701
WWUS76 KPDT 141618
NPWPDT

URGENT - WEATHER MESSAGE
National Weather Service Pendleton OR
818 AM PST Wed Jan 14 2026

WAZ027-150030-
/O.EXA.KPDT.FG.Y.0006.000000T0000Z-260114T2000Z/
/O.CON.KPDT.AS.Y.0002.000000T0000Z-260116T1800Z/
Yakima Valley-
Including the cities of Toppenish, Yakima, Naches, and Sunnyside
818 AM PST Wed Jan 14 2026

...DENSE FOG ADVISORY IN EFFECT UNTIL NOON PST TODAY...
...AIR STAGNATION ADVISORY REMAINS IN EFFECT UNTIL 10 AM PST
FRIDAY...

* WHAT...For the Dense Fog Advisory, visibility one quarter mile or
  less in dense fog. For the Air Stagnation Advisory, poor air
  quality will continue. This is due to an inversion and stagnant
  air conditions near the surface that will continue to trap
  pollutants.

* WHERE...Yakima Valley.

* WHEN...For the Dense Fog Advisory, until noon PST today. For the
  Air Stagnation Advisory, until 10 AM PST Friday.

* IMPACTS...Poor air quality may cause issues for people with
  respiratory problems. Low visibility could make driving conditions
  hazardous.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

An Air Stagnation Advisory indicates that due to limited movement of
an air mass across the advisory area, pollution has the potential to
increase to dangerous levels. Persons with respiratory illness
should follow their physicians advice for dealing with high levels
of air pollution during periods of stagnant air, state air quality
agencies highly recommend that no outdoor burning occur and that
residential wood burning devices be limited as much as possible.
According to state air quality agencies, prolonged periods of
stagnant air can hold pollutants close to the ground, where people
live and breathe. Check with your local burn agency for any current
restrictions in your area.

If driving, slow down, use your headlights, and leave plenty of
distance ahead of you.

&&

$$

WAZ026-150030-
/O.CON.KPDT.AS.Y.0002.000000T0000Z-260116T1800Z/
/O.CON.KPDT.FG.Y.0006.000000T0000Z-260114T2000Z/
Kittitas Valley-
Including the cities of Thorp and Ellensburg
818 AM PST Wed Jan 14 2026

...AIR STAGNATION ADVISORY REMAINS IN EFFECT UNTIL 10 AM PST
FRIDAY...
...DENSE FOG ADVISORY REMAINS IN EFFECT UNTIL NOON PST TODAY...

* WHAT...For the Dense Fog Advisory, visibility one quarter mile or
  less in dense fog. For the Air Stagnation Advisory, poor air
  quality will continue. This is due to an inversion and stagnant
  air conditions near the surface that will continue to trap
  pollutants.

* WHERE...Kittitas Valley.

* WHEN...For the Air Stagnation Advisory, until 10 AM PST Friday.
  For the Dense Fog Advisory, until noon PST today.

* IMPACTS...Poor air quality may cause issues for people with
  respiratory problems. Low visibility could make driving conditions
  hazardous, especially along portions of I-90.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

An Air Stagnation Advisory indicates that due to limited movement of
an air mass across the advisory area, pollution has the potential to
increase to dangerous levels. Persons with respiratory illness
should follow their physicians advice for dealing with high levels
of air pollution during periods of stagnant air, state air quality
agencies highly recommend that no outdoor burning occur and that
residential wood burning devices be limited as much as possible.
According to state air quality agencies, prolonged periods of
stagnant air can hold pollutants close to the ground, where people
live and breathe. Check with your local burn agency for any current
restrictions in your area.

If driving, slow down, use your headlights, and leave plenty of
distance ahead of you.

&&

$$

ORZ041-044-507-508-510-511-WAZ024-028-029-521-150030-
/O.CON.KPDT.AS.Y.0002.000000T0000Z-260116T1800Z/
Eastern Columbia River Gorge of Oregon-Lower Columbia Basin of
Oregon-Foothills of the Northern Blue Mountains of Oregon-
Foothills of the Southern Blue Mountains of Oregon-North Central
Oregon-Central Oregon-Eastern Columbia River Gorge of Washington-
Lower Columbia Basin of Washington-Foothills of the Blue
Mountains of Washington-Simcoe Highlands-
Including the cities of Connell, Athena, Arlington, Hermiston,
Waitsburg, Ione, Goldendale, Madras, Tri-Cities, Prosser, Moro,
Bickleton, Fossil, Dayton, Dufur, Heppner, Walla Walla, Maupin,
Condon, Pilot Rock, The Dalles, Prineville, Redmond, White
Salmon, Pendleton, Bend, and Boardman
818 AM PST Wed Jan 14 2026

...AIR STAGNATION ADVISORY REMAINS IN EFFECT UNTIL 10 AM PST
FRIDAY...

* WHAT...For the Dense Fog Advisory, visibility one quarter mile or
  less in dense fog. For the Air Stagnation Advisory, poor air
  quality will continue. This is due to an inversion and stagnant
  air conditions near the surface that will continue to trap
  pollutants.

* WHERE...Foothills of the Blue Mountains of Oregon and Washington,
  Eastern Columbia River Gorge of Oregon and Washington, Lower
  Columbia Basin of Oregon and Washington, North Central Oregon,
  Central Oregon, and Simcoe Highlands.

* WHEN...Until 10 AM PST Friday.

* IMPACTS...Poor air quality may cause issues for people with
  respiratory problems. Low visibility could make driving conditions
  hazardous, especially along portions of I-90.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

An Air Stagnation Advisory indicates that due to limited movement of
an air mass across the advisory area, pollution has the potential to
increase to dangerous levels. Persons with respiratory illness
should follow their physicians advice for dealing with high levels
of air pollution during periods of stagnant air, state air quality
agencies highly recommend that no outdoor burning occur and that
residential wood burning devices be limited as much as possible.
According to state air quality agencies, prolonged periods of
stagnant air can hold pollutants close to the ground, where people
live and breathe. Check with your local burn agency for any current
restrictions in your area.

&&

$$

MC