Wabash River at New Harmony, IN

River level and flood forecast · Posey County

Normal2.9 ftas of Mon 3:30 PM

The river is 12.1 ft below flood stage (15 ft).

Forecast to fall to 1.8 ft by Thu, Oct 22, 7 AM.

Flow: 12,500 cubic feet per second (USGS).

The last 7 days and the forecast

-50510152025TueThuSatMonWedFriSunTueThuAction 10 ftFlood 15 ftModerate 20 ftMajor 23 ftNowObserved (ft)NWS forecast

NWS forecast issued Mon, Oct 12, 9:11 AM. Forecasts change as rain falls and as upstream water arrives.

Flood stages

Major flood stage23 ft
Moderate flood stage20 ft
Flood stage15 ft
Action stage10 ft
Record crest (March 31, 1913)27.7 ft

What floods at each level

From the National Weather Service, highest first.

  • 28 ftMost of New Harmony is flooded.
  • 27.2 ftThis flood will exceed the highest stage on record. Large amounts of property damage can be expected. Evacuation of many businesses and homes becomes necessary.
  • 24 ftFlood waters enter city street in New Harmony.
  • 21 ftThe river is 3 miles wide at I-64.
  • 20 ftParts of northern New Harmony begin to flood and sandbagging becomes necessary in town.
  • 19 ftHarmonie State Park is closed. Surrounding bottomland is flooded.
  • 15 ftThe river overflows low ground on the Illinois side.
  • 10 ftSome stripper oil wells begin to flood along the river from New Harmony to Mt. Vernon Indiana.

Highest crests on record

  1. 27.7 ft — March 31, 1913
  2. 24.4 ft — January 31, 1937
  3. 23.84 ft — May 26, 1943
  4. 23.67 ft — May 4, 2011
  5. 23.4 ft — January 14, 1950

Recent crests: 22.59 ft (April 14, 2025) · 16.78 ft (April 21, 2024) · 18.45 ft (April 2, 2023) · 17.19 ft (March 13, 2023) · 15.98 ft (March 31, 2022)

Up and down the river, and nearby

Not an official source. River levels, forecasts, flood stages and impacts are from the National Weather Service (NHRI3); flow from the U.S. Geological Survey. Readings are provisional. In a flood, follow your local officials and the NWS at weather.gov.