FUJITA TORNADO INTENSITY SCALE  F0: Gale tornado (40-72 mph); light damage.  F1: Moderate tornado (73-112 mph); moderate damage.  F2: Significant tornado.

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Presentation transcript:

FUJITA TORNADO INTENSITY SCALE  F0: Gale tornado (40-72 mph); light damage.  F1: Moderate tornado ( mph); moderate damage.  F2: Significant tornado ( mph); considerable damage.  F3: Severe tornado ( mph); Severe damage.  F4: Devastating tornado ( mph); Devastating damage.  F5: Incredible tornado ( mph); Incredible damage.

DEADLIEST TORNADOES  The Tri-State Tornado Outbreak of March 18, 1925 killed 689 people in Missouri, Illinois and Indiana. Murphrysboro, Ill., had 234 of those deaths, and West Frankfort, Ill., had 127.  Other deadly tornadoes include the May 6, 1840 tornado which killed 317 people in Natchez, Mississippi; the May 27, 1896, tornado which killed 255 in St. Louis, Missouri. Tornadoes on successive days in 1936 killed 216 people in Tupelo, Mississippi, on April 5; and 203 people in Gainesville, Georgia, on April 6.

TORNADO ALLEY AREAS WHERE TORNADOES OCCUR MOST