AIR STAGNATION ADVISORY
Warning Issue Date: 909 AM PST MON NOV 30 2009
...AIR STAGNATION ADVISORY REMAINS IN EFFECT UNTIL NOON PST
FRIDAY...
AN AIR STAGNATION ADVISORY REMAINS IN EFFECT UNTIL NOON PST
FRIDAY.
HIGH PRESSURE WILL BE OVER THE AREA THROUGH THE END OF THIS WEEK.
LIGHT WINDS AND LOW INVERSION LEVELS ARE EXPECTED OVER THE ROGUE
AND ILLINOIS VALLEYS. THIS WILL RESULT IN LITTLE MIXING OF THE AIR
AND POOR VENTILATION...WITH THE POTENTIAL FOR POLLUTANTS TO BE
TRAPPED NEAR GROUND LEVEL.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
AN AIR STAGNATION ADVISORY INDICATES THAT DUE TO LIMITED MOVEMENT
OF AN AIR MASS ACROSS THE ADVISORY AREA...POLLUTION MAY INCREASE.
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