River Conditions
Illustrated map of Keystone Lake

River stage

Calvin, Canadian River

River level
4.93 ft
Status
Below flood stage
7-day change
-0.33 ft
Recent high
6.88 ft
Recent low
4.28 ft

Last reported 2026-10-13 | NWS CLVO2

30-day change
+0.41 ft
Average
5.04 ft
Readings
122
Data span
122 days
Record crest
26.00 ft

In brief

The Canadian River at Calvin, OK read 4.93 ft on Oct 13, 2026, 13.07 ft below action stage. That is 0.41 ft higher than 30 days earlier.

Source: National Weather Service gauge CLVO2

River level timeline

4.14.55.05.55.9SEP 13SEP 18SEP 23SEP 28OCT 03OCT 08OCT 13HIGH 5.71LOW 4.284.94 ftLAST READING

Stage threshold profile

Action stage 18.00 ftMinor flooding 20.00 ftModerate flooding 23.00 ftMajor flooding 25.00 ft CURRENT 4.93 ft

Highest crests on record

RankCrestDate
1 26.00 ft 1906-08-07
2 25.50 ft 1904-10-04
3 25.00 ft 1914-05-03
4 24.35 ft 1950-05-11
5 24.20 ft 1908-05-24
6 24.00 ft 1941-05-05
7 23.97 ft 1990-05-03
8 22.55 ft 1949-05-18

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

What happens at each level

  1. 18.00 ft

    Croplands... pastures... oilfields... and local roads may sustain shallow overflows. Upstream areas along the river in northern Pontotoc... southern Seminole... and west central Hughes counties are covered before the areas near Calvin. Downstream areas in eastern Hughes County are affected hours later.

  2. 19.00 ft

    Croplands... pastures... oilfields... and local roads may sustain shallow overflows. Upstream areas along the river in northern Pontotoc... southern Seminole... and west central Hughes counties are covered before the areas near Calvin. Downstream areas in eastern Hughes County are affected hours later.

  3. 20.00 ft

    Croplands... pastures... oilfields... and local roads may sustain shallow overflows. Upstream areas along the river in northern Pontotoc... southern Seminole... and west central Hughes counties are flooded before the areas near Calvin. Downstream areas in eastern Hughes County are affected hours later. The town of Calvin and U.S. Highway 75 are not threatened.

  4. 21.00 ft

    Croplands... pastures... oilfields... and local roads may sustain shallow overflows. Upstream areas along the river in northern Pontotoc... southern Seminole... and west central Hughes counties are flooded before the areas near Calvin. Downstream areas in eastern Hughes County are affected hours later. The town of Calvin and U.S. Highway 75 are not threatened.

  5. 22.00 ft

    Flooding of croplands... pastures... oilfields and rural roads... with water depths up to 2 feet may occur. Upstream areas along the river in northern Pontotoc... southern Seminole... and west central Hughes counties are flooded before the areas near Calvin. Downstream areas in eastern Hughes County are affected hours later. The town of Calvin and U.S. Highway 75 are not threatened.

  6. 23.00 ft

    Flooding of croplands... pastures... oilfields and rural roads... with water depths up to 3 feet may occur. Upstream areas along the river in northern Pontotoc... southern Seminole... and west central Hughes counties are flooded before the areas near Calvin. Downstream areas in eastern Hughes County are affected hours later. The town of Calvin and U.S. Highway 75 are not threatened.

  7. 24.00 ft

    Flooding of croplands... pastures... oilfields and rural roads... with water depths up to 4 feet may occur. Upstream areas along the river in northern Pontotoc... southern Seminole... and west central Hughes counties are flooded before the areas near Calvin. Downstream areas in eastern Hughes County are affected hours later. The town of Calvin and U.S. Highway 75 are not threatened.

  8. 25.00 ft

    Flooding of agricultural lands... oilfields... and rural roads occurs. Varying water depths up to about 5 feet may result in severe damage to property and the loss of livestock. Upstream areas along the river in northern Pontotoc... southern Seminole... and west central Hughes counties are flooded before the areas near Calvin. Downstream areas in eastern Hughes County are affected hours later. The town of Calvin and U.S. Highway 75 are not threatened.

  9. 26.00 ft

    Flooding of agricultural lands... oilfields... and rural roads occurs. Varying water depths up to about 6 feet may result in severe damage to property and the loss of livestock. Upstream areas along the river in northern Pontotoc... southern Seminole... and west central Hughes counties are flooded before the areas near Calvin. Downstream areas in eastern Hughes County are affected hours later. The town of Calvin and U.S. Highway 75 are not threatened.

  10. 27.00 ft

    Flooding of agricultural lands... oilfeilds... and rural roads occurs. Varying water depths up to about 7 feet may result in severe damage to property and the loss of livestock. Upstream areas along the river in northern Pontotoc... southern Seminole... and west central Hughes counties are flooded before the areas near Calvin. Downstream areas in eastern Hughes County are affected hours later. The town of Calvin and U.S. Highway 75 are not threatened.

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

Frequently asked questions

Is the Canadian River flooding at Calvin?

No. The Canadian River at Calvin is at 4.93 ft, 13.07 ft below action stage.

What is the flood stage at Calvin?

The National Weather Service sets action stage 18 ft, minor flooding 20 ft, moderate flooding 23 ft and major flooding 25 ft.

What is the highest the Canadian River has been at Calvin?

The highest crest on record is 26.0 ft, on 1906-08-07.

Is the Canadian River high or low right now at Calvin?

At 4.93 ft it is higher than 54% of readings over the last 122 days.

Stage and flood information from the NOAA National Weather Service (gauge CLVO2); daily history from the U.S. Geological Survey (site 07231500). Last reading 2026-10-13. For flood safety decisions always follow official National Weather Service warnings.