Weather Service Report

FXUS66 KOTX 241841

Area Forecast Discussion
National Weather Service Spokane WA
1041 AM PST TUE NOV 24 2015

Light snow, with pockets of rain, will turn to scattered showers
this afternoon, before gradually decreasing this evening and
tonight with increasing winds. The area is expected be dry Wednesday,
with locally breezy to windy conditions. Thanksgiving through
next weekend looks dry, with lighter winds. Temperatures remain on
the cool side.


Morning update: satellite shows a well-wound area of low pressure
pin-wheeling down the Pacific Northwest coast. The deformation
axis/trowal feature is producing a swath of precipitation across
eastern WA and north ID, with spottier showers across the central
WA basin. For the most part this is falling as snow. Yet across
the Palouse into the L-C Valley temperatures are in the mid-30s
with dewpoints around freezing. So rain is falling here. However
this will have opportunity to mix with or change to snow as the
day continues to progress.

As for how the precipitation shield is projected to continue to
evolve this afternoon, there relatively decent agreement amongst
short-range and hi-resolution models. Light precipitation is
expected to continue through the remainder of the morning across
from the lower Columbia Basin, east into the Palouse/L-C Valley
and central Panhandle, and north across the Spokane/C'dA area into
the northern mountains. The precipitation then is expected to turn
more showery from the north as the afternoon progresses. Toward 
4 PM or so model still show a few returns around the Spokane/C'dA
area west into the Columbia Basin, but they are not expected to
amount to much and generally break up between 4 PM and 7 PM. The
showers are expected to continue across the Palouse and central
Panhandle southward through the evening. 

Overall the winter weather advisories seem to be on track. The
advisory for the Moses Lake/Upper Columbia Basin zone were allowed
to expire, at the precipitation is expected to be more hit-and-
miss or widely scattered and any additional snow/ice amounts are
expected to be light, especially with the increasing northerly

Winds have been increasing across the Okanogan Valley this
morning and are now starting to break across the Waterville
Plateau south. They are also starting to increase a bit toward
Bonners Ferry, near the north side of the Purcell Trench. Winds
are expected to generally continue to increase, especially later 
this afternoon as the precipitation is winding down. /J. Cote'


18Z TAFS: Low pressure will push into Oregon this afternoon. This
will send up moisture from the south while an Arctic front pushes
down from the north. Expect light snow to continue through about
00Z this afternoon at KGEG, KSFF and KCOE. Much of this snow will
be very fine and result in light or little accumulation, especially
in the afternoon. Northerly winds will strengthen through today
and into tonight down the Okanogan Vly and through the Purcell
Trench with gusts to around 30 mph expected. A brief period of
light snow will be possible at KPUW and KLWS this evening as the
thermal profiles cool with the northerly winds. Cigs and vis will
steadily improve through the day and into tonight from north to
south. /SVH


Spokane        35  22  30  15  29  14 /  70  20   0   0   0   0 
Coeur d'Alene  35  18  28  15  30  13 /  80  30   0   0   0   0 
Pullman        39  24  30  16  29  15 /  60  50  10   0   0   0 
Lewiston       40  26  33  18  32  16 /  60  60  10   0   0   0 
Colville       37  18  31  13  33  11 /  50  10   0   0   0   0 
Sandpoint      34  16  27  15  29  13 /  80  20   0   0   0   0 
Kellogg        35  16  25  12  27  11 /  80  40  10   0   0   0 
Moses Lake     36  26  36  15  32  17 /  30  30   0   0   0   0 
Wenatchee      38  22  34  20  34  18 /  30  10   0   0   0   0 
Omak           37  18  31  15  32  15 /  20  10   0   0   0   0 


ID...Winter Weather Advisory until 4 PM PST this afternoon for Coeur 
     d'Alene Area-Northern Panhandle.

     Winter Weather Advisory until 10 PM PST this evening for Central 
     Panhandle Mountains-Idaho Palouse.

     Winter Weather Advisory until 4 AM PST Wednesday for Lewis and 
     Southern Nez Perce Counties.

WA...Winter Weather Advisory until 4 PM PST this afternoon for 
     Northeast Mountains-Okanogan Highlands-Spokane Area.

     Winter Weather Advisory until 10 PM PST this evening for Lower 
     Garfield and Asotin Counties-Washington Palouse.

     Winter Weather Advisory until 4 AM PST Wednesday for Northeast 
     Blue Mountains.



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