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Air Stagnation Advisory

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE SPOKANE WA
1105 AM PST THU NOV 20 2014

...STAGNANT CONDITIONS EXPECTED THROUGH FRIDAY MORNING...

.LIGHT WINDS AND COLD STABLE AIR WILL PERSIST OVER EASTERN
WASHINGTON AND NORTH IDAHO THROUGH FRIDAY MORNING. PLEASE CONSULT
YOUR REGIONAL AIR QUALITY AGENCIES FOR BURN BANS THAT ARE IN
EFFECT FOR YOUR AREA.

IDZ001>004-WAZ032>038-041-042-044-211915-
/O.CON.KOTX.AS.Y.0002.000000T0000Z-141121T2000Z/
NORTHERN PANHANDLE-COEUR D`ALENE AREA-IDAHO PALOUSE-
CENTRAL PANHANDLE MOUNTAINS-LOWER GARFIELD AND ASOTIN COUNTIES-
WASHINGTON PALOUSE-MOSES LAKE AREA-UPPER COLUMBIA BASIN-
SPOKANE AREA-NORTHEAST MOUNTAINS-OKANOGAN HIGHLANDS-
WENATCHEE AREA-EAST SLOPES NORTHERN CASCADES-WATERVILLE PLATEAU-
1105 AM PST THU NOV 20 2014

...AIR STAGNATION ADVISORY REMAINS IN EFFECT UNTIL NOON PST
FRIDAY...

* AIR QUALITY...LIGHT WINDS AND STABLE CONDITIONS WILL INCREASE
  THE POTENTIAL FOR THE BUILD UP OF POLLUTANTS NEAR THE SURFACE.

* TIMING...CONTINUING THROUGH NOON FRIDAY.

* COUNTIES INCLUDED...BOUNDARY...BONNER...KOOTENAI...BENEWAH...
  SHOSHONE...OKANOGAN...FERRY...STEVENS...PEND OREILLE...
  CHELAN... DOUGLAS...GRANT...LINCOLN...ADAMS... SPOKANE...
  WHITMAN... GARFIELD...AND ASOTIN COUNTIES.

* COMMUNITIES INCLUDED...BONNERS FERRY...SANDPOINT...COEUR
  D`ALENE...KELLOGG...ST MARIES...SPOKANE...COLVILLE...REPUBLIC
   ...GRAND COULEE...MOSES LAKE...WENATCHEE...AND WATERVILLE.

* IMPACTS...PROLONGED PERIODS OF STAGNANT AIR CAN HOLD FINE
  PARTICULATES CLOSE TO THE GROUND AND DEGRADE AIR QUALITY.

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.

&&

$$




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