A long-track, deadly tornado occurred on January 23, 1969. In his book, "The Tornado: Nature's Ultimate Windstorm", Thomas Grazulis notes that the process that brought about using the Fujita Scale to rate tornadoes can be traced to this event. (Grazulis, 2003). This tornado devastated the town of Hazlehurst, MS. It is the deadliest tornado on record (1950-current) in the month of January.
43 tornadoes occurred on this day and one of the strongest devastated the town of Clarksville, TN. It struck the town at 415am CT. It moved a total of 4.3 miles, through the downtown area and dissipated near Saint Bethlehem. There were 5 injuries and no fatalities.