Tornado, Iron
- When
- August 15, 2:00 PM CST
- Where
- Iron County
- Rating
- F1
- Path length
- 0.5 mi
- Path width
- 50 yd
- Injuries
- 2 direct, 0 indirect
- Property damage
- $25,000
- Coordinates
- 46.050, -88.700
Tornadoes and Hail in Michigan, August 15, 1978
3 tornado, 2 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
- 3
- Property damage
- $525,000
- 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 tornado, 2 thunderstorm wind, 1 hail. Local standard time, as filed.
Thunderstorm Wind, Dickinson
- When
- August 15, 7:30 PM CST
- Where
- Dickinson County
- Coordinates
- 46.000, -87.830
Thunderstorm Wind, Leelanau
- When
- August 15, 10:55 PM CST
- Where
- Leelanau County
- Coordinates
- 44.900, -86.000
Tornado, Oceana
- When
- August 15, 11:05 PM CST
- Where
- Oceana County
- Rating
- F2
- Path length
- 0.8 mi
- Path width
- 333 yd
- Injuries
- 1 direct, 0 indirect
- Property damage
- $250,000
- Coordinates
- 43.550, -86.530
Hail, Lake
- When
- August 15, 11:05 PM CST
- Where
- Lake County
- Measured
- 1.25 in hail
- Coordinates
- 44.030, -85.850
Tornado, Leelanau
- When
- August 15, 11:20 PM CST
- Where
- Leelanau County
- Path length
- 2.3 mi
- Path width
- 160 yd
- Property damage
- $250,000
- Coordinates
- 44.980, -85.680
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.
- 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.
- 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 Damaging Winds in Illinois, August 15, 1978
- Tornado and Hail in Wisconsin, August 15, 1978
- Hail and Damaging Winds in Oklahoma, August 15, 1978
- Tornadoes and Hail in Texas, August 15, 1978
- Damaging Wind in Kansas, August 15, 1978
- Damaging Wind in Minnesota, August 15, 1978
- Damaging Wind in Florida, August 15, 1978
- Damaging Wind in Missouri, August 15, 1978
- Tornado in Washington, August 15, 1978
More
Every storm in Michigan in 1978Every state in 1978This day in weather historyThe tornado archive for Michigan, 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: 10038743, 10038744, 10038745, 10038746, 10038747, 10038748.