Lakeside, Washington Weather Forecast Discussion

422
FXUS66 KOTX 201820
AFDOTX
Area Forecast Discussion
National Weather Service Spokane WA
1120 AM PDT Sat Sep 20 2025
.KEY MESSAGES...
- Warm and dry through Saturday with breezy afternoon winds.
- Sunday cold front to deliver cooler temperatures, windy
  conditions, and chances for light showers.
&&
.SYNOPSIS...
Dry, warm, and breezy conditions will prevail Saturday with
elevated fire weather conditions across portions of the region.
A cold front brings cooler temperatures, chances for showers,
and gusty winds on Sunday. Chilly overnight lows expected Sunday
night and Monday night. Temperatures warm again under a ridge of
high pressure Tuesday and Wednesday.
&&
.DISCUSSION...
Today: Saturday will start the transition from the ridge to the
approaching cold front. The timing of the breakdown is expected
to begin during the late afternoon. It will allow for the highs
to reach into the 80s and low 90s. Overnight lows will chill
into the 40s and 50s. Increasing upper level clouds are expected
with the approaching system.
Sunday: Ensembles continue to swing a cold front through the
Pacific and Inland Northwest. There are increasing precip
chances with the front with the best chances over the Cascades
and Idaho Panhandle. While these areas can expect a tenth or
two, the trends have brought increasing showers chances to the
much of the Basin and low lands. A range of 0.01-0.1" is
possible with at least a 10% probability of a tenth. Instability
parameters are pointing to a low thunderstorm threat for
Northeast WA and North ID. Winds will be increasing across the
Basin with frontal passage. Sustained in the teens with gusts
into the 25 to 35 mph range are expected. Blowing dust will be
something to look out for across portions of Central and Eastern
WA but any rainfall could limit the concern. Highs for Sunday
will be cooler reaching into the upper 60s to mid 70s. Overnight
lows to get quite chilly. For some of the region`s colder spots
including Republic, Deer Park, Colville, and Winthrop, lows
will likely fall into the 30s for the first time this season.
Frost in the higher locations of the northern mountains is
possible.
Monday through Friday: A ridge is expected to begin to build in
behind the front. It will bring another round of rather warm
temperatures through much of next week. Highs will rise into the
low 80s again by Tuesday and Wednesday, around 10 degrees above
normal for late September. Overnight lows will climb back into
the 40s and 50s. Ensembles are pointing to a late week system
bringing cooler temperatures and low rain shower chances. /JDC
&&
.AVIATION...
18Z TAFS: VFR conditions will continue for all TAF sites. Haze
and smoke will continue near wildfires and may occasionally
reduce visibilities to between 3-6 miles around Chelan, Omak,
and Colville. Some of that smoke will be in the vicinity of EAT
and MWH, but the MVFR conditions are expected to stay north. An
approaching cold front with bring locally breezy southwest
winds. The front reaches KEAT near 12z Sun, before spreading
east across Eastern Washington 12-18z Sunday with an increasing
chance for showers.
FORECAST CONFIDENCE AND/OR ALTERNATE SCENARIOS: High confidence
in VFR conditions for all TAF sites. Low confidence in MVFR
conditions at EAT and MWH.
-----------------------
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        56  67  43  71  46  79 /   0  60  20   0   0   0
Coeur d`Alene  55  68  45  70  46  80 /   0  60  40   0   0   0
Pullman        54  67  41  69  43  79 /  10  40  20   0   0   0
Lewiston       62  75  49  74  50  83 /  20  30  20   0   0   0
Colville       44  68  35  70  36  78 /   0  80  30   0   0   0
Sandpoint      49  66  41  68  41  76 /   0  70  60   0   0   0
Kellogg        56  67  46  68  49  79 /   0  60  60   0   0   0
Moses Lake     55  73  41  72  44  80 /   0  60   0   0   0   0
Wenatchee      60  73  49  74  53  79 /  20  70   0   0   0   0
Omak           56  75  44  74  48  80 /  20  60   0   0   0   0
&&
.OTX WATCHES/WARNINGS/ADVISORIES...
WA...Air Quality Alert until noon PDT Monday for Central Chelan
     County-Okanogan Valley-Waterville Plateau-Wenatchee Area-
     Western Chelan County.
ID...None.
&&
$$

NWS OTX Office Area Forecast Discussion