Thunderstorm Wind, Trempealeau
- When
- July 18, 1:45 PM CST
- Where
- Trempealeau County
- Coordinates
- 44.200, -91.180
Tornadoes and Damaging Winds in Wisconsin, July 18, 1971
3 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
- 1
- Injuries
- 2
- Property damage
- $750,000
- 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.
Event by event
3 tornado, 2 thunderstorm wind. Local standard time, as filed.
Tornado, Monroe
- When
- July 18, 2:00 PM CST
- Where
- Monroe County
- Rating
- F2
- Path length
- 1 mi
- Path width
- 100 yd
- Property damage
- $250,000
- Coordinates
- 44.120, -91.000
Thunderstorm Wind, La Crosse
- When
- July 18, 3:30 PM CST
- Where
- La Crosse County
- Measured
- 50 kt (58 mph)
- Coordinates
- 43.880, -91.280
Tornado, Dunn
- When
- July 18, 3:35 PM CST
- Where
- Dunn County
- Rating
- F2
- Path length
- 34 mi
- Path width
- 100 yd
- Property damage
- $250,000
- Coordinates
- 45.020, -92.200
Tornado, Eau Claire
- When
- July 18, 4:30 PM CST
- Where
- Eau Claire County
- Rating
- F2
- Path length
- 4.5 mi
- Path width
- 100 yd
- Deaths
- 1 direct, 0 indirect
- Injuries
- 2 direct, 0 indirect
- Property damage
- $250,000
- Coordinates
- 44.870, -91.530
The people who died
As the offices recorded each death: direct deaths were caused by the weather itself, indirect ones by something it set in motion.
| Event | Date | Age | Sex | Where | Kind |
|---|---|---|---|---|---|
| Tornado, Eau Claire | 1971-07-18 | Direct |
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.
After NWS Directive 10-1605, the rules offices file Storm Data by.
The same day elsewhere
- Tornado and Damaging Winds in Kentucky, July 18, 1971
- Tornado and Hail in Illinois, July 18, 1971
- Tornado in Texas, July 18, 1971
- Tornado and Damaging Wind in Minnesota, July 18, 1971
- Hail and Damaging Winds in Missouri, July 18, 1971
- Damaging Winds in Iowa, July 18, 1971
- Damaging Wind in Indiana, July 18, 1971
More
Every storm in Wisconsin in 1971Every state in 1971This day in weather historyThe tornado archive for Wisconsin, 1971
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: 10148735, 10148736, 10148737, 10148738, 10148953.