368
FXUS66 KOTX 172202
AFDOTX

Area Forecast Discussion
National Weather Service Spokane WA
302 PM PDT Fri Oct 17 2025

.KEY MESSAGES...

- Widespread lowland rain, mountain snow Saturday evening
  through Sunday. Widespread breezy winds Sunday.

&&

.SYNOPSIS...
Calm conditions expected Friday night. A stronger system
Saturday into Sunday will bring widespread lowland rain,
mountain snow, and widespread breezy winds.

&&

.DISCUSSION...
Tonight through Sunday: The breezy winds behind the earlier
cold front will calm through the evening and overnight Friday
into Saturday. By Saturday morning, a brief ridge pattern will
be in place over the region as a robust Low begins to press into
the Pacific Northwest. The Low will support a decent plume of
moisture pushing into the Inland Northwest and bring widespread
showers. Precipitable water values will increase to 0.75-1.0
through Sunday. Snow levels will range from 4000-4500ft.
Ensembles have increased the snow amounts for the Cascade
Mountain passes. An advisory has been issued for Washington Pass
for possible winter travel conditions on Sunday. It can bring
travel issues to Stevens and Washington Passes with a 60-70%
probability of 24 hour snow total of 4 inches. The lower
elevations of Washington can expect rain ranging from
0.10-0.40. Idaho Panhandle amounts range from 0.70-1.00. Winds
will increase across the Basin with the system passage with
sustained speeds of 25 to 25 mph and gusts peaking around 40 mph
on Sunday afternoon. Winds could be locally stronger around the
Blues with gusts near 50 mph possible. Highs will continue to
50s to low 60s. Overnight lows will trend warmer with the
increasing clouds decreasing the radiative cooling efficiency.
Lows will be in the upper 30s and 40s.

Monday through Thursday: Ensembles are building a ridge over
the region for the start of next week. It will bring a dry trend
through Wednesday. The ridge will also stall a Low over the
Gulf of Alaska. Ensembles are bringing the Low across the
Pacific Northwest next weekend. It has potential to bring
impactful mountain snow and rain to the Inland Northwest. Highs
will continue to be in the 50s and low 60s. Lows will drop back
to the upper 20s and 30s. /JDC

&&

.AVIATION...
00Z TAFS: Sky conditions are clearing behind the exiting cold
front. TAF sites are generally expected to be VFR. Winds will
calm overnight.

FORECAST CONFIDENCE AND/OR ALTERNATE SCENARIOS: High confidence
in VFR conditions at the TAF sites.

-----------------------
Confidence descriptors:
Low - Less than a 30 percent chance
Moderate - 30 to 70 percent chance
High - Greater than a 70 percent chance

For additional probabilistic information for NWS Spokane
airports, please refer to the Aviation Dashboard on our webpage:
https:/weather.gov/otx/avndashboard

&&

.Preliminary Point Temps/PoPs...
Spokane        32  55  43  56  37  55 /   0  10  90  70  30   0
Coeur d`Alene  32  54  42  54  38  52 /   0  10 100  90  60  10
Pullman        30  56  43  54  37  54 /   0   0  80  90  50   0
Lewiston       38  62  48  62  42  60 /   0   0  70  90  40   0
Colville       21  52  38  54  29  53 /   0  20  90  70  30   0
Sandpoint      28  51  40  50  36  50 /  10  10 100  90  80  20
Kellogg        33  55  41  49  40  50 /  20  10 100 100  90  30
Moses Lake     29  55  43  61  36  58 /   0  10  60  30   0   0
Wenatchee      38  53  42  58  41  58 /   0  20  70  40  20   0
Omak           33  53  39  59  36  57 /   0  20  70  30  10   0

&&

.OTX WATCHES/WARNINGS/ADVISORIES...
WA...Wind Advisory until 5 PM PDT this afternoon for Okanogan
     Valley-Waterville Plateau-Wenatchee Area.
     Winter Weather Advisory from 11 PM Saturday to 11 PM PDT
     Sunday for Western Okanogan County.
ID...None.

&&

$$