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fxus66 kotx 281759 
afdotx

Area forecast discussion
National Weather Service Spokane Washington
959 am PST Tue Feb 28 2017

Synopsis...
snow showers will linger over the Idaho Panhandle through the day.
The most significant accumulations will come to an end by mid
morning. The remainder of the week into the weekend will remain
active with the mountains receiving several rounds of snow.
Wednesday and Friday have the potential to be windy with gusts up
to 40 mph over the open country of central and eastern Washington.



&&

Discussion...
morning update: the low pressure system responsible for the wide
range in snowfall across eastern Washington and north Idaho over
the past 24 hours has moved east into Montana. On the back side of
this low drier air is moving into the region with mostly clear to
partly cloudy skies expected for the rest of today for central and
eastern Washington. Residual low level moisture and weak
instability will continue to trigger scattered snow showers over
portions of southeast Washington into the Idaho Panhandle with the main
focus over the Blue Mountains, Camas Prairie, and central
Panhandle mountains. With the increasing late February sun
angle...Road temperatures will be climbing above freezing and thus
additional accumulations today will be spotty and localized. Thus
will let the current round of winter weather advisories and
warnings expire at 10 am. Jw



&&

Aviation...
18z tafs: improving conditions are expected for all of our taf
sites today as dry air overspreads the inland northwest behind
our departing storm system. Snow showers in the Pullman and
Lewiston areas are expected to dissipate this morning with the
arrival of drier air, but some widely scattered snow showers may
redevelop this afternoon courtesy of low to mid level afternoon
destabilization. Another system will spread moisture into the
region late tonight. The strong west northwest jet will produce a
pronounce precipitation shadow over central Washington, but the
Cascades and Panhandle mountains will receive more precipitation.
Low level wind shear is expected for keat/kmwh as strong west-
southwest winds develop above the surface. For
kgeg/ksff/kcoe/kpuw/klws the winds are expected to surface and
become gusty by Wednesday morning. Jw

&&

Preliminary point temps/pops...
Spokane 32 28 44 29 41 32 / 10 30 10 20 70 40
Coeur D'Alene 33 26 41 28 41 31 / 10 60 50 50 60 70
Pullman 33 29 44 32 43 34 / 20 30 30 20 30 60
Lewiston 40 32 52 34 49 35 / 10 10 20 10 10 50
Colville 35 22 43 27 44 31 / 0 50 20 40 60 60
Sandpoint 33 24 41 28 41 31 / 10 100 80 60 70 80
Kellogg 31 24 38 29 39 31 / 60 100 100 80 70 90
Moses Lake 38 29 51 27 45 32 / 0 10 10 10 20 10
Wenatchee 35 28 50 28 42 31 / 0 10 10 10 20 20
Omak 33 23 47 25 41 30 / 0 20 10 10 30 20

&&

Otx watches/warnings/advisories...
Idaho...Winter Weather Advisory until 10 am PST this morning for Lewis
and southern Nez Perce counties.

Winter Storm Warning until 10 am PST this morning for central
Panhandle mountains.

Washington...Winter Weather Advisory until 10 am PST this morning for

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