827
FXUS65 KGGW 040835
AFDGGW

Area Forecast Discussion
National Weather Service Glasgow MT
235 AM MDT Wed Jun 4 2025

.DISCUSSION...

KEY MESSAGES:

- Temperatures slowly warm through the week with occasional
  isolated thunderstorms.

- Any receptive fuels have potential for elevated fire weather
  concerns this weekend.

WEATHER PATTERN OVERVIEW:

An upper trough over central Canada and the northern Plains will
keep northwest flow into eastern Montana through much of the week.
Weak shortwaves will be moving through the flow, producing
isolated convective showers and slowly shifting the trough
eastwards. Forcing and moisture is limited for this time of year,
so expecting much of this to not reach the surface while looking
more scattered on radar. With the eastward movement of the
trough, heat building into the Great Basin will spread northward,
bringing slightly above normal temperatures into Montana.

By the end of the week, an upper ridge will be in place over the
west with a stacked low pushing through Manitoba. Tightening
gradient between the high and low could bring stronger winds into
eastern Montana. With warmer and drier conditions also expected,
fire weather concerns may be elevated for the weekend depending on
timing and strength of frontal boundaries.

FORECAST CONFIDENCE & DEVIATIONS:

Beyond regular minor deviations in the short term, followed the
base forecast. Confidence is high for precipitation development
through Thursday with no widespread measurable amounts. There is
moderate confidence in timing and extent of stronger winds from
frontal passages this weekend.

&&

.AVIATION...

UPDATED: 0830Z

FLIGHT CONDITION: VFR

DISCUSSION: Isolated showers and thunderstorms will continue to
develop mostly in the afternoon hours today. Only the steadiest
are likely to bring more than virga and gusty winds on an
otherwise mostly calm day.

&&

.GGW WATCHES/WARNINGS/ADVISORIES...

None.

&&

$$

weather.gov/glasgow