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fxus66 kotx 221808 
afdotx 


Area forecast discussion 
National Weather Service Spokane Washington 
1108 am PDT Thursday may 22 2008 


Synopsis... 
an upper low will remain over the Pacific northwest into the 
weekend. A series of weather disturbances moving through this upper 
low will result in a cool and wet weather pattern. While cooler 
temperatures will produce less mountain snow melt...expect periods 
of light precipitation into early next week. 




&& 


Discussion... 
rest of today...in the near-term the areas of fog and stratus 
across valleys of the northeastern County Warning Area are eroding and 
visibilities are improving. RUC soundings support the inversions 
mixing out by midday. But skies will not clear out completely 
here. A broad low will remain centered across the Great 
Basin...retrograding slightly southwest as a jet streak curves 
around its southwest side. This puts the inland northwest in an 
increasingly easterly flow. A disturbance pivoting around the 
northeast side of the low will advance toward the region. This 
will lead to a general increase in middle/upper clouds from the east 
and...with some lower/mid-level instability...some cumulus and scattered 
-shra development through the afternoon. Minor adjustments made to 
expand the shower risk slightly into the basin and increase 
afternoon clouds. Winds were also adjusted...indicating somewhat 
stronger winds coming through the Okanogan Valley. Lastly...a few 
tweak were made to temperatures...but in general highs are 
expected to be similar to the highs on Wednesday. /Jcote 


&& 


Aviation... 
predominantly VFR conditions expected through 18z Friday. 
Morning clouds/patchy fog will give way to a middle and upper level 
deck of clouds...with a risk for scattered -shra developing this 
afternoon. Isolated MVFR ceilings are possible in showers. The risk will 
wane after sunset. Another risk for precipitation will develop from the 
east-southeast overnight into Friday afternoon...once again 
thickening the cloud decks. /Jcote 




&& 


Preliminary point temps/pops... 
Spokane 61 46 63 46 66 47 / 20 30 50 30 50 30 
Coeur D'Alene 58 46 62 45 66 45 / 30 40 50 30 60 30 
Pullman 57 43 62 43 64 45 / 40 50 50 30 40 10 
Lewiston 63 48 65 50 69 50 / 30 50 50 30 30 10 
Colville 64 47 64 44 70 47 / 20 20 50 30 60 30 
Sandpoint 54 44 62 44 65 46 / 30 50 50 30 60 40 
Kellogg 49 43 57 42 62 43 / 50 70 50 40 60 30 
Moses Lake 71 52 71 49 67 50 / 10 10 30 20 20 10 
Wenatchee 70 53 70 51 68 52 / 10 10 30 20 20 20 
Omak 70 51 70 49 72 49 / 10 10 30 20 30 20 


&& 


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


$$