297
FXUS65 KTFX 070854
AFDTFX
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE GREAT FALLS MT
254 AM MDT SUN JUN 7 2026
KEY MESSAGES
- COOLER WITH SCATTERED SHOWERS AND A FEW ISOLATED THUNDERSTORMS
TODAY.
- RISK OF FROST ACROSS PORTIONS OF SOUTHWEST AND CENTRAL MONTANA
TONIGHT.
- DRY AND SEASONABLY WARM CONDITIONS MONDAY WILL BE FOLLOWED BY
ANOTHER PERIOD OF UNSETTLED AND COOLER WEATHER TUESDAY THROUGH
THURSDAY.
DISCUSSION
A FAIRLY POTENT SHORTWAVE PIVOTS ACROSS THE NORTHERN ROCKIES
TODAY THROUGH THE BASE OF AN UNSEASONABLY COOL UPPER LEVEL
TROUGH/LOW LIFTING OUT INTO AB. A ROUND OF MORE WIDESPREAD SOWERS
MOVES THROUGH AS THE SHORTWAVE AND COLDER AIR ALOFT MOVE INTO THE
REGION, PRIMARILY THIS MORNING, WITH A SHOWERS LINGERING ACROSS
EASTERN PORTIONS OF THE FORECAST AREA AND ALONG THE CONTINENTAL
DIVIDE INTO THIS AFTERNOON. SNOW LEVELS SILL LOOK TO FALL TO
AROUND 6000 FT BY LATE THIS MORNING, WHICH COULD RESULT IN SOME
WET SNOW WITH LITTLE OR NO ACCUMULATION ACROSS SOME MOUNTAIN
PASSES, INCLUDING MACDONALD PASS AND KINGS HILL.
GUSTY WEST WINDS DEVELOPING BEHIND THE SHORTWAVE AND AFTERNOON
TEMPERATURES MAINLY IN THE 50S TODAY WILL FEEL UNSEASONABLY COOL FOR
EARLY JUNE. PARTIAL CLEARING TONIGHT AND LIGHTER WINDS ACROSS
SOUTHWEST MT WILL ALLOW FOR EFFICIENT COOLING AND OVERNIGHT LOW
TEMPS ARE LIKELY TO REACH THE LOWER 30S THERE AND MID 30S TO
AROUND 40 ACROSS THE PLAINS WHERE BREEZY WINDS WILL PERSIST
TONIGHT.
MONDAY WILL BE MAINLY DRY WITH TEMPERATURES RETURNING TO SEASONAL
LEVELS. AN UNSEASONABLY STRONG UPPER LEVEL JET ACROSS THE NORTH
PACIFIC SENDS A SERIES OF SHORTWAVES INTO THE NW US WITHIN A
BROAD UPPER LEVEL TROUGH THAT SHIFTS ACROSS THE NORTHERN ROCKIES
AND MT TUESDAY THROUGH THURSDAY. THIS WILL BRING DAILY CHANCES FOR
SHOWERS AND POSSIBLY SOME THUNDERSTORMS WITH TEMPERATURES AGAIN
TRENDING BELOW SEASONAL AVERAGES. HOENISCH
AVIATION
07/06Z TAF PERIOD
ADDITIONAL SHOWERS DEVELOP AGAIN LATER TONIGHT INTO SUNDAY
MORNING. THIS ACTIVITY AND IT'S ASSOCIATED MVFR CONDITIONS AND
MOUNTAIN OBSCURATION WILL BE MOST IMPACTFUL OVER CENTRAL AND
NORTH- CENTRAL MT BETWEEN 07/09 AND 07/19Z. POST FRONTAL WESTERLY
WINDS INCREASE FOR ALL AREAS SUNDAY AFTERNOON, WITH GUSTS OVER 40
KTS AT TIMES ALONG THE ROCKY MOUNTAIN FRONT AND ADJACENT PLAINS
WEST OF I15. - RCG
PRELIMINARY POINT TEMPS/POPS
GTF 58 39 71 49 / 80 0 0 0
CTB 57 38 67 44 / 40 0 0 10
HLN 58 37 71 49 / 70 0 0 20
BZN 60 33 71 46 / 60 10 0 10
WYS 63 29 66 37 / 10 0 0 40
DLN 61 35 70 45 / 20 0 0 30
HVR 61 40 73 47 / 60 10 0 0
LWT 55 35 70 45 / 60 10 0 0
TFX WATCHES/WARNINGS/ADVISORIES
NONE.
HTTP://WWW.WEATHER.GOV/GREATFALLS
CLICK HERE TO GO TO PREVIOUS BULLETINS.
Main Text Page