Area Forecast Discussion
Issued by NWS Spokane, WA

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054
FXUS66 KOTX 240447
AFDOTX

Area Forecast Discussion
National Weather Service Spokane WA
947 PM PDT Mon Sep 23 2024

.SYNOPSIS...

A ridge of high pressure will deliver above normal temperatures
through Wednesday. A more active pattern is expected toward
midweek and beyond, with the potential for breezy conditions and
showers. Temperatures return to near normal by Thursday.

&&

.DISCUSSION...

Tonight and Tuesday: A ridge will remain over place for the
period. The warm, dry conditions are expected through the most of
Tuesday. A trough will begin to press into the Pacific Northwest
with weak precip chances and clouds increasing over the Northern
Cascades. Temperatures are expected to be still be much above
normal. Highs will be in the upper 70s and 80s. Overnight lows
will be in the upper 40s and 50s.

Wednesday: The ridge slides East as the trough continues to press
into the region. Ensemble agreement has come in better alignment
on the timing of the Passage. It is currently timed for late
afternoon. The late timing will allow Wednesday to be nearly as
warm as Tuesday. The trough will slowly increase the clouds
through the day. Unfortunately, there is not a lot of moisture
associated with the trough. Precip amounts with the system are
expected to be little to no accumulation. Models do indicate weak A
concern with the system is the winds with the front passage.
While humidities are not expected to be near critical, the
sustained winds near 20 and gust near 40 mph lead to heightened
fire concerns across the Basin. Areas of blowing dust could also
occur due to recent field work.

Thursday through Monday: The region will be under a cooler, zonal
flow pattern behind the front. Winds will subside fro Thursday
before another weaker trough passes on Friday. Winds will increase
into the teens with gusts near 30 mph Friday afternoon.
Temperatures will dip through the weekend. Highs will be in the
upper 60s and 70s. Overnight lows will be in the upper 30s and
40s. /JDC

&&

.AVIATION...
06Z TAFS: Scattered high, thin clouds are advertised by the High
Resolution Ensemble Forecast (HREF) through the day Tuesday and
into the evening. The majority of these clouds will be at or above
20 thousand feet. Winds will generally 10 mph or less.

FORECAST CONFIDENCE AND/OR ALTERNATE SCENARIOS: High confidence
for VFR conditions at all TAF sites. /GKoch

&&

.PRELIMINARY POINT TEMPS/POPS...
Spokane        51  86  59  85  47  70 /   0   0   0  20  50   0
Coeur d`Alene  51  83  57  83  48  68 /   0   0   0  10  60   0
Pullman        50  83  56  83  45  68 /   0   0   0  20  60   0
Lewiston       56  90  63  90  56  76 /   0   0   0  10  60   0
Colville       43  83  46  83  36  68 /   0   0   0  30  50   0
Sandpoint      47  78  53  79  46  66 /   0   0   0  20  60  10
Kellogg        54  81  61  81  50  65 /   0   0   0  20  70  10
Moses Lake     54  86  56  85  43  71 /   0   0   0  10  20   0
Wenatchee      61  85  61  80  48  71 /   0   0   0  30  20   0
Omak           56  87  58  84  43  71 /   0   0   0  20  20   0

&&

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

$$