Michigan, 1966Tornado and Damaging Winds in Michigan, August 15, 1966
August 15, 1966 · 5 events in 5 counties and zones
4 thunderstorm wind, 1 tornado, as filed by the National Weather Service.
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
Open the live radar over this ground
- Deaths
- 0
- Injuries
- 0
- Property damage
- None recorded
- Crop damage
- None recorded
- Events
- 5
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.
Tornado, Mason
- When
- August 15, 3:00 PM CST
- Where
- Mason County
- Rating
- F0
- Path width
- 33 yd
- Coordinates
- 43.930, -86.280
Thunderstorm Wind,
- When
- August 15, 5:40 PM CST
- Where
- County
- Coordinates
- 43.880, -86.500
Thunderstorm Wind, Oceana
- When
- August 15, 5:50 PM CST
- Where
- Oceana County
- Coordinates
- 43.700, -86.400
Thunderstorm Wind, Montcalm
- When
- August 15, 9:00 PM CST
- Where
- Montcalm County
- Coordinates
- 43.280, -85.000
Thunderstorm Wind, Eaton
- When
- August 15, 9:30 PM CST
- Where
- Eaton County
- Coordinates
- 42.580, -84.680
- 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.
After NWS Directive 10-1605, the rules offices file Storm Data by.
- Tornadoes and Hail in Wisconsin, August 15, 19661 injured · $500,000 · F2 · 7 events
- Hail in Missouri, August 15, 19662.25 in hail · 3 events
- Hail and Damaging Wind in Illinois, August 15, 19660.75 in hail · 2 events
- Tornado in Florida, August 15, 1966$250 · F0 · 1 event
- Damaging Wind in Iowa, August 15, 196652 kt wind · 1 event
- Damaging Wind in Pennsylvania, August 15, 19661 event
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: 10040992, 10040993, 10040994, 10040995, 10040996.