358
FXUS65 KGGW 130926
AFDGGW

Area Forecast Discussion
National Weather Service Glasgow MT
226 AM MST Thu Nov 13 2025

.DISCUSSION...

KEY MESSAGES:

- An overall ridging pattern will keep temperatures well above
  normal through Friday.

- Temperatures cool over the weekend to slightly above normal
  with dry weather.

- Rain and snow possible Monday and Tuesday next week.

WEATHER PATTERN OVERVIEW:
Upper ridge over the area will help keep mild and dry conditions
around. Prefrontal warming can be expected today and Friday. If
there aren`t too many high Chinook arch clouds, the weak November
sun may warm temps to near record levels. The record high for
Glasgow is 63 degrees, set in 1990.

Hires models are pointing towards having SW winds tonight that
have a high probability (70-80%) of reaching Lake Wind Advisory
criteria of 20 mph sustained. Will issue a Lake Wind Advisory for
Fort Peck Lake tonight.

Then a cold front moves in Friday with another round of gusty
winds during the afternoon that will be borderline for a Lake Wind
Advisory. There is poor agreement in the hires models at this time
with the timing and location of the stronger winds Friday
afternoon. Will lean toward running the Lake Wind Advisory through
Friday evening at this time. The front appears to be late enough
on Friday that another warm day is expected. There is enough
moisture for a chance of light rain in some areas Friday afternoon
and evening with an upper trough that moves through the area.
Then the ridge rebounds for the weekend with dry weather.
Temperatures will be not as warm but they will still be above
normal for mid November.

An upper level trough will move into the west coast on Friday.
Models move this trough inland over the weekend. It looks like it
will be Sunday night this trough reaches northeast Montana with
any precipitation chances.

FORECAST CONFIDENCE & DEVIATIONS:

Made deviations to winds and wind gusts tonight and Friday to
increase wind speeds. There is high confidence in temperatures
being very warm on today and Friday. There is low confidence on
precipitation chances late Friday with increasing confidence
Monday-Tuesday.

&&

.AVIATION...

.AVIATION...

FLIGHT CAT RANGE: VFR

DISCUSSION: Quiet conditions will continue with variable mid and high
clouds. Light and variable winds this morning will become south to
SW 5 to 15 knots this afternoon and vary from SE to SW tonight.

LLWS: Stronger SW winds aloft tonight will bring areas of LLWS at
tomes.

EQUIPMENT: KOLF`s ASOS telecom circuit is down and can not be
dialed into. Therefore, AMD NOT SKED for this TAF until repairs
can be made.


&&

.GGW WATCHES/WARNINGS/ADVISORIES...
Lake Wind Advisory from 5 PM this afternoon to 5 PM MST Friday
for Central and Southeast Phillips-Central and Southern Valley-
Garfield-McCone-Petroleum.

&&

$$

weather.gov/glasgow