Air Stagnation Advisory

ORZ041-044-505-507-WAZ024-026029-520-521-102000-
/O.CON.KPDT.AS.Y.0003.000000T0000Z-171214T1800Z/
East Columbia River Gorge-Lower Columbia Basin of Oregon-
John Day Basin-Foothills of the Northern Blue Mountains of Oregon-
Eastern Columbia River Gorge of Washington-Kittitas Valley-
Yakima Valley-Lower Columbia Basin of Washington-
Foothills of the Blue Mountains of Washington-
East Slopes of the Washington Cascades-Simcoe Highlands-
including the cities of Arlington, The Dalles, Boardman,
Hermiston, Ione, Dayville, John Day, Mitchell, Monument, Spray,
Pendleton, Pilot Rock, White Salmon, Ellensburg, Thorp, Naches,
Sunnyside, Toppenish, Yakima, Connell, Prosser, Tri-Cities,
Dayton, Waitsburg, Walla Walla, Appleton, Cle Elum, Cliffdell,
Goldendale, and Bickleton
426 AM PST Sun Dec 10 2017

…AIR STAGNATION ADVISORY REMAINS IN EFFECT UNTIL 10 AM PST
THURSDAY…

* AIR QUALITY…Moderate to unhealthy.

* TIMING…Stagnant air to persist for several more days.

* IMPACTS…Persons with respiratory issues should follow the
advice of their physician on how to deal with poor air
quality. Also outdoor burning may be limited, so please
consult with your local burn agencies.

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.

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