The National Weather Service has compiled a list of severe tornadoes in Iowa.
SINCE 1950...IOWA HAS EXPERIENCED FIVE F5 TORNADOES AND FORTY-TWO
F4`S. ONLY THIRTEEN F4`S HAVE OCCURRED SINCE 1980 AND NO F5`S.
THE LAST F5 TO OCCUR IN IOWA WAS ON JUNE 13, 1976 IN BOONE AND STORY
COUNTIES NEAR THE HAMLET OF JORDAN.
THE LAST F4 WAS APRIL 8, 1999 WHEN TWO F4`S TOUCHED DOWN IN PORTIONS
OF SOUTHWEST AND CENTRAL IOWA.
THE LAST TIME SIX DEATHS FROM A TORNADO OCCURRED IN IOWA WAS ON
SEPTEMBER 16, 1978 WHEN SIX PEOPLE DIED IN MARSHALL AND POWESHIEK
COUNTIES.
THE LAST PATH LENGTH OF AT LEAST 48 MILES OCCURRED ON APRIL
11, 2001 WHEN A TORNADO TRACKED 60.5 MILES FROM MISSOURI BORDER IN
RINGGOLD COUNTY TO NEAR PATTERSON IN WARREN COUNTY.
...F5`S IN IOWA SINCE 1950...
CASS AND ADAIR COUNTIES JUNE 27, 1953 1 DEATH 2 INJURIES
(SOUTHWEST OF ADAIR) 10 MILE PATH
WRIGHT COUNTY OCTOBER 14, 1966 6 DEATHS 172 INJURIES
(BELMOND) 10 MILE PATH
FRANKLIN/FLOYD/CHICKASAW MAY 15, 1968 13 DEATHS 462 INJURIES
AND HOWARD COUNTIES 63 MILE PATH
(CHARLES CITY)
FAYETTE COUNTY MAY 15, 1968 5 DEATHS 156 INJURIES
(OELWEIN) 13 MILE PATH
BOONE AND STORY COUNTIES JUNE 13, 1976 NO DEATHS 9 INJURIES
(JORDAN) 21 MILE PATH
...F4`S IN IOWA SINCE 1980...
DECATUR AND WAYNE JUNE 2, 1980 NO DEATHS OR INJURIES
COUNTIES 32 MILE PATH
DECATUR/WAYNE/LUCAS/ JUNE 7, 1984 2 DEATHS 117 INJURIES
MONROE/MAHASKA/KEOKUK/ 117 MILE PATH
AND IOWA COUNTIES
WOODBURY AND MONONA JULY 28, 1986 NO DEATHS 1 INJURY
COUNTIES 12.5 MILE PATH
POLK AND JASPER SEPT.28, 1986 NO DEATHS OR INJURIES
COUNTIES 20 MILE PATH
ADAMS/UNION/RINGGOLD MAY 24, 1989 NO DEATHS OR INJURIES
AND DECATUR COUNTIES 50 MILE PATH
HAMILTON/STORY/HARDIN/ MAY 24, 1989 NO DEATHS OR INJURIES
MARSHALL AND TAMA 66 MILE PATH
HARDIN AND GRUNDY MAY 30, 1989 NO DEATHS 3 INJURIES
COUNTIES 11 MILE PATH
LINN/JONES/DELAWARE MAY 13, 1990 NO DEATHS OR INJURIES
AND DUBUQUE COUNTIES 19 MILE PATH
CARROLL/SAC/CALHOUN MAY 27, 1995 NO DEATHS OR INJURIES
AND POCAHONTAS COUNTIES 37 MILE PATH
UNION/ADAIR/GUTHRIE MAY 27, 1995 NO DEATHS 2 INJURIES
AND DALLAS COUNTIES 55 MILE PATH
GUTHRIE/GREENE AND MAY 27, 1995 NO DEATHS 1 INJURY
CARROLL COUNTIES 30 MILE PATH
TAYLOR/ADAMS/CASS APRIL 8, 1999 NO DEATHS 3 INJURIES
AND ADAIR COUNTIES 49 MILE PATH
UNION/MADISON AND APRIL 8, 1999 NO DEATHS 1 INJURY
DALLAS COUNTIES 56 MILE PATH
