288
FXUS66 KOTX 291922
AFDOTX

Area Forecast Discussion
National Weather Service Spokane WA
1222 PM PDT Sun Jun 29 2025

.KEY MESSAGES...

- Temperatures trending much warmer through Tuesday including
  moderate to locally major HeatRisk Monday and Tuesday.

- Temperatures trending cooler but still warm Wednesday through
  the remainder of the week

- A chance of mountain showers and thunderstorms Wednesday and
  Thursday.

&&

.SYNOPSIS...
Temperatures will trend much warmer beginning Sunday, and
continue through the middle of next week. Temperatures will
cool slightly for the middle to end of next week but will remain
above normal.

&&

.DISCUSSION...
Tonight through Tuesday: The ridge of high pressure continues
to build through Tuesday, with warming temperatures and drying
conditions. Temperatures will warm into the 90s by Monday, with
upper 90s and low 100s by Tuesday. A Heat Advisory remains in
effect for much of the lower elevations with the exception of
the Cascades and Kellogg/Lookout Pass area. The Heat Advisory is
active from 9 AM Monday through 9 PM Tuesday. These will be the
warmest temperatures of the year so far, with a few locations
reaching near record, but are not forecasted to break any. Make
sure to take care in the heat by drinking plenty of fluids,
staying in an air- conditioned room, staying out of the sun, and
check up on relatives and neighbors.

Wednesday through Friday: Ensembles are coming into better
agreement that a shortwave will pass to the north, allowing for
the ridge to flatten. Even with the flattening ridge,
temperatures will remain above normal, mainly in the 80s to low
90s. Cascade gap winds also are a concern for Wednesday and
Thursday due to the pattern changing, especially after the warm
and dry conditions earlier in the week. Westerly winds will
increase in the Columbia Basin and stretching out towards
Spokane and the LC Valley, with gusts Wednesday and Thursday
afternoons gusting to 25 to 35 mph. With those gusts, continued
above normal temperatures and humidity dropping into the teens,
we will monitor these days as they are trending towards elevated
fire weather concerns. By Thursday and the Fourth of July,
ensembles are in agreement of a return to a warm and dry
forecast. Make sure to take precautions in the heat. /KK

&&

.AVIATION...
00Z TAFS: VFR conditions will prevail.

FORECAST CONFIDENCE AND/OR ALTERNATE SCENARIOS: High confidence
in conditions remaining VFR conditions.

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

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        56  93  61  96  63  91 /   0   0   0   0  10  10
Coeur d`Alene  56  92  60  95  63  91 /   0   0   0   0  10  10
Pullman        54  91  57  94  60  88 /   0   0   0   0  10  10
Lewiston       62  99  67 102  70  97 /   0   0   0   0  10  20
Colville       48  92  52  95  54  91 /   0   0   0   0   0  20
Sandpoint      52  89  54  92  57  90 /   0   0   0   0  10  10
Kellogg        60  89  64  93  67  89 /   0   0   0   0  10  20
Moses Lake     58  98  62 101  63  96 /   0   0   0   0  10  10
Wenatchee      66  96  69  99  69  93 /   0   0   0   0   0   0
Omak           59  96  62  99  62  96 /   0   0   0   0   0   0

&&

.OTX WATCHES/WARNINGS/ADVISORIES...
WA...Heat Advisory from 9 AM Monday to 9 PM PDT Tuesday for Central
     Chelan County-Lower Garfield and Asotin Counties-Moses
     Lake Area-Northeast Mountains-Okanogan Highlands-Okanogan
     Valley-Spokane Area-Upper Columbia Basin-Washington
     Palouse-Waterville Plateau-Wenatchee Area-Western
     Okanogan County.
ID...Heat Advisory from 9 AM Monday to 9 PM PDT Tuesday for Coeur
     d`Alene Area-Idaho Palouse-Lewis and Southern Nez Perce
     Counties-Lewiston Area-Northern Panhandle.

&&

$$