Grant County, Washington
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The National Weather Service's Watches, Warnings and Advisories by state counties include: Thunderstorm, Tornado, Flood, Flash Flood, Winter Storm, High Wind, Gale, Small Aircraft, High Surf, Marine, Heat, Air Quality, Ashfall, Hazardous, and Special Statements.
Weather Alerts: Grant County, Washington
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Air Stagnation Advisory
WAZ034-035-037-038-041>044-181745-
/O.CON.KOTX.AS.Y.0004.000000T0000Z-141219T2000Z/
MOSES LAKE AREA-UPPER COLUMBIA BASIN-NORTHEAST MOUNTAINS-
OKANOGAN HIGHLANDS-WENATCHEE AREA-EAST SLOPES NORTHERN CASCADES-
OKANOGAN VALLEY-WATERVILLE PLATEAU-
942 AM PST WED DEC 17 2014

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

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

* TIMING...HIGH PRESSURE WILL PERSIST THROUGH FRIDAY MORNING.

* IMPACTS...PROLONGED PERIODS OF STAGNANT AIR CAN LOCK FINE
PARTICULATE MATTER 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.

&&

$$
National Weather Service

Providing "weather, water cycle, and climate forecasts and warnings for the United States, its territories, adjacent waters and ocean areas, for the protection of life and property and the enhancement of the national economy."
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