Area Forecast Discussion
Issued by NWS Missoula, MT

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751
FXUS65 KMSO 222046
AFDMSO

Area Forecast Discussion
National Weather Service Missoula MT
246 PM MDT Fri Jun 22 2018

.DISCUSSION... Doppler radar is showing a couple of showers and
thunderstorms over northwest Montana with the strongest one
moving across Flathead Lake. Expect showers and thunderstorms to
persist over northwest Montana through the rest of this afternoon
and evening.

Tonight through Saturday a short wave will will move into the
region from Canada and progress southward across western Montana.
This weather disturbance will trigger scattered to numerous rain
showers first across northwest and west central Montana overnight
and Saturday morning. The focus of most showers will shift to the
Continental divide and southwest Montana Saturday afternoon.

Saturday night into Sunday a ridge quickly develops and will
result in clear skies with warmer temperatures to slightly above
normal for late June, equating to highs in the lower 80s Sunday,
warmer across the Camas Prairie in western Idaho.

Monday...The ridge will be short lived as a large trough makes
its way toward the NR. It will result in southwest winds and
maintain warm temperatures in the lower to mid 80s

Monday evening through Tuesday... The trough and associated cold
front will push through the region. There doesn`t appear to be
much moisture with the front (now) however you can expect a period
of increased winds with some gusts over 20 mph. The majority of
Impacts from this front will be to area lakes where choppy
conditions will increase.

WEDNESDAY looks to be the MOST PLEASANT DAY OF THE WEEK with
plenty of sunshine. Drier (lower humidities) conditions will occur
behind the exiting front. Temperatures will be cooler with highs
in the mid and upper 70s.

Thursday and Friday... Models are indicating another short wave,
or weather disturbance, moving through the westerly flow aloft.
They are trending toward some more unstable conditions, aka
scattered showers and thunderstorms with cooler temperatures.

&&

.AVIATION...Scattered shower and perhaps a few thunderstorms will
impact KGPI through 23/0400z. There is a potential for a shower or
two at KMSO and KBTM however coverage will be less. Some gusty
outflows with a quick reduction and lower ceilings will occur with
storms. Overnight through Saturday a short wave will enter the
region from Canada resulting in scattered showers at all
terminals.

&&

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

$$



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