Up to 16 inches (40.6 cm) of snow expected.
National Weather Service Great Falls MT – 29 Sep 2018
Northern Rocky Mountain Front-Southern Rocky Mountain Front-Including Logan Pass, Marias Pass,Browning, Heart Butte, Bynum, Choteau, and Augusta… including mountain pass level.
WINTER WEATHER ADVISORY FROM 6 AM THIS MORNING TO 3 PM SUNDAY
Total snow accumulations of 4 to 7 inches, with localized amounts up to 16 inches, expected.
Thanks to Kenneth Lund for this link