Spokane Valley, Virginia 7 Day Weather Forecast

Wx Forecast - Wx Discussion - Wx Aviation

785
FXUS66 KOTX 131744
AFDOTX

Area Forecast Discussion
National Weather Service Spokane WA
944 AM PST Tue Jan 13 2026

.KEY MESSAGES...

- Dry and stagnant pattern under strong ridge of high pressure
  by mid week into the weekend.

&&

.SYNOPSIS...
Strong high pressure builds in on Tuesday and remain in place
through the upcoming weekend. Low clouds and fog is expected to
expand into the valleys Tuesday night into Wednesday, then
become established across much of the Inland Northwest by
Thursday.

&&

.DISCUSSION...
Today through Monday: A high pressure center will drift along
the West Coast and lead to a prolonged ridge pattern over the
Pacific Northwest. It will bring warm days, cold nights, and
mainly dry for the Inland Northwest. Outside of today and
Wednesday, the chance of any measuring precip for the region is
less than 5 percent. As for today, moisture is still over
topping the strengthening ridge and could bring light shower
activity to the North Cascades, Northeast WA, and North ID areas
through the morning. Amounts will only be a few hundredths at
most. On Wednesday, ensembles are bringing weak shortwave over
the Eastern Cascades. The wave has been on the drying trend
between runs but it still has around a 10 percent chance of
precip for the area. But it will struggle to have any
accumulation.

Main concerns for the period is the stable environment leading
to stagnate air and morning fog. The strong overnight inversion
and lack of mixing near the surface could possibly lead to
localized degraded air quality. While highs will be in the 40s
and low 50s across the region today, overnight lows will
continue to dip into the 20s and low 30s. It is expected to lead
areas of early morning fog.

The pattern begins to change over the weekend. The ridge apex
is set farther west over the Pacific leading to a north to
south upper level flow. It will push colder air into the region
and highs will begin to dip for Sunday and Monday. Some model
members begin to hint a low pushing across mid week and
bringing our best chance of precip late Tuesday into Wednesday
of next week. /JDC

&&

.AVIATION...
18Z TAFs: Thick mid and high clouds streaming over the region
this morning have allowed for VFR skies for much of the Basin,
Palouse, and L-C Valley. Fog is limited to the Cascade valley
while areas of MVFR stratus impact terminals across far North
Idaho between COE, SZT, 65S, CQV, DEW. High clouds thin this
evening into the overnight with light boundary layer winds. This
will favor an increase in fog across the northern valleys (where
stratus is not established at sundown) down into the
Spokane/Coeur d`Alene area, Cascade valleys, and possibly the
Moses Lake area. There is moderate confidence for VFR skies to
remain PUW-LWS due to a persistent east/southeast, drier wind.

FORECAST CONFIDENCE AND/OR ALTERNATE SCENARIOS:
High confidence that fog and stratus today will be patchy and
limited to mainly the Cascade valleys with some marginal MVFR
conditions in the northern valleys and ID Panhandle. There is
also high confidence that Tuesday Night the thinning of high
clouds, light winds, and strengthening inversions will allow for
an increase in IFR/LIFR fog and stratus. But confidence is only
low to moderate on timing and coverage of when conditions
deteriorate at KGEG/KSFF/KCOE/KEAT/KMWH. SB

-----------------------

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:/www.weather.gov/otx/avndashboard

&&

.Preliminary Point Temps/PoPs...
Spokane        49  30  38  28  34  27 /   0   0   0   0   0   0
Coeur d`Alene  48  30  42  27  36  26 /   0   0   0   0   0   0
Pullman        49  34  46  30  43  29 /   0   0   0   0   0   0
Lewiston       53  35  48  32  37  30 /   0   0   0   0   0   0
Colville       45  32  38  29  36  26 /   0   0   0   0   0   0
Sandpoint      44  32  40  29  35  28 /  10   0   0   0   0   0
Kellogg        49  36  46  29  41  29 /  10   0   0   0   0   0
Moses Lake     50  30  38  29  38  27 /   0   0   0   0   0   0
Wenatchee      50  37  40  34  39  33 /   0   0   0   0   0   0
Omak           46  34  38  31  38  28 /   0   0   0   0   0   0

&&

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

&&

$$