Non-Precipitation Warnings / Watches / Advisories
Issued by NWS Pendleton, OR

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000
WWUS76 KPDT 151548
NPWPDT

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE PENDLETON OR
748 AM PST SUN JAN 15 2017

...AIR STAGNATION ADVISORY IN EFFECT THROUGH MONDAY AFTERNOON...

.HIGH PRESSURE WILL PREVAIL THROUGH MONDAY...WITH A STRONG
TEMPERATURE INVERSION WHICH WILL TRAP POLLUTANTS NEAR THE
SURFACE. SURFACE WINDS WILL STAY BELOW 10 MPH. AREAS OF FREEZING
FOG WILL ALSO BE POSSIBLE.

ORZ041-044-049-050-505-507-508-510-511-WAZ024-026>029-521-161800-
/O.CON.KPDT.AS.Y.0001.000000T0000Z-170117T0100Z/
EAST COLUMBIA RIVER GORGE OF OREGON-
LOWER COLUMBIA BASIN OF OREGON-GRANDE RONDE VALLEY-WALLOWA COUNTY-
JOHN DAY BASIN-FOOTHILLS OF THE NORTHERN BLUE MOUNTAINS OF OREGON-
FOOTHILLS OF THE SOUTHERN BLUE MOUNTAINS OF OREGON-
NORTH CENTRAL OREGON-CENTRAL OREGON-
EASTERN COLUMBIA RIVER GORGE OF WASHINGTON-KITTITAS VALLEY-
YAKIMA VALLEY-LOWER COLUMBIA BASIN OF WASHINGTON-
FOOTHILLS OF THE BLUE MOUNTAINS OF WASHINGTON-SIMCOE HIGHLANDS-
INCLUDING THE CITIES OF...ARLINGTON...THE DALLES...BOARDMAN...
HERMISTON...IONE...COVE...ELGIN...LA GRANDE...ENTERPRISE...
JOSEPH...WALLOWA...DAYVILLE...JOHN DAY...MITCHELL...MONUMENT...
SPRAY...PENDLETON...PILOT ROCK...HEPPNER...CONDON...FOSSIL...
DUFUR...MAUPIN...BEND...MADRAS...PRINEVILLE...REDMOND...
WHITE SALMON...ELLENSBURG...THORP...NACHES...SUNNYSIDE...
TOPPENISH...YAKIMA...CONNELL...PROSSER...TRI-CITIES...DAYTON...
WAITSBURG...WALLA WALLA...GOLDENDALE...BICKLETON
748 AM PST SUN JAN 15 2017

...AIR STAGNATION ADVISORY REMAINS IN EFFECT UNTIL 5 PM PST
MONDAY...

* AIR QUALITY...MODERATE TO UNHEALTHY FOR SENSITIVE GROUPS.

* WINDS...LESS THAN 10 MPH.

* MIXING HEIGHTS...BELOW 1500 FEET ABOVE GROUND LEVEL.

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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