A surface low developed near the Canadian border in Alberta and tracked eastward, propelling a cold front through the region during the day on April 27. Most wind gusts remained below high wind criteria, but once the front made it into SW MT n-s oriented valleys, a few isolated stronger gusts occurred.
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 TFX wrote it up.
A surface low developed near the Canadian border in Alberta and tracked eastward, propelling a cold front through the region during the day on April 27. Most wind gusts remained below high wind criteria, but once the front made it into SW MT n-s oriented valleys, a few isolated stronger gusts occurred.
The national radar mosaic for the moment the first event began.
2 high wind. Local standard time, as filed.
Mesonet station mtm56 5.5 S Twin Bridges measured a 61 mph gust. Additionally, sustained winds averaged 44.5 mph from 1255 PM to 315 PM MDT.
Asos station KDLN Dillon Airport measured a gust of 60 mph.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in Montana in 2023Every state in 2023This day in weather historyWarnings in Montana, April 2023
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: 1093948, 1093949.