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Air Stagnation Advisory


URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE SPOKANE WA
952 AM PST FRI FEB 12 2016


WAZ034-035-037-038-041-044-131800-
/O.CON.KOTX.AS.Y.0001.000000T0000Z-160213T1800Z/
MOSES LAKE AREA-UPPER COLUMBIA BASIN-NORTHEAST MOUNTAINS-
OKANOGAN HIGHLANDS-WENATCHEE AREA-WATERVILLE PLATEAU-
952 AM PST FRI FEB 12 2016

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

* AIR QUALITY...LIGHT WINDS AND TEMPERATURE INVERSIONS WILL
  HEIGHTEN THE POTENTIAL FOR ELEVATED POLLUTION LEVELS IN
  CENTRAL AND NORTHEAST WASHINGTON THROUGH SATURDAY MORNING.
  WEAK WEATHER DISTURBANCES WILL PASS THROUGH THE AREA THURSDAY
  NIGHT AND MAY SLIGHTLY IMPROVE THE SITUATION. A STRONGER COLD
  FRONT PASSAGE LATE FRIDAY INTO SATURDAY IS EXPECTED TO END THE
  STAGNANT CONDITIONS.

* 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
   ...AND WENATCHEE.

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.

&&

$$

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE SPOKANE WA
952 AM PST FRI FEB 12 2016


WAZ042-043-131800-
/O.CON.KOTX.AS.Y.0001.000000T0000Z-160216T1800Z/
EAST SLOPES NORTHERN CASCADES-OKANOGAN VALLEY-
952 AM PST FRI FEB 12 2016

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

* AIR QUALITY...LIGHT WINDS AND TEMPERATURE INVERSIONS WILL
  HEIGHTEN THE POTENTIAL FOR ELEVATED POLLUTION LEVELS IN
  CENTRAL WASHINGTON WASHINGTON THROUGH TUESDAY. WEAK WEATHER
  DISTURBANCES WILL PASS THROUGH THURSDAY NIGHT...WITH A
  STRONGER COLD FRONT PASSAGE LATE FRIDAY INTO SATURDAY. HOWEVER
  VALLEYS NEAR THE CASCADES MAY NOT RECEIVE THE FULL BENEFIT OF
  THAT FRONT. SOME IMPROVEMENT IS POSSIBLE BUT IT IS EXPECTED TO
  BE SHORT-LIVED BEFORE MORE STAGNANT CONDITIONS WORK BACK IN.
  THUS THE ADVISORY IS EXTENDED THROUGH TUESDAY MORNING.

* 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 OMAK...WINTHROP...MAZAMA...AND LEAVENWORTH.

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.

&&

$$

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE PENDLETON OR
947 AM PST FRI FEB 12 2016

...STAGNANT CONDITIONS TO CONTINUE INTO SATURDAY MORNING...

.WEAKENING SHALLOW INVERSIONS WILL CONTINUE TO TRAP POLLUTANTS AT
OR NEAR THE SURFACE AND IN SOME MOUNTAIN VALLEYS. THIS WILL LEAD
TO CONTINUED AIR QUALITY ISSUES.

ORZ041-044-050-505-507-508-510-WAZ024-026>029-520-521-131800-
/O.CON.KPDT.AS.Y.0004.000000T0000Z-160213T1800Z/
EASTERN COLUMBIA RIVER GORGE OF OREGON-
LOWER COLUMBIA BASIN OF OREGON-WALLOWA COUNTY-JOHN DAY BASIN-
FOOTHILLS OF THE NORTHERN BLUE MOUNTAINS OF OREGON-
FOOTHILLS OF THE SOUTHERN BLUE MOUNTAINS OF OREGON-
NORTH CENTRAL OREGON-EASTERN COLUMBIA RIVER GORGE OF WASHINGTON-
KITTITAS VALLEY-YAKIMA VALLEY-LOWER COLUMBIA BASIN OF WASHINGTON-
FOOTHILLS OF THE BLUE MOUNTAINS OF WASHINGTON-
EAST SLOPES OF THE WASHINGTON CASCADES-SIMCOE HIGHLANDS-
INCLUDING THE CITIES OF...ARLINGTON...THE DALLES...BOARDMAN...
HERMISTON...IONE...ENTERPRISE...JOSEPH...WALLOWA...DAYVILLE...
JOHN DAY...MITCHELL...MONUMENT...SPRAY...PENDLETON...PILOT ROCK...
HEPPNER...CONDON...FOSSIL...DUFUR...MAUPIN...WHITE SALMON...
ELLENSBURG...THORP...NACHES...SUNNYSIDE...TOPPENISH...YAKIMA...
CONNELL...PROSSER...TRI-CITIES...DAYTON...WAITSBURG...
WALLA WALLA...APPLETON...CLE ELUM...CLIFFDELL...GOLDENDALE...
BICKLETON
947 AM PST FRI FEB 12 2016

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

* AIR QUALITY...DIMINISHED AIR QUALITY WILL BE POSSIBLE INTO
  SATURDAY MORNING AS TEMPERATURE INVERSIONS COMBINE WITH LIGHT
  WINDS TO TRAP POLLUTANTS NEAR THE SURFACE. SOME LOCATIONS MAY
  BEGIN TO SEE AIR QUALITY IMPROVEMENTS LATE TONIGHT AS WINDS
  INCREASE.

* TIMING...THROUGH SATURDAY MORNING.

* IMPACTS...THOSE WITH RESPIRATORY ISSUES SHOULD LIMIT THEIR
  TIME OUTSIDE AND OR DOING PHYSICAL ACTIVITIES.

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

DURING PERIODS OF STAGNANT AIR...STATE AIR QUALITY AGENCIES
HIGHLY RECOMMEND THAT NO OUTDOOR BURNING OCCUR AND THAT
RESIDENTIAL WOOD BURNING DEVICES BE LIMITED AS MUCH AS POSSIBLE.
ACCORDING TO STATE AIR QUALITY AGENCIES...PROLONGED PERIODS OF
STAGNANT AIR CAN HOLD POLLUTANTS CLOSE TO THE GROUND...WHERE
PEOPLE LIVE AND BREATHE. CHECK WITH YOUR LOCAL BURN AGENCY FOR
ANY CURRENT RESTRICTIONS IN YOUR AREA

&&

$$

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Page last modified: June 2, 2009
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