Oh my God! I had no idea this was just another name for Alberta Clippers. Thanks for passing that along; although my blood pressure certainly raises with this amount of dishonesty in their reporting...
Alberta Clippers is a hair salon in Canada...
Basically, just a big dip in the jet stream over the US. The more narrow the dip, the more wild the weather. There were times this past summer where the jet stream went above the Great Lakes. In this event, it dipped well down into the south.