Thunderstorm Wind, Monona
- When
- June 29, 8:00 PM CST
- Where
- Monona County
- Measured
- 62 kt (71 mph)
- Coordinates
- 42.170, -95.800
Tornadoes and Damaging Winds in Iowa, June 29, 1986
11 thunderstorm wind, 3 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
- 1
- Property damage
- $5.3 million
- Crop damage
- None recorded
- Events
- 14
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, 3 tornado. Local standard time, as filed.
Thunderstorm Wind, Harrison
- When
- June 29, 8:30 PM CST
- Where
- Harrison County
- Measured
- 52 kt (60 mph)
- Coordinates
- 41.850, -95.600
Thunderstorm Wind, Harrison
- When
- June 29, 8:30 PM CST
- Where
- Harrison County
- Measured
- 52 kt (60 mph)
- Injuries
- 1 direct, 0 indirect
- Coordinates
- 41.800, -96.030
Thunderstorm Wind, Crawford
- When
- June 29, 8:45 PM CST
- Where
- Crawford County
- Coordinates
- 41.880, -95.250
Thunderstorm Wind, Dickinson
- When
- June 29, 8:47 PM CST
- Where
- Dickinson County
- Measured
- 61 kt (70 mph)
- Coordinates
- 43.430, -95.100
Thunderstorm Wind, Shelby
- When
- June 29, 8:50 PM CST
- Where
- Shelby County
- Measured
- 52 kt (60 mph)
- Coordinates
- 41.650, -95.330
Thunderstorm Wind, Shelby
- When
- June 29, 8:50 PM CST
- Where
- Shelby County
- Measured
- 52 kt (60 mph)
- Coordinates
- 41.830, -95.350
Tornado, Guthrie
- When
- June 29, 9:05 PM CST
- Where
- Guthrie County
- Rating
- F2
- Path length
- 1 mi
- Path width
- 50 yd
- Property damage
- $2.5 million
- Coordinates
- 41.850, -94.570
Thunderstorm Wind, Audubon
- When
- June 29, 9:15 PM CST
- Where
- Audubon County
- Measured
- 52 kt (60 mph)
- Coordinates
- 41.580, -94.880
Tornado, Guthrie
- When
- June 29, 9:50 PM CST
- Where
- Guthrie County
- Rating
- F2
- Path length
- 2 mi
- Path width
- 73 yd
- Property damage
- $250,000
- Coordinates
- 41.520, -94.530
Thunderstorm Wind, Adair
- When
- June 29, 10:00 PM CST
- Where
- Adair County
- Measured
- 52 kt (60 mph)
- Coordinates
- 41.200, -94.600
Thunderstorm Wind, Adams
- When
- June 29, 10:10 PM CST
- Where
- Adams County
- Measured
- 52 kt (60 mph)
- Coordinates
- 40.980, -94.730
Tornado, Polk
- When
- June 29, 10:35 PM CST
- Where
- Polk County
- Rating
- F2
- Path length
- 5 mi
- Path width
- 50 yd
- Property damage
- $2.5 million
- Coordinates
- 41.580, -93.730
Thunderstorm Wind, Iowa
- When
- June 29, 11:30 PM CST
- Where
- Iowa County
- Measured
- 52 kt (60 mph)
- Coordinates
- 41.800, -92.070
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.
After NWS Directive 10-1605, the rules offices file Storm Data by.
The same day elsewhere
- Tornadoes and Hail in Nebraska, June 29, 1986
- Tornado and Damaging Wind in North Dakota, June 29, 1986
- Hail and Damaging Winds in New Hampshire, June 29, 1986
- Hail and Damaging Winds in Maine, June 29, 1986
- Tornadoes and Hail in South Dakota, June 29, 1986
- Tornado and Hail in Montana, June 29, 1986
- Damaging Winds in North Carolina, June 29, 1986
- Damaging Winds in Kansas, June 29, 1986
- Damaging Wind in Massachusetts, June 29, 1986
- Hail in Wyoming, June 29, 1986
More
Every storm in Iowa in 1986Every state in 1986This day in weather historyThe tornado archive for Iowa, 1986Warnings in Iowa, June 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: 10015087, 10015088, 10015089, 10015090, 10015091, 10015092, 10015093, 10015094, 10015095, 10015096, 10015097, 10015098, 10015099, 10015100.