Thunderstorm Wind, Clinton
- When
- July 29, 2:48 PM CST
- Where
- Clinton County
- Measured
- 57 kt (66 mph)
- Coordinates
- 41.780, -90.270
Tornadoes and Damaging Winds in Iowa, July 29, 1987
3 thunderstorm wind, 3 tornado, as filed by the National Weather Service.
Where it happened
Every event with a place to put it. Tap one for its entry below.
- Tornadoes
- Tropical storms and surge
- Floods
- Wind
- Hail
- Winter weather
- Heat and drought
- Cold
- Fire, smoke and dust
- Marine and coastal
- Other
The toll
- Deaths
- 0
- Injuries
- 0
- Property damage
- $5.3 million
- Crop damage
- None recorded
- Events
- 6
Deaths and injuries are direct and indirect together, as the offices filed them. Damage is property and crops in the dollars of the year, not adjusted for inflation, and only where an office estimated it.
Event by event
3 thunderstorm wind, 3 tornado. Local standard time, as filed.
Tornado, Clinton
- When
- July 29, 3:30 PM CST
- Where
- Clinton County
- Rating
- F1
- Path length
- 2 mi
- Path width
- 23 yd
- Property damage
- $250,000
- Coordinates
- 41.780, -90.280
Thunderstorm Wind, Howard
- When
- July 29, 5:10 PM CST
- Where
- Howard County
- Coordinates
- 43.380, -92.120
Tornado, Winneshiek
- When
- July 29, 6:10 PM CST
- Where
- Winneshiek County
- Rating
- F2
- Path length
- 3 mi
- Path width
- 30 yd
- Property damage
- $2.5 million
- Coordinates
- 43.270, -91.720
Tornado, Allamakee
- When
- July 29, 6:16 PM CST
- Where
- Allamakee County
- Rating
- F2
- Path length
- 7 mi
- Path width
- 30 yd
- Property damage
- $2.5 million
- Coordinates
- 43.220, -91.630
Thunderstorm Wind, Allamakee
- When
- July 29, 6:40 PM CST
- Where
- Allamakee County
- Coordinates
- 43.380, -91.230
What these are
- Thunderstorm Wind
- Winds from a thunderstorm of 50 knots (58 mph) or more, or lower winds that caused damage or casualties. Measured gusts are marked MG, estimated EG.
- Tornado
- A violently rotating column of air in contact with the ground and extending from a thunderstorm, filed with its path, width and Fujita or Enhanced Fujita rating from the damage survey.
After NWS Directive 10-1605, the rules offices file Storm Data by.
The same day elsewhere
- Tornadoes and Hail in Georgia, July 29, 1987
- Tornado and Hail in Illinois, July 29, 1987
- Tornado in Louisiana, July 29, 1987
- Hail and Damaging Winds in Indiana, July 29, 1987
- Damaging Winds in Wisconsin, July 29, 1987
- Hail and Damaging Winds in South Carolina, July 29, 1987
- Hail and Damaging Wind in North Carolina, July 29, 1987
- Damaging Winds in Mississippi, July 29, 1987
- Hail in Michigan, July 29, 1987
- Damaging Wind in Arkansas, July 29, 1987
- Damaging Wind in South Dakota, July 29, 1987
- Damaging Wind in Idaho, July 29, 1987
More
Every storm in Iowa in 1987Every state in 1987This day in weather historyThe tornado archive for Iowa, 1987Warnings in Iowa, July 1987
Sources
NOAA National Centers for Environmental Information, Storm Events Database, compiled from the National Weather Service’s monthly Storm Data. Complete through 2026-06; NCEI adds each month about 75 days after it ends and revises past years a few times a year. Rebuilt 2026-09-24. Each event’s entry at NCEI: 10015503, 10015504, 10020815, 10028105, 10028106, 10028107.