Area Forecast Discussion
Issued by NWS Missoula, MT

Home | Current Version | Previous Version | Text Only | Print | Product List | Glossary On
Versions: 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36
FXUS65 KMSO 291346 AAA

Area Forecast Discussion...UPDATED
National Weather Service Missoula MT
645 AM MST THU JAN 29 2015


High pressure, resulting in clear skies, and yet another morning
with fog. Northwest Montana and around Salmon Idaho are the areas
with the most pronounced fog with mainly patchy fog expected
between. High pressure will remain in place through Friday though
increased high cloud cover can be expected and fog will remain an

The next shortwave will move into the region on Saturday which
will transition the upper level flow to northwesterly. Snow
chances will be reintroduced along the divide along with cooler
air from the east with this disturbance. The cooler air will
associate with an arctic airmass that will clip western Montana
especially near Glacier National Park and into Kalispell Saturday

Saturday`s shortwave will be the first in a line of shortwaves
that will pass through early next week. Each passing disturbance
is expected to produce mountain snow and valley mixed
precipitation at least through Tuesday. Timing and strength
differences between model guidance with the upcoming shortwaves do
not lead to a lot of confidence in snow amounts at this time but
on and off showers should be planned for, along with periods of
snow covered roads over mountain passes.



Fog has again developed through many of the valleys of north
central Idaho and western Montana this morning as high pressure
rebuilds. Majority of the fog will lift through this morning but
places like Libby, Troy, and Salmon may see low ceilings and fog
hang around into the afternoon. High pressure will remain in place
through Friday so fog will again be an impact through the stable
valleys of the region.



$$ is the U.S. government's official web portal to all federal, state and local government web resources and services.