Thunderstorm Wind, Polk
- When
- July 8, 1:33 PM CST
- Where
- Polk County
- Coordinates
- 41.600, -93.620
Tornadoes and Hail in Iowa, July 8, 1987
10 thunderstorm wind, 4 tornado, 2 hail, 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
- $55,000
- Crop damage
- None recorded
- Events
- 16
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
10 thunderstorm wind, 4 tornado, 2 hail. Local standard time, as filed.
Tornado, Marion
- When
- July 8, 2:50 PM CST
- Where
- Marion County
- Rating
- F0
- Path length
- 0.1 mi
- Path width
- 13 yd
- Property damage
- $3,000
- Coordinates
- 41.430, -92.970
Tornado, Cherokee
- When
- July 8, 3:05 PM CST
- Where
- Cherokee County
- Rating
- F0
- Path length
- 0.1 mi
- Path width
- 13 yd
- Property damage
- $3,000
- Coordinates
- 42.820, -95.450
Tornado, Hamilton
- When
- July 8, 3:25 PM CST
- Where
- Hamilton County
- Rating
- F1
- Path length
- 1 mi
- Path width
- 23 yd
- Property damage
- $25,000
- Coordinates
- 42.300, -93.500
Thunderstorm Wind, Story
- When
- July 8, 3:25 PM CST
- Where
- Story County
- Measured
- 60 kt (69 mph)
- Coordinates
- 42.020, -93.450
Hail, Warren
- When
- July 8, 3:30 PM CST
- Where
- Warren County
- Measured
- 1 in hail
- Coordinates
- 41.470, -93.420
Thunderstorm Wind, Muscatine
- When
- July 8, 5:12 PM CST
- Where
- Muscatine County
- Measured
- 52 kt (60 mph)
- Coordinates
- 41.380, -91.270
Thunderstorm Wind, Black Hawk
- When
- July 8, 5:30 PM CST
- Where
- Black Hawk County
- Measured
- 78 kt (90 mph)
- Coordinates
- 42.500, -92.420
Thunderstorm Wind, Tama
- When
- July 8, 5:47 PM CST
- Where
- Tama County
- Measured
- 60 kt (69 mph)
- Coordinates
- 42.000, -92.320
Thunderstorm Wind, Benton
- When
- July 8, 5:58 PM CST
- Where
- Benton County
- Coordinates
- 41.900, -92.280
Thunderstorm Wind, Benton
- When
- July 8, 6:20 PM CST
- Where
- Benton County
- Measured
- 61 kt (70 mph)
- Coordinates
- 42.170, -92.030
Hail, Benton
- When
- July 8, 6:35 PM CST
- Where
- Benton County
- Measured
- 1 in hail
- Coordinates
- 42.020, -92.080
Thunderstorm Wind, Benton
- When
- July 8, 6:55 PM CST
- Where
- Benton County
- Measured
- 57 kt (66 mph)
- Coordinates
- 42.220, -91.870
Thunderstorm Wind, Clayton
- When
- July 8, 7:30 PM CST
- Where
- Clayton County
- Coordinates
- 42.720, -91.530
Thunderstorm Wind, Delaware
- When
- July 8, 8:00 PM CST
- Where
- Delaware County
- Measured
- 50 kt (58 mph)
- Coordinates
- 42.480, -91.450
Tornado, Page
- When
- July 8, 11:20 PM CST
- Where
- Page County
- Rating
- F1
- Path length
- 1 mi
- Path width
- 23 yd
- Property damage
- $25,000
- Coordinates
- 40.650, -95.150
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.
- Hail
- Hail three-quarters of an inch or larger, or smaller hail that caused damage, filed with the largest stone measured.
After NWS Directive 10-1605, the rules offices file Storm Data by.
The same day elsewhere
- Tornado and Hail in Colorado, July 8, 1987
- Hail in Oklahoma, July 8, 1987
- Hail and Damaging Winds in Nebraska, July 8, 1987
- Hail and Damaging Winds in Kansas, July 8, 1987
- Damaging Winds in New York, July 8, 1987
- Damaging Winds in North Carolina, July 8, 1987
- Hail and Damaging Wind in New Jersey, July 8, 1987
- Damaging Wind in Illinois, July 8, 1987
- Damaging Wind in Minnesota, July 8, 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: 10015461, 10015462, 10015463, 10015464, 10015465, 10015466, 10015467, 10015468, 10015469, 10015470, 10015471, 10015472, 10015473, 10015474, 10015475, 10015476.