James, I don't recall any big tornado or severe weather events in September for our area. From the NWS Memphis Tornado Database, there's been only 11 instances of tornadoes across North MS with the strongest being F3/EF3 which occurred on September 29th, 1972. The other years besides 1972 in which a tornado occurred for North MS in September are: 1958, 1965, 1981, 1982, 1996, 2001, and 2008. Out of those years, only 1982, 1996, and 2008 had more than 2 tornadoes to occur in September. 1958 Atlantic Hurricane Season (Strong El Nino) had 3 category 4's (Total ACE: 182), 1965 Atlantic Season (Strong El Nino) had 1 category 4 (Total ACE: 88), 1972 Atlantic Season (Strong El Nino) had no major hurricanes, 1981 Atlantic Season (Neutral ENSO) had 1 category and 2 category 3's (Total ACE: 100), 1982 Atlantic Season (Neutral ENSO) had 1 category 4 (Total ACE: 32), 1996 Atlantic Season (Neutral ENSO) had 2 category 4's and 4 category 3's (Total ACE: 166), and 2001 Atlantic Season (Weak La Nina) had 2 category 3's and 2 category 4's (Total ACE: 110), and 2008 Atlantic Season (Weak La Nina) had 1 category 3 and 4 category 4's (Total ACE: 146).
Will be very interesting to see if we get our first notable Fall outbreak in September which looking back for North MS would be a first.