Thunderstorm Wind, Allamakee
- When
- August 5, 3:00 AM CST
- Where
- Allamakee County
- Coordinates
- 43.330, -91.500
Tornadoes and Hail in Iowa, August 5, 1979
3 hail, 2 tornado, 1 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
- 1
- Property damage
- $500,000
- Crop damage
- None recorded
- Events
- 6
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
3 hail, 2 tornado, 1 thunderstorm wind. Local standard time, as filed.
Tornado, Clinton
- When
- August 5, 5:25 PM CST
- Where
- Clinton County
- Rating
- F1
- Path length
- 1.3 mi
- Path width
- 300 yd
- Injuries
- 1 direct, 0 indirect
- Property damage
- $250,000
- Coordinates
- 41.870, -90.380
Hail, Clinton
- When
- August 5, 6:15 PM CST
- Where
- Clinton County
- Measured
- 1 in hail
- Coordinates
- 41.830, -90.330
Hail, Clinton
- When
- August 5, 6:55 PM CST
- Where
- Clinton County
- Measured
- 1.75 in hail
- Coordinates
- 41.750, -90.380
Hail, Clinton
- When
- August 5, 7:05 PM CST
- Where
- Clinton County
- Measured
- 0.75 in hail
- Coordinates
- 41.670, -90.350
Tornado, Scott
- When
- August 5, 7:55 PM CST
- Where
- Scott County
- Rating
- F1
- Path length
- 1 mi
- Path width
- 150 yd
- Property damage
- $250,000
- Coordinates
- 41.530, -90.520
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
- Tornadoes and Hail in Illinois, August 5, 1979
- Tornado and Damaging Wind in Florida, August 5, 1979
- Hail and Damaging Winds in Indiana, August 5, 1979
- Hail and Damaging Wind in Wisconsin, August 5, 1979
- Damaging Winds in Ohio, August 5, 1979
- Hail in Minnesota, August 5, 1979
- Hail in Michigan, August 5, 1979
- Damaging Wind in Louisiana, August 5, 1979
More
Every storm in Iowa in 1979Every state in 1979This day in weather historyThe tornado archive for Iowa, 1979
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: 10013886, 10013887, 10013888, 10013889, 10013890, 10013891.