Thunderstorm Wind, Polk
- When
- June 17, 11:00 AM CST
- Where
- Polk County
- Measured
- 65 kt (75 mph)
- Coordinates
- 41.580, -93.720
Hail and Damaging Winds in Iowa, June 17, 1987
8 thunderstorm wind, 3 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
- None recorded
- Crop damage
- None recorded
- Events
- 11
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
8 thunderstorm wind, 3 hail. Local standard time, as filed.
Hail, Polk
- When
- June 17, 11:15 AM CST
- Where
- Polk County
- Measured
- 0.75 in hail
- Coordinates
- 41.600, -93.620
Thunderstorm Wind, Floyd
- When
- June 17, 12:00 PM CST
- Where
- Floyd County
- Measured
- 60 kt (69 mph)
- Coordinates
- 43.130, -92.930
Hail, Bremer
- When
- June 17, 2:25 PM CST
- Where
- Bremer County
- Measured
- 0.75 in hail
- Coordinates
- 42.850, -92.100
Hail, Benton
- When
- June 17, 2:30 PM CST
- Where
- Benton County
- Measured
- 1 in hail
- Coordinates
- 42.170, -92.030
Thunderstorm Wind, Buchanan
- When
- June 17, 3:00 PM CST
- Where
- Buchanan County
- Measured
- 52 kt (60 mph)
- Coordinates
- 42.400, -91.750
Thunderstorm Wind, Fayette
- When
- June 17, 3:15 PM CST
- Where
- Fayette County
- Measured
- 52 kt (60 mph)
- Coordinates
- 42.830, -91.580
Thunderstorm Wind, Clayton
- When
- June 17, 3:25 PM CST
- Where
- Clayton County
- Measured
- 52 kt (60 mph)
- Coordinates
- 42.850, -91.400
Thunderstorm Wind, Delaware
- When
- June 17, 3:56 PM CST
- Where
- Delaware County
- Measured
- 52 kt (60 mph)
- Coordinates
- 42.350, -91.480
Thunderstorm Wind, Clayton
- When
- June 17, 4:00 PM CST
- Where
- Clayton County
- Measured
- 50 kt (58 mph)
- Coordinates
- 42.800, -91.530
Thunderstorm Wind, Clayton
- When
- June 17, 4:05 PM CST
- Where
- Clayton County
- Measured
- 55 kt (63 mph)
- Coordinates
- 43.020, -91.180
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.
- 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 Kansas, June 17, 1987
- Hail and Damaging Winds in Oklahoma, June 17, 1987
- Hail and Damaging Winds in Texas, June 17, 1987
- Hail and Damaging Wind in Louisiana, June 17, 1987
- Hail in Colorado, June 17, 1987
- Damaging Winds in North Dakota, June 17, 1987
- Damaging Winds in Arkansas, June 17, 1987
- Tornado in Wisconsin, June 17, 1987
- Tornado in Wyoming, June 17, 1987
- Hail in Montana, June 17, 1987
- Hail in Oregon, June 17, 1987
More
Every storm in Iowa in 1987Every state in 1987This day in weather historyWarnings in Iowa, June 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: 10012051, 10012052, 10012053, 10012054, 10012055, 10012056, 10012057, 10012058, 10012059, 10012060, 10012061.