558
FXUS66 KOTX 101032
AFDOTX

Area Forecast Discussion
National Weather Service Spokane WA
332 AM PDT Sun Aug 10 2025

.KEY MESSAGES...

- Drying and warming trend through Tuesday.

- Elevated fire weather conditions possible Tuesday through
  Wednesday with warm, breezy conditions.

- Cooling trend Wednesday through Friday.

&&

.SYNOPSIS...
A warming trend will provide more typical summer like conditions
over the next few days, with the warmup peaking on Monday and
Tuesday as high temperatures warm into the high 90s to low 100s.
Breezy winds will usher in a gradual cool down Wednesday through
Friday.

&&

.DISCUSSION...
Today through Tuesday: High pressure off the coast will nudge a
ridge into the Pacific Northwest. It will bring another round
of hot temperatures of 90s and low 100s. Some ensembles members
are showing a weak area instability along the Cascades Sunday
afternoon. NBM is showing a less than 5 percent chance of
thunderstorms. There is not enough confidence to include in the
forecast. Overnight lows will be in the upper 50s to low 70s.

Wednesday through Sunday: Models are bringing shortwave trough
into the region on Wednesday. Most of the moisture is expected
to stay north of the border as it passes. There are gradual
increases to the shower chances along the border. Any precip
amounts are not expected to be more than couple of hundredths.
The trough will usher breezy winds across the Basin. Winds will
be sustained in the teens and mid 20s with gusts into the low 30
mph range. The trough will also bring a cold air push and bring
lower near normal temperatures. Highs will be in the 80s. Lows
will be in the upper 40s and low 60s. /JDC

&&

.AVIATION...
12Z TAFS: VFR conditions will prevail under dry northwest flow
the next 24 hours.

FORECAST CONFIDENCE AND/OR ALTERNATE SCENARIOS:
High confidence for VFR conditions. JW

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

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

&&

.FIRE WEATHER...
Fire weather concerns Mon-Wed: By Tuesday, the upper level ridge
begins to retrograde west, but temperatures remain very warm in the
90s and low 100s. Fire danger will increase Mon-Wed period with a
pair of shortwaves moving through BC. There are still considerable
differences amongst the GEFS members for the HDW (Hot, Dry, Windy)
Index so confidence in this detail is low. Ensemble agreement is
good for a sustained cooldown into late next week into the 70s and
80s. Models are in good agreement of another trough bringing low end
shower chances to the region near the Canadian border Thursday
through Saturday. DB

&&

.Preliminary Point Temps/PoPs...
Spokane        94  63  96  63  97  65 /   0   0   0   0   0   0
Coeur d`Alene  92  63  96  62  96  63 /   0   0   0   0   0   0
Pullman        89  59  94  59  94  61 /   0   0   0   0   0   0
Lewiston       97  69 102  69 102  69 /   0   0   0   0   0   0
Colville       92  54  94  51  94  53 /   0   0   0   0   0   0
Sandpoint      89  57  92  57  92  57 /   0   0   0   0   0   0
Kellogg        87  65  92  66  93  65 /   0   0   0   0   0   0
Moses Lake     97  63  99  68  99  64 /   0   0   0   0   0   0
Wenatchee      99  71  99  73  99  70 /   0   0   0   0   0   0
Omak           99  67  99  65  99  64 /   0   0   0   0   0   0

&&

.OTX WATCHES/WARNINGS/ADVISORIES...
WA...Heat Advisory from noon Monday to 8 PM PDT Tuesday for Lower
     Garfield and Asotin Counties-Northeast Mountains-Spokane
     Area-Washington Palouse.
     Heat Advisory from noon today to 8 PM PDT Tuesday for Central
     Chelan County-Moses Lake Area-Okanogan Valley-Upper
     Columbia Basin-Waterville Plateau-Wenatchee Area-Western
     Okanogan County.
ID...Heat Advisory from noon Monday to 8 PM PDT Tuesday for Central
     Panhandle Mountains-Coeur d`Alene Area-Idaho Palouse-
     Lewiston Area-Northern Panhandle.

&&

$$