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One product issued by NWS for: Grand Coulee WA

Air Stagnation Advisory

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE SPOKANE WA
146 PM PST TUE FEB 9 2016

WAZ034-035-037-038-041>044-102200-
/O.CON.KOTX.AS.Y.0001.000000T0000Z-160213T1800Z/
MOSES LAKE AREA-UPPER COLUMBIA BASIN-NORTHEAST MOUNTAINS-
OKANOGAN HIGHLANDS-WENATCHEE AREA-EAST SLOPES NORTHERN CASCADES-
OKANOGAN VALLEY-WATERVILLE PLATEAU-
146 PM PST TUE FEB 9 2016

...AIR STAGNATION ADVISORY REMAINS IN EFFECT UNTIL 10 AM PST
SATURDAY...

* AIR QUALITY...LIGHT EAST WINDS AND A TEMPERATURE INVERSION
  WILL HEIGHTEN THE POTENTIAL FOR ELEVATED POLLUTION LEVELS IN
  CENTRAL WASHINGTON AND NORTHEAST WASHINGTON TONIGHT THROUGH
  SATURDAY MORNING. WEAK WEATHER DISTURBANCES WILL PASS THROUGH
  THE AREA STARTING WEDNESDAY NIGHT AND MAY SLIGHTLY IMPROVE THE
  SITUATION... HOWEVER A STRONGER COLD FRONT PASSAGE SATURDAY IS
  EXPECTED TO END THE STAGNANT CONDITIONS WHICH IS WHY THE AIR
  STAGNATION ADVISORY IS IN EFFECT UNTIL 10 AM PST SATURDAY.

* IMPACTS...BURN BANS MAY BE IN EFFECT FOR YOUR AREA. PLEASE
  CONSULT YOUR STATE OR TRIBAL AUTHORITIES BEFORE BURNING.

* LOCATIONS...A FEW COMMUNITIES INCLUDED IN THE AIR STAGNATION
  ADVISORY ARE...RITZVILLE...MOSES LAKE...GRAND COULEE...
  COLVILLE...OMAK...WINTHROP... WENATCHEE...AND LEAVENWORTH.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

AN AIR STAGNATION ADVISORY INDICATES THAT DUE TO LIMITED MOVEMENT
OF AN AIRMASS 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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