458
FXUS65 KTFX 090522
AFDTFX
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE GREAT FALLS MT
1122 PM MDT FRI AUG 8 2025
AVIATION SECTION UPDATED.
KEY MESSAGES
- ANOTHER BREEZY DAY IS EXPECTED IN THE HAVRE AND LEWISTOWN AREAS
ON SATURDAY, ALONG WITH A FEW SHOWERS IN THESE AREAS.
- AFTERNOON TEMPERATURES WILL TRENDING BACK CLOSER TO NORMAL
STARTING ON SUNDAY, WITH LOW CHANCES FOR PRECIPITATION EACH
DAY.
UPDATE
/ISSUED 628 PM MDT FRI AUG 8 2025/
UPDATED FORECAST IS OUT FOR THIS EVENING. ONLY ADJUSTMENT WAS TO
INCREASE POPS IN THE HAVRE AREA, WHERE LIGHT SHOWERS ARE MORE
NUMEROUS THIS EVENING. OTHERWISE, THE CHANCE FOR LIGHTNING IS ON
THE LOW SIDE, AND QPF AMOUNTS WILL ALSO BE LOW TONIGHT. BREEZY
NORTHWEST WINDS THIS EVENING WILL MAKE IT FEEL A BIT CHILLY.
OTHERWISE, THE REST OF THE FORECAST IS ON TRACK. BRUSDA
DISCUSSION
/ISSUED 628 PM MDT FRI AUG 8 2025/
WHILE THE PREVIOUS DISCUSSION FROM THE PREVIOUS SHIFT REMAINS ON
TRACK, RECENT RADAR TRENDS HAVE BEEN TO SHOW NUMEROUS WIDESPREAD
LIGHT RAIN SHOWERS ACROSS NORTH CENTRAL MONTANA. WHILE MOST OF
THESE SHOULD BE LIGHT, A FEW TRAINING SHOWERS COULD RESULT IN A
TENTH OF AN INCH OR SO THROUGH THE AFTERNOON. FOR MORE INFORMATION
ON THE REST OF THE DAY AND THROUGH NEXT WEEK, PLEASE SEE THE
PREVIOUS DISCUSSION SECTION BELOW. LUDWIG
AVIATION
09/06Z TAF PERIOD
VFR CONDITIONS WILL PREVAIL AT ALL TERMINALS EXCEPT FOR THE KHVR
TERMINAL. THE PRIMARY CONCERN FOR THIS TAF PERIOD IS LINGERING
SHOWERS AND THUNDERSTORMS FOR THE FIRST FEW HOURS OF THE TAF PERIOD
AND THEN SHOWERS AND THUNDERSTORMS AFTER 09/18Z ACROSS NORTH-CENTRAL
AND CENTRAL MONTANA. AT THE KGTF TERMINAL THERE IS A 15% CHANCE FOR
THUNDERSTORMS BETWEEN 09/21Z AND 10/03Z. ANY THUNDERSTORM WILL CAUSE
A BRIEF PERIOD OF MOUNTAIN OBSCURATION. DURING THE FIRST SIX HOURS
OF THIS TAF PERIOD THERE WILL BE ISOLATED INSTANCES OF LOW-LEVEL
WIND SHEAR ACROSS NORTH-CENTRAL AND CENTRAL MONTANA. -IG
REFER TO WEATHER.GOV/ZLC FOR MORE DETAILED REGIONAL AVIATION
WEATHER AND HAZARD INFORMATION.
PRELIMINARY POINT TEMPS/POPS
GTF 53 75 53 83 / 30 20 20 0
CTB 51 72 51 80 / 50 10 20 0
HLN 51 77 53 83 / 10 10 0 10
BZN 44 76 45 82 / 10 0 0 0
WYS 33 69 32 74 / 0 0 0 0
DLN 40 73 41 79 / 0 0 0 0
HVR 55 73 51 83 / 80 30 10 0
LWT 50 70 46 77 / 30 20 20 0
TFX WATCHES/WARNINGS/ADVISORIES
NONE.
HTTP://WWW.WEATHER.GOV/GREATFALLS
CLICK HERE TO GO TO PREVIOUS BULLETINS.
Main Text Page