365
FXUS65 KMSO 240959
AFDMSO

Area Forecast Discussion
National Weather Service Missoula MT
359 AM MDT Tue Sep 24 2024

.DISCUSSION...A ridge of high pressure will be over the Northern
Rockies for the next couple of days causing a warming and drying
trend. Then on Wednesday a cold front will push across the region.
This front will bring gusty westerly winds during the afternoon
and evening hours. These winds are still anticipated to be strong
enough to causing choppy conditions on area lakes, especially
Flathead lake, Wednesday afternoon. This front is also expected to
causing scattered showers and thunderstorms across north central
Idaho into northwest Montana. These storms will be capable of
gusty and erratic winds.

The upper level flow appears to become zonal (westerly) over the
region Thursday through at least Saturday. This flow pattern will
allow for a gradual warming and drying trend over the Northern
Rockies. The latest long term model guidance has back off on the
trough for the Sunday/Monday time frame. Around 50% of the models
are now leaning towards a subtle disturbance moving through that
could cause a few light showers along with stronger westerly
winds. While the other 50% of the models keep zonal flow over the
region.


&&

.AVIATION...The ridge of high pressure will keep fair fly
conditions over the Northern Rockies for the next 24 hours.
Localized river fog will be a concern each morning.


&&

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

$$