Slide 16 of 95
Weak tornadoes account for 69 percent of all tornadoes and are defined as a tornado with winds under 110 mph. Weak tornadoes last an average of 6 to 10 minutes and account for approximately 3 percent of all tornado deaths.
Weak tornado near Hodges, Texas. (Charles Doswell, III, National Severe Storms Laboratory (NSSL), Norman, Oklahoma)