A winter storm watch is takes effect at 9 a.m. on Wednesday until 3 a.m. on Thursday. Major travel impacts are expected, including air travel. The worst of this storm is expected to hit in the afternoon and evening.

A winter storm watch was issued by the National Weather Service on Tuesday at 4:29 a.m. EST valid from Wednesday 1 p.m. EST until Thursday 7 a.m. EST for St. Joseph, Branch and Hillsdale counties.

The one big snowfall that Michigan usually gets each year is coming. And, weather watchers say, there even could be two snowstorms by the end of the week. The National Weather Service expanded its winter storm watch by four counties overnight Tuesday to include all of southeast Michigan,