Rivers in North Dakota

Heart River near Mandan

Morton County, North DakotaNWS MDNN8USGS 06349000Bismarck office

Below flood stage
9.41ftStage

Observed Mon, Sep 21, 11:15 PM CDT

Flood stage
27.00 ft
Record crest
35.75 ft1952

Open the live map with the river flood outlook

Flood stages and impacts

CategoryStage
Major flood38.00 ft
Moderate flood33.00 ft
Minor flood27.00 ft
Action25.00 ft
  1. 38.00 ftTown of Mandan will flood due to levees being overtopped at this level.
  2. 27.00 ftWooded banks and lowlands west of Mandan will flood above 17 feet.

Flood outlook

Chance of flooding, September to November

CategoryChance
Minor floodingUnder 5%
Moderate floodingUnder 5%
Major floodingUnder 5%

The three-month chances are the River Forecast Centers’ long-range flood outlook, issued August 26, 2026.

Crest history

100 crests on NOAA’s list since 1921.

#DateStage
1April 4, 195235.75 ft
2March 22, 198735.38 ft
3March 25, 197834.85 ft
4March 27, 194334.70 ft
5March 28, 195134.35 ft
6March 23, 199734.21 ft
7March 24, 200934.07 ft
8March 14, 197234.05 ft
9March 30, 198233.89 ft
10March 24, 201933.82 ft
11April 19, 195033.64 ft
12March 4, 198633.42 ft
13March 22, 193933.40 ft
14March 21, 194833.31 ft
15April 4, 196932.84 ft
16April 4, 194432.75 ft
17March 13, 194532.30 ft
18March 27, 194732.16 ft
19March 23, 194832.02 ft
20March 29, 194931.95 ft
21March 22, 195631.60 ft
22March 16, 197130.64 ft
23March 18, 193030.36 ft
24March 14, 199529.89 ft
25March 26, 196029.50 ft

Most recent crests

  • March 14, 2024: 15.78 ft
  • April 14, 2023: 29.27 ft
  • April 25, 2022: 13.48 ft
  • March 11, 2021: 10.67 ft
  • March 7, 2020: 15.76 ft
  • March 24, 2019: 33.82 ft
  • March 30, 2018: 17.23 ft
  • March 26, 2017: 16.02 ft
  • April 26, 2016: 12.41 ft
  • June 23, 2015: 17.03 ft

Nearby

Upstream, downstream and the gauges around this one.

What this means

Forecasts by the Missouri Basin River Forecast Center. Forecasts are issued as needed during times of high water, but are not routinely available. River Forecasts typically include ONLY 2 days of future rain from <u>forecast issuance time</u> (lower right of graph). Occasionally 3 days of future rain included.

Sources

Stage, flood stages, impacts and crest history from NOAA’s National Water Prediction Service. Streamflow and the daily record from the U.S. Geological Survey.