Area Forecast Discussion
Issued by NWS Spokane, WA

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000
FXUS66 KOTX 310008
AFDOTX

Area Forecast Discussion
National Weather Service Spokane WA
508 PM PDT Fri Oct 30 2020

.SYNOPSIS...
Winds will wane this evening with the threat for blowing dust
diminishing. High pressure will return for the weekend into early
next week bringing light winds, mild temperatures, and potential
for fog. The weather pattern will become breezy and unsettled
around the middle to end of next week with several opportunities
for rain. Colder temperatures are possible by next weekend with
snow in the mountains and mix of rain and snow in the
lowlands.

&&

.DISCUSSION...
Update: Winds have decreased below advisory thresholds in North
Central WA and low visibility from blowing dust has also
diminished across the Columbia Basin and Waterville Plateau and
thus have cancelled the wind and blowing dust advisories. Still
seeing areas of blowing dust reducing visibility to 3-6 miles
which will continue into early this evening across Eastern
Washington and north Idaho. Winds will continue to gradually
decrease this evening as pressure gradients begin to relax and the
loss of daytime heating stablizes the lower atmosphere leading to
less wind gust potential. JW

&&

.AVIATION...
00Z TAFS: Gusty winds behind a cold front will gradually subside
this evening. Areas of blowing dust will linger through 02z this
evening across the Columbia Basin into portions of Eastern WA and
the Idaho Panhandle with visibility reduced to 3-5 miles in some
areas...with greater restrictions near dust source regions.
Overnight the boundary layer moistens over the ID Panhandle and SE
WA with some of the higher resolution models showing IFR stratus
developing around 12z before expanding and lifting north towards
KGEG/KSFF/KCOE between 12-18z. Other ensemble guidance shows less
coverage and given the drier air moving into the region today
forecast sides towards keeping conditions VFR for all TAF sites.
JW

&&

.PRELIMINARY POINT TEMPS/POPS...
Spokane        27  49  27  55  29  57 /   0   0   0   0   0   0
Coeur d`Alene  28  49  29  55  30  57 /   0   0   0   0   0   0
Pullman        27  50  29  56  31  59 /   0   0   0   0   0   0
Lewiston       35  55  35  61  37  63 /   0   0   0   0   0   0
Colville       22  51  24  54  25  56 /   0   0   0   0   0   0
Sandpoint      29  46  29  51  29  53 /   0   0   0   0   0   0
Kellogg        31  48  35  57  38  60 /   0   0   0   0   0   0
Moses Lake     26  54  28  56  28  57 /   0   0   0   0   0   0
Wenatchee      35  52  35  55  36  57 /   0   0   0   0   0   0
Omak           30  51  30  53  32  54 /   0   0   0   0   0   0

&&

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

&&

$$


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