St. Joseph River (OH/IN) near Newville, OH

River level and flood forecast · Defiance County

Normal4.0 ftas of Mon 4:40 PM

The river is 8.0 ft below flood stage (12 ft).

Flow: 146 cubic feet per second (USGS).

The last 7 days and the forecast

2.557.51012.51517.5TueWedThuFriSatSunMonAction 9 ftFlood 12 ftModerate 14 ftMajor 17 ftNowObserved (ft)NWS forecast

NWS forecast issued Thu, Sep 17, 9:46 AM. Forecasts change as rain falls and as upstream water arrives.

Flood stages

Major flood stage17 ft
Moderate flood stage14 ft
Flood stage12 ft
Action stage9 ft
Record crest (March 12, 2009)17.98 ft

What floods at each level

From the National Weather Service, highest first.

  • 19.3 ftFlood water begins to hit the bottom of the bridge at the gage site.
  • 18 ftRecord flooding is in progress and a few evacuations may be necessary. Many roads are flooded.
  • 17 ftResidential flooding occurs in Leo, Indiana.
  • 14 ftSignificant flooding occurs on DeKalb County Road 42 about 3 miles northeast of Newville. Considerable agricultural and low land flooding occurs along the St. Joseph River to the Cedarville Reservoir.
  • 12 ftDeKalb County Road 42 about 3 miles northeast of Newville floods. Agricultural and low lands flood along the St. Joseph River to the Cedarville Reservoir.
  • 11 ftMinor agricultural and lowland flooding begins.
  • 9 ftThe river is at bankfull.

Highest crests on record

  1. 17.98 ft — March 12, 2009
  2. 17.96 ft — March 17, 1982
  3. 17.78 ft — May 18, 1996
  4. 17.22 ft — February 26, 1985
  5. 17.05 ft — April 6, 1950

Recent crests: 11.25 ft (July 1, 2021) · 15.46 ft (May 21, 2020) · 15.2 ft (May 4, 2019) · 16.45 ft (February 23, 2018) · 13.92 ft (April 4, 2017)

Up and down the river, and nearby

Not an official source. River levels, forecasts, flood stages and impacts are from the National Weather Service (NVLI3); flow from the U.S. Geological Survey. Readings are provisional. In a flood, follow your local officials and the NWS at weather.gov.