A strong south to north pressure gradient the night of Dec 13 into Dec 14 across the Madison River Valley allowed for sustained winds of 40 mph to develop at Norris Hill.
Every event with a place to put it; 1 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 TFX wrote it up.
A strong south to north pressure gradient the night of Dec 13 into Dec 14 across the Madison River Valley allowed for sustained winds of 40 mph to develop at Norris Hill.
The national radar mosaic for the moment the first event began.
1 high wind. Local standard time, as filed.
Mesonet station Norris Hill MTNOR (MT DOT) measured sustained winds, averaged over an hour, of 40 mph.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in Montana in 2024Every state in 2024This day in weather historyWarnings in Montana, December 2024
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 2026-09-24. Each event’s entry at NCEI: 1224626.