Thunderstorm Wind, Buffalo
- When
- May 21, 5:35 PM CST
- Where
- Buffalo County
- Coordinates
- 44.580, -91.500
Tornado and Damaging Winds in Wisconsin, May 21, 1970
9 thunderstorm wind, 1 tornado, 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
- None recorded
- Crop damage
- None recorded
- Events
- 10
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
9 thunderstorm wind, 1 tornado. Local standard time, as filed.
Thunderstorm Wind, Shawano
- When
- May 21, 7:15 PM CST
- Where
- Shawano County
- Coordinates
- 44.780, -88.580
Thunderstorm Wind, Oconto
- When
- May 21, 7:40 PM CST
- Where
- Oconto County
- Coordinates
- 44.700, -88.180
Tornado, Brown
- When
- May 21, 8:10 PM CST
- Where
- Brown County
- Rating
- F0
- Path length
- 2 mi
- Path width
- 33 yd
- Coordinates
- 44.580, -88.000
Thunderstorm Wind, Brown
- When
- May 21, 8:15 PM CST
- Where
- Brown County
- Coordinates
- 44.500, -88.080
Thunderstorm Wind, Kewaunee
- When
- May 21, 8:35 PM CST
- Where
- Kewaunee County
- Coordinates
- 44.500, -87.680
Thunderstorm Wind, Kewaunee
- When
- May 21, 8:45 PM CST
- Where
- Kewaunee County
- Coordinates
- 44.380, -87.580
Thunderstorm Wind, Kewaunee
- When
- May 21, 9:00 PM CST
- Where
- Kewaunee County
- Coordinates
- 44.580, -87.400
Thunderstorm Wind, Kewaunee
- When
- May 21, 9:00 PM CST
- Where
- Kewaunee County
- Coordinates
- 44.500, -87.500
Thunderstorm Wind, Manitowoc
- When
- May 21, 9:15 PM CST
- Where
- Manitowoc County
- Coordinates
- 44.080, -87.680
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
More
Every storm in Wisconsin in 1970Every state in 1970This day in weather historyThe tornado archive for Wisconsin, 1970
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: 10146706, 10146707, 10146708, 10146709, 10146710, 10146711, 10146712, 10146713, 10146714, 10146715.