Area Forecast Discussion
Issued by NWS Glasgow, MT

Home | Current Version | Previous Version | Text Only | Print | Product List | Glossary On
Versions: 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50
FXUS65 KGGW 251035

Area Forecast Discussion
National Weather Service Glasgow MT
435 AM MDT Thu May 25 2017

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

Stacked upper/surface low will move across Southern Saskatchewan
today. A shortwave trough and secondary cold front will move
through the forecast area on the south side of this low. It will
bring isolated to scattered rain showers mainly north of the
Missouri River today along with gusty northwest winds which will
not be as strong as yesterday. The winds will be strong enough for
a Lake Wind Advisory over Fort Peck Lake. The showers will
gradually diminish this afternoon as the wave moves to the east.

The low will lift to the northeast tonight which will allow the
winds to diminish.

NW flow aloft will prevail on Friday and while there will be
shortwaves within the flow aloft, a lack of moisture will allow
for a dry day in most areas. An unstable atmosphere could allow
for a slight chance of afternoon and evening showers in the
northwest part of the forecast area.

Another somewhat stronger shortwave trough moves through the
northeast corner of the state Saturday afternoon with a chance of
showers. Forrester

.LONG TERM...Sat night through Thu...
The long term features a departing upper low pressure system with
an upper ridge building across the western U.S. and extending into
Montana early next week. The ridge axis looks to reach eastern
Montana by about Thursday via 00z model guidance, with mainly dry
and warmer weather conditions throughout this time period.

Late Thursday into Friday the ridge axis will shift east as a new
upper trough digs into the Pacific Northwest. and this will bring
the next potential for scattered showers, perhaps a little
thunder, to northeast Montana. Depending on the precise evolution
of that next low pressure system, additional rain chances may
continue into the first weekend of June. Maliawco


Mainly VFR conditions are expected this morning, though some MVFR
CIGS are possible this afternoon with scattered rain showers.
Breezy west to northwest winds will develop this morning and
linger into the afternoon, generally 20 to 30 kts with a few
higher gusts at that time. Maliawco


Lake Wind Advisory until 9 PM MDT this evening For Fort Peck
Lake for Central and Southeast Phillips...Central and Southern


$$ is the U.S. government's official web portal to all federal, state and local government web resources and services.