AIR STAGNATION ADVISORY
Warning Issue Date: 101 PM PST FRI DEC 25 2009
...AIR STAGNATION ADVISORY REMAINS IN EFFECT UNTIL 4 PM PST
SATURDAY...
AN AIR STAGNATION ADVISORY REMAINS IN EFFECT UNTIL 4 PM PST
SATURDAY.
* AIR QUALITY MAY DETERIORATE IN VALLEYS AND BASINS DUE TO HIGH
PRESSURE AND VERY LIGHT WINDS LIMITING AIR MOVEMENT. THIS WILL
CAUSE THE ACCUMULATION OF PARTICULATE MATTER IN VALLEYS AND
BASINS BELOW 3500 FEET.
* POOR AIR QUALITY MAY AFFECT PERSONS WITH RESPIRATORY PROBLEMS
AND PERSONS ENGAGED IN STRENUOUS OUTDOOR ACTIVITIES.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
AN AIR STAGNATION ADVISORY INDICATES THAT DUE TO LIMITED MOVEMENT
OF AN AIR MASS ACROSS THE ADVISORY AREA...POLLUTION WILL
INCREASE. CHECK WITH YOUR LOCAL AIR QUALITY AGENCY FOR POSSIBLE
RESTRICTIONS IN YOUR AREA. FOR ADDITIONAL WEATHER INFORMATION...
CHECK OUR WEBSITE AT WWW.WEATHER.GOV/PENDLETON.
$$
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