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Area forecast discussion 
National Weather Service Spokane Washington
1038 am PDT Tuesday Jun 2 2015

Synopsis...

An upper trough lingers across the Pacific northwest through
mid week, with a continuing scattered shower and isolated
thunderstorm threat. The pattern begins to dry out for the end of
the work week and most of the weekend. Temperatures Tuesday and
Wednesday will be relatively cool, then much warmer weather is
expected Friday through the weekend, with high temperatures in the
mid 80s to low 90s.




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Discussion...
a broad upper level trough will continue to track over the inland
northwest today, resulting in scattered to numerous showers in the
unstable air mass. There are a few breaks in the clouds across
the basin and into the Palouse and West Plains. The main focus for
showers this morning remains across the northern and eastern
zones where moisture will rotate around the low. Marginal levels
for convective parameters will keep a chance of thunderstorms in
the forecast this afternoon and evening, especially for those
areas that see some sunshine today. Precipitation amounts will be
much less than we have seen in the past 24 hours as the amount of
moisture has decreased and strong thunderstorms are not indicated.
Low shear values and marginal cape will keep any thunderstorms to
the garden variety. Fortunately the areas of precip will be moving
fast enough to keep any flood threat to a minimum today, unless a
boundary forms which could concentrate convection this afternoon.
/Kelch

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Aviation...
18z tafs: an upper trough lingers in the region and shortwaves
rounding it will produce scattered light precipitation, along
with some breezy conditions this afternoon. There could be some
thunder in the afternoon, but the risk around any taf is too low
to include as a predominant weather. Winds increase through the
day, with some gusts around 20 or 30 mph possible in the
afternoon. The shower threat and winds diminish after 01-05z. In
general VFR conditions are expected, but localized MVFR cigs are
possible around showers, especially near kcoe. Late tonight into
Wednesday morning there will be some lower stratus and perhaps
patchy fog threat, but confidence is only moderate at this time.
/Ek





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Preliminary point temps/pops...
Spokane 66 50 69 50 73 53 / 50 20 20 20 20 20
Coeur D'Alene 64 49 68 48 73 49 / 60 40 30 30 20 20
Pullman 64 45 67 44 71 47 / 80 40 20 20 20 10
Lewiston 71 52 74 52 78 55 / 80 40 30 20 20 10
Colville 66 50 70 48 76 50 / 100 70 40 40 30 20
Sandpoint 63 49 67 47 73 47 / 90 60 60 40 30 30
Kellogg 63 45 67 44 72 46 / 100 50 40 30 20 20
Moses Lake 73 51 75 51 79 54 / 20 20 20 20 10 10
Wenatchee 70 54 73 55 79 59 / 20 20 20 20 10 10
Omak 68 50 71 49 79 51 / 70 50 50 40 30 20

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