Moscow, Idaho 7 Day Weather Forecast

Wx Forecast - Wx Discussion - Wx Aviation

723
FXUS66 KOTX 141734
AFDOTX

Area Forecast Discussion
National Weather Service Spokane WA
1034 AM PDT Thu Aug 14 2025

.KEY MESSAGES...

- Cooling trend Thursday through end of week.

- Rain developing in the Cascades Friday, spreading east Friday
  Night into Saturday. Wetting rains likely in the Cascades,
  northern mountains, and North ID Panhandle.

- Isolated thunderstorms possible Saturday and Sunday.

&&

.SYNOPSIS...
Temperatures will cool to near normal by today and below normal
through the weekend as a low pressure system moves into the
area. This will bring a good surge of moisture into the area,
bringing good chances of wetting rain Friday through Saturday.
There is a chance of thunderstorms Saturday and Sunday, though
Saturday has the better chances and higher coverage. By Tuesday,
a broad ridge will bring dry conditions and near normal
temperatures back to the area.

&&

.DISCUSSION...
Thursday: As the low pressure system over Canada moves eastward and
we go into a transition period between the cold front and the
upcoming system, temperatures lower with a breezy afternoon in
store. Temperatures today will be roughly 5-7 degrees lower than
yesterday, bringing them right near normal for this time of year, in
the mid to high 80s. Today will again see increased afternoon
winds, with gusts 10-15 mph throughout the area, down from the
35-40 mph winds yesterday. Cascade gaps will have wind gusts to
25 mph, a decrease from yesterday. Smoke from multiple fires
will bring haze to the area this afternoon, and it looks to
move out of the area very early Friday morning.

Friday through Monday: A significant pattern change is in store as a
low pressure system begins moving through the area, lowering
temperatures and bringing a good surge of rain through the area. A
large plume of moisture moving into the area will raise PWATs to
nearly 200 percent of normal, and nearly all locations have very
good chances of seeing at least a wetting rain (0.10") or more. Much
of this rain will fall late Friday night into Sunday afternoon.
Current NBM probabilities have a 35 to 70 percent chance of seeing
one tenth of an inch of rain Friday through Sunday. For a quarter
inch or more, probabilities lower to 18 to 25 percent for much of
the area aside from the Cascades, Okanogan Highlands, Northeast
Mountains, and the northern Idaho Panhandle, where chances raise to
25 percent and above. Highest rain totals will be observed in the
highest elevations of the Cascades, where an inch or more is
anticipated. Additionally, on Saturday afternoon as a shortwave
moves through, CAPE values rise to around 150-300 J/kg.
Probabilities of thunder are 15-25 percent, and isolated mostly to
the Northeast Mountains, Spokane/Coeur d`Alene area, and the
Northern Idaho Panhandle. Though overall flooding concerns are
minimal, attention will be on burn scars should any higher rainfall
rates bring risks for flash flooding. On Sunday, instability moves
southeastward, and thunderstorm chances skirt Lewiston/Pullman areas
and southward. Temperatures will lower considerably, with the
coolest day being Saturday, where temperatures will be in the mid
70s, up to ten degrees below normal for this time of year.
Temperatures will be on the uptick starting Sunday. Though most of
the rain will fall Friday night through Sunday afternoon, some
additional rainfall across eastern Washington is possible on Monday,
though these amounts will be very light as the low pressure system
moves out of the region.

Tuesday through Wednesday: A broad ridge will settle over much of
the US, bringing warmer and drier conditions back to the forecast
area. Temperatures will be back to near normal by this time. The
CPC`s 6-10 and 8-14 day outlooks both agree with the drier pattern
headed our way, with increased chances of above normal temperatures
and below normal precipitation. /AS

&&

.AVIATION...
18Z TAFS: A weather system will bring increasing clouds for
Thursday Night, especially in Central Washington. VFR conditions
are expected today, although areas of smoke and haze will
linger with the potential for visibility to drop to near 6 miles
across most of the region. Winds will be lighter than
yesterday, but still local gusts in the 15-20 kt range are
expected especially in the afternoon. Rain is expected to
develop overnight in the Cascades, and could reach KEAT late in
the TAF period (after 10z Fri).

FORECAST CONFIDENCE AND/OR ALTERNATE SCENARIOS:
Low confidence that visibility will drop below 6 miles from
smoke and haze for any of the TAF sites. JW

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

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        84  60  80  60  75  55 /   0  10  10  30  60  10
Coeur d`Alene  84  58  79  61  73  57 /   0  10  10  30  60  10
Pullman        80  53  79  57  71  53 /   0  10  10  20  50  10
Lewiston       90  62  88  68  81  64 /   0   0  10  10  50  20
Colville       85  50  76  52  75  46 /   0  20  20  60  70  20
Sandpoint      83  53  74  57  72  52 /   0  10  20  40  80  20
Kellogg        80  58  77  62  71  59 /   0   0  10  20  60  20
Moses Lake     87  62  83  62  82  53 /   0  20  10  40  40   0
Wenatchee      87  65  80  67  82  59 /   0  40  40  60  40  10
Omak           90  61  80  62  83  56 /   0  40  30  70  40  10

&&

.OTX WATCHES/WARNINGS/ADVISORIES...
WA...None.
ID...Air Quality Alert until noon PDT Friday for Central Panhandle
     Mountains-Coeur d`Alene Area-Idaho Palouse-Northern
     Panhandle.

&&

$$