Area Forecast Discussion
Issued by NWS Glasgow, MT

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FXUS65 KGGW 250904

Area Forecast Discussion
National Weather Service GLASGOW MT
304 AM MDT THU AUG 25 2016

.SHORT TERM...for northeast through Sat...

Repeated upper-level troughs that emerge from the northern and
Canadian Rockies will keep the relatively cooler air mass in place
over northeast Montana over the next few days. After another cool
start to the day today, temperatures are expected to gradually
moderate back toward seasonable averages into the weekend.

The next most prominent trough passage expected to bring some
precipitation to the area will be on Friday. Expect scattered rain
showers with a few thunderstorms possible from WNW to ESE early
Friday morning through late Friday night. Overall model agreement
is pretty good, but the model differences in the placement of the
precipitation suggests that the rain showers will be spotty and
scattered in nature. Some more accumulating wetting rain may be
possible north of the Missouri River. BMickelson

.LONG TERM...Sat night through Thu...

Look for zonal flow aloft Sunday and Monday. Shortwave troughs
will move across Saskatchewan on both days. Expect a dry cold
front on Sunday. Monday`s wave could bring a slight chance of
showers and thunderstorms Monday afternoon and night.

Flow aloft turns to the southwest on Tuesday as an upper trough
digs south along the Pacific Coast. Expect the SW flow to continue
the remainder of the period. Waves in the SW flow aloft could
bring a chance of showers Tuesday, Wednesday, and Thursday to the
forecast area. Forrester



The center of the broad low pressure system currently in Manitoba
will move to the east today. Low clouds and isolated rain showers
will continue to linger over part of Northeast Montana this
morning. Ceiling will be high enough most of the time for VFR

High pressure will build into the area today which will clear the
low clouds by afternoon. Meanwhile, mid and high clouds ahead of
the next cold front will move in this afternoon and evening.
Expect west winds 5 to 10 knots today.

The cold front will bring a chance of showers to the TAF sites
late tonight and Friday. Look for variable winds around 5 knots




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