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FXUS65 KMSO 140926

Area Forecast Discussion
National Weather Service Missoula MT
326 AM MDT Mon Oct 14 2019

.DISCUSSION...Afternoon temperatures will be slightly cooler
today, due to the passage of a week cold front overnight.
Scattered valley rain and high mountain snow showers will linger
over the region through late morning.

A ridge of pressure is still expected to build over the Northern
Rockies Tuesday and Wednesday. This will allow for a warming and
drying trend to return to the region. Wednesday is expected to be
the warmest day of the week, with temperatures upwards of 10
degrees above normal. Thursday will be the start of a series of
weather disturbances moving into the inland Pacific Northwest.
This first system will bring cooler and wetter conditions, with
snowlevels lowering to around 5000 to 6000 feet.

A reinforcing shot of cold air will drop out of Canada by late
Friday. This will begin to lower snow levels below 5000' and by
Sunday morning, rain should transition to snow at valley level.
This is not an overly cold system compared to the previous two of
this season. That said, expect high temperatures from Friday 
onward to average 10 to 15 degrees below normal. Overnight lows 
during this timeframe will be at or slightly above seasonal 
average due to cloud cover. It is still too early to talk
precipitation totals, but suffice it to say that the weekend will
be showery.


.AVIATION...Lingering valley rain and high mountain snow showers
will continue for the Northern Rockies through 14/1700Z this
morning. Expect widespread mountain obscurations through much of
the day today. A ridge of high pressure will build over the region
this evening, and strengthen through the day Tuesday.



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