A fairly warm and moist system brought accumulating snow to the higher terrain and rain mixed with freezing rain to the lower valleys of western Montana. Total snow amounts ranged between 7 to 12 inches.
Every event with a place to put it; 2 filed by county or forecast zone are drawn at its center, in a lighter ring. Tap one for its entry below.
Deaths and injuries are direct and indirect together, as the offices filed them. Damage is property and crops in the dollars of the year, not adjusted for inflation, and only where an office estimated it.
The episode as NWS MSO wrote it up.
A fairly warm and moist system brought accumulating snow to the higher terrain and rain mixed with freezing rain to the lower valleys of western Montana. Total snow amounts ranged between 7 to 12 inches.
The national radar mosaic for the moment the first event began.
2 heavy snow. Local standard time, as filed.
The Montana DOT reported 8 to 12 inches of snow over Marias Pass.
Lookout Pass ski area measured 12 inches of new snow in 24 hours. They reported 14 inches in 48 hours. A SNOTEL over Lookout Pass reported 9 inches of snow.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in Montana in 2009Every state in 2009This day in weather historyWarnings in Montana, December 2009
NOAA National Centers for Environmental Information, Storm Events Database, compiled from the National Weather Service’s monthly Storm Data. Complete through 2026-06; NCEI adds each month about 75 days after it ends and revises past years a few times a year. Rebuilt 2026-10-01. Each event’s entry at NCEI: 208295, 208294.