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Area forecast discussion 
National Weather Service Spokane Washington
1025 am PDT Thursday Sep 18 2014

Synopsis...
a weak cold front will move through Washington and Idaho today.
The front will push temperatures closer to normal and bring the
potential for widely scattered showers. A strong high pressure
ridge will return Friday and promote warm and dry weather through
the weekend. High temperatures Sunday should be ten degrees above
normal. The breakdown of this ridge...and a return to cooler
conditions...will begin Monday. However...precipitation is not
expected until late Tuesday or Wednesday for most towns.



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Discussion...
rest of today...a weak cold front is crossing the region this
morning and regional radar and satellite suggest showers are
present with this system but not by any means widespread or heavy.
Just about anywhere in the region is subject to a brief sprinkle
in this moist air mass...but most of the actual shower activity
will be over the northeast and northern Idaho Panhandle. Moderate
instability due to cooling aloft and enhanced lift due to
orographics will bring a small chance of a brief thunderstorm
salted among the scattered showers over northeast Washington and
north Idaho. Otherwise breezy conditions will develop across the
basin today behind the cold front. Temperatures will be more
influenced by cloud cover than by any significant air mass
change...with high temps lower than yesterday but still above
average for this time of year. Minor update to forecast products
imminent to add the Prospect for sprinkles to the basin. /Fugazzi

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Aviation...
18z tafs: a moist southwest flow and incoming cold front/upper
trough impact the inland NW, providing increased cloud cover and
the threat of a few showers. The best shower chances will be near
the Cascades, including keat, and over the northeast mountains
today. Showers will also develop in the vicinity of kgeg to kcoe
in the afternoon with the passing front. There is also a slight
risk for -tsra to develop across the mountains of far eastern Washington
and north Idaho from about 21z-03z. Expect increased winds this
afternoon, with gusts in the 20 to 25kt range, locally higher near
keat. Winds will gradually abate after 02-04z Friday. /Mjf





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Preliminary point temps/pops...
Spokane 80 55 76 48 81 52 / 30 10 0 0 0 0
Coeur D'Alene 79 54 76 46 80 49 / 30 20 10 0 0 0
Pullman 81 53 76 45 81 49 / 20 10 0 0 0 0
Lewiston 86 60 82 53 86 55 / 20 10 0 0 0 0
Colville 83 52 80 45 84 47 / 40 20 10 0 0 0
Sandpoint 75 47 74 39 78 44 / 40 30 10 10 0 0
Kellogg 77 53 73 46 78 46 / 30 20 10 0 0 0
Moses Lake 85 57 84 49 85 53 / 10 0 0 0 0 0
Wenatchee 82 61 83 54 84 55 / 20 10 0 0 0 0
Omak 82 55 82 48 85 49 / 30 10 0 0 0 0

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