Hail, Cass
- When
- June 6, 7:32 AM CST
- Where
- Cass County
- Measured
- 2.75 in hail
- Coordinates
- 41.400, -95.020
Tornadoes and Hail in Iowa, June 6, 1980
12 hail, 3 thunderstorm wind, 2 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
- $2.8 million
- Crop damage
- None recorded
- Events
- 17
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
12 hail, 3 thunderstorm wind, 2 tornado. Local standard time, as filed.
Hail, Madison
- When
- June 6, 8:55 AM CST
- Where
- Madison County
- Measured
- 1.75 in hail
- Coordinates
- 41.330, -94.020
Tornado, Polk
- When
- June 6, 12:00 PM CST
- Where
- Polk County
- Rating
- F1
- Path length
- 1.3 mi
- Path width
- 40 yd
- Property damage
- $250,000
- Coordinates
- 41.600, -93.650
Hail, Polk
- When
- June 6, 12:05 PM CST
- Where
- Polk County
- Measured
- 1.75 in hail
- Coordinates
- 43.680, -93.620
Hail, Marion
- When
- June 6, 2:00 PM CST
- Where
- Marion County
- Measured
- 1.75 in hail
- Coordinates
- 41.320, -93.100
Hail, Humboldt
- When
- June 6, 3:30 PM CST
- Where
- Humboldt County
- Measured
- 1.75 in hail
- Coordinates
- 42.720, -94.220
Hail, Wright
- When
- June 6, 3:55 PM CST
- Where
- Wright County
- Measured
- 1.75 in hail
- Coordinates
- 42.670, -93.900
Hail, Hardin
- When
- June 6, 4:45 PM CST
- Where
- Hardin County
- Measured
- 1.75 in hail
- Coordinates
- 42.520, -93.530
Thunderstorm Wind, Hardin
- When
- June 6, 4:45 PM CST
- Where
- Hardin County
- Measured
- 52 kt (60 mph)
- Coordinates
- 42.520, -93.270
Hail, Hardin
- When
- June 6, 5:00 PM CST
- Where
- Hardin County
- Measured
- 1.75 in hail
- Coordinates
- 42.370, -93.100
Hail, Grundy
- When
- June 6, 5:35 PM CST
- Where
- Grundy County
- Measured
- 1.5 in hail
- Coordinates
- 42.370, -92.770
Thunderstorm Wind, Black Hawk
- When
- June 6, 5:40 PM CST
- Where
- Black Hawk County
- Coordinates
- 42.550, -92.400
Hail, Plymouth
- When
- June 6, 5:44 PM CST
- Where
- Plymouth County
- Measured
- 1 in hail
- Coordinates
- 42.820, -95.980
Thunderstorm Wind, O'Brien
- When
- June 6, 6:32 PM CST
- Where
- O'Brien County
- Measured
- 52 kt (60 mph)
- Coordinates
- 43.180, -95.870
Hail, Black Hawk
- When
- June 6, 6:35 PM CST
- Where
- Black Hawk County
- Measured
- 1 in hail
- Coordinates
- 42.480, -92.070
Hail, Jackson
- When
- June 6, 9:22 PM CST
- Where
- Jackson County
- Measured
- 1.75 in hail
- Coordinates
- 42.050, -90.400
Tornado, Plymouth
- When
- June 6, 11:05 PM CST
- Where
- Plymouth County
- Rating
- F1
- Path length
- 4.1 mi
- Path width
- 40 yd
- Property damage
- $2.5 million
- Coordinates
- 42.820, -96.280
What these are
- Hail
- Hail three-quarters of an inch or larger, or smaller hail that caused damage, filed with the largest stone measured.
- 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.
- 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 in Wisconsin, June 6, 1980
- Tornadoes in Ohio, June 6, 1980
- Tornado and Damaging Winds in Michigan, June 6, 1980
- Tornadoes and Hail in Nebraska, June 6, 1980
- Tornadoes and Hail in South Dakota, June 6, 1980
- Tornado and Damaging Winds in Indiana, June 6, 1980
- Damaging Winds in Minnesota, June 6, 1980
- Hail and Damaging Wind in Illinois, June 6, 1980
- Damaging Wind in Colorado, June 6, 1980
More
Every storm in Iowa in 1980Every state in 1980This day in weather historyThe tornado archive for Iowa, 1980
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: 10014784, 10014785, 10014786, 10014787, 10014788, 10014789, 10014790, 10014791, 10014792, 10014793, 10014794, 10014795, 10014796, 10014797, 10015651, 10015652, 10015653.