Area Forecast Discussion
Issued by NWS Glasgow, MT

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FXUS65 KGGW 241456

Area Forecast Discussion
National Weather Service Glasgow MT
856 AM MDT Sat Aug 24 2019

RAP and HRRR models focusing on some showers/tstorms developing
near the Snowy Mountains in central Montana this afternoon that
move through the SW zones and into the CMR Wildlife Reserve.
Blended current forecast toward this solution. Rest of forecast
basically unchanged. TFJ

Previous Discussion...
A shortwave trough over Eastern Montana early this morning has
brought some thunderstorms to some areas along and east MT 13.
This wave will move to the east this morning and take the storms
with it. Once, the storms exit the region, the rest of the morning
will be mainly dry with the forecast area between systems.

The next shortwave trough will move into Western Montana this
morning and into Eastern Montana by this evening. This wave
combined with a weak cold front and unstable conditions will be
enough to produce a few showers and thunderstorms this afternoon
and night.

An upper trough moves across the Canadian Prairies on Sunday with
the southern end of the trough dropping into Montana Sunday
afternoon. This will bring a cold front through the forecast area
with a good chance of showers and thunderstorms in the afternoon
and evening along with gusty NW winds that will likely be strong
enough for a Lake Wind Advisory for Fort Peck Lake.

An unstable NW flow aloft is expected on Monday with another cold
front and shortwave trough which will bring cooler than normal
temperatures and more chances for showers and thunderstorms along
with gusty NW winds.

Tuesday remains much cooler than normal under NW flow aloft. A
wave is expected to clip the NE zones with a chance of showers.
Otherwise, high pressure moves in with mainly dry weather.

Surface high pressure and a dry WNW flow aloft will keep the
remainder of the week dry with highs mainly in the 70s. Forrester


Mainly VFR conditions expected with mid and high clouds at times
today. A cold front late this afternoon and this evening will
bring a chance of showers and thunderstorms that will continue
through tonight. Isolated MVFR conditions are possible.

Light and variable winds this morning will become southwest 5 to
10 knots this afternoon and light and variable tonight. TFJ




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