778
FXUS65 KGGW 111934
AFDGGW
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE GLASGOW MT
134 PM MDT TUE MAR 11 2025
DISCUSSION
KEY MESSAGES:
- A WARMING TREND CONTINUES INTO THURSDAY. THURSDAY'S HIGH
TEMPERATURES COULD CHALLENGE RECORDS.
- COLDER CONDITIONS AND MORE UNSETTLED WEATHER IS EXPECTED
STARTING FRIDAY.
WEATHER PATTERN OVERVIEW:
AN UPPER RIDGE WILL BE BUILDING ALONG THE FRONT RANGE BRINGING WARMER
AIR NORTHWARD. BY THURSDAY A DEEP PACIFIC TROUGH MOVES ONSHORE
WITH LOW PRESSURE DEVELOPING OVER SOUTHERN ALBERTA/NORTH CENTRAL
MONTANA. AS THE UPPER TROUGH CONTINUES EASTWARD IT DEVELOPS A
SPLIT, PULLING THE SURFACE LOW SOUTHWARD UNTIL A DEEP CLOSED LOW
DEVELOPS OVER THE SOUTHERN PLAINS THURSDAY NIGHT.
IN THE NORTHERN STREAM AS THE SURFACE LOW MOVES SOUTH ACROSS
MONTANA ON THURSDAY NIGHT/FRIDAY, A BAND OF PRECIPITATION WILL
SLIDE THROUGH THE REGION. THE PRECIPITATION IS EXPECTED TO START
AS RAIN, THEN TRANSITION TO SNOW AS COLDER AIR MOVES IN FROM THE
NORTH.
THE REMAINDER OF THE FORECAST IS A PARTIAL REPEAT, WITH RIDGE
BUILDING BEFORE A TROUGH MOVES THROUGH WITH A COOL DOWN AND CHANCE
OF PRECIPITATION EARLY NEXT WEEK.
FORECAST CONFIDENCE & DEVIATIONS:
PRECIPITATION AMOUNTS SEEM TO BE TRENDING DOWNWARD FOR THURSDAY
NIGHT-FRIDAY, AND MOVING THROUGH QUICKER, WITH STORM TOTAL
COMPRESSING FROM 36 TO 24 HOURS. SNOW TOTALS ARE LESS THAN AN
INCH, BUT COULD SEE SOME ICING CONDITIONS WITH TEMPERATURES
DROPPING TO AROUND OR BELOW FREEZING FOR FRIDAY MORNING. RAE/TFJ
AVIATION
VFR.
GOOD FLYING CONDITIONS ARE EXPECTED INTO WEDNESDAY WITH LIGHT
WINDS AND ANY CLOUDS BEING VFR.
OUTLOOK: THE NEXT COLD FRONT TO MOVE THROUGH WILL BE LATE THURSDAY
AS SOUTH WINDS TURN TO THE WEST THEN INCREASE FROM THE NW FRIDAY.
THUNDERSTORMS ARE POSSIBLE WITH THE FRONT THURSDAY AFTERNOON OVER
SOUTH-CENTRAL MONTANA, BUT ARE NOT EXPECTED TO MOVE INTO OUR
AIRFIELDS AT THIS TIME. BUT SOME RAIN IS EXPECTED TO CHANGE TO
SNOW FRIDAY. TFJ
GGW WATCHES/WARNINGS/ADVISORIES
NONE.
WEATHER.GOV/GLASGOW
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