Tornado, Winnebago
- When
- August 28, 12:42 PM CST
- Where
- Winnebago County
- Rating
- F1
- Path length
- 3 mi
- Path width
- 103 yd
- Property damage
- $25,000
- Coordinates
- 42.300, -89.350
Tornadoes and Hail in Illinois, August 28, 1990
4 thunderstorm wind, 3 tornado, 2 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
The toll
- Deaths
- 29
- Injuries
- 350
- Property damage
- $250 million
- Crop damage
- None recorded
- Events
- 9
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
4 thunderstorm wind, 3 tornado, 2 hail. Local standard time, as filed.
Hail, Winnebago
- When
- August 28, 1:10 PM CST
- Where
- Winnebago County
- Measured
- 2.5 in hail
- Coordinates
- 42.200, -89.100
Thunderstorm Wind, De Kalb
- When
- August 28, 1:55 PM CST
- Where
- De Kalb County
- Measured
- 80 kt (92 mph)
- Coordinates
- 41.880, -88.730
Thunderstorm Wind, Kane
- When
- August 28, 1:55 PM CST
- Where
- Kane County
- Measured
- 80 kt (92 mph)
- Coordinates
- 41.920, -88.370
Thunderstorm Wind, Kendall
- When
- August 28, 1:55 PM CST
- Where
- Kendall County
- Measured
- 80 kt (92 mph)
- Coordinates
- 41.680, -88.370
Tornado, Kendall
- When
- August 28, 2:30 PM CST
- Where
- Kendall County
- Rating
- F5
- Path length
- 5.2 mi
- Path width
- 600 yd
- Property damage
- $250,000
- Coordinates
- 41.680, -88.350
Hail, Kane
- When
- August 28, 2:30 PM CST
- Where
- Kane County
- Measured
- 1.25 in hail
- Coordinates
- 41.770, -88.320
Tornado, Will
- When
- August 28, 2:37 PM CST
- Where
- Will County
- Rating
- F5
- Path length
- 11.2 mi
- Path width
- 600 yd
- Deaths
- 29 direct, 0 indirect
- Injuries
- 350 direct, 0 indirect
- Property damage
- $250 million
- Coordinates
- 41.630, -88.250
Thunderstorm Wind, Kankakee
- When
- August 28, 3:45 PM CST
- Where
- Kankakee County
- Coordinates
- 41.170, -87.670
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.
- Hail
- Hail three-quarters of an inch or larger, or smaller hail that caused damage, filed with the largest stone measured.
- 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
- Tornadoes and Hail in New York, August 28, 1990
- Hail and Damaging Winds in Indiana, August 28, 1990
- Hail and Damaging Winds in Pennsylvania, August 28, 1990
- Tornado and Hail in Michigan, August 28, 1990
- Hail and Damaging Winds in Ohio, August 28, 1990
- Damaging Winds in Kentucky, August 28, 1990
- Hail in South Dakota, August 28, 1990
- Damaging Winds in New Jersey, August 28, 1990
- Hail in Iowa, August 28, 1990
- Damaging Winds in Georgia, August 28, 1990
- Damaging Winds in Texas, August 28, 1990
- Damaging Wind in Florida, August 28, 1990
More
Every storm in Illinois in 1990Every state in 1990This day in weather historyThe tornado archive for Illinois, 1990Warnings in Illinois, August 1990
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: 10002518, 10002519, 10002520, 10002521, 10002522, 10002523, 10003372, 10003586, 10003587.