National Weather Service Weather Forecast Office

On September 9, 2001, a cold front finally passed through Southeast Michigan ending an unusual three day severe weather outbreak in September. The cold front slowly approached the western Great Lakes region on the 7th and 8th while warm and unstable air ahead of this front allowed thunderstorms to develop during the afternoon and evening hours on all three days. Most of the thunderstorms that developed over this three day period produced severe wind gusts. The most common type of damage from these storms was trees being blown down or broken.

On September 9, 1931, the temperature rose to 98 degrees in Saginaw, which is the record high temperature for the day. This day also marked the beginning of a four-day period (September 9-12) of record high temperatures!