St. Marys River near Fort Wayne, IN

Allen County, Indiana · USGS gauge 04182000 · NWS SASI3 · St. Marys River flood status · Indiana river levels

Nearby: river levels near Fort Wayne

Is St. Marys River near Fort Wayne, IN flooding right now?

St. Marys River near Fort Wayne, IN measured 1.14 ft on 2026-11-11 15:45:00 UTC. That observation was 12.9 ft below its 14 ft flood stage. This is the latest available reading, not a guarantee of current conditions.

Gauge height
1.14 ft
as of 56 min ago
Streamflow
56 cfs
data refreshed 9 min ago

Minor flooding here begins at 14 ft, with major flooding at 19 ft. The highest crest on record was 21.2 ft on Wed, Jul 9, 2003.

Streamflow outlook

NOAA National Water Model forecast, issued 11 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
Action12 ft10.9 ft below
Minor flood14 ft12.9 ft below
Moderate flood17 ft15.9 ft below
Major flood19 ft17.9 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
21.2 ft2003-07-09
19.88 ft2015-06-19
19.66 ft1982-03-14
19.06 ft2005-01-14
18.33 ft1985-02-26

Nearby gauges

GaugeDistanceCounty
Maumee River at Coliseum Blvd at Fort Wayne, IN6.5 miAllen County
Maumee River at Fort Wayne, IN6.5 miAllen County
Maumee River at Columbia St at Fort Wayne, IN6.6 miAllen County
St. Marys River at Main St. at Fort Wayne, IN6.6 miAllen County
Graham Mccolloch D at S Bend Dr near Fort Wayne, IN7.6 miAllen 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