Area Forecast Discussion
Issued by NWS Spokane, WA

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FXUS66 KOTX 101859
AFDOTX

Area Forecast Discussion
National Weather Service Spokane WA
1059 AM PST Sat Dec 10 2016

.SYNOPSIS...
Periods of light snow will continue through the weekend and into
early next week. Brisk dry north winds are expected Monday down
the Okanogan Valley the will spread out over the western basin.
Temperatures will become very cold by Tuesday and will continue
through next week. Many areas will see overnight temperatures fall
into the single digits with some locations seeing temperatures
below zero for early to mid week.


&&

.DISCUSSION...
Update this morning was to let all the advisories expire. The
system that brought widespread snow to the region last night and
early this morning has moved off into western Montana. Most
locations will remain dry through the afternoon hours with mostly
cloudy skies. Have issued another advisory for the Cascades
starting this afternoon and continuing through at least Sunday
evening as models are showing the potential for some very heavy
snow...mainly along the crest. Crest amounts of 9 to 18 inches
with locally higher amounts is likely. The valleys of the
cascades could see anywhere from 4 to 7 inches...that is for
mainly around Lake Chelan and southward. The Methow valley will
see the least amount of snow, with 2 to 3 inches possible.
Additional highlights for eastern WA and north ID will likely be
forthcoming w the afternoon package for the anticipated snow
tonight and Sunday. /Nisbet

&&

.AVIATION...
18Z TAFS: -SN has moved out of TAF locations with mainly stratus
remaining. Some local LIFR/IFR vis and/or cigs will continue for
KGEG, KPUW and KMWH. Snow will spread west to east through the
evening hours starting with KEAT arnd 00Z to KGEG by 03Z. For
eastern TAF locations the snow will be continue through the night
changing over to -shsn by 14-15Z. Vis should remain MVFR through
the event, but cigs could go down to IFR.


&&

.PRELIMINARY POINT TEMPS/POPS...
Spokane        28  27  33  24  25   5 /  10  80  60  50  10  10
Coeur d`Alene  28  27  34  25  27   3 /  10  90  80  70  20  10
Pullman        32  28  33  28  28   9 /  10  80 100  80  70  30
Lewiston       36  30  37  29  34  16 /  10  50  40  20  30  30
Colville       32  28  34  23  26   6 /  10  80  30  20  10  10
Sandpoint      31  27  33  27  28   5 /  20  90  60  60  20  10
Kellogg        29  27  32  26  26   2 /  40 100 100  90  40  20
Moses Lake     30  25  35  22  28   9 /   0  30  30  30  20  10
Wenatchee      29  26  35  26  28  10 /   0  30  20  20  20  10
Omak           28  25  32  20  23   8 /  10  80  10  20  10   0

&&

.OTX WATCHES/WARNINGS/ADVISORIES...
ID...None.
WA...Winter Weather Advisory until 10 PM PST Sunday for East Slopes
     Northern Cascades.

&&

$$


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