08/28/2026
On August 28, 1990, between 3:15 p.m. and 3:45 p.m. CDT, a violent F-5 tornado ripped through a portion of Kendall and Will counties, taking the lives of 29 people and injuring 350. The tornado left a 16.4 mile-long damage path which ranged from 600 yards to a half a mile in width. An estimated total of $160 million dollars in damages was added up with a total of 470 homes destroyed and 1000 damaged.
Not only was this F-5 tornado disastrous, it was also very unusual for several reasons:
The Plainfield tornado was the first tornado with a rating greater than F-3 to occur during the month of August in the state of Illinois (official NWS tornado records date back to 1950).
It was the second killer tornado since 1950 to occur during the month of August in Illinois.
This tornado remains the only F-5/EF-5 rated tornado documented in the United States during the month of August.
The tornado had low clouds and rain surrounding it, making it difficult to see. Because of this, no known photographs or videos of this tornado exist.
The tornado approached from the northwest; most tornadoes approach from the southwest.
Photo 1: Will County Historical Museum
Photos 2-4: National Weather Service