000
FXUS66 KOTX 300544 AAB
AFDOTX
AREA FORECAST DISCUSSION...UPDATED
NATIONAL WEATHER SERVICE SPOKANE WA
1044 PM PDT FRI AUG 29 2008
...UPDATED AVIATION...
.SYNOPSIS...
COLDER AIR WILL ADVANCE INTO THE AREA THROUGH THE WEEKEND...WITH
SHOWERS AGAIN RETURNING TO MAINLY MOUNTAIN LOCATIONS. RATHER DRY
CONDITIONS FOR THE VALLEYS WILL PREVAIL THROUGH NEXT WEEK...WITH
TEMPERATURES REMAINING MAINLY BELOW AVERAGE.
&&
.PREV DISCUSSION... /ISSUED 908 PM PDT FRI AUG 29 2008/
THE MAIN UPDATES TO THE FCST FOR THE REST OF THE NIGHT INCLUDED
SCALING BACK SIGNIFICANTLY THE PCPN CHANCES NEAR THE CANADIAN
BORDER...AND MODIFYING WINDS AND SKY COVER. WITH THE COLD FRONT
WELL INTO ERN WA ATTM...CAA AND THE BEST POTENTIAL FOR GUSTY WEST
WINDS HAS NOW PEAKED NEAR THE LEE SLOPES OF THE CASCADES AND UPPER
COLUMBIA BASIN. FCST SOUNDINGS WHICH SHOW 30-35KT WEST WINDS
THROUGH A DEEP PART OF THE LOWER TROP ALSO SHOW A STEADY DECREASE
IN THESE WINDS...AS WELL AS SLIGHT DECOUPLING...THE REST OF THE NT
AS THE COLD FRONT TRACKS FARTHER EAST. WE`VE HANDLED VERY GUSTY
WINDS REPORTED BY SPOTTERS BETWEEN REPUBLIC AND MALO WITH NOWCASTS
EARLIER THIS EVENING...AND DON`T ANTICIPATE HAVING TO REISSUE THIS
NOWCAST. WITH THE CHANCE OF ANY SFC-BASED SHOWERS ESSENTIALLY GONE
THE REST OF THE NIGHT... THERE STILL REMAINS A REMOTE CHANCE OF
GENERATING SOME ELEVATED PCPN MORE TIED TO LG- SCALE LIFT AND
SHALLOW LAYER INSTABILITY ALOFT AS THE MID-LEVEL TROF AXIS MOVES
INTO THE REGION. THE HIGHEST THREAT ZONES WOULD BE OVER FAR NE WA/
N ID AND FROM NE OREGON INTO SERN WA AND THE CNTRL ID PANHANDLE.
WE`VE ONLY KEPT ISOLATED AREAL COVERAGE OF PCPN FOR THESE TWO
REGIONS THE REST OF THE NIGHT GIVEN THE DRYNESS OF THE AIR- MASS.
BZ
&&
.AVIATION...
THE ONLY MAJOR CHANGE TO THE FCST WAS TO ADD A MENTION SHOWERS FROM
KLWS NORTH TO KPUW. ISOLD TSRA STILL POSSIBLE THESE TAF AS WELL
THROUGH 10Z SAT. VFR WX STILL LOOKS GOOD ALL TAFS THROUGH AT LEAST
06Z SUNDAY. GUSTY WEST WINDS FROM KMWH TO KEAT TO DECREASE THE
REST OF THE NIGHT. BZ
&&
.PRELIMINARY POINT TEMPS/POPS...
SPOKANE 53 70 47 67 46 70 / 0 10 10 10 10 0
COEUR D`ALENE 52 70 45 65 45 69 / 10 10 10 20 20 20
PULLMAN 51 70 43 65 43 69 / 20 10 10 10 20 20
LEWISTON 61 77 51 71 51 74 / 20 10 10 10 20 30
COLVILLE 47 72 41 69 44 74 / 10 10 0 10 20 0
SANDPOINT 47 68 39 64 44 69 / 20 10 10 20 20 20
KELLOGG 55 67 44 61 44 67 / 20 20 10 20 30 30
MOSES LAKE 54 76 48 74 50 76 / 0 0 0 10 10 0
WENATCHEE 55 73 52 72 52 77 / 0 0 0 10 10 0
OMAK 51 75 45 74 48 77 / 0 0 0 10 10 0
&&
.OTX WATCHES/WARNINGS/ADVISORIES...
ID...NONE.
WA...NONE.
&&
$$
