weather.gov     
National Weather Service

Watches, Warnings & Advisories
NWS Homepage

One product issued by NWS for: Salem OR
Share |


Air Stagnation Advisory

URGENT - WEATHER MESSAGE
National Weather Service Portland OR
1150 AM PST Thu Jan 27 2022

ORZ003>007-010-012-014-016-WAZ020-022-039-040-046-281200-
/O.CON.KPQR.AS.Y.0002.000000T0000Z-220129T0000Z/
Coast Range of Northwest Oregon-
Central Coast Range of Western Oregon-Lower Columbia-
Greater Portland Metro Area-Central Willamette Valley-
Northern Oregon Cascade Foothills-
Cascade Foothills in Lane County-Upper Hood River Valley-
Central Columbia River Gorge-Willapa Hills-I-
5 Corridor in Cowlitz County-Greater Vancouver Area-
South Washington Cascade Foothills-
Including the cities of Vernonia, Jewell, Sunset Summit,
Lees Camp, Trask, Grande Ronde, Burnt Woods, Tidewater,
Swisshome, Veneta, St. Helens, Clatskanie, Hillsboro, Portland,
Wilsonville, Oregon City, Gresham, Troutdale, Salem, McMinnville,
Woodburn, Stayton, Dallas, Sandy, Estacada, Sweet Home, Vida,
Jasper, Lowell, Cottage Grove, Odell, Hood River, Willapa,
Frances, Ryderwood, Longview, Kelso, Castle Rock, Battle Ground,
Ridgefield, Washougal, Yacolt, Amboy, Toutle, Lake Merwin,
Yale Lake, Cougar, Carson, and Underwood
1150 AM PST Thu Jan 27 2022

...AIR STAGNATION ADVISORY REMAINS IN EFFECT UNTIL 4 PM PST
FRIDAY BELOW 1500 FEET...

* WHAT...A period of stagnant air with light winds is expected.
  below 1500 feet.

* WHERE...Portions of southwest Washington and northwest Oregon.

* WHEN...Until 4 PM PST Friday.

* IMPACTS...Air stagnation could result in the development and
  persistence of poor air quality.

*ADDITIONAL DETAILS...Areas with increased winds, especially
 through the Portland-Metro area, may see less stagnant air due
 to mixing. However, winds are expected to lower overnight and air
 likely will become stagnant once more.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

People with respiratory illness should follow their physician`s
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.

&&

$$

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



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: May 16, 2007
NATIONAL WEATHER SERVICE: for Safety, for Work, for Fun - FOR LIFE