Vermilion River near Leonore, IL

LaSalle County, Illinois · USGS gauge 05555300 · NWS LNRI2 · Vermilion River flood status · Illinois river levels

Is Vermilion River near Leonore, IL flooding right now?

Vermilion River near Leonore, IL measured 3.86 ft on 2026-09-22 20:45:00 UTC. That observation was 12.1 ft below its 16 ft flood stage. This is the latest available reading, not a guarantee of current conditions.

Gauge height
3.86 ft
as of 62 min ago
Streamflow
109 cfs
data refreshed just now

Minor flooding here begins at 16 ft, with major flooding at 26 ft. The highest crest on record was 30.25 ft on Thu, Apr 18, 2013.

Streamflow outlook

NOAA National Water Model forecast, issued 10 hours ago. The NWM models discharge for every river reach in the country, including the many gauges the National Weather Service does not forecast individually. It is a model, not an official NWS river forecast, and it predicts flow rather than water level.

Flood stages at this gauge

CategoryStageCurrent distance
Action15.5 ft11.6 ft below
Minor flood16 ft12.1 ft below
Moderate flood21 ft17.1 ft below
Major flood26 ft22.1 ft below

New to these numbers? What does flood stage mean? · How to read a river gauge · Why is the river rising?

Highest crests on record

StageDate
30.25 ft2013-04-18
27.13 ft1982-12-04
25.22 ft2008-01-09
25.1 ft2015-12-29
24.5 ft2019-05-02

Nearby gauges

GaugeDistanceCounty
Illinois River at Marseilles, IL13.8 miLaSalle County
Fox River at Dayton, IL14.2 miLaSalle County
Illinois River at Seneca, IL17.6 miLaSalle County
Illinois River at Henry, IL23.2 miMarshall County
East Bureau Creek near Bureau, IL25.0 miBureau County
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.

Sources: USGS monitoring location · NWS gauge & forecast