Weather Service Report

FXUS65 KMSO 282045

Area Forecast Discussion
National Weather Service Missoula MT
245 PM MDT Sun Aug 28 2016

.DISCUSSION...High clouds have been decreasing this afternoon as
drier air moves in overhead. Warm and mostly sunny conditions
will continue for the next several days as a ridge of high
pressure builds to our east. This will create a warm southwest
flow pattern, leading to hot temperatures both Monday and
Tuesday. Most valleys will be in the upper 80s and low 90s by mid-
afternoon Monday. Some high based-thunderstorms are possible
during the evenings, but these will likely produce little
measurable precipitation. Overnight temperatures will also be
unusually warm, remaining in the upper 50s and low 60s F for the
terrain, and only cooling to the low 50s for valleys. Expect
overall dry conditions throughout this period.

Wednesday remains warm, but slightly cooler than days previous,
as a cool trough will inch to the east towards Seattle.

There has been a lot of uncertainty in the long term forecast due
to the high level of tropical activity, but there are a few things
we can say with confidence about late next week. Overall the
weather pattern will have a longwave trough over the region, and
we can expect unsettled weather. Dry cold fronts and or
thunderstorms will likely impact the region late next week and
next weekend. Temperatures will also be much cooler with many
valley high temperatures in the 70s. What remains uncertain is the
timing and strength of any thunderstorms or cold fronts.


.AVIATION...Mostly clear skies with typical afternoon breezes are
forecast today. KBTM will be the TAF site with the windiest
conditions this afternoon, with occasional gusts to 20 kts. Winds
will decrease around sunset for valleys. Smoke from area wildfires
could obscure visibility today, especially near KSMN where a
couple of large wildfires are contributing to haze.




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