259
FXUS66 KOTX 112128
AFDOTX

Area Forecast Discussion
National Weather Service Spokane WA
228 PM PDT Fri Jul 11 2025

.KEY MESSAGES...

- Warming trend continues through the weekend with temperatures
  peaking on Sunday.

&&

.SYNOPSIS...
Warm temperatures will continue through Monday with the highest
temperatures expected on Sunday. Conditions will remain dry and
winds will be locally breezy each afternoon across Central
Washington. Heat Advisories have been issued across much of the
region for noon Saturday to 8pm Monday.

&&

.DISCUSSION...
Friday afternoon through Monday: A warming trend will continue
through the weekend with temperatures increasing by a few degrees
each day. Afternoon highs will peak Sunday, reaching the mid 90s to
just over 100 degrees. Overnight lows will also be quite warm with a
number of locations including Wenatchee, Mattawa, Ephrata, Coulee
Dam, and Lewiston struggling to cool below 70 degrees Saturday night
into Sunday and Sunday night into Monday. This will make it
challenging for those without air conditioning to cool off indoor
spaces at night by opening windows. Due to the combination of hot
temperatures during the day and limited cooling at night, a Heat
Advisory has been issued from noon Saturday to 8pm Monday for the
Okanogan Valley, most of the Columbia Basin, the Spokane/CDA area,
and the L-C Valley. In addition to the warm temperatures, thermally
induced low pressure at the surface over Eastern WA will create a
cross-Cascade pressure gradient that will cause westerly winds to
pick up each afternoon and evening through the Cascade gaps into the
western Columbia Basin.

Tuesday through Thursday: Models are generally in agreement on a
system moving in mid-next week, bringing cooler temperatures and an
increase in winds which will lead to elevated fire weather concerns.
Uncertainty remains with regard to the strength and timing of the
system. We will continue to monitor the wind forecast for this
timeframe over the coming days. Any precipitation associated
with the system will likely be confined to far northeastern WA
and North ID. /Fewkes

&&

.AVIATION...
18Z TAFS: VFR conditions are expected to continue for all TAF
sites through the 24hr TAF period.

FORECAST CONFIDENCE AND/OR ALTERNATE SCENARIOS: High confidence
that VFR conditions will continue at all TAF sites. The Hope
and Western Pines Fires over NE Washington could advect some
smoke into the Spokane/Coeur d`Alene area Friday, though
visibility at the surface is not expected to drop below 6 miles
at this time.
-----------------------

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        89  60  93  64  96  65 /   0   0   0   0   0   0
Coeur d`Alene  87  59  91  63  94  65 /   0   0   0   0   0   0
Pullman        85  54  89  59  91  60 /   0   0   0   0   0   0
Lewiston       95  66  99  69 100  71 /   0   0   0   0   0   0
Colville       87  50  93  54  95  54 /   0   0   0   0   0   0
Sandpoint      84  54  88  58  91  60 /   0   0   0   0   0  10
Kellogg        85  62  88  66  90  67 /   0   0   0   0   0   0
Moses Lake     93  61  98  65 100  66 /   0   0   0   0   0   0
Wenatchee      93  68  96  71  98  72 /   0   0   0   0   0   0
Omak           92  62  97  65 100  65 /   0   0   0   0   0   0

&&

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

&&

$$