Thunderstorm Wind, Iowa
- When
- June 22, 2:00 PM CST
- Where
- Iowa County
- Coordinates
- 41.700, -92.000
Tornadoes and Damaging Winds in Iowa, June 22, 1964
9 tornado, 8 thunderstorm wind, 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
- $1.8 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
9 tornado, 8 thunderstorm wind. Local standard time, as filed.
Thunderstorm Wind, Iowa
- When
- June 22, 2:05 PM CST
- Where
- Iowa County
- Coordinates
- 41.580, -92.080
Thunderstorm Wind, Linn
- When
- June 22, 2:05 PM CST
- Where
- Linn County
- Coordinates
- 41.880, -91.680
Thunderstorm Wind, Clinton
- When
- June 22, 2:23 PM CST
- Where
- Clinton County
- Measured
- 57 kt (66 mph)
- Coordinates
- 41.880, -90.180
Tornado, Carroll
- When
- June 22, 2:30 PM CST
- Where
- Carroll County
- Rating
- F1
- Path length
- 0.5 mi
- Path width
- 100 yd
- Property damage
- $25,000
- Coordinates
- 42.100, -90.170
Tornado, Dallas
- When
- June 22, 6:30 PM CST
- Where
- Dallas County
- Rating
- F2
- Path length
- 9.7 mi
- Path width
- 200 yd
- Property damage
- $250,000
- Coordinates
- 41.600, -93.780
Thunderstorm Wind, Dallas
- When
- June 22, 6:30 PM CST
- Where
- Dallas County
- Measured
- 90 kt (104 mph)
- Coordinates
- 41.780, -94.080
Tornado, Decatur
- When
- June 22, 6:40 PM CST
- Where
- Decatur County
- Rating
- F2
- Path length
- 1 mi
- Path width
- 200 yd
- Property damage
- $250,000
- Coordinates
- 40.730, -93.750
Thunderstorm Wind, Decatur
- When
- June 22, 6:50 PM CST
- Where
- Decatur County
- Coordinates
- 40.700, -93.780
Tornado, Clarke
- When
- June 22, 7:00 PM CST
- Where
- Clarke County
- Rating
- F2
- Path length
- 12.8 mi
- Path width
- 400 yd
- Property damage
- $250,000
- Coordinates
- 40.930, -93.980
Tornado, Fremont
- When
- June 22, 7:00 PM CST
- Where
- Fremont County
- Rating
- F3
- Path length
- 8 mi
- Path width
- 400 yd
- Property damage
- $250,000
- Coordinates
- 40.750, -95.600
Tornado, Fremont
- When
- June 22, 7:00 PM CST
- Where
- Fremont County
- Rating
- F4
- Path length
- 11.9 mi
- Path width
- 400 yd
- Property damage
- $250,000
- Coordinates
- 40.700, -95.450
Tornado, Tama
- When
- June 22, 7:15 PM CST
- Where
- Tama County
- Rating
- F1
- Path length
- 2 mi
- Path width
- 300 yd
- Property damage
- $250,000
- Coordinates
- 42.200, -92.700
Tornado, Marion
- When
- June 22, 7:30 PM CST
- Where
- Marion County
- Rating
- F2
- Path length
- 6.4 mi
- Path width
- 200 yd
- Property damage
- $25,000
- Coordinates
- 41.400, -92.900
Thunderstorm Wind, Dallas
- When
- June 22, 7:30 PM CST
- Where
- Dallas County
- Coordinates
- 41.580, -93.900
Thunderstorm Wind, Wapello
- When
- June 22, 8:09 PM CST
- Where
- Wapello County
- Measured
- 53 kt (61 mph)
- Coordinates
- 41.080, -92.500
Tornado, Monroe
- When
- June 22, 8:45 PM CST
- Where
- Monroe County
- Rating
- F1
- Path length
- 5.4 mi
- Path width
- 200 yd
- Property damage
- $250,000
- Coordinates
- 41.050, -92.800
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 South Dakota, June 22, 1964
- Tornadoes and Hail in Kansas, June 22, 1964
- Tornado and Damaging Wind in Missouri, June 22, 1964
- Tornado in South Carolina, June 22, 1964
- Hail and Damaging Winds in Nebraska, June 22, 1964
- Hail and Damaging Wind in Wisconsin, June 22, 1964
- Damaging Wind in Michigan, June 22, 1964
- Damaging Wind in Mississippi, June 22, 1964
- Damaging Wind in North Carolina, June 22, 1964
- Damaging Wind in Illinois, June 22, 1964
- Tornado in Texas, June 22, 1964
- Damaging Wind in Oklahoma, June 22, 1964
More
Every storm in Iowa in 1964Every state in 1964This day in weather historyThe tornado archive for Iowa, 1964
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: 10012204, 10012205, 10012206, 10012207, 10012208, 10012209, 10012210, 10012211, 10012212, 10012213, 10012214, 10012215, 10012216, 10012217, 10012218, 10012219, 10012220.