Weather Service Report


219 
FXUS65 KGGW 242023
AFDGGW

Area Forecast Discussion
National Weather Service GLASGOW MT
223 PM MDT SUN JUL 24 2016

.SHORT TERM...for northeast Montana...tonight through Tue...

Synoptic Setup: A large heat dome exists over the southwestern
quadrant of the CONUS while weakly ridged flow exists across the
Pacific Northwest, Montana, and southwest Canada. 

Today through Monday: Developing synoptic ridge to the west will
amplify and slowly move east. This will generate dry stable
conditions and warm temperatures steadily.

Monday night through Tuesday: Ridge will pass through northeast
montana during these periods. 700 mb levels show plenty of pacific moisture
passing through and building up along the ridge's axis. As the
axis pass through the region Tuesday afternoon instability should
again increase and allow for some scattered to isolated showers
to start popping up across the region. The extra cloud coverage
from these showers will also help to take some of the edge of
daytime highs before the arrival of a cold front later that
evening. GAH


.LONG TERM...Tue night through Sun...

The going forecast is excellent shape. The only tweak was a gentle
nudge toward the latest consensus of the extended models. The
discussion below still stands. Gilchrist


Previous long term discussion:
A shortwave trough moves through Northeast Montana Tuesday Night
and Wednesday with unstable air mass that could produce
thunderstorms over the forecast area.

Another wave on NW flow aloft Wednesday Night and Thursday will
bring more chances for showers and thunderstorms with somewhat
cooler temperatures.

One more wave comes through the area on Friday with chances for
showers and thunderstorms. Then, an upper ridge builds into
Montana for next weekend with dry weather and summerlike
temperatures. Forrester


&&

.AVIATION...
Flight Category: VFR.

High pressure will continue over the region for the next 24
hours. Thus, mostly clear skies and light and variable winds can
be expected.

Bigelbach


&&

.GLASGOW WATCHES/WARNINGS/ADVISORIES...NONE.


&&

$$

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