After that, activity slowed down with few significant tornadoes in October and early November.

This was the first significant tornado to strike the city of Minneapolis since June 14, 1981.

More significant tornadoes occurred within 24 hours than any other week in the tornado record.

This was an unusual setup for a significant tornado, associated with a warm front near a low-pressure center.

It was the first time since 1958 that a significant tornado struck the downtown Billings area.

Between 1950 and 2006, this was the sixth significant tornado in Utah since June 1963.

Aside from the killer F3, there were several other significant tornadoes that day.

Windsor has been struck by more significant tornadoes than any other city in Canada.

Several other significant tornadoes were reported across 15 states.

It was one of only two significant tornadoes to hit the Augusta area.