Extreme Cold/Wind Chill in Eastern Toole and Liberty, Montana

Mesonet station GW5555 Grassy Butte 3SE measured a -36F wind chill.

A potent shortwave within a larger scale trough overspread the region late evening on the 26th into the 27th. This resulted in a cold front moving across the region, mostly during the morning of the 27th. Strong gusts and a few snow squalls accompanied this front as it progressed through the region.

Behind the cold front there were a few instances of extreme cold across the Hi-Line (Temperatures or wind chills of -35F or less).