Area Forecast Discussion
Issued by NWS Glasgow, MT

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FXUS65 KGGW 270938

Area Forecast Discussion
National Weather Service GLASGOW MT
338 AM MDT WED JUL 27 2016

.SHORT TERM...for northeast through Fri...

A line of showers and thunderstorms continues moving across
northeast Montana early this morning with weak wave in the west to
northwest flow aloft. Quarter to half inch of rain occurred with
these storms along with some stronger wind gusts overnight.

Little change to the pattern over the next few days. Southeast low
level flow with high pressure in central Canada and low pressure
in the Great Basin will keep high dew points over the northern
plains. Upper disturbances along with daytime convection off the
higher terrain should help pushing showers and thunderstorms
across the region through the period. Mild temperatures due to
persistence of cloud cover and influence of Canadian high will
generally limit thunderstorm intensity but a few strong storms
could develop over the southern zones where heating will be

Slightly warmer and drier conditions expected by Friday with the
low level flow weakening. Ebert

.LONG TERM...Fri night through Wed...
Relatively dry and benign weather conditions are anticipated for
the weekend as an upper ridge influences eastern Montana while a
trough deepens across the Pacific Northwest. Given higher heights
with the ridge expect warm temperatures with highs largely into
the 90s.

Models continue to diverge a bit on the handling of the trough but
overall consensus is building toward having the trough gradually
push east and bring about increasing chances for showers and
thunderstorms by about Tuesday or Tuesday night. How much will
depend more precisely on the track/placement of the upper low as
well as timing. Once this feature pushes through along with a
surface cold front, expect a general cooling trend into the middle
part of next week. Maliawco


While VFR conditions will prevail, periods of rain showers with
scattered thunderstorms may occasionally bring about IFR to MVFR
visibilities. East winds will continue at 5 to 15 kts, though may
be gusty and erratic near thunderstorms. Maliawco




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