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Area forecast discussion 
National Weather Service Spokane Washington
955 am PDT Thursday may 28 2015

Synopsis...
scattered afternoon showers and thunderstorms will continue today
and Friday. However they will be more focused around the
mountains. Expect a warming trend into the weekend, with highs in
the 80s, with a lingering threat of mainly mountain showers and
thunderstorms. By next Monday and Tuesday the next best chance of
showers and thunderstorms arrives, with the potential for some
stronger storms and the return of cooler temperatures.

&&

Discussion...
satellite indicates the upper level low pressure which has
generated scattered showers and thunderstorms over the last two
days has now ejected out of the forecast area to the east. A weak
ridge aloft is developing between this exiting system and a
second upper low over coastal British Columbia. This ridging will
assist in suppressing convective activity this afternoon and
evening over the Columbia Basin...but moisture and instability
will still be available to be triggered by orographic
forcing...and in the northern Idaho Panhandle some weak dynamic
energy is forecasted by both the latest NAM and GFS models
associated with a weak embedded wave passing through the northwest
flow. Thus...forecast for this afternoon and evening will not
change appreciably over the forecast inherited from the mid shift.
A generally sunny-partly cloudy day and warming temperatures over
the basin...and another round of scattered mountain showers and a
few afternoon and early evening thunderstorms. /Fugazzi

&&

Aviation...18z tafs: a weak impulse of mid level energy is
producing light showers over the central Panhandle mtns this
morning. Higher heights will stabilize the atmosphere overall
behind this batch of showers. With that said, the boundary layer
remains moist and models show a weak cap over the mountains. Expect
increasing showers with isolated thunderstorms over the higher
terrain surrounding the Columbia Basin this afternoon; however,
this convection is not expected to impact the taf locations. There
will be a weak impulse that moves into the region off of the
Pacific tonight should keep showers going over the northern mtns
overnight./Mjf

&&

Preliminary point temps/pops...
Spokane 79 57 82 59 82 59 / 10 10 10 10 10 10
Coeur D'Alene 78 54 82 57 82 56 / 10 10 10 20 20 10
Pullman 75 52 82 57 80 56 / 20 10 10 20 20 10
Lewiston 83 58 88 64 87 62 / 10 10 10 20 20 20
Colville 82 54 83 55 85 53 / 30 40 40 30 20 20
Sandpoint 78 51 81 52 80 52 / 40 40 30 20 20 20
Kellogg 76 49 81 54 80 53 / 40 40 20 30 30 20
Moses Lake 86 58 90 59 91 58 / 0 10 0 10 10 10
Wenatchee 86 64 89 63 89 62 / 10 10 10 10 10 10
Omak 86 56 87 54 89 53 / 10 20 20 20 10 10

&&

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

$$

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