Area Forecast Discussion
Issued by NWS Spokane, WA

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FXUS66 KOTX 051751
AFDOTX

Area Forecast Discussion
National Weather Service Spokane WA
951 AM PST Mon Dec 5 2016

.SYNOPSIS...
Icy and slick conditions are possible early this morning with
colder temperatures. The next weather system will give the region
a glancing blow. Light snow is forecast for the Columbia Basin,
Palouse, and southern Idaho Panhandle Monday afternoon into
Monday night. Expect dry weather with some rather colder
temperatures. More snow will be on its way for Thursday into
Friday, and this snowy pattern may continue into the weekend.


&&

.DISCUSSION...
Morning update: a winter weather advisory was issued for portions
of the lee of the Cascades through upper Columbia Basin. A system
moving into western WA and the Cascades is expected to continue to
track east-southeast, bringing some snow across the Cascades and
through southern WA. The potential for accumulation this afternoon
and tonight may cause some impacts. General accumulation is
expected to increase as the afternoon progresses into evening.
General amounts between 1 to 3 inches will be possible through
Tuesday morning, though some spots may see less than 1 inch and
if you are in that area you may wonder what the fuss is about.
Yet it may fall during peak travel times and so the advisory is a
combination of those possible impacts during peak commute time and
those forecasted snow amounts. The northeastern CWA through
central Panhandle may see some light snow too, but accumulations
in general should be less than an inch and in some cases may not
see anything, especially the further northeast one travels from
the Columbia Basin. /J. Cote`

&&

.AVIATION...
18Z TAFS: A system tracks by the Cascades through southern
WA/north OR between this afternoon and Tuesday. This will bring
increasing snow to the Cascades and EAT/MWH area this afternoon,
expanding toward the eastern TAF sites. An inch or two will be
possible in EAT/MWH/PUW through Tuesday morning. Less than an
inch is expected at other TAF sites and in some cases only trace
amounts may fall. VFR conditions are expected to degrade to
MVFR/IFR with the developing snow and moistening BL. EAT/MWH will
be impacted this afternoon by said conditions, while eastern TAF
sites may not be impacted until after 03-09Z. The precipitation
threat gradually starts to wane overnight and especially Tuesday
morning from the west and northwest. /J. Cote`



&&

.PRELIMINARY POINT TEMPS/POPS...
Spokane        30  18  24   9  19  10 /  20  50  20   0   0  10
Coeur d`Alene  29  16  23   6  18   8 /  20  20  20   0   0  10
Pullman        32  21  26  12  22  12 /  20  80  50  10   0  10
Lewiston       35  23  30  16  25  14 /  10  80  30  10  10  10
Colville       30  16  24   9  21   8 /  20  10   0   0   0   0
Sandpoint      26  13  20   3  17   6 /  10  10   0   0   0  10
Kellogg        25  10  18   3  16   5 /  20  30  20  10  10  10
Moses Lake     35  22  31  13  25  15 /  40  80  30   0   0  10
Wenatchee      33  23  30  13  23  14 /  70  80  20   0   0  10
Omak           30  18  26   9  20  10 /  30  40   0   0   0  10

&&

.OTX WATCHES/WARNINGS/ADVISORIES...
ID...None.
WA...Winter Weather Advisory from 1 PM this afternoon to 7 AM PST
     Tuesday for Waterville Plateau-Wenatchee Area.

     Winter Weather Advisory from 4 PM this afternoon to 10 AM PST
     Tuesday for Moses Lake Area-Upper Columbia Basin.

&&

$$



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