Thunderstorm Wind, Dallas
- When
- June 26, 12:05 AM CST
- Where
- Dallas County
- Coordinates
- 41.830, -94.120
Tornado and Hail in Iowa, June 26, 1978
7 thunderstorm wind, 1 tornado, 1 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
- 1
- Property damage
- $2.5 million
- Crop damage
- None recorded
- Events
- 9
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
7 thunderstorm wind, 1 tornado, 1 hail. Local standard time, as filed.
Tornado, Poweshiek
- When
- June 26, 12:41 AM CST
- Where
- Poweshiek County
- Rating
- F2
- Path length
- 0.7 mi
- Path width
- 100 yd
- Injuries
- 1 direct, 0 indirect
- Property damage
- $2.5 million
- Coordinates
- 41.580, -92.530
Thunderstorm Wind, Polk
- When
- June 26, 12:45 AM CST
- Where
- Polk County
- Measured
- 52 kt (60 mph)
- Coordinates
- 41.580, -93.720
Thunderstorm Wind, Polk
- When
- June 26, 12:55 AM CST
- Where
- Polk County
- Measured
- 66 kt (76 mph)
- Coordinates
- 41.530, -93.670
Hail, Fayette
- When
- June 26, 2:10 AM CST
- Where
- Fayette County
- Measured
- 1.75 in hail
- Coordinates
- 41.800, -92.200
Thunderstorm Wind, Iowa
- When
- June 26, 2:30 AM CST
- Where
- Iowa County
- Measured
- 56 kt (64 mph)
- Coordinates
- 41.800, -92.170
Thunderstorm Wind, Keokuk
- When
- June 26, 2:30 AM CST
- Where
- Keokuk County
- Coordinates
- 40.620, -94.470
Thunderstorm Wind, Johnson
- When
- June 26, 2:40 AM CST
- Where
- Johnson County
- Coordinates
- 41.670, -91.550
Thunderstorm Wind, Linn
- When
- June 26, 2:45 AM CST
- Where
- Linn County
- Measured
- 80 kt (92 mph)
- Coordinates
- 41.880, -91.720
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.
- 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
- Tornado and Damaging Winds in Minnesota, June 26, 1978
- Tornadoes and Hail in Kansas, June 26, 1978
- Tornado and Damaging Winds in Ohio, June 26, 1978
- Tornadoes in Colorado, June 26, 1978
- Hail and Damaging Winds in Missouri, June 26, 1978
- Damaging Winds in West Virginia, June 26, 1978
- Hail and Damaging Wind in Virginia, June 26, 1978
- Hail in Texas, June 26, 1978
- Damaging Wind in Nebraska, June 26, 1978
- Damaging Wind in Illinois, June 26, 1978
- Damaging Wind in Michigan, June 26, 1978
- Damaging Wind in South Carolina, June 26, 1978
More
Every storm in Iowa in 1978Every state in 1978This day in weather historyThe tornado archive for Iowa, 1978
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: 10012715, 10012716, 10012717, 10012718, 10012719, 10012720, 10012721, 10012722, 10012723.