Au Sable River near Red Oak water level

Name: Au Sable River near Red Oak water level (U.S. Geological Survey)
Creator: U.S. Geological Survey
License: https://www.usgs.gov/information-policies-and-instructions/copyrights-and-credits

River gauge, Au Sable River, Michigan, United States

Directions

Below flood stage

Water level

3.33ft Down 0.07 ft over the last 24 hours

Measured Oct 19, 2026, 06:00 PM EDT (34 min ago)

Flow: 911 cfs
Water temperature: 49 °F

History

7 days

Water level Forecast Minor flood stage

The forecast expects the river to fall to 3.00 ft by Friday, October 23 at 08:00 AM. Issued Monday, October 19 at 10:30 AM by NOAA National Weather Service.

What this means

The Au Sable River near Red Oak is at 3.33 ft, in the normal range.

It is 3.67 ft below the flood stage of 7.00 ft.

It has dropped 0.07 ft over the past 24 hours. The forecast expects the river to fall to 3.00 ft by Friday, October 23 at 08:00 AM. In the last month it has stayed between 3.33 ft and 3.59 ft.

The sensor also reports a water temperature of 49 °F.

Judged against the official flood stage for this gauge. How to read levels

Key numbers

Highest on record: 8.88 ftApril 14, 2026
Forecast peak: 3.30 ftMonday, October 19 at 02:00 PM

Floating and fishing near Au Sable River near Red Oak

Normal flows mean predictable rapids and good access at most put-ins.

Flood stage here is 7.00 ft, 3.67 ft above the current reading. Beyond it, the National Weather Service also defines moderate and major flood stages.

Highest crests on record

Chance of at least minor flooding in October to December: < 5 %.

Rank	Level	Date
1	8.88 ft	April 14, 2026
2	5.92 ft	April 1, 2025
3	5.79 ft	January 17, 2022
4	5.69 ft	March 31, 2022
5	5.42 ft	April 6, 2023
6	4.38 ft	March 5, 2024
7	4.26 ft	December 17, 2021

Weather at the gauge

Rain in the last 3 days: 0.04 in. Rain that falls upstream can take hours or days to show up at a river gauge.

19 Mon 64° 40° – Wind 6 mph

20 Tue 60° 41° – Wind 6 mph

21 Wed 65° 40° – Wind 7 mph

22 Thu 67° 46° – Wind 4 mph

23 Fri 65° 46° – Wind 6 mph

24 Sat 67° 48° – Wind 10 mph

25 Sun 67° 53° – Wind 12 mph

Forecast: Open-Meteo

Sunrise 07:58 AM Sunset 06:47 PM Daylight 10 hr, 49 min First quarter 63%

Map

Other gauges on the Au Sable River

Gauge	Level	Compared with normal	24 hours	Distance
Au Sable River at MioRiver gauge, Au Sable River	1,050 cfs	High	−70.0 cfs	8 mi
Au Sable River near Mc KinleyRiver gauge, Au Sable River	1,220 cfs	High	−50.0 cfs	23 mi
Au Sable River near CurtisvilleRiver gauge, Au Sable River	1,340 cfs	High	−50.0 cfs	25 mi
Au Sable River near Au SableRiver gauge, Au Sable River	1,290 cfs	Normal	−60.0 cfs	45 mi
Au Sable River near Us23 at OscodaRiver gauge, Au Sable River	13.80 ft	No reference yet	−0.10 ft	51 mi

Nearby gauges

Gauge	Level	Compared with normal	24 hours	Distance
Nb Au Sable River at Kelloggs Branch near LovellsRiver gauge, Nb Au Sable River	220 cfs	Very high	−9.0 cfs	7 mi
South Branch Au Sable River near LuzerneRiver gauge, South Branch Au Sable River	218 cfs	Normal	−2.0 cfs	9 mi
Lake St Helen at St HelenLake, Lake St Helen	6.34 ft	Low	±0	23 mi
Higgins Lake near RoscommonLake, Higgins Lake	5.33 ft	Very high	+0.01 ft	26 mi
Otsego Lake near GaylordLake, Otsego Lake	3.70 ft	Very high	+0.02 ft	26 mi
Manistee River near GraylingRiver gauge, Manistee River	218 cfs	High	−6.0 cfs	27 mi
Houghton Lake near Houghton Lake HeightsLake, Houghton Lake	8.03 ft	Normal	−0.07 ft	31 mi

Questions and answers

What is flood stage for the Au Sable River near Red Oak?

The official flood stage is 7.00 ft. The level is currently 3.67 ft below it.

Is gage height the same as water depth?

No. Gage height is measured from a fixed reference point chosen by the agency, so a reading of 10 ft does not mean the river is 10 ft deep.

What is the water level of Au Sable River near Red Oak today?

On Oct 19, 2026, 06:00 PM EDT, the water level was 3.33 ft. Down 0.07 ft over the last 24 hours.

Is Au Sable River near Red Oak rising or falling?

Down 0.07 ft over the last 24 hours.

Is the level of Au Sable River near Red Oak normal?

Below flood stage. Judged against the official flood stage for this gauge.

What is the highest water level ever recorded at Au Sable River near Red Oak?

The highest level on record is 8.88 ft on April 14, 2026.

Is Au Sable River near Red Oak expected to rise?

The forecast expects the river to fall to 3.00 ft by Friday, October 23 at 08:00 AM.

For specialists

Station codes, datum, parameters, data quality and downloads

Operator: U.S. Geological Survey
Station code: usgs:04136000 (Agency page)
Coordinates: 44.67696, -84.29251 (WGS84)
Vertical datum: NAVD88
Update interval: every 15 minutes
Licence: Public domain. Data: U.S. Geological Survey (USGS), provisional data subject to revision

Published series

Parameter	Last value	Time (UTC)	Quality
Water level	3.33 ft	2026-10-19 22:00	Provisional
Flow	911 cfs	2026-10-19 22:00	Provisional
Water temperature	49 °F	2026-10-19 21:45	Provisional

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How to cite

U.S. Geological Survey: Au Sable River near Red Oak (usgs:04136000). Accessed October 19, 2026 via Nivelmap, https://nivelmap.com/en/united-states/michigan/au-sable-river-near-red-oak

How we check values

Each reading is stored as published. We hold back values that jump faster than physically plausible and show the measurement time with every value.

Readings are provisional, can be delayed or wrong and are not a flood warning. Read the disclaimer