Tornado, Harrison
- When
- September 12, 3:30 PM CST
- Where
- Harrison County
- Rating
- F2
- Path length
- 5.9 mi
- Path width
- 100 yd
- Property damage
- $25,000
- Coordinates
- 41.500, -95.700
Tornadoes and Hail in Iowa, September 12, 1972
4 tornado, 3 thunderstorm wind, 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
- 0
- Property damage
- $100,000
- Crop damage
- None recorded
- Events
- 8
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
4 tornado, 3 thunderstorm wind, 1 hail. Local standard time, as filed.
Hail, Harrison
- When
- September 12, 4:00 PM CST
- Where
- Harrison County
- Measured
- 1.75 in hail
- Coordinates
- 41.580, -95.780
Thunderstorm Wind, Harrison
- When
- September 12, 4:00 PM CST
- Where
- Harrison County
- Coordinates
- 41.580, -95.780
Thunderstorm Wind, Carroll
- When
- September 12, 5:00 PM CST
- Where
- Carroll County
- Coordinates
- 42.080, -95.080
Thunderstorm Wind, Sac
- When
- September 12, 5:15 PM CST
- Where
- Sac County
- Coordinates
- 42.380, -95.000
Tornado, Union
- When
- September 12, 6:00 PM CST
- Where
- Union County
- Rating
- F0
- Path length
- 0.5 mi
- Path width
- 100 yd
- Property damage
- $25,000
- Coordinates
- 41.050, -94.470
Tornado, Madison
- When
- September 12, 6:19 PM CST
- Where
- Madison County
- Rating
- F1
- Path length
- 19.9 mi
- Path width
- 200 yd
- Property damage
- $25,000
- Coordinates
- 41.170, -94.180
Tornado, Wright
- When
- September 12, 6:31 PM CST
- Where
- Wright County
- Rating
- F1
- Path width
- 100 yd
- Property damage
- $25,000
- Coordinates
- 42.820, -94.000
What these are
- 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.
- 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.
More
Every storm in Iowa in 1972Every state in 1972This day in weather historyThe tornado archive for Iowa, 1972
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: 10014693, 10014694, 10014695, 10014696, 10014697, 10014698, 10014699, 10014700.