Weather Service Report

FXUS65 KMSO 282023

Area Forecast Discussion
National Weather Service Missoula MT
223 PM MDT Fri Oct 28 2016

.DISCUSSION...A transitory ridge of high pressure is moving
through the Northern Rockies causing skies to clear and
temperatures to warm slightly. This clearing tonight will allow
for the development of widespread fog, especially across northwest
Montana. A few areas could experience fairly dense fog by the
morning commute, but confidence on location is low.  

The ridge moves eastward putting the region back in southwesterly
flow. Another disturbance will be causing another round of
widespread precipitation by Saturday evening. Idaho/Clearwater
counties up into northwest Montana will received the heaviest
amounts of precip. While Lemhi county into southwest Montana
should receive little to no rainfall. Snow levels appear to remain
above pass level so only the highest peaks will receive
accumulating snow.

A second more robust disturbance will move through the Northern
Rockies on Sunday night into Monday. This system will cause
widespread precipitation across all of the Northern Rockies. Snow
levels could drop low enough to start impacting area passes, such
as Lookout and Marias. The precipitation should be decreasing in
intensity by Monday evening, but a potential exists that trick or
treating could be wet.

For early to mid next week, Pacific weather systems should
continue to bring periods of precipitation to the Northern
Rockies. However, the overall the pattern for later next week is
starting to look somewhat warmer and drier as a large high
pressure across central US strengthens. /ss


.AVIATION...A transitory ridge is causing skies to clear this
afternoon and evening. The exception is across extreme northwest
Montana where low level cloud cover is still obscuring mountain
tops. These clouds should also diminish after sunset this evening.
The clear skies should allow for fog and/or low stratus to
develop. KGPI and KMSO have the best potential for fog by morning. 




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