945
FXUS66 KOTX 272358
AFDOTX

Area Forecast Discussion
National Weather Service Spokane WA
458 PM PDT Fri Jun 27 2025

.KEY MESSAGES...

- Breezy winds continuing across Central and Eastern Washington
  through this evening.

- Scattered showers continuing through early evening across the
  northern mountains, with a 15 percent chance of thunderstorms
  near the Canadian border.

- Temperatures trending much warmer Sunday through early next
  week including Moderate and Major HeatRisk on Monday and
  Tuesday.

&&

.SYNOPSIS...
Scattered showers over the northern mountains along with breezy
winds across the area will continue into this evening.
Temperatures will trend much warmer Sunday through early next
week as high temperatures warm into mainly the 90s on Monday and
mid 90s Tuesday with a few areas approaching around 100 degrees.
Temperatures will cool slightly for the middle to end of next
week but will remain above normal.

&&

.DISCUSSION...
Westerly flow remains overhead with an embedded wave continuing to
move across the area today helping support and sustain chances (20-
40%) of light shower activity across the northern mtns. Can`t rule
out a lightning strike or two given there is non-zero instability
maxing out at 100 j/kg in far NE WA and N ID, kept 15% chance of
thunder. At the sfc, breezy west to southwest winds will continue to
gust up to 15-25mph through the afternoon and into late evening.
Another subtle wave will move through the westerly flow tomorrow
tomorrow that could bring a couple addition showers to far NE WA and
N ID, though chances maxing out near 15% closest to the Canadian
border in.

Attention then turns to the ridge will be amplifying off the NW
Pacific. This building ridge will kick off the warming trend as
it continues to build and move across the area through Tuesday.
Confidence continues to increase for impactful heat across the
area Monday and Tuesday. Supporting the confidence, NBM 25-75
percentile temperature spread has reduced to just 2-3 degrees.
Temperatures across the expected to climb into 95-100 degree
range. The probability of reaching greater than 90 degrees is
80% or greater across much of central and eastern WA and the
western portion of the ID panhandle Monday. Temps will creep up
slightly Tuesday as the probability of reaching greater than 95
degrees is 85% or greater across much of central and eastern WA
Tuesday. Moderate to major heat risk is expected across the
area. Heat headlines will likely be considered within the next
couple of forecast cycles.

The upper ridge starts to move out late Tuesday, meanwhile, a subtle
leave wave looks to eject out of a deeper trough forming in the Gulf
of Alaska. This lead disturbance combined with increasing moisture
as flow turns more southwesterly could be enough to trigger some
elevated convection across eastern WA and north ID. Similar to
previous forecast, chances for showers and storms remain low with
NBM continuing to advertise 10-15% chance of showers with 10%
or so chance of convection. We will continue to monitor the
period.

As heights subtly fall Wednesday, temps should cool by a few
degrees. That said, model spread in temperatures Wednesday
remain high, at around 10 degrees area wide so it remains an
area of relative uncertainty at this time.

&&

.AVIATION...
00Z TAFS: VFR conditons expected across TAF sites. Main
aviation concern this period will be the breezy winds of
10-15mph which will gust to 15-25mph this afternoon and evening
before tapering off overnight.

FORECAST CONFIDENCE AND/OR ALTERNATE SCENARIOS: High confidence
of VFR conditions for all TAF sites. High confidence in breezy
conditions today.

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

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        51  79  52  87  56  93 /   0   0   0   0   0   0
Coeur d`Alene  53  78  52  84  56  92 /   0   0   0   0   0   0
Pullman        47  75  48  84  53  91 /   0   0   0   0   0   0
Lewiston       58  83  58  92  61  99 /   0   0   0   0   0   0
Colville       43  78  43  85  48  92 /  10   0   0   0   0   0
Sandpoint      50  75  47  83  50  90 /  10  10   0   0   0   0
Kellogg        55  73  55  82  59  91 /  10   0   0   0   0   0
Moses Lake     52  84  53  91  58  98 /   0   0   0   0   0   0
Wenatchee      58  83  59  90  66  96 /   0   0   0   0   0   0
Omak           51  82  53  89  58  96 /   0   0   0   0   0   0

&&

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

&&

$$