FXUS65 KGGW 041809

AFDGGW



Area Forecast Discussion

National Weather Service Glasgow MT

1209 PM MDT Tue Aug 4 2026



.KEY MESSAGES...



- A ridge is expected to help temperatures climb to around normal

  to above normal by Thursday.



- A generally dry pattern is expected through Sunday. Increases in

  precipitation are possible beginning Sunday afternoon. 









&&



.DISCUSSION...



WEATHER PATTERN OVERVIEW:

An upper level ridge will slowly be building in starting today, so

temperatures will continue to rise closer to normal highs by

Thursday. 



The GFS and ECMWF ensembles are suggesting a flattening of the

ridge on Sunday, so low chances of precipitation and thunderstorms have

potential to move in by then. 



FORECAST CONFIDENCE & DEVIATIONS:

There are no deviations.



There is high confidence in temperatures through the weekend.



There is moderate to high confidence in critical fire weather

occurring on Thursday.



There is low confidence in accumulating precipitation starting on

Sunday.



&&



.AVIATION...

LAST UPDATE: 1830Z



FLIGHT CAT RANGE: VFR



DISCUSSION: Dry conditions are expected through the cycle with a 

few mid to high clouds. 



WIND: West Northwest at 10 to 18 knots with gusts to 24 knots,

decreasing to light and variable after 02Z, becoming south at 5 to

10 knots after 12Z, becoming west at 10 to 18 knots after 18Z

Wednesday.



&&



.GGW WATCHES/WARNINGS/ADVISORIES...

Fire Weather Watch from Thursday afternoon through Thursday 

evening for Dawson/McCone/Prairie/Richland/Wibaux Counties-Fort 

Peck Reservation and Daniels/Roosevelt/Sheridan Counties-

Northern Valley and Northern Phillips Counties-Southern 

Petroleum and Southern Garfield Counties-The Little Rockies-The 

Lower Missouri River Breaks including the Charles M Russell 

National Wildlife Refuge.



&&



$$



weather.gov/glasgow