Iowa's
Strong & Violent Tornadoes
1970 - 2007
|
Date & Time |
Iowa
Counties Damage Path Location (Cities/Towns Affected) |
PL | PW | Inj. | Fat. |
| 6/1/07 1207pm CDT |
Louisa/Muscatine
EF3 1 S-SE Grandview - 3 N-NE Muscatine (Grandview, Fruitland, & Muscatine) |
16 | 700y | 3 | 0 |
| 11/12/05 427pm CST |
Boone/Webster/Hamilton
F3 1 S Boxholm - 5 N-NE Stratford (Stratford) |
15 | 100y | 3 | 1 |
| 6/11/04 556pm CDT |
Howard
F3 4 S Riceville - 4 NW Leroy MN Moved into Mower Co. MN |
8 (12) |
200y | 0 | 0 |
| 6/11/04 220pm CDT |
Buena
Vista/Clay F3 5 NW Marathon - 3 N Webb |
6 | 400y | 0 | 0 |
| 5/21/04 422pm CDT |
Linn
F3 2 SW Palo - 1 NE Palo (Palo) |
3 | 200y | 0 | 0 |
| 4/11/01 1130am CDT |
Ringgold/Union/Clarke/Madison
F3 5 NE Gentry MO - 2 N Patterson Moved into IA from Worth Co. MO |
62 (78) |
300y | 0 | 0 |
| 5/11/00 703pm CDT |
Black
Hawk/Buchanan F3 Cedar Falls - 3 SE Fairbank (Dunkerton) |
21 | 500y | 25 | 1 |
| 5/16/99 416pm CDT |
Harrison
F4* 3 NE Missouri Valley - 2 E Logan Likely F4 intensity between Missouri Valley and Logan |
8 | 400y | 16 | 2 |
| 5/16/99 345pm CDT |
Harrison
F3 5 N Missouri Valley - 7 NW Missouri Valley |
6 | 200y | 4 | 0 |
| 4/8/99 615pm CDT |
Davis/Wapello
F3 Bloomfield - 2 NW Eldon (Bloomfield) |
16 | 400y | 0 | 0 |
| 4/8/99 518pm CDT |
Lucas/Warren/Marion/Jasper
F3 4 NW Lucas - S. Colfax (Colfax) |
39 | 200y | 5 | 0 |
| 4/8/99 424pm CDT |
Madison/Dallas
F3 5 N-NW Winterset - 2 S-SW Adel |
16 | 800y | 0 | 0 |
| 4/8/99 348pm CDT |
Union/Madison
F4 4 SE Creston - 3 NW Winterset |
34 | 1000y | 1 | 0 |
| 4/8/99 254pm CDT |
Taylor/Adams/Cass/Adair
F4 9 N New Market - 6 SE Casey Violent fast moving tornado was up to a mile wide near Bridgewater (Adair Co.) |
50 | 1200y | 3 | 0 |
| 5/15/98 505pm CDT |
Washington/Johnson/Cedar
F3 2 SW Washington - 1 W-NW Clarence (Washington and Downey) |
47 | 400y | 47 | 0 |
| 7/27/95 350pm CDT |
Buchanan/Delaware
F3 2 W Lamont - 1 NW Delhi |
21 | 300y | 0 | 0 |
| 5/27/95 1004pm CDT |
Decatur/Clarke
F3 4 SW Lamoni - 3 NE Weldon Moved into IA from Harrison Co. MO |
30 (31) |
200y | 0 | 0 |
| 5/27/95 756pm CDT |
Guthrie/Greene/Carroll
F4 5 SW Bayard - 2 N Churdan (Churdan) |
30 | 300y | 1 | 0 |
| 5/27/95 755pm CDT |
Union/Adair/Guthrie/Dallas
F4 2 E Creston - 4 S-SW Perry (Stuart) Accompanied by several satellite tornadoes between Creston and Stuart |
55 | 500y | 2 | 0 |
| 5/27/95 722pm CDT |
Carroll/Sac/Calhoun/Pocahontas
F4 1 W Carroll - 1 S Fonda |
37 | 400y | 0 | 0 |
| 5/9/95 455pm CDT |
Muscatine/Scott
F3 2 S Stockton - 2 N New Liberty (Stockton and New Liberty) |
10 | 70y | 0 | 0 |
| 5/9/95 429pm CDT |
Scott
F3 1 NE Stockton - 2 SW New Liberty |
7 | 500y | 0 | 0 |
| 8/7/94 916pm CDT |
Osceola
F3 7 NW Sibley - 2 N Sibley |
5 | 70y | 1 | 0 |
| 7/19/94 906pm CDT |
Howard/Winneshiek
F3 1 W Schley - 7 N Decorah |
23 | 200y | 0 | 0 |
| 7/5/94 526pm CDT |
Woodbury
F3 2 NW Salix - Salix (Salix) |
2 | 200y | 0 | 0 |
| 6/18/94 601pm CDT |
Hancock
F3 Garner - 6 S Garner (Garner) |
6 | 200y | 0 | 0 |
| 4/14/94 848pm CDT |
Adair
F3 2 W Bridgewater - 4 N Greenfield |
14 | 100y | 0 | 0 |
| 6/19/93 356pm CDT |
Delaware
F3 6 SW Manchester - 4 N Manchester |
9 | 200y | 0 | 0 |
| 7/13/92 342pm CDT |
Jones
F3 1 W Scotch Grove - 4 E Scotch Grove (Scotch Grove) |
5 | 70y | 0 | 0 |
| 6/16/92 930pm CDT |
Harrison/Crawford
F3 2 NE Logan - 2 E-SE Charter Oak |
28 | 200y | 3 | 0 |
| 4/26/91 800pm CDT |
Crawford/Sac
F3 1 NE Denison - Near Wall Lake |
23 | 200y | 0 | 0 |
| 3/22/91 420pm CST |
Story/Hardin
F3 1 W Huxley - 3 NW Eldora (Nevada) |
43 | 70y | 0 | 0 |
| 6/28/90 109pm CDT |
Franklin/Hardin
F3 7 NW Ackley - 2 SE Ackley |
9 | 100y | 0 | 0 |
| 3/13/90 755pm CST |
Polk/Story
F3* Ankeny - 2 SE Maxwell (Ankeny) |
15 | 70y | 15 | 0 |
| 3/13/90 453pm CST |
Linn/Jones/Delaware/Dubuque
F4 1 S Prairieburg - 2 NE Worthington (Worthington) |
19 | 200y | 0 | 0 |
| 3/13/90 446pm CST |
Scott
F3 1 SE Riverdale - 2 SW Albany IL Moved into Whiteside Co. IL |
3 (15) |
200y | 0 | 0 |
| 5/30/89 750pm CDT |
Hardin/Grundy
F4 New Providence - 4 W-NW Conrad (New Providence) |
11 | 200y | 3 | 0 |
| 5/24/89 620pm CDT |
Story/Marshall/Tama
F4 7 SE Stratford - 7 W Traer |
66 | 200y | 3 | 0 |
| 5/24/89 611pm CDT |
Adams/Union/Ringgold/Decatur
F4 1 E Corning - 3 W Davis City |
50 | 400y | 0 | 0 |
| 7/15/88 416pm CDT |
Pottawattamie
F3 Council Bluffs City Limits (Council Bluffs) |
3 | 70y | 34 | 0 |
| 7/15/88 414pm CDT |
Pottawattamie
F3* Council Bluffs City Limits (Council Bluffs) |
2 | 100y | 42 | 0 |
| 5/8/88 343pm CDT |
Scott/Clinton
F3 Damage path info n/a |
32 | 200y | 0 | 0 |
| 5/8/88 147pm CDT |
Davis/Wapello/Jefferson/Washington/Louisa
F3* 3 W Bloomfield - 2 W Conesville Likely a cyclic family of strong/damaging tornadoes; multiple small strong tornadoes occurring simultaneously near the town of Ainsworth (Washington Co.) |
71 | 70y | 0 | 0 |
| 9/28/86 534pm CDT |
Polk/Jasper
F4 4 SW Farber - 6 E-SE Baxter |
20 | 300y | 0 | 0 |
| 7/28/86 630pm CDT |
Woodbury/Monona
F4 6 NW Newcastle NE - 3 SE Sloan Moved into IA from Dakota Co. NE |
12 (45) |
100y | 1 | 0 |
| 4/26/86 639pm CDT |
Lyon
F3 3 N George - 3 SW Rushmore MN Moved into Nobles Co. MN |
9 (19) |
100y | 2 | 1 |
| 5/30/85 1022pm CDT |
Clayton
F3 6 W Elkader - 2 S Mount Hope WI Moved into Grant Co. WI |
20 (34) |
500y | 25 | 2 |
| 6/7/84 933pm CDT |
Keokuk/Washington/Iowa/Johnson
F3 Damage path info n/a (Windham) |
24 | 200y | 1 | 0 |
| 6/7/84 845pm CDT |
Mahaska/Keokuk
F4 2 NE Eddyville - 3 SW South English (Wright and Delta) Possibly reached F5 intensity reached between the towns of Wright (Mahaska Co.) and Delta (Keokuk Co.); both towns were devastated by this violent tornado |
30 | 300y | 51 | 2 |
| 6/7/84 845pm CDT |
Ringgold
F3 Mount Ayr - Kellerton ( Mount Ayr and Kellerton) |
14 | 200y | 3 | 1 |
| 6/7/84 730pm CDT |
Wayne/Lucas/Monroe
F3 Allerton - 2 W Albia (Allerton) |
35 | 200y | 3 | 0 |
| 6/7/84 645pm CDT |
Decatur/Wayne/Lucas
F3 3 W-SW Eagleville - 4 W Chariton Moved into IA from Harrison Co. MO |
52 (64) |
300y | 9 | 0 |
| 6/7/84 615pm CDT |
Kossuth
F3 Burt - 6 E Bancroft (Burt) |
9 | 200y | 5 | 0 |
| 6/7/84 520pm CDT |
Page/Taylor/Adams
F3 N.Clarinda - 3 N-NE Corning (Clarinda) |
25 | 100y | 3 | 0 |
| 6/7/84 443pm CDT |
Cass
F3 5 SE Griswold - 2 E Anita |
23 | 200y | 8 | 0 |
| 5/1/83 1050pm |
Fremont
F3* 1 NE Hamburg - 2 W Riverton |
7 | 100y | 3 | 0 |
| 6/6/82 400pm CDT |
Osceola
F3* 1 S Sibley - 1 NE Sibley (Sibley) |
2 | 70y | 1 | 0 |
| 4/26/82 540pm CDT |
Sac/Calhoun/Pocahontas
F3* 5 SE Sac City - 5 NE Fonda (Fonda) |
22 | 200y | 0 | 0 |
| 6/14/81 525am CDT |
Osceola/Dickinson
F3 5 SW Ocheydan - 3 N-NE Lake Park |
26 | 1500y | 0 | 0 |
| 4/10/81 555pm CST |
Marshall
F3
1 S Rhodes - 4 E Melbourne |
6 | 500y | 9 | 0 |
| 6/2/80 425pm CDT |
Decatur/Wayne
F4
1 E Lamoni - 4 W Sewal |
32 | 200y | 0 | 0 |
| 8/28/79 625pm CDT |
Mills/Fremont/Page
F4 7 S Glenwood - Blanchard (Tabor and Blanchard) |
45 | 500y | 14 | 2 |
| 6/28/79 901pm CDT |
Hamilton
F3 3 N-NE Webster City - 1 NE Kamrar |
10 | 300y | 10 | 0 |
| 6/28/79 740pm CDT |
Kossuth/Humboldt/Wright
F3 1 E Luverne - 2 E Eagle Grove |
24 | 300y | 0 | 0 |
| 6/28/79 702pm CDT |
Pocahontas/Calhoun
F4 6 W Palmer - 1 NW Knierim (Manson) |
20 | 300y | 26 | 3 |
| 6/28/79 638pm CDT |
Kossuth
F4* 3 SW Bancroft - 1 NE Irvington (Algona) |
20 | 300y | 34 | 2 |
| 5/8/79 515am CDT |
Woodbury
F3 2 NE Bronson - 3 NE Bronson |
1 | 50y | 4 | 0 |
| 3/29/79 705pm CST |
Union/Madison/Warren
F3 4 W-NW Shannon City - 2 W Indianola (St.Charles and St.Mary's) |
51 | 500y | 1 | 0 |
| 3/29/79 610pm CST |
Taylor
F3 2 SE Siam - 2 NW Lenox |
28 | 500y | 4 | 0 |
| 3/29/79 545pm CST |
Page
F4 3 W Burlington Junction MO - 7 S-SW New Market (Braddyville) Moved into Iowa from Nodaway Co. MO |
11 (25) |
500y | 16 | 0 |
| 9/16/78 825pm CDT |
Marshall/Jasper/Poweshiek
F3 1 S Rhodes - 3 SE Grinnell |
26 | 200y | 45 | 6 |
| 5/4/77 732pm CDT |
Webster
F4 Fort Dodge City Limits (Fort Dodge) |
2 | 70y | 14 | 0 |
| 5/4/77 320pm CDT |
Lee
F3 2 S-SE Farmington - Near Primrose |
12 | 70y | 0 | 0 |
| 6/26/76 615pm CDT |
Pottawattamie
F4 3 W-SW Minden - 2 E Minden (Minden) |
6 | 200y | 15 | 0 |
| 6/13/76 340pm CDT |
Story
F3 2 NW Luther - 1 S Gilbert Anticyclonic strong tornado with an unusual/erratic damage path in the vicinity of the Jordan area violent tornado mentioned below |
5 | 300y | 0 | 0 |
| 6/13/76 325pm CDT |
Boone/Story
F5 3 SW Luther - 3 N-NW Gilbert (Jordan) This slow moving violent tornado devastated the small community of Jordan IA (E. Boone Co.) (about 5 miles east of Boone) |
17 | 800y | 9 | 0 |
| 6/13/76 258pm CDT |
Dallas/Boone
F3 7 S Perry - 3 S Ogden |
22 | 100y | 0 | 0 |
| 11/9/75 430pm CST |
Tama/Black
Hawk/Bremer F3 Near Traer - Near Dunkerton |
40 | 100y | 0 | 0 |
| 8/12/74 715pm CDT |
Iowa
F4 Ladora - 2 SE Ladora (Ladora) |
2 | 100y | 2 | 0 |
| 8/12/74 410pm CDT |
Delaware
F4 2 W Ryan - 5 SE Ryan (Ryan) |
7 | 400y | 12 | 0 |
| 6/20/74 545pm CDT |
Clinton
F4 Near Andover - Clinton (Clinton) |
12 | 200y | 20 | 1 |
| 6/18/74 1035pm CDT |
Polk
F4 Ankeny - Runnels (Ankeny, Altoona, and Runnels) |
19 | 400y | 50 | 2 |
| 5/13/74 910pm CDT |
Worth
F3 Damage path info n/a |
4 | 100y | 3 | 0 |
| 5/13/74 530pm CDT |
Montgomery/Cass
F3 Damage path info n/a |
15 | 50y | 0 | 0 |
| 9/21/73 925am CDT |
Webster
F3 2 NW Fort Dodge - 3 N Fort Dodge |
3 | 100y | 0 | 0 |
| 6/18/73 440am CDT |
Woodbury
F3 Moville - 2 E Moville (Moville) |
2 | 400y | 10 | 2 |
| 9/28/72 250pm CDT |
Linn/Jones/Dubuque/Delaware
F3 Near Prairieburg - 4 SE Epworth |
30 | 100y | 3 | 0 |
| 7/12/71 945pm CDT |
Delaware
F3 Damage path info n/a |
3 | 400y | 2 | 0 |
| 7/12/71 615pm CDT |
Howard/Chickasaw/Fayette
F4 2 W Elma - 1 SW Waucome |
30 | 400y | 8 | 0 |
| 7/12/71 550pm CDT |
Worth/Mitchell
F3 2 SE Grafton - 2 S Stacyville |
18 | 300y | 0 | 0 |
| 5/31/71 220pm CDT |
Osceola/Dickinson
F3 Near May City - 3 N Montgomery |
17 | 300y | 0 | 0 |
| 5/18/71 412pm CDT |
Benton
F3 Damage path info n/a |
4 | 200y | 0 | 0 |
| 5/5/71 620pm CDT |
Taylor
F3 Conway - 2 NE Conway (Conway) |
2 | 400y | 12 | 0 |
| 9/9/70 625pm CDT |
Dubuque
F3 Damage path info n/a |
5 | 300y | 0 | 0 |
| 4/29/70 305pm CDT |
Wayne
F3
4 S Eagleville MO - 3 E-NE Lineville Moved into Iowa from Mercer Co. MO |
3 (34) |
400y | 0 | 0 |
| Year | F3 | F4 | F5 | Total | Iowa's Strong/Violent Tornado Dates |
| 2007 | 1 | 0 | 0 | 1 | June 1 |
| 2006 | 0 | 0 | 0 | 0 | None |
| 2005 | 1 | 0 | 0 | 1 | November 12 |
| 2004 | 2 | 0 | 0 | 2 | June 11 |
| 2003 | 0 | 0 | 0 | 0 | None |
| 2002 | 0 | 0 | 0 | 0 | None |
| 2001 | 1 | 0 | 0 | 1 | April 11 |
| 2000 | 1 | 0 | 0 | 1 | May 11 |
| 1999 | 4 | 3 | 0 | 7 | April 8, May 16 |
| 1998 | 1 | 0 | 0 | 1 | May 15 |
| 1997 | 0 | 0 | 0 | 0 | None |
| 1996 | 0 | 0 | 0 | 0 | None |
| 1995 | 4 | 3 | 0 | 7 | May 9, May 27, July 27 |
| 1994 | 5 | 0 | 0 | 5 | April 14, June 18, July 5, July 19, Aug. 7 |
| 1993 | 1 | 0 | 0 | 1 | June 19 |
| 1992 | 2 | 0 | 0 | 2 | June 16, July 13 |
| 1991 | 2 | 0 | 0 | 2 | March 22, April 26 |
| 1990 | 2 | 1 | 0 | 3 | March 13 |
| 1989 | 0 | 3 | 0 | 3 | May 24, May 30 |
| 1988 | 4 | 0 | 0 | 4 | May 8, July 15 |
| 1987 | 0 | 0 | 0 | 0 | None |
| 1986 | 1 | 2 | 0 | 3 | April 26, July 28, September 28 |
| 1985 | 1 | 0 | 0 | 1 | May 30 |
| 1984 | 7 | 1 | 0 | 8 | June 7 |
| 1983 | 0 | 0 | 0 | 0 | None |
| 1982 | 1 | 0 | 0 | 1 | April 26 |
| 1981 | 2 | 0 | 0 | 2 | April 10, June 14 |
| 1980 | 0 | 1 | 0 | 1 | June 2 |
| 1979 | 5 | 4 | 0 | 9 | March 29, May 8, June 28, August 28 |
| 1978 | 1 | 0 | 0 | 1 | September 16 |
| 1977 | 1 | 1 | 0 | 2 | May 4 |
| 1976 | 2 | 1 | 1 | 4 | June 13, June 26 |
| 1975 | 1 | 0 | 0 | 1 | November 9 |
| 1974 | 2 | 4 | 0 | 6 | May 13, June 18, June 20, August 12 |
| 1973 | 2 | 0 | 0 | 2 | June 18, September 21 |
| 1972 | 1 | 0 | 0 | 1 | September 28 |
| 1971 | 5 | 1 | 0 | 6 | May 5, May 18, May 31, July 12 |
| 1970 | 2 | 0 | 0 | 2 | April 29, September 9 |
| Total | 65 | 25 | 1 | 91 | Iowa's Strong/Violent Tornadoes 1970-2007 |
| Iowa 1970-2007 | County Seat | F3 | F4 | F5 | Total |
| Delaware Co. | Manchester | 4 | 2 | 0 | 6 |
| Story Co. | Nevada | 3 | 1 | 1 | 5 |
| Union Co. | Creston | 2 | 3 | 0 | 5 |
| Decatur Co. | Leon | 2 | 2 | 0 | 4 |
| Taylor Co. | Bedford | 3 | 1 | 0 | 4 |
| Madison Co. | Winterset | 3 | 1 | 0 | 4 |
| Woodbury Co. | Sioux City | 3 | 1 | 0 | 4 |
| Wayne Co. | Corydon | 3 | 1 | 0 | 4 |
| Scott Co. | Davenport | 4 | 0 | 0 | 4 |
| Osceola Co. | Sibley | 4 | 0 | 0 | 4 |
| Page Co. | Clarinda | 1 | 2 | 0 | 3 |
| Adair Co. | Greenfield | 1 | 2 | 0 | 3 |
| Adams Co. | Corning | 1 | 2 | 0 | 3 |
| Polk Co. | Des Moines | 1 | 2 | 0 | 3 |
| Pocahontas Co. | Pocahontas | 1 | 2 | 0 | 3 |
| Calhoun Co. | Rockwell City | 1 | 2 | 0 | 3 |
| Boone Co. | Boone | 2 |