Rock River at Como, IL
Is Rock River at Como, IL flooding right now?
Rock River at Como, IL measured 8.21 ft on 2026-09-22 21:00:00 UTC. That observation was 4.3 ft below its 12.5 ft flood stage. This is the latest available reading, not a guarantee of current conditions.
Gauge height
8.21 ft
Streamflow
14,900 cfs
Minor flooding here begins at 12.5 ft, with major flooding at 18 ft. The highest crest on record was 15.64 ft on Sun, Jul 23, 2017.
Streamflow outlook
Flood stages at this gauge
| Category | Stage | Current distance |
|---|---|---|
| Action | 10 ft | 1.8 ft below |
| Minor flood | 12.5 ft | 4.3 ft below |
| Moderate flood | 15.5 ft | 7.3 ft below |
| Major flood | 18 ft | 9.8 ft below |
Highest crests on record
| Stage | Date |
|---|---|
| 15.64 ft | 2017-07-23 |
| 15.18 ft | 2019-03-16 |
| 14.68 ft | 2018-02-21 |
| 13.3 ft | 2019-10-05 |
| 12.97 ft | 2024-07-16 |
Nearby gauges
| Gauge | Distance | County |
|---|---|---|
| Rock River above Sinnissippi Dam at Rock Falls, IL | 3.7 mi | Whiteside County |
| Elkhorn Creek near Penrose, IL | 9.4 mi | Whiteside County |
| Rock River at Dixon, IL | 14.3 mi | Lee County |
| Mississippi River at Dam 13 near Fulton, IL | 22.8 mi | Whiteside County |
| Beaver Slough at 3rd Street at Clinton, IA | 23.2 mi | Clinton County |
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Provisional data: Real-time readings are provisional and subject to revision by the USGS — sensors can be affected by ice, debris, or equipment malfunction. Do not rely on this site for decisions involving personal safety; follow official guidance from the National Weather Service and local authorities.