Weather

904 
fxus66 kotx 280440 aaa 
afdotx 


Area forecast discussion...updated 
National Weather Service Spokane Washington 
940 PM PDT Wednesday Aug 27 2008 




Synopsis... 
though not as windy as Wednesday afternoon...expect winds to be 
gusty once again Thursday. Another chance of rain will be in the 
forecast Thursday...mainly near the British Columbia border...as the storm 
track remains to the north over southern British Columbia. The warmest day will 
be Friday before a cold front moves across the region Friday night 
and Ushers in cooler and windy weather Saturday. 


&& 


Discussion... 
the main update to the forecast was to decrease winds region-wide and 
end the threat of precipitation for all but the hi mountains along the 
Bitterroot crest and the north Cascades. A much more stable air 
mass is now working its way across the region as shallow 
instability in the afternoon and early evening over north Idaho is 
now all but gone as the jet axis continues to move slowly north 
and the surface cools. Inbound warmfnt approaching northwest Washington at this time should 
begin to spread middle cloud ceilings east across eastern Washington overnight 
as the low-level flow continues to back to southerly and lg- scale 
ascent steadily increases along and north of the frontal boundary. 
Given the significant westerly component to the flow and the fairly dry 
air mass below 700mb...the only zones we'll have any mention of 
precipitation the rest of the nt will be along the Cascades crest and along 
the British Columbia border for the higher mountains late. Bz 


&& 


Aviation... 
the next middle-level wave passes overnight and Thursday...the brunt 
of which remains north of the Canadian border. This comes with a 
renewal in clouds (mainly middle/upper) toward 12z Thursday and 
increased wind gusts (near 20kts) toward mid-Thursday. A slight 
risk for showers will be held to the Cascades and northern 
mountains./Jcote/bz 


&& 


Preliminary point temps/pops... 
Spokane 48 74 53 81 56 74 / 0 0 0 0 0 10 
Coeur D'Alene 47 72 51 80 54 75 / 10 0 0 0 10 10 
Pullman 46 76 50 83 53 75 / 0 0 0 0 0 10 
Lewiston 54 83 59 90 62 82 / 0 0 0 0 0 0 
Colville 44 75 47 81 50 77 / 10 10 10 10 10 10 
Sandpoint 42 69 46 76 50 74 / 20 10 10 10 10 10 
Kellogg 43 69 52 80 54 72 / 20 10 0 0 10 10 
Moses Lake 50 81 54 87 56 80 / 0 0 0 0 0 0 
Wenatchee 54 81 60 86 60 77 / 0 0 0 0 0 10 
Omak 49 78 52 86 55 78 / 10 10 10 10 10 10 


&& 


Otx watches/warnings/advisories... 
Idaho...none. 
Washington...none. 
&& 


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