FXUS65 KGGW 030946

AFDGGW



Area Forecast Discussion

National Weather Service Glasgow MT

246 AM MST Tue Feb 3 2026



.DISCUSSION...



KEY MESSAGES:



- A Dense Fog Advisory remains in effect until 10 am this morning

  for areas along and east of MT 24. 

 

- Another chance for wintry mix is forecast for today.



- Otherwise, dry and mild weather is expected starting on

  Wednesday and continue through the weekend.

  

WEATHER PATTERN OVERVIEW:

A warm front will move east across the forecast area this morning

while a cold front will drop south from Canada this afternoon as a

shortwave trough the area on NW flow aloft. Low clouds and dense

fog has covered areas east of Opheim, Glasgow and Terry overnight

and is expected to linger into the daylight hours of this morning.

A Dense Fog Advisory is in effect until 10 am this morning.

Meanwhile, the warm front this morning will bring a chance of a

wintry mix of light rain, freezing rain and light snow depending

on temperatures. Then, the cold front this afternoon will bring a

chance of light rain and light snow mainly in the east. 



Cloud cover over most of the forecast area tonight will limit the

chances for fog across the area.



Upper ridge will build into the area on Wednesday with very warm

air for early February. Lingering snow cover in the north will

limit temperatures there. At this point. Thursday is expected to

be the warmest day ahead of a dry back door cold front Thursday

night. Temperatures will be somewhat cooler on Friday but still

well above normal. The above normal temperatures will continue 

through the weekend dry weather. 

FORECAST CONFIDENCE & DEVIATIONS:

Confidence is LOW in freezing rain possibilities across portions 

of the area this tomorrow morning and low on precipitation 

chances this afternoon.



Confidence is HIGH in above average temperatures for the area for the

next several days. 



No deviations from the NBM at this time.





&&



.AVIATION...



UPDATED: 0930Z



FLIGHT CAT RANGE: VFR to VLIFR. 



DISCUSSION: A stationary front overnight from Whitewater to 

Glasgow to Terry allowed low clouds to set up in these locations 

and areas to the east of this line. Dense fog and low clouds has

brought LIFR and VLIFR condition overnight which will continue

until 15 to 17Z this morning. The front will move east as a warm

front this morning and push the low clouds to the east and lift

the fog. There will be a chance of light snow or freezing rain

with the warm front this morning. Conditions will improve to VFR

by late morning with a mix of low and mid level clouds. 



A cold front will move south across the region this afternoon 

with chances for light rain or light snow in the east. Low clouds

with the front will bring MVFR ceilings for most of the TAF sites

tonight. KGGW has a good chance of remaining VFR. 



WIND: Variable less than 10 knots early becoming NW 5 to 15 knots

this morning and afternoon. NW winds will diminish this evening

and become light and variable after 06z. 



&&



.GGW WATCHES/WARNINGS/ADVISORIES...

Dense Fog Advisory until 10 AM MST this morning for Central and 

Southern Valley-Daniels-Dawson-Eastern Roosevelt-McCone-Northern 

Valley-Prairie-Richland-Sheridan-Western Roosevelt-Wibaux.



&&



$$



weather.gov/glasgow