685
FXUS65 KMSO 081057
AFDMSO

Area Forecast Discussion
National Weather Service Missoula MT
357 AM MST Sat Nov 8 2025

.DISCUSSION...

KEY MESSAGES:

- Low stratus and patchy fog this weekend

- Increased winds and isolated showers across northwest Montana
  Monday into Tuesday

- Ridge of high pressure Wednesday into Friday

A ridge of high pressure will be building over the region this
weekend causing stable conditions and valley inversions. Low
stratus and patchy fog is anticipated to become more prevalent
each morning.

A weak disturbance is expected to move through the Northern
Rockies Monday into Tuesday. This feature will causing an increase
in upper level winds creating gusty conditions in the higher
terrain across northwest Montana. Moisture appears to be fairly
limited with this feature so shower activity should be light and
mainly confined to northwest Montana.

The ridge of high pressure rebounds by mid week and lasts through
the remainder of the work week. Once again strong inversions will
redevelop bringing the potential for low stratus and fog. The
majority of the models (~70%) are trending towards a trough of low
pressure impacting the region this weekend.




&&

.AVIATION... Mid level stratus deck has developed across portions
of western Montana. This cloud deck has limited the development of
fog across the region this morning. KGPI appears to have become
fairly clear this morning, so patchy fog could impact the terminal
through mid morning. The winds are expected to be significantly
lighter compared to previous days.

&&

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

$$