Tornadoes · United States · Iowa
1990 tornadoes in Iowa
71 tornadoes touched down in Iowa in 1990, 75 percent above the average of the record for the state. None of them killed anybody. 1 were rated F4 or EF4 and above.
The rating scale
Tracks are drawn in the color of the rating. The Fujita scale rates the damage rather than measuring the wind: the speeds are what that damage is taken to imply.
F040 to 72 mph
Light damage. Surface peeled off some roofs, gutters and siding damaged, branches broken, shallow-rooted trees pushed over.
F173 to 112 mph
Moderate damage. Roofs badly stripped, mobile homes overturned or badly damaged, exterior doors lost, windows broken.
F2113 to 157 mph
Considerable damage. Roofs torn off well-built houses, frame homes shifted on their foundations, mobile homes destroyed, large trees snapped or uprooted, cars lifted off the ground.
F3158 to 206 mph
Severe damage. Whole stories of well-built houses destroyed, large buildings badly damaged, trains overturned, trees debarked, heavy cars lifted and thrown.
F4207 to 260 mph
Devastating damage. Well-built houses leveled, structures with weak foundations moved some distance, cars thrown and large missiles generated.
F5261 to 318 mph
Incredible damage. Strong frame houses swept off their foundations, car-sized missiles thrown more than 100 meters, steel-reinforced concrete badly damaged, high-rise buildings deformed.
Unrated
The survey recorded a tornado but could not put a number on it, most often because it crossed open country and damaged nothing a rating can be read from.
Every tornado in Iowa in 1990
March 8 2 tornadoes
March 12 1 tornado
| Date | Time | Rating | Where | Path (mi) | Width (yd) | Deaths | Injuries | Damage |
|---|---|---|---|---|---|---|---|---|
| March 12 | 10:40 PM CST | F0 | Lee | 0.2 | 20 | $5,000 to $50,000 |
March 13 14 tornadoes
| Date | Time | Rating | Where | Path (mi) | Width (yd) | Deaths | Injuries | Damage |
|---|---|---|---|---|---|---|---|---|
| March 13 | 3:32 PM CST | F1 | Davis | 14.0 | 23 | $50,000 to $500,000 | ||
| March 13 | 4:31 PM CST | F0 | Sac | 0.3 | 50 | $500 to $5,000 | ||
| March 13 | 4:42 PM CST | F0 | Scott | 0.2 | 73 | $500 to $5,000 | ||
| March 13 | 4:45 PM CST | F3 | Rock Island to IL | 15.5 | 250 | 1 | $50,000 to $500,000 | |
| March 13 | 4:53 PM CST | F4 | Linn | 19.0 | 200 | $5 million to $50 million | ||
| March 13 | 4:55 PM CST | F1 | Scott | 13.0 | 73 | $50,000 to $500,000 | ||
| March 13 | 5:08 PM CST | F1 | Jones | 6.0 | 30 | $500,000 to $5 million | ||
| March 13 | 5:10 PM CST | F1 | Pottawattamie | 8.0 | 40 | $50,000 to $500,000 | ||
| March 13 | 5:55 PM CST | F1 | Dubuque | 3.0 | 23 | $5,000 to $50,000 | ||
| March 13 | 7:20 PM CST | F0 | Dallas | 0.1 | 13 | $500 to $5,000 | ||
| March 13 | 7:25 PM CST | F2 | Boone | 22.0 | 50 | $500,000 to $5 million | ||
| March 13 | 7:35 PM CST | F1 | Boone | 1.0 | 30 | $50,000 to $500,000 | ||
| March 13 | 7:55 PM CST | F2 | Polk | 15.0 | 60 | 15 | $500,000 to $5 million | |
| March 13 | 8:36 PM CST | F3 | Story | 9.0 | 100 | 1 | $50,000 to $500,000 |
April 23 1 tornado
| Date | Time | Rating | Where | Path (mi) | Width (yd) | Deaths | Injuries | Damage |
|---|---|---|---|---|---|---|---|---|
| April 23 | 10:00 PM CDT | F1 | Hancock | 0.5 | 50 | $50,000 to $500,000 |
May 19 1 tornado
| Date | Time | Rating | Where | Path (mi) | Width (yd) | Deaths | Injuries | Damage |
|---|---|---|---|---|---|---|---|---|
| May 19 | 3:15 PM CDT | F1 | Black Hawk | 0.3 | 40 | $50,000 to $500,000 |
June 1 1 tornado
| Date | Time | Rating | Where | Path (mi) | Width (yd) | Deaths | Injuries | Damage |
|---|---|---|---|---|---|---|---|---|
| June 1 | 11:45 PM CDT | F1 | Pocahontas | 3.8 | 50 | $5,000 to $50,000 |
June 2 3 tornadoes
June 7 1 tornado
| Date | Time | Rating | Where | Path (mi) | Width (yd) | Deaths | Injuries | Damage |
|---|---|---|---|---|---|---|---|---|
| June 7 | 10:30 AM CDT | F0 | Fremont | 0.1 | 20 | under $50 |
June 12 7 tornadoes
| Date | Time | Rating | Where | Path (mi) | Width (yd) | Deaths | Injuries | Damage |
|---|---|---|---|---|---|---|---|---|
| June 12 | 3:20 PM CDT | F1 | Cass | 1.0 | 30 | $50,000 to $500,000 | ||
| June 12 | 3:30 PM CDT | F0 | Cass | 0.2 | 17 | $500 to $5,000 | ||
| June 12 | 6:15 PM CDT | F1 | Fayette | 2.0 | 27 | $50,000 to $500,000 | ||
| June 12 | 7:40 PM CDT | F0 | Wright | 0.4 | 17 | $5,000 to $50,000 | ||
| June 12 | 9:50 PM CDT | F0 | Winneshiek | 0.1 | 17 | $500 to $5,000 | ||
| June 12 | 10:09 PM CDT | F0 | Fayette | 0.2 | 20 | $5,000 to $50,000 | ||
| June 12 | 10:48 PM CDT | F1 | Winneshiek | 2.0 | 40 | $50,000 to $500,000 |
June 13 3 tornadoes
June 16 11 tornadoes
| Date | Time | Rating | Where | Path (mi) | Width (yd) | Deaths | Injuries | Damage |
|---|---|---|---|---|---|---|---|---|
| June 16 | 6:15 AM CDT | F0 | Polk | 0.1 | 17 | $50 to $500 | ||
| June 16 | 7:07 AM CDT | F0 | Jasper | 0.2 | 17 | $500 to $5,000 | ||
| June 16 | 1:33 PM CDT | F2 | Wapello | 6.5 | 53 | $50,000 to $500,000 | ||
| June 16 | 8:59 PM CDT | F0 | Appanoose | 0.1 | 17 | $500 to $5,000 | ||
| June 16 | 9:17 PM CDT | F0 | Appanoose | 0.1 | 20 | $500 to $5,000 | ||
| June 16 | 9:25 PM CDT | F1 | Buena Vista | 0.4 | 30 | $50,000 to $500,000 | ||
| June 16 | 9:52 PM CDT | F0 | Wapello | 0.1 | 17 | $500 to $5,000 | ||
| June 16 | 10:40 PM CDT | F0 | Wapello | 0.2 | 20 | $50,000 to $500,000 | ||
| June 16 | 10:40 PM CDT | F0 | Keokuk | 0.1 | 17 | $500 to $5,000 | ||
| June 16 | 11:30 PM CDT | F0 | Pottawattamie | 0.3 | 20 | $5,000 to $50,000 | ||
| June 16 | 11:54 PM CDT | F1 | Floyd | 5.0 | 30 | $50,000 to $500,000 |
June 19 3 tornadoes
June 27 1 tornado
| Date | Time | Rating | Where | Path (mi) | Width (yd) | Deaths | Injuries | Damage |
|---|---|---|---|---|---|---|---|---|
| June 27 | 4:45 PM CDT | F0 | Black Hawk | 0.2 | 27 | $5,000 to $50,000 |
June 28 4 tornadoes
June 29 2 tornadoes
July 4 1 tornado
| Date | Time | Rating | Where | Path (mi) | Width (yd) | Deaths | Injuries | Damage |
|---|---|---|---|---|---|---|---|---|
| July 4 | 11:20 PM CDT | F0 | Linn | 0.3 | 20 | $500 to $5,000 |
July 11 2 tornadoes
July 19 1 tornado
| Date | Time | Rating | Where | Path (mi) | Width (yd) | Deaths | Injuries | Damage |
|---|---|---|---|---|---|---|---|---|
| July 19 | 5:29 PM CDT | F0 | Wayne | 0.1 | 13 | $50 to $500 |
July 25 3 tornadoes
August 2 2 tornadoes
August 9 1 tornado
| Date | Time | Rating | Where | Path (mi) | Width (yd) | Deaths | Injuries | Damage |
|---|---|---|---|---|---|---|---|---|
| August 9 | 8:30 PM CDT | F1 | Howard | 1.5 | 13 | $500 to $5,000 |
August 18 1 tornado
| Date | Time | Rating | Where | Path (mi) | Width (yd) | Deaths | Injuries | Damage |
|---|---|---|---|---|---|---|---|---|
| August 18 | 8:10 PM CDT | F2 | Dickinson | 8.5 | 63 | $500,000 to $5 million |
August 19 2 tornadoes
August 24 2 tornadoes
August 29 1 tornado
| Date | Time | Rating | Where | Path (mi) | Width (yd) | Deaths | Injuries | Damage |
|---|---|---|---|---|---|---|---|---|
| August 29 | 3:00 PM CDT | F0 | Buchanan | 0.1 | 13 |
Nearby
Every tornado in Iowa since 1950Warnings in force in IowaThe live radar over Iowa
What this means
Ratings are the survey's, read off the damage rather than measured; the rating scale is above. Tornado counts rise through the record as reporting improved, so a year in the 1950s is not comparable with one today except for the strongest tornadoes, which were always noticed.
Sources
NOAA Storm Prediction Center tornado database, 1950-2025, the official record kept by NOAA's Storm Prediction Center.