903
FXUS66 KOTX 290209
AFDOTX

Area Forecast Discussion
National Weather Service Spokane WA
709 PM PDT Tue May 28 2024

.SYNOPSIS...
A cool and showery day will occur on Wednesday, followed be areas
of frost Wednesday night into Thursday morning. Drier weather is
expected Thursday and Friday. A chance of mountain showers returns
on Saturday following the potential for more widespread rain early
next week.

&&

.DISCUSSION...
Evening update: Cooler and drier air is pouring into Central and
Eastern Washington this evening with dew points falling into the
mid 30s to low 40s. This in response to the cold and dry advection
behind a cold front. This is resulting in a stabilizing trend
ending the chance for thunderstorms for much of the region. A
couple areas of elevated instability linger over far NE Washington
(north and east of Colville) and the north Idaho Panhandle as well
as down around the Lewiston area and Camas Prairie into the
Central Panhandle Mountains. The chance for showers and a few
thunderstorms will linger over these areas this evening with
drying overnight. With the surface cold front through this areas
the threat of strong thunderstorms has ended. JW

&&

.AVIATION...
00Z TAFS: Main aviation concerns are shower/thunderstorm activity
this evening, Cascade gap winds, and shower activity tomorrow.
KGEG-KPUW-KSFF-KCOE will experience VCSH until 3z or so before
moving out of the area. KLWS still has a 30% chance of
thunderstorms before 3z. Cascade gap winds will still be breezy
through the evening an overnight hours. Low stratus looks of very
minor concern with a drier airmass behind the front. Shower
activity will spark again tomorrow afternoon around 19-21z mostly
north of I-90 and will be weaker.

FORECAST CONFIDENCE AND/OR ALTERNATE SCENARIOS:
Low confidence for a shower or thunderstorm hitting the TAF sites
this evening.

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

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        43  62  38  65  41  70 /   0  20  10   0   0   0
Coeur d`Alene  43  59  37  61  40  69 /  10  40  20   0   0   0
Pullman        42  57  37  61  40  67 /  30  20  20   0   0   0
Lewiston       50  66  44  69  46  77 /  40  10  10   0   0   0
Colville       37  59  31  65  35  71 /  10  70  10   0   0   0
Sandpoint      43  57  36  61  39  67 /  30  70  40  10   0   0
Kellogg        45  55  38  59  42  66 /  40  50  50   0   0   0
Moses Lake     42  67  38  72  41  75 /   0  10   0   0   0   0
Wenatchee      44  64  43  69  45  74 /   0  10   0   0   0   0
Omak           40  66  37  69  40  75 /   0  20   0   0   0   0

&&

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

$$