Flash Flood in Rock Island County, Illinois

Flash Flood June 17, 2026 · Rock Island County, Illinois

Where the report was made, with tornadoes recorded within 15 miles over the years.

What the National Weather Service wrote

Law Enforcement reported that 77th St West was closed due to flooding. The time of the report was estimated based on radar.

The wider storm

A strong storm system for mid-June brought two rounds of thunderstorm on Wednesday June 17th. The strongest round of storms occurred during the morning hours that brough damaging winds (some significant), heavy rain, and two EF-1 tornadoes in Illinois which occurred in Monmouth and Warsaw.

Many trees fell and power lines were damaged, along with several reports of flash flooding. There were also 4-5 train cars that were pushed off the railroad just south of Monmouth, IL in Warren County due to significant straight-line winds (estimated near 100 mph). Additional train cars derailed as a result of these cars being blown off.

Began near Andalusia (41.4200, -90.6800).

Other tornadoes from the same storm system

2 more tornadoes the National Weather Service filed under this storm episode.

EF1 Warren County EF1 Hancock County

Source: NOAA Storm Events Database, event 1337550. Narratives are written by the National Weather Service forecast office that issued the report.

Tornadoes near your address

See every tornado that passed near a place you know, measured to its path.