River Conditions
Illustrated map of Grand Traverse Bay

River stage

Koss, Menominee River

River level
9.82 ft
Status
Below flood stage
7-day change
+0.13 ft
Recent high
11.22 ft
Recent low
9.58 ft

Last reported 2026-10-13 | NWS KOSM4

30-day change
+0.01 ft
Average
10.09 ft
Readings
122
Data span
122 days
Record crest
19.60 ft

In brief

The Menominee River at Koss, MI read 9.82 ft on Oct 13, 2026, 5.18 ft below action stage. That is 0.01 ft higher than 30 days earlier.

Source: National Weather Service gauge KOSM4

River level timeline

9.29.59.810.110.4SEP 13SEP 18SEP 23SEP 28OCT 03OCT 08OCT 13HIGH 10.03LOW 9.589.79 ftLAST READING

Stage threshold profile

Action stage 15.00 ftMinor flooding 17.00 ftModerate flooding 19.00 ftMajor flooding 21.00 ft CURRENT 9.82 ft

Highest crests on record

RankCrestDate
1 19.60 ft 1960-05-10
2 18.30 ft 1965-05-12
3 18.09 ft 2026-04-16
4 17.50 ft 1979-04-27
5 17.46 ft 2023-04-18
6 17.30 ft 1916-04-23
7 17.23 ft 2002-04-20
8 16.38 ft 2019-04-26

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

What happens at each level

  1. 15.00 ft

    There is minor flooding to wooded lowland.

  2. 17.00 ft

    Water begins to threaten three residences on Number 19 Road near Koss, a residence on Shoreline Drive, and a residence on River Road around a half mile south of Number 12 Road. Water floods a boat landing near the gauge.

  3. 18.00 ft

    Floodwaters approach a home on the Wisconsin side of the river.

  4. 20.00 ft

    Several feet of water is surrounding a home on the Wisconsin side of the river.

  5. 21.00 ft

    Several feet of water is surrounding several homes and cottages in the area along the river.

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

Trout stocking on the Menominee River

Michigan DNR stocked the Menominee River 1 time in 2026, 10,100 fish in total. Rainbow trout at 18.9. Michigan DNR's published figures for 2026, the most recent season it has confirmed, record 10,100 trout actually released here across 1 visit.

SpeciesFish SizeWhen
Rainbow trout 10,100 18.9 May 2026

Michigan DNR lists a week or a month rather than a date, and counts fish as an estimate. Full Michigan stocking schedule →

Frequently asked questions

Is the Menominee River flooding at Koss?

No. The Menominee River at Koss is at 9.82 ft, 5.18 ft below action stage.

What is the flood stage at Koss?

The National Weather Service sets action stage 15 ft, minor flooding 17 ft, moderate flooding 19 ft and major flooding 21 ft.

What is the highest the Menominee River has been at Koss?

The highest crest on record is 19.6 ft, on 1960-05-10.

Is the Menominee River high or low right now at Koss?

At 9.82 ft it is higher than 23% of readings over the last 122 days.

Stage and flood information from the NOAA National Weather Service (gauge KOSM4); daily history from the U.S. Geological Survey (site 04066800). Last reading 2026-10-13. For flood safety decisions always follow official National Weather Service warnings.