Tornadoes and Hail in Wisconsin, July 30, 1977

Name: Tornadoes and Hail in Wisconsin, July 30, 1977
Start: 1977-07-30T17:20
End: 1977-07-30T22:45
Location: Wisconsin

July 30, 1977 · NWS R · 15 events in 12 counties and zones

9 tornado, 3 thunderstorm wind, 3 hail, 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

Open the live radar over this ground

The toll

Deaths: 1
Injuries: 28
Property damage: $36 million
Crop damage: None recorded
Events: 15

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 tornado, 3 thunderstorm wind, 3 hail. Local standard time, as filed.

Tornado, St. Croix

When: July 30, 5:20 PM CST
Where: St. Croix County
Rating: F3
Path length: 2.7 mi
Path width: 200 yd
Property damage: $2.5 million
Coordinates: 45.170, -92.220

Tornado, Polk

When: July 30, 5:28 PM CST
Where: Polk County
Rating: F3
Path width: 33 yd
Property damage: $2.5 million
Coordinates: 45.220, -92.180

Tornado, Barron

When: July 30, 5:32 PM CST
Where: Barron County
Rating: F3
Path length: 6.4 mi
Path width: 33 yd
Property damage: $2.5 million
Coordinates: 45.230, -92.150

Thunderstorm Wind, Bayfield

When: July 30, 5:45 PM CST
Where: Bayfield County
Coordinates: 46.330, -91.250

Tornado, Chippewa

When: July 30, 6:35 PM CST
Where: Chippewa County
Rating: F4
Path length: 19 mi
Path width: 300 yd
Injuries: 20 direct, 0 indirect
Property damage: $25 million
Coordinates: 45.100, -91.530

Tornado, Barron

When: July 30, 6:50 PM CST
Where: Barron County
Rating: F1
Path length: 6.6 mi
Path width: 100 yd
Property damage: $250,000
Coordinates: 45.370, -91.750

Tornado, Chippewa

When: July 30, 7:00 PM CST
Where: Chippewa County
Rating: F2
Path length: 16.5 mi
Path width: 1,000 yd
Deaths: 1 direct, 0 indirect
Injuries: 8 direct, 0 indirect
Property damage: $2.5 million
Coordinates: 45.180, -91.220

Tornado, Taylor

When: July 30, 7:25 PM CST
Where: Taylor County
Rating: F2
Path length: 6.5 mi
Path width: 1,000 yd
Coordinates: 45.300, -90.920

Tornado, Rusk

When: July 30, 7:45 PM CST
Where: Rusk County
Rating: F2
Path length: 11.5 mi
Path width: 1,000 yd
Coordinates: 45.380, -90.920

Thunderstorm Wind, Marathon

When: July 30, 8:23 PM CST
Where: Marathon County
Measured: 53 kt (61 mph)
Coordinates: 44.930, -89.630

Hail, Taylor

When: July 30, 8:45 PM CST
Where: Taylor County
Measured: 0.75 in hail
Coordinates: 45.320, -90.200

Thunderstorm Wind, Columbia

When: July 30, 9:15 PM CST
Where: Columbia County
Measured: 52 kt (60 mph)
Coordinates: 43.630, -89.770

Hail, Outagamie

When: July 30, 10:25 PM CST
Where: Outagamie County
Measured: 1 in hail
Coordinates: 44.270, -88.400

Hail, Winnebago

When: July 30, 10:35 PM CST
Where: Winnebago County
Measured: 0.75 in hail
Coordinates: 44.180, -88.450

Tornado, Brown

When: July 30, 10:45 PM CST
Where: Brown County
Rating: F1
Path length: 11.8 mi
Path width: 100 yd
Property damage: $250,000
Coordinates: 44.230, -88.100

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, Chippewa	1977-07-30				Direct

What these are

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.
Hail: Hail three-quarters of an inch or larger, or smaller hail that caused damage, filed with the largest stone measured.

After NWS Directive 10-1605, the rules offices file Storm Data by.

The same day elsewhere

Every storm in Wisconsin in 1977 Every state in 1977 This day in weather history The tornado archive for Wisconsin, 1977

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: 10148022, 10148023, 10148024, 10148025, 10148026, 10148027, 10148028, 10148029, 10148030, 10148031, 10148032, 10148033, 10148034, 10148248, 10148249.