AIR STAGNATION ADVISORY
Warning Issue Date: 949 AM 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.
* STRONG HIGH PRESSURE AND INVERSION CONDITIONS WILL MAINTAIN A
GRIP ON THE REGION INTO SATURDAY.
* COLD AIR WILL REMAIN TRAPPED IN THE VALLEYS WITH WARMER
CONDITIONS IN THE MOUNTAINS.
* DUE TO POOR VENTILATION...POLLUTANTS SUCH AS SMOKE AND OTHER
AIRBORNE PARTICULATES ARE TRAPPED AND ACCUMULATING IN THE
VALLEYS WITH DIMINISHING AIR QUALITY.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
AN AIR STAGNATION ADVISORY INDICATES THAT DUE TO LIMITED MOVEMENT
OF AN AIR MASS ACROSS THE ADVISORY AREA...POLLUTION WILL
INCREASE.
$$
STAVISH
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