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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
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