Frigid Airmass to Bring Significantly Colder Temperatures; Snow Continues Downwind of the Great Lakes

A frigid cold airmass will bring significantly colder weather across the eastern two thirds of the country early this week. Record low temperatures are expected in the Southeast by Tuesday morning. Moderate to heavy lake effect snow will continue downwind of the Great Lakes through Monday. Several inches of snow accumulation is expected, including in portions of the Chicago Metro Read More >

Event Summary:

A potent early Spring storm system triggered numerous small thunderstorms on March 30, 2005, including a few brief tornadoes from east of Mason City, IA through Mitchell County, Iowa to near the Minnesota-Iowa state line. This area was near the center of low pressure and nearby cold/warm fronts that served as a 'triple point' to focus severe weather development. Even though the storms were relatively small and weak, the ingredients were there to spawn brief tornadoes.

Known touchdowns included...