1 tornado, as filed by the National Weather Service.
Every event with a place to put it. Tap one for its entry below.
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.
The Lincoln radar (KILX), 85 km away, was scanning. The volume nearest the first event began at 21:10 UTC.
1 tornado. Local standard time, as filed.
A tornado touched down near Clear Lake. It caused minor damage to 5 cabins and tore part of the roof off of another one. Also, numerous trees were blown down. No injuries were reported and no damage estimate was available.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in Illinois in 1998Every state in 1998This day in weather historyThe tornado archive for Illinois, 1998Warnings in Illinois, April 1998
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: 5641312.