279
FXUS65 KGGW 141840
AFDGGW
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE GLASGOW MT
1240 PM MDT FRI AUG 14 2026
KEY MESSAGES
- THE WEEKEND IS EXPECTED TO BE DRIER WITH A WARMING TREND. TEMPS
SHOULD BE CLOSER TO NORMAL SUNDAY AND MONDAY.
- OCCASIONAL CHANCES FOR SHOWERS CAN BE EXPECTED BEGINNING SUNDAY
NIGHT WITH THE BEST CHANCES MONDAY NIGHT AND TUESDAY WITH LESS
THAN A QUARTER INCH WITHIN A 12 HOUR PERIOD EXPECTED.
DISCUSSION
WEATHER PATTERN OVERVIEW:
UPPER TROUGH OVER THE WESTERN STATES HAS BEEN WEAKENING ALLOWING
THE RAINSHOWERS OVER THE EASTERN ZONES TO MOVE OFF TO THE
NORTHEAST OF THE CWA. TEMPERATURES ARE AGAIN COOLER THAN NORMAL
WITH EXPECTED HIGHS IN THE MID 60S TO LOW 70S, ABOUT 10 TO 15
DEGREES BELOW NORMAL.
MODELS ARE PROGGING THAT THE UPPER RIDGE TO OUR SOUTHEAST WILL
REBOUND A BIT THIS WEEKEND. BUT WITH THE ABUNDANT LOW-LEVEL
MOISTURE AROUND, ANY OF THE SUN'S ENERGY WILL INITIALLY GO INTO
EVAPORATION. THUS HIGHS ON SATURDAY WILL ONCE AGAIN BE BELOW
NORMAL. ALSO, FOG DOESN/T LOOK TO BE A MAJOR CONCERN FOR SATURDAY
MORNING AS ABUNDANT CLOUDS TONIGHT SHOULD KEEP RADIATIONAL COOLING
FROM OCCURRING. LATER SHIFTS MAY HAVE MORE INFO ON THIS, SO SOME
PATCHY FOG IS POSSIBLE COME SATURDAY MORNING.
ADDITIONAL WARMING IS EXPECTED SUNDAY WITH MORE SUNSHINE. LOOK FOR
HIGHS IN THE MID 70S TO LOW 80S WITH LIGHT WINDS. SIMILAR
CONDITIONS ARE EXPECTED MONDAY. CLOUDS WILL INCREASE LATE IN THE
DAY WITH THE NEXT DISTURBANCE MOVING IN.
MODELS THEN HAVE SHOWERS AND COOLER CONDITIONS FOR TUESDAY THAT
LINGER INTO WEDNESDAY. RAINFALL AMOUNTS SHOULD BE LESS THAN A
QUARTER INCH IN A 24 HOUR PERIOD. COULD BE ENOUGH TO CAUSE TRAVEL
ISSUES FOR UNPAVED ROADWAYS BUT ALSO KEEP THE FIRE DANGER LOW.
SAID DISTURBANCE MOVES OUT WEDNESDAY WITH A RETURN TO WARMER AND
DRIER CONDITIONS FOR THE END OF THE WEEK.
FORECAST CONFIDENCE & DEVIATIONS:
OVERALL, NBM HELD THE LINE THROUGH MUCH OF THE FORECAST PERIOD.
CONFIDENCE IS INCREASING ON MAINLY DRY CONDITIONS THIS WEEKEND
WITH A WARMUP THROUGH MONDAY. TFJ
AVIATION
LAST UPDATE: 1835Z.
FLIGHT CAT RANGE: MVFR THEN VFR TONIGHT/SATURDAY.
DISCUSSION: ANY RAIN SHOWERS THIS AFTERNOON ARE EXPECTED TO END BY
THE EVENING. CLOUDS WILL THIN THIS EVENING AND LIFT TO VFR LEVELS
OVER THE WESTERN AIRPORTS THEN LIFTING TO VFR SATURDAY AFTERNOON NEAR
THE NORTH DAKOTA.
HOWEVER, IT IS POSSIBLE THAT PATCHY FOG MAY FORM WHERE SKIES THIS
EVENING BECOME CLEAR AND WINDS ARE NEARLY CALM.
WIND: DECREASING AND BECOMING GENERALLY 10 KTS OR LESS FROM THE
NORTH THIS EVENING. RM/TFJ
GGW WATCHES/WARNINGS/ADVISORIES
NONE.
WEATHER.GOV/GLASGOW
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