Thunderstorm Wind, Jefferson
- When
- June 20, 1:05 PM CST
- Where
- Jefferson County
- Coordinates
- 43.000, -88.800
Tornadoes and Hail in Wisconsin, June 20, 1979
7 thunderstorm wind, 4 hail, 3 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
- 4
- Property damage
- $525,000
- Crop damage
- None recorded
- Events
- 14
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
7 thunderstorm wind, 4 hail, 3 tornado. Local standard time, as filed.
Hail, Dodge
- When
- June 20, 1:10 PM CST
- Where
- Dodge County
- Measured
- 1.75 in hail
- Coordinates
- 43.470, -88.830
Thunderstorm Wind, Wood
- When
- June 20, 1:20 PM CST
- Where
- Wood County
- Coordinates
- 44.630, -90.180
Thunderstorm Wind, Winnebago
- When
- June 20, 1:43 PM CST
- Where
- Winnebago County
- Coordinates
- 43.880, -88.680
Tornado, Winnebago
- When
- June 20, 1:45 PM CST
- Where
- Winnebago County
- Rating
- F1
- Path width
- 33 yd
- Injuries
- 2 direct, 0 indirect
- Property damage
- $250,000
- Coordinates
- 44.020, -88.650
Hail, Waukesha
- When
- June 20, 2:00 PM CST
- Where
- Waukesha County
- Measured
- 1.75 in hail
- Coordinates
- 42.950, -88.350
Thunderstorm Wind, Fond du Lac
- When
- June 20, 2:00 PM CST
- Where
- Fond du Lac County
- Measured
- 78 kt (90 mph)
- Coordinates
- 43.780, -88.450
Thunderstorm Wind, Calumet
- When
- June 20, 2:20 PM CST
- Where
- Calumet County
- Coordinates
- 44.030, -88.170
Thunderstorm Wind, Brown
- When
- June 20, 2:25 PM CST
- Where
- Brown County
- Coordinates
- 44.250, -88.170
Tornado, Marinette
- When
- June 20, 2:30 PM CST
- Where
- Marinette County
- Rating
- F1
- Path width
- 33 yd
- Injuries
- 1 direct, 0 indirect
- Property damage
- $250,000
- Coordinates
- 45.630, -88.350
Hail, Racine
- When
- June 20, 2:42 PM CST
- Where
- Racine County
- Measured
- 1.75 in hail
- Coordinates
- 42.670, -88.270
Hail, Waukesha
- When
- June 20, 2:50 PM CST
- Where
- Waukesha County
- Measured
- 1.75 in hail
- Coordinates
- 43.070, -88.150
Tornado, Racine
- When
- June 20, 3:15 PM CST
- Where
- Racine County
- Rating
- F1
- Path width
- 33 yd
- Injuries
- 1 direct, 0 indirect
- Property damage
- $25,000
- Coordinates
- 42.700, -87.900
Thunderstorm Wind, Milwaukee
- When
- June 20, 4:06 PM CST
- Where
- Milwaukee County
- Coordinates
- 43.030, -87.970
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.
- 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.
After NWS Directive 10-1605, the rules offices file Storm Data by.
The same day elsewhere
- Tornadoes and Hail in Michigan, June 20, 1979
- Tornado and Hail in Indiana, June 20, 1979
- Tornado in Iowa, June 20, 1979
- Hail and Damaging Winds in Oklahoma, June 20, 1979
- Hail and Damaging Winds in Ohio, June 20, 1979
- Hail and Damaging Wind in Illinois, June 20, 1979
- Hail and Damaging Winds in Kentucky, June 20, 1979
- Hail and Damaging Winds in Arkansas, June 20, 1979
- Damaging Wind in Tennessee, June 20, 1979
- Tornado in Florida, June 20, 1979
- Damaging Wind in Missouri, June 20, 1979
More
Every storm in Wisconsin in 1979Every state in 1979This day in weather historyThe tornado archive for Wisconsin, 1979
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: 10148385, 10148386, 10148387, 10148388, 10146909, 10146910, 10146911, 10146912, 10146913, 10146914, 10146915, 10146916, 10146917, 10146918.