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Cold Weather Advisory


URGENT - WEATHER MESSAGE
National Weather Service Portland OR
1208 PM PST Wed Jan 21 2026

ORZ104-105-108-123-WAZ204>206-221800-
/O.NEW.KPQR.CW.Y.0001.260122T0800Z-260122T1800Z/
/O.EXA.KPQR.AS.Y.0002.000000T0000Z-260123T2000Z/
North Oregon Coast Range Lowlands-Central Oregon Coast Range
Lowlands-Lower Columbia River-Clackamas County Cascade Foothills-
Cowlitz County Lowlands-North Clark County Lowlands-Inner
Vancouver Metro-
Including the cities of Clark County Fairgrounds, Vernonia,
Spitzenberg, Brush Prairie, Salmon Creek, Burnt Woods, Vancouver,
Blodgett, Sifton, Swisshome, Kelso, Proebstel, Ridgefield,
Welches, Scappoose, Battle Ground, Cherryville, Blaine,
Klaskanine Summit, Svenson, Tiernan, Glenwood, Grand Ronde Indian
Reservation, Rainier, Shortys Corner, Vancouver Downtown, St.
Helens, Longview, Alston, Three Lynx, Hockinson, Mapleton,
Warren, Orchards, Kalama, Mayger, Hoskins, Brightwood, Jewell,
Evergreen, Rose Valley, La Center, Rhododendron, Deadwood,
Woodland, Zigzag, Grand Ronde, Castle Rock, Alma, Alsea,
Clatskanie, Necanicum, and Knappa
1208 PM PST Wed Jan 21 2026

...AIR STAGNATION ADVISORY IN EFFECT UNTIL NOON PST FRIDAY...
...COLD WEATHER ADVISORY IN EFFECT FROM MIDNIGHT TONIGHT TO 10 AM
PST THURSDAY...

* WHAT...For the Air Stagnation Advisory, light winds and limited
  air movement will lead to a period of stagnant air conditions. For
  the Cold Weather Advisory, very cold wind chills as low as 20
  expected.

* WHERE...North and Central Coast Range Valleys of Oregon, Lower
  Columbia River and Cowlitz River Valleys, Clackamas County Cascade
  Foothills, North Clark County Lowlands, and Inner Vancouver Metro.

* WHEN...For the Air Stagnation Advisory, until noon PST Friday. For
  the Cold Weather Advisory, from midnight tonight to 10 AM PST
  Thursday.

* IMPACTS...Deteriorating air quality may cause issues for people
  with respiratory problems. Wind chill values  and very cold
  temperatures can lead to hypothermia with prolonged exposure.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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.

People with respiratory illness should follow their physician`s
advice for dealing with high levels of air pollution during periods
of stagnant air, especially if an Air Quality Alert is in effect for
your area. To see if an Air Quality Alert is in effect for your
area, go to www.weather.gov/pqr and left-click your location on the
homepage map display. Alternatively, you could also type your
location into the search bar found on the top-left hand side of the
homepage. From there, you will see an Air Quality Alert listed at
the top if one is in effect for your location; you can click the
alert to read more details if applicable.

Those planning to venture outdoors should use common sense and dress
warmly, making sure exposed skin is properly covered to prevent
frostbite and/or hypothermia.

Use caution while traveling outside. Wear appropriate clothing, a
hat, and gloves.

Keep pets indoors as much as possible.

Make sure outdoor animals have a warm, dry shelter, food, and
unfrozen water.

Make frequent checks on older family, friends, and neighbors. Ensure
portable heaters are used correctly. Do not use generators or grills
inside.

If you do not have heat in your home or lack shelter, you can call
211 for assistance locating appropriate shelter from the cold.

&&

$$

URGENT - WEATHER MESSAGE
National Weather Service Portland OR
1208 PM PST Wed Jan 21 2026

ORZ106-107-110-113-WAZ208-221800-
/O.NEW.KPQR.CW.Y.0001.260122T0800Z-260122T1800Z/
North Oregon Coast Range-Central Oregon Coast Range-Portland West
Hills and Chehalem Mountain-Outer Southeast Portland Metro-South
Washington Cascade Foothills-
Including the cities of Mary`s Peak, Boring, Skyline Drive,
Wilson River Summit, Estacada, Valsetz, Sunset Summit, Toutle,
Horton, Sylvan Hill, Chehalem Mountain, Yacolt, Lake Merwin,
Amboy, and Sandy
1208 PM PST Wed Jan 21 2026

...COLD WEATHER ADVISORY IN EFFECT FROM MIDNIGHT TONIGHT TO 10 AM
PST THURSDAY...

* WHAT...Very cold wind chills as low as 20 expected.

* WHERE...North and Central Coast Range Mountains of Oregon,
  Portland Metro Hills, and South Washington Cascade Foothills.

* WHEN...From midnight tonight to 10 AM PST Thursday.

* IMPACTS...Wind chill values and very cold temperatures can lead to
  hypothermia with prolonged exposure.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Those planning to venture outdoors should use common sense and dress
warmly, making sure exposed skin is properly covered to prevent
frostbite and/or hypothermia.

Use caution while traveling outside. Wear appropriate clothing, a
hat, and gloves.

Keep pets indoors as much as possible.

Make sure outdoor animals have a warm, dry shelter, food, and
unfrozen water.

Make frequent checks on older family, friends, and neighbors. Ensure
portable heaters are used correctly. Do not use generators or grills
inside.

If you do not have heat in your home or lack shelter, you can call
211 for assistance locating appropriate shelter from the cold.

&&

$$

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

42


Air Stagnation Advisory


URGENT - WEATHER MESSAGE
National Weather Service Portland OR
1208 PM PST Wed Jan 21 2026

ORZ104-105-108-123-WAZ204>206-221800-
/O.NEW.KPQR.CW.Y.0001.260122T0800Z-260122T1800Z/
/O.EXA.KPQR.AS.Y.0002.000000T0000Z-260123T2000Z/
North Oregon Coast Range Lowlands-Central Oregon Coast Range
Lowlands-Lower Columbia River-Clackamas County Cascade Foothills-
Cowlitz County Lowlands-North Clark County Lowlands-Inner
Vancouver Metro-
Including the cities of Clark County Fairgrounds, Vernonia,
Spitzenberg, Brush Prairie, Salmon Creek, Burnt Woods, Vancouver,
Blodgett, Sifton, Swisshome, Kelso, Proebstel, Ridgefield,
Welches, Scappoose, Battle Ground, Cherryville, Blaine,
Klaskanine Summit, Svenson, Tiernan, Glenwood, Grand Ronde Indian
Reservation, Rainier, Shortys Corner, Vancouver Downtown, St.
Helens, Longview, Alston, Three Lynx, Hockinson, Mapleton,
Warren, Orchards, Kalama, Mayger, Hoskins, Brightwood, Jewell,
Evergreen, Rose Valley, La Center, Rhododendron, Deadwood,
Woodland, Zigzag, Grand Ronde, Castle Rock, Alma, Alsea,
Clatskanie, Necanicum, and Knappa
1208 PM PST Wed Jan 21 2026

...AIR STAGNATION ADVISORY IN EFFECT UNTIL NOON PST FRIDAY...
...COLD WEATHER ADVISORY IN EFFECT FROM MIDNIGHT TONIGHT TO 10 AM
PST THURSDAY...

* WHAT...For the Air Stagnation Advisory, light winds and limited
  air movement will lead to a period of stagnant air conditions. For
  the Cold Weather Advisory, very cold wind chills as low as 20
  expected.

* WHERE...North and Central Coast Range Valleys of Oregon, Lower
  Columbia River and Cowlitz River Valleys, Clackamas County Cascade
  Foothills, North Clark County Lowlands, and Inner Vancouver Metro.

* WHEN...For the Air Stagnation Advisory, until noon PST Friday. For
  the Cold Weather Advisory, from midnight tonight to 10 AM PST
  Thursday.

* IMPACTS...Deteriorating air quality may cause issues for people
  with respiratory problems. Wind chill values  and very cold
  temperatures can lead to hypothermia with prolonged exposure.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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.

People with respiratory illness should follow their physician`s
advice for dealing with high levels of air pollution during periods
of stagnant air, especially if an Air Quality Alert is in effect for
your area. To see if an Air Quality Alert is in effect for your
area, go to www.weather.gov/pqr and left-click your location on the
homepage map display. Alternatively, you could also type your
location into the search bar found on the top-left hand side of the
homepage. From there, you will see an Air Quality Alert listed at
the top if one is in effect for your location; you can click the
alert to read more details if applicable.

Those planning to venture outdoors should use common sense and dress
warmly, making sure exposed skin is properly covered to prevent
frostbite and/or hypothermia.

Use caution while traveling outside. Wear appropriate clothing, a
hat, and gloves.

Keep pets indoors as much as possible.

Make sure outdoor animals have a warm, dry shelter, food, and
unfrozen water.

Make frequent checks on older family, friends, and neighbors. Ensure
portable heaters are used correctly. Do not use generators or grills
inside.

If you do not have heat in your home or lack shelter, you can call
211 for assistance locating appropriate shelter from the cold.

&&

$$

U.S. Dept. of Commerce
NOAA National Weather Service
1325 East West Highway
Silver Spring, MD 20910
E-mail: w-nws.webmaster@noaa.gov
Page last modified: June 2, 2009
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