FXUS66 KOTX 280044 AAA
AFDOTX
AREA FORECAST DISCUSSION...UPDATED
NATIONAL WEATHER SERVICE SPOKANE WA
444 PM PST FRI NOV 27 2009
.SYNOPSIS...
WEAK HIGH PRESSURE WILL BRING MAINLY DRY CONDITIONS TO THE INLAND
NORTHWEST TONIGHT THAT WILL ACCOMPANY AN INCREASING FOG THREAT. THE
FOG WILL BE DENSE AROUND THE LEWISTON AREA EARLY THIS EVENING. FOLLOWING
THE PASSAGE OF A FRONTAL BOUNDARY THAT WILL PRODUCE SOME LIGHT
MOUNTAIN SNOWS FOR NORTH IDAHO AND NORTHEAST WASHINGTON THIS
WEEKEND...A WEAK FRONTAL SYSTEM MAY BRING SOME LIGHT PRECIPITATION
TO THE REGION MONDAY NIGHT INTO TUESDAY. THE REMAINDER OF THE WEEK
SHOULD BE CHILLY...BUT DRY.
&&
.DISCUSSION...
WE'VE MADE UPDATES TO THE FCST FOR THIS EVENING AND TONIGHT THAT
INCLUDED ENDING THE DENSE FOG ADVSY FOR THE CAMAS PRAIRIE AND
LEWISTON REGION...DECREASING THE FOG THREAT SUBSTANTIALLY FOR ALL
BUT THE PALOUSE AND LEWISTON AREA...AND COOLING LOW TEMPS
OVERNIGHT. THE RATHER DRY AIRMASS THAT HAS MOVED INTO THE AREA
BEHIND THIS MORNINGS COLDFNT HAS ALLOWED US TO DECREASE THE FOG
POTENTIAL WELL INTO SAT AS WELL. BZ
&&
.AVIATION...
DRY...NORTHERLY FLOW CONTINUES TO ERODE IFR CIGS FROM THE
KPUW-KLWS CORRIDOR THIS AFTN WITH ALL TERMINALS BCMG VFR
WITHIN THE NEXT HOUR OR SO. AS GRADIENTS RELAX
OVERNIGHT...TEMPERATURES WILL QUICKLY RADIATE RESULTING
IN AREAS OF SHALLOW FG THROUGH THE VALLEYS OF IDAHO
AND EXTREME EASTERN WA WITH GENERALLY SKC SKIES ABV. LOOK
FOR SHALLOW FG TO BURN AWAY AFT 18Z WITH VFR CONDITIONS FOR
ALL TERMINALS. /SB
&&
.PRELIMINARY POINT TEMPS/POPS...
SPOKANE 23 36 28 38 33 44 / 10 10 0 0 0 0
COEUR D'ALENE 25 37 29 39 33 44 / 10 20 10 10 0 0
PULLMAN 27 37 28 43 33 45 / 10 10 0 0 0 0
LEWISTON 33 44 30 47 34 50 / 10 10 0 0 0 0
COLVILLE 24 38 31 39 34 40 / 0 20 10 10 10 10
SANDPOINT 23 35 29 35 33 39 / 10 30 20 20 10 10
KELLOGG 26 34 28 36 32 42 / 20 30 30 20 10 10
MOSES LAKE 22 42 28 43 34 45 / 0 0 0 0 0 0
WENATCHEE 29 44 33 46 35 46 / 0 0 0 0 0 0
OMAK 20 42 29 41 34 43 / 0 10 0 0 0 10
&&
.OTX WATCHES/WARNINGS/ADVISORIES...
ID...NONE.
WA...NONE.
&&
$$
