Rock River at Byron, IL
River level and flood forecast · Ogle County
Normal7.6 ftas of Mon 1:15 PM
The river is 5.4 ft below flood stage (13 ft).
Flow: 7,050 cubic feet per second (USGS).
The last 7 days and the forecast
NWS forecast issued Thu, Oct 1, 8:48 PM. Forecasts change as rain falls and as upstream water arrives.
Flood stages
| Major flood stage | 16 ft |
| Moderate flood stage | 14 ft |
| Flood stage | 13 ft |
| Action stage | 10.5 ft |
| Record crest (April 20, 1973) | 17.8 ft |
What floods at each level
From the National Weather Service, highest first.
- 17 ftWater threatens structures at the water treatment plant in Byron.
- 16.5 ftNumerous residences are threatened between IL-2 and the river just northeast of Byron. River Road is threatened near the river just south of Byron.
- 16 ftThe MercyHealth Clinic is threatened along Kysor Drive in Byron.
- 15.5 ftWater threatens lower sections of the water treatment plant property in Byron. Water threatens IL-2 west of Byron.
- 13.5 ftNumerous low-lying structures downstream of Byron are flooded.
- 13 ftLow-lying structures downstream of Byron are threatened.
- 12 ftWater inundates yards of several houses along River Road near Byron. Low-lying portions of Hamas Park and Sunshine Park are inundated.
- 10.5 ftWater begins to affect low-lying areas along the river near Byron.
Highest crests on record
- 17.8 ft — April 20, 1973
- 17.08 ft — April 20, 2013
- 16.64 ft — March 16, 2019
- 16.5 ft — July 25, 2010
- 16.12 ft — June 14, 2000
Recent crests: 13.84 ft (July 16, 2024) · 11.23 ft (June 24, 2024) · 12.47 ft (April 4, 2024) · 10.61 ft (January 28, 2024) · 11.67 ft (April 5, 2023)
Up and down the river, and nearby
- UpstreamRock River at Rockford (Fordam Dam), IL
- DownstreamRock River at Dixon, IL
- Kishwaukee River near Perryville, IL
- Rock River at Rockford (Auburn Street), IL
- South Branch Kishwaukee River near Fairdale, IL
- Rock River at Latham Park, IL
- Kishwaukee River at Belvidere, IL
- Pecatonica River at Freeport, IL
- Pecatonica River near Shirland, IL
Not an official source. River levels, forecasts, flood stages and impacts are from the National Weather Service (BYRI2); flow from the U.S. Geological Survey. Readings are provisional. In a flood, follow your local officials and the NWS at weather.gov.