North River (MO) at Palmyra, MO
River level and flood forecast · Marion County
Normal3.6 ftas of Mon 1:30 PM
The river is 9.4 ft below flood stage (13 ft).
Flow: 15 cubic feet per second (USGS).
The last 7 days and the forecast
NWS forecast issued Sun, Dec 31, 6 PM. Forecasts change as rain falls and as upstream water arrives.
Flood stages
| Major flood stage | 22 ft |
| Moderate flood stage | 16 ft |
| Flood stage | 13 ft |
| Action stage | 11 ft |
| Record crest (April 18, 2013) | 23.15 ft |
What floods at each level
From the National Weather Service, highest first.
- 30 ftBridge surface on County Road 329 is flooded.
- 22.1 ftAgricultural levee along the right bank near the gage is overtopped.
- 19.5 ftAt this height, the following county roads along North River are impassable: 230, 324, 329, and 335.
- 17.1 ftAgricultural land along the left bank begins flooding near the gage.
- 16 ftLeft bank begins to flood near the gage.
- 14 ftMarion County Rd 341 north of Palmyra inundated. Significant agricultural land flooding...right bank.
- 13.5 ftCounty Road 337, northeast of Palmyra, begins to flood.
Highest crests on record
- 23.15 ft — April 18, 2013
- 22.06 ft — July 21, 2010
- 21.46 ft — September 14, 2008
- 20.68 ft — June 26, 2015
- 19.93 ft — May 29, 2019
Recent crests: 19.4 ft (June 12, 2026) · 13.81 ft (April 2, 2026) · 13.13 ft (April 21, 2025) · 17.92 ft (April 29, 2024) · 14.85 ft (April 27, 2024)
Up and down the river, and nearby
Not an official source. River levels, forecasts, flood stages and impacts are from the National Weather Service (PALM7); flow from the U.S. Geological Survey. Readings are provisional. In a flood, follow your local officials and the NWS at weather.gov.