Flood, Boone
- When
- June 13, 12:00 PM CST to June 17, 12:00 PM CST
- Where
- Boone forecast zone
- Reported by
- OFFICIAL NWS OBS.
- Coordinates
- 42.323, -88.823 (the zone’s center; the record gives no point)
Rainfall of between 1 and 2 inches had fallen during the last part of the second week of June. This rainfall set the stage for flooding.
Every event with a place to put it; 5 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.
Rainfall of between 1 and 2 inches had fallen during the last part of the second week of June. This rainfall set the stage for flooding. Between 4 and 6 inches of rain fell over parts of Ogle, Boone, Dekalb and Mc Henry counties on Sunday June 13. In Boone County, residents along Coon Creek near Belvidere sandbagged homes in the River Reach subdivision. The Bel-Air Country Club was inundated. Residents along Lawrenceville Road and in Jellystone Park were told to leave their homes. Around 60 children at a day camp were taken to a nearby school. Homes were flooded in Capron. The Kiswaukee River at Belvidere crested at 13.9 feet, .3 feet below the record crest. In McHenry County, flooding occurred along the Upper Fox River and Nippersink Creek. It was the worst flooding in 6 years. At Four Colonies Park near Crystal Lake water was knee deep. Homes and streets suffered severe flooding along Nippersink Creek.In Dekalb County there was some flooding of roads and homes. In Winnebago County flooding affected dozens of roads and parks. Some homes were sandbagged in New Milford. In northern Kane County a fire station and school were flooded. A bridge was washed out near Hampshire.
The national radar mosaic for the moment the first event began.
5 flood. Local standard time, as filed.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in Illinois in 1999Every state in 1999This day in weather historyWarnings in Illinois, June 1999
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: 5708330, 5708331, 5708332, 5708333, 5708334.