052
FXUS65 KGGW 061913
AFDGGW

Area Forecast Discussion
National Weather Service Glasgow MT
113 PM MDT Sun Jul 6 2025

.DISCUSSION...
KEY MESSAGES:

1) A surface trough will help bring a line of scattered showers
and thunderstorms into the evening hours, mainly north of the
Missouri River.

2) Hot weather will return Tuesday and Wednesday with highs in
the 90s to near 100.

3) Cooler conditions to follow Thursday and Friday.

WEATHER PATTERN OVERVIEW:
Showers and thunderstorms will move E or SE across the CWA this
evening bringing gusty winds with dry air below the cloud bases
combined with strong mid-level west winds. Showers will depart
late tonight with sunshine expected Monday.

An upper disturbance moves to our east Monday allowing an upper
ridge to build over the northern Rockies Tuesday and Wednesday.
With W or SW flow, temps will get quite a boost with highs in the
upper 80s and 90s Tuesday, 90s to low 100s Wednesday. This will
dry out the fuels as Minimum humidities drop into the teens across
a good portion of the CWA Wednesday. Winds look to be light, but
if they were higher, then critical fire weather conditions would
be possible.

The an upper shortwave trough moves in for a cooldown Thursday and
Friday. Strong NW winds are possible Thursday and could make for
choppy lake conditions on area lakes.

A slight warm-up can be expected next weekend as the trough exits
the area.

FORECAST CONFIDENCE & DEVIATIONS:

There is high confidence of showers and thunderstorms bringing an
isolated severe threat north of the Missouri River late this
afternoon. There is high confidence of temperatures reaching the
90s to near 100 for many locations by Wednesday.

Adjusted pops upward for today into tonight since the NBM was
keeping POPs too low for the thunderstorms that are likely to
occur later today. Also brought afternoon winds up by utilizing
NBM 90 winds. No other changes to the NBM at this time.

-Stoinskers/TFJ


&&

.AVIATION...

LAST UPDATED: 1915Z

FLIGHT CAT RANGE: VFR.

DISCUSSION: Scattered showers and thunderstorms will move east
across the area this evening becoming more isolated later tonight
near KGDV. Strong/gusty winds will accompany these this evening
with a gust to 40 kts possible. Look for a quieter day Monday with
light W-NW winds. TFJ

&&

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

$$

weather.gov/glasgow