376
FXUS65 KGGW 032129
AFDGGW

Area Forecast Discussion
National Weather Service Glasgow MT
329 PM MDT Sun Aug 3 2025

.DISCUSSION...

KEY MESSAGES:

1) Isolated to widely scattered thunderstorms are expected to
persist through this evening, some with heavy rainfall.

2) More widespread thunderstorm chances are expected Monday
evening into Tuesday with heavy rainfall potential and some that
could be severe.

3) Active pattern will remain in place this week with chances for
showers and thunderstorms continuing at times along with
seasonable temperatures. A trend to cooler temperatures is
expected late week.

WEATHER PATTERN OVERVIEW:

Isolated to widely scattered thunderstorms are expected once more
this evening, especially northeastern portions of the CWA. More
widespread thunderstorm chances are expected on Monday evening
into Tuesday. A few storms could be severe and SPC has Marginal
Risks outlined. That said, heavy rainfall appears to be the
primary concern. Cumulative effects of frequent thunderstorms
combined with additional likely heavy rainfall could lead to
localized poor drainage or small stream flooding concerns.

Midweek and beyond, the pattern looks to remain active with
frequent chances for showers and thunderstorms persisting. Zonal
to southwest flow aloft will remain in place during this time
leading to near seasonable temperatures. That said, ensembles
begin to point toward cooler temperatures late in the week.
FORECAST CONFIDENCE & DEVIATIONS:
NBM was followed for this forecast cycle but tweaks were made to
near term pops. Confidence remains high on active weather
continuing this week with seasonable temperatures and a cool down
toward the weekend. Lower confidence exists on exact timing and
placement of storms.



&&

.AVIATION...

LAST UPDATED: August 3, 2025 at 2100Z

FLIGHT CAT RANGE: VFR.

DISCUSSION: Isolated to widely scattered thunderstorms remain
possible this evening over area terminals, especially near KOLF,
KSDY, and KGDV this evening. VFR should hold but brief IFR/MVFR
could present in intense downpours.
WIND: Light and variable tonight, though gusty and shifting winds
are possible near storms.

&&

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

$$

weather.gov/glasgow