FXUS66 KOTX 251750
AFDOTX

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE SPOKANE WA
950 AM PST FRI DEC 25 2009

.SYNOPSIS...
STRONG HIGH PRESSURE WILL CONTINUE TO BUILD OVER THE PACIFIC
NORTHWEST. THIS RIDGE WILL PERSIST THROUGH NEXT WEEK...RESULTING
IN LITTLE IF ANY CHANCE OF MEASURABLE PRECIPITATION. IT WILL ALSO
BRING INCREASING CHANCES FOR FOG AND LOW CLOUDS IN THE
VALLEYS...ESPECIALLY BY EARLY NEXT WEEK. 

&&

.DISCUSSION...MINIMAL UPDATE NECESSARY...PRIMARILY SKY GRID FOR
THE MOST PART. RIDGE REMAINS IN PLACE AND THE LIGHT NEAR SURFACE
FLOW FROM THE NORTHEAST WILL CONTINUE TO POOL THE AIRMASS AT THAT
LOWER LEVEL TO THE BASE OF THE EAST SLOPES OF THE CASCADES AS
EVIDENT FROM THE VISIBLE SATELLITE IMAGERY THIS MORNING SHOW A
CONSIDERABLE AMOUNT OF LOW LEVEL STRATUS RESIDING THERE. AREAS
FURTHER TO THE EAST AND NORTH WILL REMAIN UNDER SKY COVER OF A
CONSIDERABLY LESSER AMOUNT. AIR STAGNATION ADVISORY REMAINS IN
EFFECT TO SATURDAY AND COULD VERY WELL BE EXTENDED ON INTO SUNDAY
AND POSSIBLY MONDAY...HOWEVER THAT WILL MOST LIKELY BE DECIDED ON
TOMORROW. /PELATTI

&&

.AVIATION...
POOLED STRATUS NEAR THE BASE OF THE EAST SLOPES OF THE CASCADES
WILL KEEP SOME MVFR CEILINGS PRIMARILY AT KMWH AND KEAT. LOCATIONS
TO THE EAST AN NORTH WILL HAVE CONSIDERABLY LESSER INFLUENCE FROM
STRATUS IF AT ALL. SOME SHALLOW FOG MAY OCCUR FROM 8Z-18Z UP IN
THE SHELTERED NORTHERN VALLEYS OTHERWISE VFR WOULD BE THE NORM FOR
REMAINING LOCATIONS. /PELATTI

&&

.PRELIMINARY POINT TEMPS/POPS...
SPOKANE        26  14  28  17  26  18 /   0   0   0   0   0   0 
COEUR D'ALENE  27  15  29  19  27  20 /   0   0   0   0   0   0 
PULLMAN        30  19  31  20  29  20 /   0   0   0   0   0   0 
LEWISTON       34  22  33  22  31  22 /   0   0   0   0   0   0 
COLVILLE       28  17  25  15  26  18 /   0   0   0   0   0   0 
SANDPOINT      27  14  28  18  26  18 /   0   0   0   0   0   0 
KELLOGG        26  17  26  14  27  20 /   0   0   0   0   0   0 
MOSES LAKE     30  17  28  18  28  18 /   0   0   0   0   0   0 
WENATCHEE      28  19  26  21  28  20 /   0   0   0   0   0   0 
OMAK           25  15  25  13  25  15 /   0   0   0   0   0   0 

&&

.OTX WATCHES/WARNINGS/ADVISORIES...
ID...AIR STAGNATION ADVISORY UNTIL 4 PM PST SATURDAY FOR CENTRAL 
     PANHANDLE MOUNTAINS...COEUR D'ALENE AREA...IDAHO PALOUSE...
     LEWIS AND SOUTHERN NEZ PERCE COUNTIES...LEWISTON AREA...
     NORTHERN PANHANDLE.

WA...AIR STAGNATION ADVISORY UNTIL 4 PM PST SATURDAY FOR EAST SLOPES 
     NORTHERN CASCADES...LOWER GARFIELD AND ASOTIN COUNTIES...
     MOSES LAKE AREA...NORTHEAST MOUNTAINS...OKANOGAN 
     HIGHLANDS...OKANOGAN VALLEY...SPOKANE AREA...UPPER COLUMBIA 
     BASIN...WASHINGTON PALOUSE...WATERVILLE PLATEAU...WENATCHEE 
     AREA.

&&

$$