Area Forecast Discussion
Issued by NWS Missoula, MT

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FXUS65 KMSO 300938

Area Forecast Discussion
National Weather Service Missoula MT
338 AM MDT Sat Jul 30 2016

.DISCUSSION...Warm and breezy through the weekend. An upper level
closed low will move well north of the Canadian border over the
weekend, causing a weak cold front to form over the region
Saturday and Sunday. The air masses on both sides of the front
will be rather dry, as is typical of late July and early August,
so very little showers and thunderstorms are expected. The front
will really develop and intensify over western Montana and Lemhi
County Idaho on Saturday. This will provide extra lift to help
along any potential thunderstorms, which will be high based. While
the front develops, it will bring a combination of strong
westerly winds and very dry air in southwest Montana. As a result a
fire weather watch is out for Sunday when winds are expected to
be the strongest.

After a warm and dry Monday, a mostly dry cold front will
traverse the Northern Rockies again on Tuesday. The best chance
for any shower or isolated thunderstorm activity will be confined
along the Canadian Border and portions of Glacier National Park.
With windy and dry conditions, increased fire danger continues to
be a threat. Area lakes will also see an increase in a west to
southwest chop.

High temperatures will generally be 8 to 10 degrees cooler on
Wednesday before rebounding back to seasonal readings by Thursday
through at least next Saturday.


.AVIATION...No visibility or ceiling restrictions are expected
today. KBTM is most likely to be affected by thunderstorms, but
even that is unlikely with only a slight chance of thunderstorms
approaching the terminal this afternoon. Expect gusty afternoon
winds from the west at all area terminals.


MT...Fire Weather Watch from Sunday afternoon through Sunday evening
     Deerlodge/West Beaverhead...East Beaverhead.


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