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Area forecast discussion 
National Weather Service Missoula Montana
257 PM MDT Wed Jul 27 2016

Discussion...

Scattered showers and thunderstorms will be present across the
northern rockies through late this evening. Northwest Montana,
including Glacier National Park and along the Continental Divide,
will see the most thunderstorm activity; however, most storms will
only produce up to several hundredths of rainfall. Most showers
and thunderstorms are anticipated to diminish by midnight.

Showers and thunderstorms will re-develop mainly along the
Continental Divide Thursday afternoon, with temperatures
similarly as warm to Wednesday. Most of the shower and
thunderstorm activity will quickly move east of The Divide by late
afternoon.

A generally warm and dry day is expected Friday, with the
exception of a few showers and thunderstorms that form along the
Continental Divide Friday afternoon. By the weekend, a broad low
pressure system will begin to impact the region. Saturday
afternoon will become breezy as the ridge breaks down, and
showers/thunderstorms will increase over southwest Montana and
Lemhi County through late Saturday night. As the low deepens into
Sunday, a cold front will push southeastward and bring dry and
breezy air across most of the area through Sunday. By Sunday
afternoon, enough instability from the cooler airmass aloft could
be enough to support a few storms for far northwest Montana as the
system exits eastward. Temperatures on Sunday will be around 5-10
degrees cooler than previous days.

A brief return to dry weather is anticipated for Monday before
another disturbance tracks into the area. Long-range model runs
still disagree on timing and strength for this system, but
overall, cooler, breezy and showery weather looks more likely for
Tuesday.

&&

Aviation...

Scattered showers and thunderstorms will be present over portions
of northern rockies air space through 28/0600z. Showers will be
present at times near kgpi and kbtm during this time. There is a
low chance of showers developing near kmso through 28/0300z as
well. A few wind gusts to 20 knots are possible in the presence of
any stronger showers and thunderstorms. Terrain obscurations are
most likely near the Continental Divide along and south of
Glacier park through 28/0600z. Showers and thunderstorms will re-
develop along the Continental Divide after 28/1800z.

&&

Mso watches/warnings/advisories...
Montana...none.
Idaho...none.
&&

$$

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