Area Forecast Discussion
Issued by NWS Spokane, WA

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FXUS66 KOTX 210549
AFDOTX

Area Forecast Discussion
National Weather Service Spokane WA
949 PM PST Sat Jan 20 2018

.SYNOPSIS...
An active weather pattern is expected through the week. Snow and
rain will develop late tonight into Sunday. More weather systems
will bring significant precipitation Tuesday night into Wednesday
and again next weekend with a mix of rain and snow across the
lower elevations and snow in the mountains. Travel impacts are
expected at times, especially over the mountain passes.

&&

.DISCUSSION...
Made evening updates regarding temperatures, especially in the
Omak area where raditional cooling allowed the temperature to drop
below its minimum and freezing. As clouds increase, could see near
steady temperatues and but a good chance that the onset of the
precipitation will be as snow. Evening showers are quickly
decreasing acros north Idaho, meanwhile a deck of low clouds
lingers across northeast Washington and north Idaho. Patchy fog
will also be an issue across northeast Washington, and as
temperatures drop below freezing, slick spots on roadways may be
an additional issue. /rfox.

&&

.AVIATION...
06Z TAFS: Satellite shows strata cumulus persisting across extreme
eastern WA and north Idaho with MVFR cigs. Anticipate some
clearing to VFR conditions during the overnight hours for the
eastern TAF sites. Clouds increase from the west with the next
system. Light snow will move into the KEAT area by 16z with MVFR
cigs, followed by a rain/snow mix by afternoon. Mainly light rain
will spread across the Columbia Basin during the afternoon. Light
rain with MVFR cigs move into KGEG-KCOE, KPUW and KLWS by 00z with
MVFR cigs, then a rain snow mix and breezy south winds are
possible by early evening. Meanwhile precipitation looks to
decrease from west to east with some partial clearing. /rfox

&&

.PRELIMINARY POINT TEMPS/POPS...
Spokane        30  39  29  37  27  35 /  10  10  90  20  10  20
Coeur d`Alene  29  40  30  36  27  35 /  10  10  90  40  30  20
Pullman        29  41  32  39  29  38 /  10  10  80  30  20  10
Lewiston       32  46  34  44  32  43 /  10  10  30  20  20  10
Colville       29  39  29  36  24  34 /  10  60  90  20  10  30
Sandpoint      29  39  30  35  26  33 /  20  20  90  60  30  20
Kellogg        28  39  29  34  27  34 /  30  10  80  60  50  20
Moses Lake     32  44  30  43  27  39 /  10 100  10  10  10  20
Wenatchee      30  36  27  38  25  32 /  10  90  20  10  10  50
Omak           29  36  26  35  23  31 /  20 100  60  10  10  50

&&

.OTX WATCHES/WARNINGS/ADVISORIES...
ID...None.
WA...Winter Weather Advisory from 4 AM to 10 PM PST Sunday for East
     Slopes Northern Cascades.

     Winter Weather Advisory from 7 AM to 10 PM PST Sunday for
     Okanogan Highlands.

     Winter Weather Advisory from 7 AM to 7 PM PST Sunday above 2000
     feet for Okanogan Valley-Waterville Plateau.


&&

$$


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