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Area forecast discussion 
National Weather Service Spokane Washington
702 PM PST Monday Mar 2 2015

Synopsis...
a weather system will pass through this evening, with potential
for scattered snow showers along with breezy conditions across
much of the region. The snow shower threat and winds abate
overnight into Tuesday. Much colder air moves in behind this
system, with temperatures well below average for the middle of the
week. A dry period, with moderating temperature will follow for
the end of the week.



&&

Discussion...
updates to zones and grids to better address the localized snow
accumulations associated with the convective showers moving south
at about 25 mph through eastern Washington and parts of north
Idaho right now. They are all associated with peak heating of the
evening and a shortwave dropping down through the area which is
quite visible as a small localized area of rotation on the water
vapor channel. Some webcams and spotters have noted they have
received up to two inches of snow under the more heavier snow
showers and/or have been hit with more than one snow shower this
evening. Zones have better wording to address this and note that
the trend is for all the convective snow showers to decrease
overnight. Potential additional impacts brought about by this snow
would be refreezing of any lingering snowmelt on roadways tonight
which could result in slick conditions later on tonight and into
Tuesday morning. /Pelatti



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Aviation...
00z tafs: a shortwave will drop south across the East Washington/north Idaho
between 00-06z, with scattered snow showers. With unstable lapses
accompanying these some of these could be locally heavy, producing
brief reductions to MVFR conditions, especially around
geg/sff/Coe. They will be more isolated toward puw/lws. The threat
will wane after 03-04z over most locations, but could some
potential may linger through 08z. Eat/mwh will mainly dry, with
only the off chance of a flurry. Otherwise look for VFR conditions
here. Expect breezy conditions around 15 to 25kts, with gusts to
30 around mwh. Other breezy conditions are expected at eat, as
well as geg to Coe with the incoming shortwave. However speeds
will be a bit less, at 10 to 20kts. Speeds in general will abate
after 08-11z. /J. Cote'




&&

Preliminary point temps/pops...
Spokane 18 37 17 43 23 48 / 50 0 0 0 0 0
Coeur D'Alene 16 37 14 43 21 49 / 50 0 0 0 0 0
Pullman 18 37 17 43 26 51 / 50 0 0 0 0 0
Lewiston 26 40 20 47 27 54 / 30 10 0 0 0 0
Colville 21 41 16 45 22 50 / 50 0 0 0 0 0
Sandpoint 17 34 12 41 21 44 / 50 0 0 0 0 0
Kellogg 17 32 13 40 22 45 / 70 0 0 0 0 0
Moses Lake 22 44 20 48 26 53 / 10 0 0 0 0 0
Wenatchee 27 45 20 50 29 54 / 0 0 0 0 0 0
Omak 22 45 19 47 24 52 / 0 0 0 0 0 0

&&

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

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