IN EFFECT UNTIL NOON PST TODAY...

* WHAT...Visibility one quarter mile or less in dense fog.

* WHERE...Portland Metro Lowlands, Greater Vancouver Metro, and 
  Lower Columbia River and Cowlitz River Valleys.

* WHEN...Until noon PST today.

* 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

03


Action: Expired
Issued At: 2026-02-25 11:55:20

753 
WWUS76 KPQR 251754
NPWPQR

URGENT - WEATHER MESSAGE
National Weather Service Portland OR
954 AM PST Wed Feb 25 2026

ORZ104-114-115-251900-
/O.EXP.KPQR.FG.Y.0011.000000T0000Z-260225T1800Z/
North Oregon Coast Range Lowlands-West Central Willamette Valley-
East Central Willamette Valley-
Including the cities of Jewell, McMinnville, Dallas, Monmouth,
Keizer, Glenwood, Wilsonville, Molalla, Grand Ronde Indian
Reservation, Stayton, Woodburn, Silverton, Sheridan, Salem,
Vernonia, Newberg, Necanicum, and Knappa
954 AM PST Wed Feb 25 2026

...DENSE FOG ADVISORY WILL EXPIRE AT 10 AM PST THIS MORNING...

Visibilities have risen above one quarter mile, so the dense fog 
advisory will be allowed to expire. Localized areas of dense fog 
could remain over the next couple of hours, so use caution when 
driving.

$$

ORZ108-109-111-112-WAZ204>207-252000-
/O.EXT.KPQR.FG.Y.0011.000000T0000Z-260225T2000Z/
Lower Columbia River-Tualatin Valley-Inner Portland Metro-East
Portland Metro-Cowlitz County Lowlands-North Clark County
Lowlands-Inner Vancouver Metro-East Clark County Lowlands-
Including the cities of Portland, Troutdale, Tigard, Lake Oswego,
St. Helens, Gresham, Kalama, Clatskanie, Rockcreek, Kelso, Forest
Grove, Fairview, Rainier, Vancouver, Castle Rock, Camas,
Sherwood, Happy Valley, Battle Ground, Brush Prairie, Washougal,
Longview, Woodland, Eagle Creek, Hockinson, Oregon City, Salmon
Creek, Scappoose, La Center, Evergreen, Sellwood, Ridgefield, and
Hillsboro
954 AM PST Wed Feb 25 2026

...DENSE FOG ADVISORY NOW IN EFFECT UNTIL NOON PST TODAY...

* WHAT...Visibility one quarter mile or less in dense fog.

* WHERE...Portland Metro Lowlands, Greater Vancouver Metro, and 
  Lower Columbia River and Cowlitz River Valleys.

* WHEN...Until noon PST today.

* 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

03


Action: Expired
Issued At: 2026-02-25 14:21:23

541 
WWUS76 KPQR 252020
NPWPQR

URGENT - WEATHER MESSAGE
National Weather Service Portland OR
1220 PM PST Wed Feb 25 2026

ORZ108-109-111-112-WAZ204>207-252130-
/O.EXP.KPQR.FG.Y.0011.000000T0000Z-260225T2000Z/
Lower Columbia River-Tualatin Valley-Inner Portland Metro-East
Portland Metro-Cowlitz County Lowlands-North Clark County
Lowlands-Inner Vancouver Metro-East Clark County Lowlands-
Including the cities of Portland, Troutdale, Tigard, Lake Oswego,
St. Helens, Gresham, Kalama, Clatskanie, Rockcreek, Kelso, Forest
Grove, Fairview, Rainier, Vancouver, Castle Rock, Camas,
Sherwood, Happy Valley, Battle Ground, Brush Prairie, Washougal,
Longview, Woodland, Eagle Creek, Hockinson, Oregon City, Salmon
Creek, Scappoose, La Center, Evergreen, Sellwood, Ridgefield, and
Hillsboro
1220 PM PST Wed Feb 25 2026

...DENSE FOG ADVISORY HAS EXPIRED...

Visibilities have risen above one quarter mile, so the dense fog 
advisory has been allowed to expire.

$$

For more information from the National Weather Service visit 
www.weather.gov/portland

03



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