862
FXUS66 KOTX 030558
AFDOTX

Area Forecast Discussion
National Weather Service Spokane WA
958 PM PST Sun Nov 2 2025

.KEY MESSAGES...

- Weather remains active through the week.

- Periods of winter driving conditions over Cascade passes.

&&

.SYNOPSIS...
Several storm systems will impact the region through the week,
each bringing valley rain and high mountain snow. Mountain
passes could have winter driving conditions through the week.
Breezy winds across the Basin Tuesday and Friday afternoons.

&&

.DISCUSSION...
Tonight through Monday: A 130kt upper level jet over the
Pacific Northwest will track small Low pressure system into the
northern OR coastline into Monday. It will bring increasing mid
to high level clouds to the Inland Northwest for Sunday evening.
High pressure over Southern BC is keeping the moisture along
southern WA and Lower ID Panhandle through the morning. Precip
chances will creep further North as the Low continues to move
Southwest to Northeast across the Inland Northwest. By Monday
afternoon, the region has at least a 40% chance of precip
excluding the Okanogan Valley(20%). Precip amounts are highest
along the Cascades and Central Panhandle mountains with around
half an inch. The rest of the region can expect up to two
tenths. For precip type, snow levels will start around 3500ft
before rising through the day. It will keep the low lands as
rain. Stevens and Washington Pass have a 70% probability of at
least 2 inches of snow through Tuesday morning. These areas
could get as much as 5 inches. Snow levels for Lookout Pass will
be around 6000ft limiting snow impacts. Overnight lows will be
in the upper 20s and 30s. Mondays highs will be in the 40s and
low 50s. Any precip chances will diminish be Tuesday morning.

Tuesday and Wednesday: As the jet and remains of the low exit
the region, the Pacific Northwest will become wedged between a
strengthen ridge east of the Continental Divide and a deepening
trough along the coast. Any precip chances will diminish be
Tuesday morning. A Gulf of Alaska Low will bring a wave of
moisture across the Inland Northwest that is around 200% of
normal precipitable water (0.8-1 inch). Precip chances will be
at least 80% across the region. The warm air associated with the
wave will bring snow levels 6000ft by Wednesday morning.
Ensembles are indicating another Cascade Pass snow event with
around 4 to 6 inches expected through Wednesday. Precip amounts
range from 0.2-0.4 of an inch for the higher terrain and 0.1-0.3
of an inch for the lower terrain. Areas of the Cascades see
amounts around 0.6-0.8 of an inch. Winds will be breezy across
the Central Basin with gusts into the low 20s mph. Highs will be
in the upper 40s and low 50s. Lows will be in the 30s and low
40s.

Thursday through Saturday: For Thursday morning, the region
will again have another break before the Low pushes another wave
across the region. Ensembles are beginning to diverge on the
timing and moisture associated with it. Highest precip amounts
are expected to be along the Cascades due to the east to west
trajectory of the wave. The rain shadow effect lowers the
confidence on precip amounts for the rest of the region. For
now, the Cascades will again have high precip amounts up to an
inch. With lower snow levels, the Northern Cascades and
Washington Pass could see near a foot of snow through through
Saturday. Precip amounts for the rest of the are around 0.1-0.3
of an inch. Winds will be gusty across the Basin on Friday into
Saturday with gusts into the low 30s mph. Highs will be in the
upper 40s and 50s. Lows will be in the 30s and low 40s. /JDC

&&

.AVIATION...
06Z TAFS: High clouds are increasing across the Inland Northwest
ahead of an approaching weather system. Models generally are
keeping all TAF sites VFR for the first half of the TAF period
as the boundary layer moistens from the top down. Chances for
rain begin to increase around 18-19Z for TAF sites, with higher
chances after 21Z. Ceilings are expected to gradually lower to
MVFR with the arrival of rain, lowering to IFR around 00Z for
all TAF sites except KMWH and KLWS.

.FORECAST CONFIDENCE AND/OR ALTERNATE SCENARIOS: Confidence
remains high for VFR conditions through the early morning. There
is moderate confidence for widespread MVFR conditions between
18-00Z, then high confidence after 00Z. There is low to moderate
confidence in IFR conditions after 00Z for KGEG, KSFF, KCOE,
KPUW, and KEAT.

-----------------------
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        34  46  36  47  38  51 /  10  70  90  60  70  90
Coeur d`Alene  33  45  36  46  38  50 /  10  80  90  80  70  90
Pullman        33  45  37  50  40  53 /   0  70  90  70  70  80
Lewiston       36  50  43  58  46  60 /   0  60  90  50  50  70
Colville       25  46  27  45  28  45 /  10  60  70  50  70 100
Sandpoint      30  43  32  43  34  46 /  10  80  90  80  80  90
Kellogg        34  44  39  46  40  50 /  10  90 100  90  80  90
Moses Lake     36  49  36  50  40  53 /   0  40  80  40  80  90
Wenatchee      38  46  39  47  41  48 /  10  60  80  50  90  90
Omak           33  47  34  48  37  49 /  10  50  50  30  70 100

&&

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

&&

$$