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Area forecast discussion 
National Weather Service Spokane Washington
817 PM PDT Friday may 22 2015

Synopsis...
the Memorial Day weekend is expected to be warmer than average,
with afternoon temperatures in the 70s and 80s. Look for scattered
showers and thunderstorms this weekend into next week. Some
thunderstorms will be capable of producing heavy downpours and
frequent lightning.



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Discussion...
updated the forecast to decrease pops north and east behind the
line of thunderstorms moving through the Columbia Basin this
evening. Additional update likely later once this line of
thunderstorms moves out of the area and/or diminishes tonight.
/Pelatti

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Aviation...
00z tafs: marjority of thunderstorms on the radar this evening are
moving with a general storm track to the southwest at around 20
mph. With loss of peak heating and limited dynamics to support
forced convection the aviation forecasts show majority of
thunderstorm activity gone from most taf sites after 2z and from
just about everywhere at 9z Saturday. MVFR ceilings primarily from
the rain shafts and the small hail from some of the storms. Wind
shifts common through this evening due to all the outflow
boundaries propagating out of all the thunderstorms. Tafs have no
mention of shower or thunderstorm activity Saturday afternoon as
considerably lesser convective activity is expected. /Pelatti



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Preliminary point temps/pops...
Spokane 53 82 52 80 53 73 / 10 10 10 20 30 50
Coeur D'Alene 52 80 53 80 52 71 / 20 10 10 20 30 50
Pullman 49 76 46 75 48 71 / 20 10 10 10 20 30
Lewiston 56 82 55 82 55 79 / 30 20 20 20 20 30
Colville 53 86 54 81 51 73 / 20 10 10 30 30 70
Sandpoint 50 81 48 79 49 71 / 10 10 10 20 20 60
Kellogg 50 80 49 80 48 70 / 20 20 10 20 20 50
Moses Lake 56 86 55 83 54 80 / 50 10 10 10 20 20
Wenatchee 59 85 59 81 57 79 / 50 10 10 20 20 10
Omak 53 87 53 83 52 77 / 30 10 10 30 20 40

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

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