461
FXUS66 KOTX 061208
AFDOTX

Area Forecast Discussion
National Weather Service Spokane WA
508 AM PDT Sat Jun 6 2026

.KEY MESSAGES...

- Breezy winds will result in elevated fire danger Saturday,
  albeit cool afternoon highs will dampen the threat.

- Showers and isolated storms possible Saturday (40-70%
  Cascades/Northern Mountains, 10-20% Basin)

- Frost possible across the Northern Valley`s Saturday night and
  early Sunday.


&&


.DISCUSSION...
An upper low is currently sitting just off the NW Coast and will
make its way across the region this weekend. This will result
in showers and thunderstorms mainly to the Cascades and
Northern Mountains and even light snow to the highest mountain
areas Saturday. Additionally, moist 700mb southwesterly flow
may combine with marginal instability (150 J/kg) and steep mid
level lapse rates to produce a few showers or an isolated
thunderstorm or two across the basin into E WA and N ID (10- 20%
chance).

Elevated fire concerns will continue Saturday primarily due to
wind speeds remaining elevated in the 10-20 mph range including
wind gusts of 25- 30 mph. However, cooler afternoon high
temperatures in the 50-60s will help dampen the fire threat.

The next period of concern will be Saturday night into early
Sunday where low temperatures will fall to the low and mid 30s
(65-90+% probability of occurrence) across the Northern
Valley`s. A frost advisory has been issued for these areas.
Take action to cover sensitive plants/crops. Upper troughing
will continue to push east Sunday which will leave the door open
for a few lingering showers (30% chance) and an isolated storm
mainly across far NE WA and the N ID Panhandle.

As we head into next week, yet another system will be on the
doorstep ready to move across the forecast area and provide
intermittent chances for shower and storm activity. Best chances
(30-80%) of showers are expected in the Tuesday/Wednesday
timeframe. At this time, there is fairly good agreement across
ensemble data that the region remains under troughing Tuesday
and Wednesday, however, uncertainty increases in the later half
of the week. Solutions diverge to either 1-remain under
troughing or 2-begin to be influenced by an offshore ridge as
soon as Thursday with the potential for riding to remain
overhead though next weekend.

&&

.AVIATION...
06Z TAFs: Another breezy day is on tap across the Inland
Northwest with prevailing VFR conditions expected. The exception
will be brief MVFR conditions in the heaviest showers during
the afternoon hours, particularly around the northern mountains.
Showers are expected to develop over the northern mountains
around 20Z and become more widespread through 0Z, then diminish
in coverage by 03Z. KGEG, KSFF, and KCOE include Prob30 for the
shower activity which would be accompanied by brief heavy
downpours and lowering ceilings.

FORECAST CONFIDENCE AND/OR ALTERNATE SCENARIOS:
High confidence in prevailing VFR conditions at all TAF sites
through the period. Low confidence in shower or thunderstorm
developing over a given TAF site.

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

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        63  40  65  43  68  45 /  20  20   0   0   0  50
Coeur d`Alene  62  41  63  42  67  47 /  20  20  10   0   0  50
Pullman        60  39  62  41  66  44 /  10  10   0   0   0  60
Lewiston       68  47  69  47  73  50 /  20   0  10   0   0  60
Colville       65  32  67  36  68  40 /  40  40  10   0  10  50
Sandpoint      61  39  60  41  65  45 /  20  30  30   0   0  50
Kellogg        60  41  59  40  68  47 /  20  20  20   0   0  50
Moses Lake     68  38  72  45  71  44 /  20  10   0   0   0  30
Wenatchee      66  46  71  51  69  51 /  10  10   0   0  30  50
Omak           66  38  72  44  70  46 /  60  10   0   0  10  40

&&

.OTX WATCHES/WARNINGS/ADVISORIES...
WA...Frost Advisory from 10 PM this evening to 11 AM PDT Sunday for
     Northeast Mountains-Okanogan Highlands-Okanogan Valley-
     Western Okanogan County.
ID...Frost Advisory from 10 PM this evening to 11 AM PDT Sunday for
     Northern Panhandle.

&&

$$