Area Forecast Discussion
Issued by NWS Spokane, WA

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FXUS66 KOTX 231138
AFDOTX

Area Forecast Discussion
National Weather Service Spokane WA
438 AM PDT Mon Oct 23 2017

.SYNOPSIS...
Expect mild and dry conditions through the week as high pressure
builds into the Pacific Northwest. The ridge will likely get
interrupted briefly by a fast moving weather system on Wednesday.
That wave will bring a shot of showers and breezy winds.
Conditions will then return to warm and dry the remainder of the
week.

&&

.DISCUSSION...
Today through Tuesday...A ridge of high pressure will build into
the region today and with the exception of a disturbance on
Wednesday will remain in control of the weather through the week.
Today and Tuesday will be on the warm side of normal mild of
normal and dry. Strong morning inversions will result in chilly
valley temperatures and the chance for patchy fog. Afternoon
mixing will be poor and have short windows. Winds will be light
and mainly terrain driven. Tobin

Wednesday through Saturday...Winds have been decreased for
Wednesday. A weak cold front will drop from the northwest but not
as strong as some model solutions previously depicted. Still could
see some breezy winds down the Okanogan Valley Wednesday evening
behind the front however as winds channel down the valley. The
brunt of the moisture with this system will also pass north of the
Canadian border. Still enough moisture combined with the upslope
flow into the Cascade crest and Idaho Panhandle to warrant a
chance of showers but amounts will be light. After this front
passes a strong upper ridge builds over the region Thursday
through the weekend. This will result in clear to mostly clear
skies. Despite the strong ridge time of year will not favor
abnormally warm temperatures due to limited mixing potential.
Still model guidance suggest most towns should reach the mid 50s
to lower 60s each day. JW

&&

.AVIATION...
12Z TAFS: High pressure over the region today and Tuesday will
result in warm and dry conditions with light and mainly terrain
driven winds. Some lingering low level moisture may result in
some localized stratus/BCFG for the mountain valleys but the TAF
sites should remain VFR through 12z Tuesday. Tobin

&&

.PRELIMINARY POINT TEMPS/POPS...
Spokane        54  37  58  39  57  39 /   0   0   0   0  20   0
Coeur d`Alene  54  36  58  38  56  38 /   0   0   0   0  20  10
Pullman        56  39  62  41  60  41 /   0   0   0   0  20  10
Lewiston       62  42  65  43  66  43 /   0   0   0   0  10  10
Colville       56  34  57  34  54  35 /   0   0   0   0  20   0
Sandpoint      52  34  55  35  53  34 /   0   0   0   0  30  10
Kellogg        50  36  58  38  54  37 /   0   0   0   0  30  10
Moses Lake     60  35  61  36  62  36 /   0   0   0   0  10   0
Wenatchee      59  38  59  40  62  41 /   0   0   0   0  10   0
Omak           57  35  57  36  58  38 /   0   0   0   0  10   0

&&

.OTX WATCHES/WARNINGS/ADVISORIES...
ID...None.
WA...None.

&&

$$



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