FXUS65 KGGW 302112
AFDGGW

Area Forecast Discussion
National Weather Service Glasgow MT
312 PM MDT Wed Apr 30 2025

.DISCUSSION...

KEY MESSAGES:

1) Expect lingering isolated rain showers through Thursday.

2) Warmer temperatures are expected this weekend which may
increase fire weather concerns.

3) A change to wetter and cooler conditions is possible early to
middle portions of next week.

WEATHER PATTERN OVERVIEW:

Isolated rain shower regime looks to continue into Thursday. Late
Thursday, winds do look to shift north and increase to a range of
5 to 15 kts with occasional higher gusts to 25 kts. This looks to
be shy of Lake Wind criteria for Fort Peck Lake at the moment, but
it is close and will need to be monitored.

Expect upper level ridging to give rise to drier and hotter
weather conditions heading into the second half of this week,
particularly over the weekend. Given the dry spell in place, will
need to monitor for increased fire weather concerns.

Ensembles depict the ridging shifting east early to mid next week
with cooler temperatures and increasing rain chances.

FORECAST CONFIDENCE & DEVIATIONS:

Given spotty coverage, low confidence exists on rain chances into
Thursday. High confidence exists on warmer weather with the broad
upper level ridge pattern setting up through this weekend. NBM
handled this forecast well, but future shifts should consider
whether a blend of HREF or NBM90 may tilt the breezy conditions on
Thursday into Lake Wind territory, or if it remains just shy.


&&

.AVIATION...

LAST UPDATED: 2100Z

FLIGHT CAT RANGE: VFR.

DISCUSSION: Mid and high clouds will prevail with isolated
showers, though do not expect significant reductions in ceiling
height or visibility tonight into Thursday unless under a steadier
remote shower.
WIND: Light and variable winds overnight will shift north to
northwest at 5 to 15 kts on Thursday.


&&

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

$$

weather.gov/glasgow