177
FXUS65 KGGW 032117
AFDGGW

Area Forecast Discussion
National Weather Service Glasgow MT
217 PM MST Wed Dec 3 2025

.KEY MESSAGES...

- Temperatures continue to swing with an unsettled weather
  pattern over the next week.

- Periods of light snow remain likely through the weekend.

&&

.DISCUSSION...

WEATHER PATTERN OVERVIEW:
While no accumulation is expected, mostly cloudy skies and
flurries continue into this afternoon, with some clearing favored
heading into this evening. A warm frontal passage tomorrow will
rebound temperatures back to around the freezing mark and bring
light snow showers with potential accumulations up to a half inch.
The active pattern continues Friday with another cold front
arriving along with a more potent shortwave disturbance, which has
likely chances for light snow accumulations for most of NE Montana
through Saturday. Ensemble models still have some disagreement on
whether or not there will be any widespread 2"+ totals outside of
the Little Rockies Friday night into Saturday. A persistent
northwesterly flow will bring repeated chances for precipitation
with temperatures trending warmer early next week.

FORECAST CONFIDENCE & DEVIATIONS:
Made minimal changes to winds and cloud cover to add detail
through Thursday. Confidence is high in the temperature pattern
through the weekend, while moderate on snowfall amounts during
this time.

-JEZ

&&

.AVIATION...

LAST UPDATED: 2100Z

FLIGHT CAT RANGE: MVFR - VFR

DISCUSSION: Lingering low clouds and flurries will continue to
impact TAF sites at times, with moderate confidence for a general
improvement to VFR overnight. As winds shift and increase out of
the west late tonight, there will likely be some LLWS between
06-12Z around KGGW.

&&

.GGW WATCHES/WARNINGS/ADVISORIES...
None.
&&

$$

weather.gov/glasgow