SEATTLE - It sounds like something that would take you on a tour of Puget Sound,
but it's a name for a common weather system that makes frequent visits to
the upper Midwest and Great Lakes area.
The term comes from an area of low pressure that forms in the eastern
Canadian Rocky Plains in Alberta. The storm them moves quickly southeast
across the U.S. northern plains and into the Great Lakes region.
Since it stays far enough north of the Gulf of Mexico moisture stream and
moves rather quickly, it doesn't drop a whole lot of snow on the area --
usually just a few inches.