Glendive, Montana Weather Forecast Discussion

191
FXUS65 KGGW 170820
AFDGGW
Area Forecast Discussion
National Weather Service Glasgow MT
220 AM MDT Wed Sep 17 2025
.DISCUSSION...
KEY MESSAGES:
- Low pressure circulation will sweep through southern and eastern
  portions of our region through Thursday with minor chances for
  rain along the MT/ND boarder.
- Drier weather conditions will arrive from the west later this
  week, as temperatures remain seasonable.
WEATHER PATTERN OVERVIEW:
Today into Thursday: Two lows are currently moving across the area
with the first situated over Wyoming and the second dropping out
of southern Saskatchewan into North Dakota. These lows are dancing
around each other as they slowly translate east. Southern showers
are exiting the area early this morning as a new set of showers
may develop near the MT/ND/SK triple point and slowly exit east
through Thursday. This passage should bring nothing more than very
isolated rain showers during this time.
Thursday night into Sunday: Flow will become northwest and dry
out as a ridge approaches the area and moves through on Sunday.
Expect gradually rising temperatures and dry conditions.
Sunday night into Monday: the ridge will topple over with a weak
front moving through the area and bringing a few isolated showers
and thunderstorms.
Monday night onward: Flow will become semi-zonal with a weak
ridge to the west. This will allow for warm and dry conditions to
again take hold again through early next week.
FORECAST CONFIDENCE & DEVIATIONS:
Confidence for Thursday afternoon is currently lowered with a
several CAMs showing some kind of disturbance moving down the
rapidly reestablishing northwest flow that will affect the
western half of the CWA. Meanwhile, NBM ensembles do not show this
in any meaningful way. As this is the first set of CAMs to barely
see this, have held off on modifying the PoPs/QPF, but confidence
has been reduced to moderate for that time period on dry
conditions.
GAH
&&
.AVIATION...
UPDATE: 0800Z
FLIGHT CAT RANG: VFR
DISCUSSION: Just mid to High clouds at most locations. A Slight
chance (10-20%) for a light rain shower is possible for KGDV &
KSDY through the TAF cycle, but it too low to include in the TAFs
directly.
WIND: Light and variable through this morning. Becoming NE at 10
kts or less this afternoon. Veering E this evening through
tonight.
EQUIPMENT: Comms issues with the KSDY observation remain. AMD NOT
SKED will remain in place until METARs are available.
GAH
&&
.GGW WATCHES/WARNINGS/ADVISORIES...
None.
&&
$$
weather.gov/glasgow

NWS GGW Office Area Forecast Discussion