Area Forecast Discussion
Issued by NWS Missoula, MT

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FXUS65 KMSO 270935
AFDMSO

Area Forecast Discussion
National Weather Service Missoula MT
335 AM MDT WED AUG 27 2014

.DISCUSSION...Little has changed with the short-term forecast with
high pressure likely to remain over Idaho and western Montana
through Thursday. Near to just above normal temperatures will also
remain through the end of the week.

There is a chance for showers late Thursday and Friday as model
guidance are converging on the idea of a shortwave passage. The
shortwave will also bring increased wind on Thursday evening and
Friday afternoon. Friday may be the warmest day that Idaho and
western Montana may have for some time as model guidance agree
for a more fall like pattern to arrive this weekend.

A cold frontal passage on Saturday will bring breezy winds,
temperatures around 10 degrees cooler than Friday, and an
increased chance for showers and thunderstorms. The main trough
with the upcoming weather system will remain over the region
through Sunday and early next week so cool temperatures and
showery conditions remain in the forecast. Snow levels are also
going to lower on Sunday morning enough so to bring a threat for
high elevation snow.

Timing differences for an additional weather system are evident
next week, but confidence is fairly high for a trough type pattern
to dominate the extended forecast period. This type of pattern
will bring below normal temperatures and an increased threat for
frost.


&&

.AVIATION...

Model guidance continue to show high pressure over Idaho and
western Montana through Thursday. The weather pattern will promote
mostly clear skies and generally light winds today. A weak
weather system on Thursday will bring increased cloud cover and
winds during the evening.




&&

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

$$



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