Mississippi River at Thebes, IL

Alexander County, Illinois · USGS gauge 07022000 · NWS THBI2 · Mississippi River flood status · Illinois river levels

Is Mississippi River at Thebes, IL flooding right now?

Mississippi River at Thebes, IL measured 15.79 ft on 2026-09-22 21:00:00 UTC. That observation was 17.2 ft below its 33 ft flood stage. This is the latest available reading, not a guarantee of current conditions.

Gauge height
15.79 ft
as of 48 min ago
Streamflow
192,000 cfs
data refreshed 1 min ago

Minor flooding here begins at 33 ft, with major flooding at 42 ft. The highest crest on record was 47.74 ft on Sat, Jan 2, 2016.

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
Action30 ft14.2 ft below
Minor flood33 ft17.2 ft below
Moderate flood37 ft21.2 ft below
Major flood42 ft26.2 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
47.74 ft2016-01-02
45.91 ft1995-05-23
45.52 ft2011-05-03
45.51 ft1993-08-07
45.15 ft1844-07-04

Nearby gauges

GaugeDistanceCounty
Mississippi River at Cape Girardeau, MO6.4 miCape Girardeau County
Ohio River at Olmsted, IL22.4 miPulaski County
Humphrey Creek at Lacenter, KY29.6 miBallard County
Little River Ditch No. 1 near Morehouse, MO30.4 miStoddard County
Cache River at Forman, IL30.6 miJohnson 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