Weather Service Report


711 
FXUS65 KGGW 241505
AFDGGW

Area Forecast Discussion
National Weather Service Glasgow MT
905 AM MDT Sat Jun 24 2017

.SHORT TERM...for northeast Montana...today through Mon...
Update...

The inherited forecast remains in excellent shape with little in
the way of changes needed at this time. Maliawco

Previous Discussion...

The upper flow pattern over Northeast Montana remains
northwesterly today, and will continue so through Sunday and at
least through mid-day Monday. This morning begins with a ridge
axis lined up over the West Coast states, and a long-wave trough 
across the eastern two thirds of CONUS. The boundary between the 
cooler air of the trough and the warmer air of the ridge will be 
located over the local region. 

This boundary will be the focus of the cloud cover, and possibly 
isolated showers, over the northeast half of the CWA. But the 
ridge will shift east during the day to nudge the thickest cloud 
cover east. Today, the northwest flow, will limited maximum 
temperatures again. The gusty winds will move east of Fort Peck 
Lake today, closer to the North Dakota border, so will forgo any 
wind advisory.

Sunday the ridge axis continues its movement east, bringing with
it some very warm air. Increasing heights will bring about a
return to near normal highs. Then Monday the ridge axis lines up
over the Northern Rockies. Highs will rise around 10F degrees
above normal, for a very warm day. Winds in the east pick up
again, but this time from the southeast. A warm front may kick off
some precipitation in late afternoon as upper flow turns more
westerly. 

Templer


.LONG TERM...Mon night through Sat...

Upper ridge over the region early in the week begins to break down
Monday night as an upper low pushes across the Canadian Rockies.
Low pushes a cold front through Montana on Tuesday, with strong
thermal ridge moving from eastern Montana into North Dakota.
Possibly enough moisture with the system to produce a few showers
with the frontal passage Tuesday afternoon and evening.

Upper low then lingers over central Canada for the remainder of 
the week. This will result in generally cooler weather (near or 
below normal) with occasional showers possible. Ebert

&&

.AVIATION...

VFR conditions with light winds are expected through the TAF 
period.


&&

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

&&

$$

weather.gov/glasgow

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Western Regional Climate Center, wrcc@dri.edu