River Conditions
Illustrated map of Mississippi River

River stage

Winona, Mississippi River

River level
645.84 ft
Status
Below flood stage
Action stage
650.00 ft
Flood stage
655.00 ft
Record crest
663.35 ft

Last reported 2026-10-13 | NWS WIDM5

Readings
119
Record crest
663.35 ft
Flood stage
655.00 ft
Moderate flood
659.00 ft
Major flood
661.00 ft

In brief

The Mississippi River at Winona, MN read 645.84 ft on Oct 13, 2026, 4.16 ft below action stage.

Source: National Weather Service gauge WIDM5

Stage threshold profile

Action stage 650.00 ftMinor flooding 655.00 ftModerate flooding 659.00 ftMajor flooding 661.00 ft CURRENT 645.84 ft

Highest crests on record

RankCrestDate
1 663.35 ft 1965-04-19
2 661.95 ft 2001-04-17
3 661.60 ft 1997-04-11
4 661.37 ft 1969-04-19
5 660.51 ft 2023-04-26
6 659.90 ft 1952-04-20
7 659.26 ft 1951-04-18
8 658.75 ft 2019-04-03

Flood crests recorded at this gauge by the National Weather Service.

What happens at each level

  1. 651.00 ft

    Water begins to impact campsites along river upstream at Merrick State Park.

  2. 660.00 ft

    Lock and dam 5A closes to navigation.

  3. 663.00 ft

    Lock walls go underwater.

  4. 663.35 ft

    Water levels reach the flood of record.

  5. 664.00 ft

    Water reaches the top of the protective earthen levee.

Written by the local National Weather Service forecast office for this exact gauge.

Frequently asked questions

Is the Mississippi River flooding at Winona?

No. The Mississippi River at Winona is at 645.84 ft, 4.16 ft below action stage.

What is the flood stage at Winona?

The National Weather Service sets action stage 650 ft, minor flooding 655 ft, moderate flooding 659 ft and major flooding 661 ft.

What is the highest the Mississippi River has been at Winona?

The highest crest on record is 663.35 ft, on 1965-04-19.

Stage and flood information from the NOAA National Weather Service (gauge WIDM5); daily history from the U.S. Geological Survey (site 05378490). Last reading 2026-10-13. For flood safety decisions always follow official National Weather Service warnings.