▁in ▁the ▁U . S ., ▁numbers ▁of ▁counted ▁torn ado es ▁have ▁increased ▁marked ly ▁in ▁recent ▁dec ades ▁although ▁the ▁number ▁of ▁actual ▁torn ado es ▁and ▁counted ▁significant ▁torn ado es ▁has ▁not . ▁In ▁older ▁events , ▁the ▁number ▁of ▁torn ado es ▁officially ▁counted ▁is ▁likely ▁under est im ated . ▁ ▁By ▁continent ▁ ▁Africa ▁ ▁Asia ▁ ▁Europe ▁ ▁North ▁America ▁ ▁O ce ania ▁ ▁South ▁America ▁ ▁T orn ado es ▁by ▁year ▁▁ ▁See ▁List ▁of ▁torn ado ▁events ▁by ▁year ▁Currently ▁ 1 9 7 0 ▁- ▁Pres ent ▁▁ ▁T orn ado es ▁by ▁day ▁of ▁year ▁▁ ▁See ▁List ▁of ▁torn ado es ▁by ▁calendar ▁day ▁T orn ado es ▁striking ▁the ▁dow nt own ▁central ▁business ▁district ▁of ▁major ▁cities ▁▁ ▁See ▁List ▁of ▁torn ado es ▁striking ▁dow nt own ▁areas ▁of ▁large ▁cities ▁ ▁T orn ado es ▁r ated ▁F 5 ▁and ▁EF 5 ▁▁ ▁See ▁List ▁of ▁F 5 ▁and ▁EF 5 ▁torn ado es ▁ ▁T orn ado es ▁causing ▁ 1 0 0 ▁or ▁more ▁death s ▁▁ ▁See : ▁List ▁of ▁torn ado es ▁causing ▁ 1 0 0 ▁or ▁more ▁death s ▁▁ ▁T orn ado - related ▁death s ▁at ▁schools ▁▁ ▁See ▁List ▁of ▁torn ado - related ▁death s ▁at ▁schools ▁T orn ado es ▁spawn ed ▁by ▁tropical ▁cycl ones ▁▁ ▁See ▁List ▁of ▁tropical ▁cy clone - sp awn ed ▁torn ado es ▁See ▁also ▁▁▁