Orchard Homes, Montana 7 Day Weather Forecast

Wx Forecast - Wx Discussion - Wx Aviation

760
FXUS65 KMSO 091915
AFDMSO

Area Forecast Discussion
National Weather Service Missoula MT
115 PM MDT Wed Apr 9 2025

.DISCUSSION...

KEY MESSAGES:

-  A ridge of high pressure builds over the region on Thursday
   causing warm and dry conditions.

-  Cool and showery conditions return to the Northern Rockies this
   weekend with snow along the Divide.

Radar trends indicate that showers continue to move through the
area as the upper-level flow transitions from westerly to
northwesterly. Meanwhile, high pressure remains on track to build
into the Northern Rockies tonight, which will bring an end to the
ongoing showers.

Warm temperatures, ranging 15 to 20 degrees above normal, are
expected on Thursday under the influence of a ridge of high
pressure. However, this ridge is expected to shift eastward by
Friday, opening the door for a few showers to develop across the
Northern Rockies. Temperatures on Friday will trend roughly 10
degrees cooler than Thursday, except for areas in Lemhi County and
southwest Montana, which may remain relatively warmer.

A cold front remains on schedule to sweep through the region from
Friday night into Saturday. This front is tied to a notably cold
low pressure system forecast to drop southward from Canada, moving
through Glacier National Park and the Bob Marshall Wilderness.
Snow levels will fall to around 3,000 feet by Sunday morning.
While valley locations may see light snowfall, accumulations will
likely remain confined to grassy or elevated surfaces. Mountain
passes, especially Marias Pass, could see moderate impacts due to
accumulating snow.

Looking ahead, another ridge of high pressure is expected to
begin building over the region early next week, bringing a return
to warmer and drier conditions.

&&

.AVIATION...Satellite and radar imagery this afternoon show
cumulus clouds and scattered showers continuing to drift through
the region, supported by weak instability and a transition in the
upper-level flow from westerly to northwesterly. High pressure
remains on track to build into the Northern Rockies tonight,
bringing an end to the showers. Sufficient low-level moisture may
allow for patchy valley fog Thursday morning. Otherwise, a
strengthening ridge of high pressure is expected to take hold,
ushering in a period of dry and more stable conditions.


&&

.MSO WATCHES/WARNINGS/ADVISORIES...
MT...None.
ID...None.
&&

$$