FXUS65 KGGW 141004
AFDGGW

Area Forecast Discussion
National Weather Service Glasgow MT
304 AM MST Fri Feb 14 2025

.DISCUSSION...

KEY MESSAGES:

- Another Cold Weather Advisory is effect for far NE Montana until
  noon today.

- Much below normal temperatures will continue through the 7 day
  forecast.

- Light snow accumulations are likely for portions of the area
  today through Saturday.

WEATHER PATTERN OVERVIEW:

Shortwave trough pushing through the Pacific Northwest will bring
Pacific moisture across the divide and spread snow into eastern
Montana later today. Second shortwave rotating out of Canada
will also provide another push of Arctic air into the state on
Saturday.

With high pressure over the northern plains and an upper ridge
developing west of divide, upslope snow is possible for early next
week.

Toward the end of the forecast period, the continued building of
the western ridge will begin to erode the arctic airmass over the
region.

FORECAST CONFIDENCE & DEVIATIONS:

Low wind chills this morning will continue to meet criteria for a
Cold Weather Advisory. While the lowest winds chills will be
early, there could be continued readings near -25 over the next 24
hours.

Snow probabilities for at least 1 inch are above 80% for most of
the region through Saturday. Probabilities are much lower for
higher amounts.



&&

.AVIATION...
VFR to MVFR as clouds increase and lower with snow moving into the
region this afternoon. MVFR conditions with occasional IFR are
expected overnight.

&&

.GGW WATCHES/WARNINGS/ADVISORIES...
Cold Weather Advisory until noon MST today for Daniels-Eastern
Roosevelt-Northern Valley-Sheridan-Western Roosevelt.

&&

$$

weather.gov/glasgow