I live in Ohio and the last weather report I heard yesterday was that a storm was expected early today, and then we were supposed to have a pretty day the rest of the day.
When I went online this eve. I heard about the tornado warnings and that my area had been under a tornado warning too, but I had slept through it. (that in itself is pretty scary).
This tornado is unusual not only by the fact that it occurred so late in the season, but that it happened at night. I believe that they usually occur during daylight hours. Coming at night meant that most were not aware of it being in the area, most would not have recieved the warning.