Thunderstorm Wind, Story
- When
- April 27, 12:15 AM CST
- Where
- Story County
- Coordinates
- 42.120, -93.380
Hail and Damaging Winds in Iowa, April 27, 1984
11 thunderstorm wind, 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
- 2
- Property damage
- None recorded
- Crop damage
- None recorded
- Events
- 13
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
11 thunderstorm wind, 2 hail. Local standard time, as filed.
Thunderstorm Wind, Franklin
- When
- April 27, 12:55 AM CST
- Where
- Franklin County
- Coordinates
- 42.550, -93.050
Thunderstorm Wind, Marion
- When
- April 27, 1:00 AM CST
- Where
- Marion County
- Coordinates
- 41.320, -93.100
Thunderstorm Wind, Mitchell
- When
- April 27, 1:16 AM CST
- Where
- Mitchell County
- Coordinates
- 43.280, -92.930
Thunderstorm Wind, Bremer
- When
- April 27, 1:16 AM CST
- Where
- Bremer County
- Coordinates
- 42.720, -92.500
Thunderstorm Wind, Bremer
- When
- April 27, 1:32 AM CST
- Where
- Bremer County
- Coordinates
- 42.720, -92.500
Hail, Chickasaw
- When
- April 27, 1:33 AM CST
- Where
- Chickasaw County
- Measured
- 1.75 in hail
- Coordinates
- 43.050, -92.320
Thunderstorm Wind, Mitchell
- When
- April 27, 1:42 AM CST
- Where
- Mitchell County
- Coordinates
- 43.350, -92.780
Thunderstorm Wind, Floyd
- When
- April 27, 1:47 AM CST
- Where
- Floyd County
- Coordinates
- 43.080, -92.700
Thunderstorm Wind, Benton
- When
- April 27, 2:00 AM CST
- Where
- Benton County
- Injuries
- 2 direct, 0 indirect
- Coordinates
- 42.250, -92.100
Hail, Winneshiek
- When
- April 27, 2:18 AM CST
- Where
- Winneshiek County
- Measured
- 0.75 in hail
- Coordinates
- 43.300, -91.800
Thunderstorm Wind, Clayton
- When
- April 27, 2:30 AM CST
- Where
- Clayton County
- Coordinates
- 42.680, -91.530
Thunderstorm Wind, Delaware
- When
- April 27, 2:40 AM CST
- Where
- Delaware County
- Coordinates
- 42.600, -91.450
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
- Tornadoes and Hail in Wisconsin, April 27, 1984
- Tornadoes and Hail in Illinois, April 27, 1984
- Tornadoes and Hail in Oklahoma, April 27, 1984
- Tornado in Kansas, April 27, 1984
- Tornado and Hail in Michigan, April 27, 1984
- Damaging Winds in Minnesota, April 27, 1984
- Hail and Damaging Winds in Georgia, April 27, 1984
- Tornado and Hail in Missouri, April 27, 1984
- Hail and Damaging Wind in Indiana, April 27, 1984
- Hail and Damaging Wind in Arkansas, April 27, 1984
- Damaging Winds in South Dakota, April 27, 1984
- Damaging Wind in Alabama, April 27, 1984
More
Every storm in Iowa in 1984Every state in 1984This day in weather history
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: 10014109, 10014110, 10014111, 10014112, 10014113, 10014114, 10014115, 10014116, 10014117, 10014118, 10014119, 10014120, 10014121.