Hail, Polk
- When
- July 27, 3:31 PM CST
- Where
- Polk County
- Measured
- 2 in hail
- Coordinates
- 41.670, -93.550
Hail and Damaging Winds in Iowa, July 27, 1986
4 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
- 7
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
4 thunderstorm wind, 3 hail. Local standard time, as filed.
Hail, Allamakee
- When
- July 27, 7:00 PM CST
- Where
- Allamakee County
- Measured
- 1 in hail
- Coordinates
- 43.480, -91.550
Thunderstorm Wind, Winneshiek
- When
- July 27, 7:20 PM CST
- Where
- Winneshiek County
- Measured
- 52 kt (60 mph)
- Coordinates
- 43.200, -91.970
Thunderstorm Wind, Chickasaw
- When
- July 27, 7:25 PM CST
- Where
- Chickasaw County
- Measured
- 50 kt (58 mph)
- Coordinates
- 43.200, -92.220
Hail, Floyd
- When
- July 27, 7:56 PM CST
- Where
- Floyd County
- Measured
- 0.75 in hail
- Coordinates
- 43.070, -92.700
Thunderstorm Wind, Clayton
- When
- July 27, 8:10 PM CST
- Where
- Clayton County
- Measured
- 50 kt (58 mph)
- Coordinates
- 42.650, -91.200
Thunderstorm Wind, Clayton
- When
- July 27, 9:00 PM CST
- Where
- Clayton County
- Measured
- 50 kt (58 mph)
- Coordinates
- 42.750, -91.200
What these are
- Hail
- Hail three-quarters of an inch or larger, or smaller hail that caused damage, filed with the largest stone measured.
- 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.
After NWS Directive 10-1605, the rules offices file Storm Data by.
The same day elsewhere
- Tornadoes and Hail in North Dakota, July 27, 1986
- Hail and Damaging Winds in Wisconsin, July 27, 1986
- Damaging Winds in Georgia, July 27, 1986
- Hail and Damaging Winds in North Carolina, July 27, 1986
- Tornado and Hail in Minnesota, July 27, 1986
- Damaging Winds in South Carolina, July 27, 1986
- Hail in Nebraska, July 27, 1986
- Hail in Arkansas, July 27, 1986
- Damaging Wind in Alabama, July 27, 1986
- Damaging Wind in Kansas, July 27, 1986
More
Every storm in Iowa in 1986Every state in 1986This day in weather historyWarnings in Iowa, July 1986
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: 10013167, 10013168, 10013169, 10013170, 10013171, 10013172, 10013173.