Michigan's deadly EF-3 tornado among state's earliest and strongest on record; plus, when does winter cold really end in your city?; and NASA ruled out lunar asteroid impact in 2032

A rare, early-season tornado in Michigan was the strongest to hit the state since 1977, and left four dead, including a 6th grader. Also, meteorological winter runs from the start of December through the end of February, but that's not true for the coldest part of the year in many places. Plus, NASA on Thursday walked back a prediction that an asteroid had a "small, but notable" chance of impacting Earth or the moon in 2032 based on newly analyzed data. Learn more about your ad choices. Visit podcastchoices.com/adchoices