Flood, La Salle
- When
- July 6, 5:00 AM CST to 8:00 AM CST
- Where
- La Salle County, Countywide
- Reported by
- UTILITY COMPANY
- Coordinates
- 41.344, -88.886 (the zone’s center; the record gives no point)
A narrow band of thunderstorms dumped between three and four inches of rain in less than three hours over parts of north central and east central Illinois. In La Salle County the heavy rain caused a portion of the Spring Valley Road to collapse, leaving a hole about 12 feet wide and 10 feet deep.
Every event with a place to put it; 4 filed by county or forecast zone are drawn at its center, in a lighter ring. 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 episode as NWS LOT wrote it up.
A narrow band of thunderstorms dumped between three and four inches of rain in less than three hours over parts of north central and east central Illinois. In La Salle County the heavy rain caused a portion of the Spring Valley Road to collapse, leaving a hole about 12 feet wide and 10 feet deep. Street and basement flooding and flooding of farm fields occured in Streator, Piper City, Chatsworth, Onarga, and Cissna Park. State Road 115 was closed in Piper City. Some rainfall amounts included 3.25 inches at Piper City, 3.2 inches at Pontiac, 3.8 inches at Cissna Park and 3.1 inches at Streator.
The national radar mosaic for the moment the first event began.
4 flood. Local standard time, as filed.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in Illinois in 1998Every state in 1998This day in weather historyWarnings in Illinois, July 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: 5654420, 5654421, 5654422, 5654423.