311
FXUS66 KOTX 171118
AFDOTX

Area Forecast Discussion
National Weather Service Spokane WA
418 AM PDT Sun Aug 17 2025

.KEY MESSAGES...

- Isolated thunderstorms possible through Monday morning.

- Warm and dry for the new work week.

&&

.SYNOPSIS...
As the system continues to exit the region, isolated
thunderstorms are possible through Monday morning. Behind the
system, a ridge pattern will lead to a return of warm, dry
conditions across the region.

&&

.DISCUSSION...
Today and Monday: As the weekend system continues to exit the
region, it will have lingering showers over extreme Eastern WA
and the ID Panhandle. Weak afternoon instability could bring an
isolated thunderstorm over Southeast WA and the Lower ID
Panhandle this afternoon. Activity will wane overnight.
Ensembles are showing enough instability and residual moisture
to pulse another round of shower activity Monday morning. With
the bulk of moisture out of the region, amounts are not expected
to be more than a hundredth with a 50% probability of more. It
could generate an isolated lightning strike across extreme
Eastern WA and ID Panhandle. Main impact from any thunderstorm
will be the infrequent lightning. Winds will continue the calm
overnight night and gusty in the afternoons. Wind gusts will be
in the teens. Highs will be in the 80s. Lows will be in the 50s.

Tuesday through Saturday: Weak ridging will build over the
region through the workweek bringing a return of dry and warm
weather. Temperatures will gradually climb back into the upper
80s and low 90s. /JDC

&&

.AVIATION...
12Z TAFS: VFR conditions are expected throughout the TAF period
for all sites. Winds will be mostly light, and no precipitation
is expected. Isolated low stratus and fog formation possible in
northern valleys, but any clouds or fog will dissipate after
sunrise, and no TAF sites are anticipated to be impacted.

FORECAST CONFIDENCE AND/OR ALTERNATE SCENARIOS:
High confidence in continued VFR conditions. Low confidence in
TAF sites being impacted by fog or low stratus overnight.

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

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        81  57  84  57  87  58 /   0   0  20   0   0   0
Coeur d`Alene  82  57  84  58  89  58 /   0   0  10   0   0   0
Pullman        79  53  82  53  85  54 /   0  10  10   0   0   0
Lewiston       88  64  91  63  93  64 /  10  10  10   0   0   0
Colville       81  46  82  45  86  47 /   0   0  20   0   0   0
Sandpoint      80  51  82  52  88  53 /   0   0  20   0   0   0
Kellogg        78  59  83  61  88  60 /   0   0  20   0   0   0
Moses Lake     83  58  86  55  87  56 /   0  10  20   0   0   0
Wenatchee      83  62  85  60  87  63 /   0   0  10   0   0   0
Omak           83  57  85  56  87  58 /   0   0  10   0   0   0

&&

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

&&

$$