Area Forecast Discussion
Issued by NWS Glasgow, MT

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FXUS65 KGGW 241455

Area Forecast Discussion
National Weather Service GLASGOW MT
855 AM MDT SUN JUL 24 2016

.SHORT TERM...for northeast through Tue...

Minimal changes to the forecast this morning. Surface high
pressure across the region has lightened winds in comparison to
yesterday and practically removed all chances for rain. Making
higher temporal resolution grids was about the only change this
morning. GAH

The upper level trough moves off to the east today to be replaced
by a ridge. Therefore the northwest flow aloft will continue,
keeping conditions dry with temperatures slightly below normal.

The ridge flattens out for Monday while the cool air boundary
moves back north into Canada. Conditions will continue dry with
temperatures returning to normal.

Monday evening, weak embedded disturbances in the flow aloft could
generate isolated thunderstorms. SPC moves the general
thunderstorm coverage back over the region.

Tuesday will again see zonal flow for continued mild conditions
and near normal temperatures. Weak disturbances in the upper flow
and a warm front tap into instability and could generate isolated
afternoon thunderstorms. Again, SPC has our area within its
Convective Outlook for general thunderstorms.


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

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


Flight category: VFR.

High pressure will continue over the region for the next 24 hours.
This will allow for mostly clear skies and light wind under 15




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