National Weather Service National Headquarters

• Home
• Site Map
• News
• Organization
• Search for: NWS All NOAA 

000
FXUS65 KGGW 252021
AFDGGW

Area Forecast Discussion
National Weather Service Glasgow MT
221 PM MDT Mon Sep 25 2023

.DISCUSSION...
Upper ridge will continue sliding east across Montana tonight and
Tuesday, while a deep low spins slowly toward the coast of British
Columbia. Warm and dry weather continue on Tuesday with a
strengthening lee trof. Tightening pressure gradient will fuel the
low level jet over eastern Montana for increasing winds. Current
models suggest that the strongest winds will be over the higher
terrain areas north of Highway 2, with a weaker pressure gradient
over Fort Peck Lake but winds should be close enough to criteria
to issue a Lake Wind Advisory.

The lee trof will move across eastern Montana Tuesday night as a
cold front. This will bring to an end the warmer weather, with
temperatures dropping back to near normal for late September.

As the Pacific upper low moves onshore through the end of the
week, a series of shortwaves will lift through the southwest flow.
Moisture will increase with the shortwaves, bringing better
chances for rain into the weekend.


&&

.AVIATION...
VFR. Generally clear skies although there could be some patchy
fog near the North Dakota border Tuesday morning.

&&

.GLASGOW WATCHES/WARNINGS/ADVISORIES...
Lake Wind Advisory from 10 AM to 9 PM MDT Tuesday For Fort Peck
Lake for Central and Southeast Phillips...Central and Southern
Valley...Garfield...McCone...Petroleum.

&&

$$

weather.gov/glasgow