885
FXUS65 KGGW 162014
AFDGGW

Area Forecast Discussion
National Weather Service Glasgow MT
Issued by National Weather Service Billings MT
214 PM MDT Mon Jun 16 2025

.DISCUSSION...

KEY MESSAGES:

- Some scattered rain showers and thunderstorms are expected this
  afternoon and evening, but coverage will be more limited
  compared to yesterday.

- Through the middle of this week, expect less active weather with
  temperatures above normal.

- A strong low pressure system from the Pacific coast will favor
  the return of strong thunderstorms this weekend.

WEATHER PATTERN OVERVIEW:

Today, conditions are more favorable for strong to severe
thunderstorms south of MT-Highway 200. Some general scattered
showers and thunderstorms are possible elsewhere.

Tuesday through Thursday, an area of weak high pressure will
approach from the west, keeping temperatures warmer than normal
and limiting precipitation coverage overall.

Beginning this weekend, a tightly-wound low pressure system will
move through Washington and Oregon, directing a strong jet streak
toward Montana. Other severe weather parameters may combine to
support strong to severe thunderstorms. SPC has begun mentioning
this scenario in their extended outlook discussion.

FORECAST CONFIDENCE & DEVIATIONS:

Confidence is average for rain shower probability today, and less
than average for exact path and timing of individual
thunderstorms.

Used a more-reliable blend of hi-res models for the forecast for
Days 1-2. Kept NBM for the rest of the forecast.


&&

.AVIATION...

PATTERN: Less active than yesterday, but still a few scattered
rain showers are possible.

FLIGHT CONDITIONS: VFR.

WINDS: From the NW around 10 kts. An off chance that erratic gusty
winds may sneak in from any nearby rain shower or thunderstorm.
Otherwise, near calm tonight.


&&

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

$$

weather.gov/glasgow