Hail, La Crosse
- When
- August 15, 9:30 AM CST
- Where
- La Crosse County
- Measured
- 0.75 in hail
- Coordinates
- 43.880, -91.280
Tornadoes and Hail in Wisconsin, August 15, 1966
3 hail, 2 tornado, 2 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
- 7
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, 2 thunderstorm wind. Local standard time, as filed.
Tornado, Sauk
- When
- August 15, 1:00 PM CST
- Where
- Sauk County
- Rating
- F2
- Path length
- 29.3 mi
- Path width
- 200 yd
- Injuries
- 1 direct, 0 indirect
- Property damage
- $250,000
- Coordinates
- 43.420, -90.130
Hail, Sauk
- When
- August 15, 1:10 PM CST
- Where
- Sauk County
- Measured
- 2 in hail
- Coordinates
- 43.500, -89.900
Thunderstorm Wind, Sauk
- When
- August 15, 1:10 PM CST
- Where
- Sauk County
- Coordinates
- 43.500, -89.900
Hail, Adams
- When
- August 15, 1:20 PM CST
- Where
- Adams County
- Measured
- 0.75 in hail
- Coordinates
- 43.880, -89.780
Tornado, Columbia
- When
- August 15, 1:50 PM CST
- Where
- Columbia County
- Rating
- F2
- Path length
- 4.9 mi
- Path width
- 200 yd
- Property damage
- $250,000
- Coordinates
- 43.570, -89.580
Thunderstorm Wind, Winnebago
- When
- August 15, 4:00 PM CST
- Where
- Winnebago County
- Measured
- 58 kt (67 mph)
- Coordinates
- 44.000, -88.580
What these are
- Hail
- Hail three-quarters of an inch or larger, or smaller hail that caused damage, filed with the largest stone measured.
- 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.
The same day elsewhere
More
Every storm in Wisconsin in 1966Every state in 1966This day in weather historyThe tornado archive for Wisconsin, 1966
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: 10147261, 10147262, 10148035, 10148036, 10148037, 10148038, 10148039.