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Dense Fog Advisory 0012
Issued by the Portland Forecast Office

Action Issued Starts Expiration
New 2026-02-27 05:36:06 2026-02-27 05:35:00 2026-02-27 14:00:00
Area Extended 2026-02-27 07:23:10 2026-02-27 14:00:00
Continued 2026-02-27 07:23:10 2026-02-27 14:00:00
Continued 2026-02-27 08:25:42 2026-02-27 14:00:00
Area Extended 2026-02-27 08:25:42 2026-02-27 14:00:00
Expired 2026-02-27 13:53:21 2026-02-27 14:00:00


Action: New
Issued At: 2026-02-27 05:36:06

607 
WWUS76 KPQR 271135
NPWPQR

URGENT - WEATHER MESSAGE
National Weather Service Portland OR
335 AM PST Fri Feb 27 2026

ORZ118-272000-
/O.NEW.KPQR.FG.Y.0012.260227T1135Z-260227T2000Z/
Lane County Lowlands-
Including the cities of Cottage Grove, Creswell, Springfield,
Eugene, and Junction City
335 AM PST Fri Feb 27 2026

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

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

* WHERE...Lane County Lowlands.

* 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

10


Action: Area Extended
Issued At: 2026-02-27 07:23:10

270 
WWUS76 KPQR 271322
NPWPQR

URGENT - WEATHER MESSAGE
National Weather Service Portland OR
522 AM PST Fri Feb 27 2026

ORZ117-272000-
/O.EXA.KPQR.FG.Y.0012.000000T0000Z-260227T2000Z/
Linn County Lowlands-
Including the cities of Lebanon, Harrisburg, Albany, and
Brownsville
522 AM PST Fri Feb 27 2026

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

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

* WHERE...Linn County Lowlands.

* 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.

&&

$$

ORZ118-272000-
/O.CON.KPQR.FG.Y.0012.000000T0000Z-260227T2000Z/
Lane County Lowlands-
Including the cities of Cottage Grove, Creswell, Springfield,
Eugene, and Junction City
522 AM PST Fri Feb 27 2026

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

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

* WHERE...Lane County Lowlands.

* 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

10


Action: Continued
Issued At: 2026-02-27 07:23:10

270 
WWUS76 KPQR 271322
NPWPQR

URGENT - WEATHER MESSAGE
National Weather Service Portland OR
522 AM PST Fri Feb 27 2026

ORZ117-272000-
/O.EXA.KPQR.FG.Y.0012.000000T0000Z-260227T2000Z/
Linn County Lowlands-
Including the cities of Lebanon, Harrisburg, Albany, and
Brownsville
522 AM PST Fri Feb 27 2026

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

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

* WHERE...Linn County Lowlands.

* 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.

&&

$$

ORZ118-272000-
/O.CON.KPQR.FG.Y.0012.000000T0000Z-260227T2000Z/
Lane County Lowlands-
Including the cities of Cottage Grove, Creswell, Springfield,
Eugene, and Junction City
522 AM PST Fri Feb 27 2026

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

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

* WHERE...Lane County Lowlands.

* 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

10


Action: Continued
Issued At: 2026-02-27 08:25:42

727 
WWUS76 KPQR 271425
NPWPQR

URGENT - WEATHER MESSAGE
National Weather Service Portland OR
625 AM PST Fri Feb 27 2026

ORZ109-114>116-272000-
/O.EXA.KPQR.FG.Y.0012.000000T0000Z-260227T2000Z/
Tualatin Valley-West Central Willamette Valley-East Central
Willamette Valley-Benton County Lowlands-
Including the cities of Newberg, Keizer, McMinnville, Sherwood,
Sheridan, Silverton, Forest Grove, Hillsboro, Stayton, Monmouth,
Molalla, Rockcreek, Woodburn, Monroe, Wilsonville, Tigard,
Dallas, Salem, Corvallis, and Philomath
625 AM PST Fri Feb 27 2026

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

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

* WHERE...Central Willamette Valley, Tualatin Valley, and Benton 
  County Lowlands.

* 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.

&&

$$

ORZ117-118-272000-
/O.CON.KPQR.FG.Y.0012.000000T0000Z-260227T2000Z/
Linn County Lowlands-Lane County Lowlands-
Including the cities of Cottage Grove, Creswell, Lebanon,
Harrisburg, Springfield, Brownsville, Eugene, Junction City, and
Albany
625 AM PST Fri Feb 27 2026

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

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

* WHERE...Lane County Lowlands and Linn County Lowlands.

* 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

10


Action: Area Extended
Issued At: 2026-02-27 08:25:42

727 
WWUS76 KPQR 271425
NPWPQR

URGENT - WEATHER MESSAGE
National Weather Service Portland OR
625 AM PST Fri Feb 27 2026

ORZ109-114>116-272000-
/O.EXA.KPQR.FG.Y.0012.000000T0000Z-260227T2000Z/
Tualatin Valley-West Central Willamette Valley-East Central
Willamette Valley-Benton County Lowlands-
Including the cities of Newberg, Keizer, McMinnville, Sherwood,
Sheridan, Silverton, Forest Grove, Hillsboro, Stayton, Monmouth,
Molalla, Rockcreek, Woodburn, Monroe, Wilsonville, Tigard,
Dallas, Salem, Corvallis, and Philomath
625 AM PST Fri Feb 27 2026

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

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

* WHERE...Central Willamette Valley, Tualatin Valley, and Benton 
  County Lowlands.

* 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.

&&

$$

ORZ117-118-272000-
/O.CON.KPQR.FG.Y.0012.000000T0000Z-260227T2000Z/
Linn County Lowlands-Lane County Lowlands-
Including the cities of Cottage Grove, Creswell, Lebanon,
Harrisburg, Springfield, Brownsville, Eugene, Junction City, and
Albany
625 AM PST Fri Feb 27 2026

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

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

* WHERE...Lane County Lowlands and Linn County Lowlands.

* 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

10


Action: Expired
Issued At: 2026-02-27 13:53:21

752 
WWUS76 KPQR 271953
NPWPQR

URGENT - WEATHER MESSAGE
National Weather Service Portland OR
1153 AM PST Fri Feb 27 2026

ORZ109-114>118-272100-
/O.EXP.KPQR.FG.Y.0012.000000T0000Z-260227T2000Z/
Tualatin Valley-West Central Willamette Valley-East Central
Willamette Valley-Benton County Lowlands-Linn County Lowlands-
Lane County Lowlands-
Including the cities of Lebanon, Monroe, Junction City,
Philomath, Corvallis, Keizer, Harrisburg, Wilsonville, Cottage
Grove, Newberg, Rockcreek, Sheridan, Tigard, Springfield,
McMinnville, Hillsboro, Creswell, Eugene, Sherwood, Molalla,
Albany, Forest Grove, Dallas, Woodburn, Stayton, Silverton,
Monmouth, Salem, and Brownsville
1153 AM PST Fri Feb 27 2026

...DENSE FOG ADVISORY WILL EXPIRE AT NOON PST TODAY...

Widespread visibility has risen above one quarter mile, so the dense 
fog advisory will be allowed to expire. Localized areas of dense fog 
could continue through the next hour between Corvallis and Eugene, 
so drivers should be prepared for abrupt changes in visibility.

$$

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

03



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