A Picture of an F1 Tornado Funnel

F1 Tornado

An F1 tornado is the second weakest tornado on the retired Fujita Scale. An F1 will have wind speeds between 73 to 112 mph. F1 tornadoes can cause moderate damage. On the Enhanced Fujita Scale, the tornado damage scale that replaced the Fujita Scale, an F1 tornado is now an EF1 tornado. An EF1 tornado has wind speeds between 86 and 110 mph.

A F1 tornado is weak but has winds as strong as the weakest hurricane. It has wind speeds strong enough to tear off roofing surfaces. Mobile homes can be blown off their foundations and sometimes turned over. Motor vehicles in motion can be blown off the road. Small barns, detached garages and storage sheds could be destroyed.


F1 Tornado Facts

  1. An F1 tornado is the strongest tornado on the retried Fujita Scale.
  2. An F1 tornado has winds speeds between 73 to 112 mph.
  3. Damage from a F1 tornado is described as "moderate".
  4. In the United States, between 1950 and Jan 31st, 2007 there was 16,883 confirmed F1 tornadoes.
  5. In the United States, between 1950 and Jan 31st, 2007 there was 201 confirmed fatalities from F1 tornadoes.
  6. In the United States, between 1950 and Jan 31st, 2007 there was 6,325 confirmed injuries from F1 tornadoes.
  7. In the United States, between 1950 and Jan 31st, 2007 the deadliest F1 tornado was on 6/17/1978 and killed 16 people in Kansas.
  8. In the United States, between 1950 and Jan 31st, 2007 the F1 tornado to cause the most injuries was on 2/29/1952 and injured 166 people.
  9. In the United States, between 1950 and Jan 31st, 2007 the year with the most F1 tornadoes was 1973 with 497.
  10. On the current Enhanced Fujita Scale, an F1 tornado is now called an EF1 tornado.

Notable F1 Tornadoes

Below is a list of the top 5 deadliest F1 tornadoes between 1950 and Jan 31st, 2007.

  • On June 17th, 1978 in Kanas an F1 tornado killed 16 people.
  • On November 16th, 1989 in New York an F1 tornado killed 9 people.
  • On May 26th, 1974 in South Carolina an F1 tornado killed 6 people.
  • On March 29th, 1991 in Alabama an F1 tornado killed 5 people.
  • On May 15th, 1968 in Illinois an F1 tornado killed 4 people.