Copan Lake lake and shoreline

Copan Lake Water Level

Officially Copan Lake (Little Caney River)

Oklahoma

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Copan Lake

Copan Lake is currently 1.0 feet below full pool, with a water-surface elevation of 709.0 feet.

708.96 ft · Updated 4 hours ago · U.S. Army Corps of Engineers

Current level

708.96ft

−1.04 ft vs full pool

Normal

Vs full pool

Since last reading

Down 0.03 ft

Previous readingOct 4709.01 ft

7-day change

Down 0.09 ft

7-day trend: Falling

8 daily readings in the last 7 days

30-day change

Down 0.33 ft

31 daily readings in the last 30 days

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Water Level History

Current
708.96 ft
24h
-0.03 ft
7d
-0.09 ft
30d
-0.33 ft

Elevation (ft) NGVD29 · MSL

Reference line is designed full pool.

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Lake Level Context

Level remains below the full pool

Copan Lake is currently 708.96 ft, 1.04 ft below its full pool. The lake has fallen 0.09 ft over the past 7 days and 0.33 ft over the past 30 days.

Copan Lake Level Details

Reference elevations, recent daily readings, data sources, and answers to common questions.

Conditions & Reference

Level status

1.04 ft below full pool

Current level
708.96 ft
Full pool
710 ft
DatumElevation referenced to National Geodetic Vertical Datum of 1929.
NGVD29
Elevation reference
MSL
Source
USACE

Reference levels

  • Full pool710 ft
  • Flood stage732 ft

Watershed drought

Severe Drought

100% of watershed in official drought (D1+).

Severity

NoneExtreme
Trend
Stable

Watershed drought conditions

Washington County, OK

Severe Drought

Severe Drought. Severe drought conditions are present.. Trend: Stable compared with last week. Official drought yes

Severity

NoneExtreme

Weekly trend

Stable

Compared with last week

Official drought

Yes

100% of the watershed is currently classified as official drought (D1+).

Expected impacts

  • Lower stream inflows
  • Lake levels may decline faster
  • Vegetation is becoming drier
  • Minor increase in wildfire risk

U.S. Drought Monitor · map date Sep 29, 2026. Updated weekly. droughtmonitor.unl.eduView drought map for Washington County, OK

Daily level summary

DateLevelChange
Oct 5, 2026708.98-0.03
Oct 4, 2026709.01-0.02
Oct 3, 2026709.03-0.03
Oct 2, 2026709.06-0.06
Oct 1, 2026709.12+0.06
Sep 30, 2026709.06+0.01
Sep 29, 2026709.05-0.02

Common questions about Copan Lake’s water level

  • The current water level at Copan Lake is 708.96 ft (updated 4 hours ago). You can track the Copan Lake lake level on the interactive chart and daily history above.

  • Full pool for Copan Lake is 710 ft — the normal conservation target elevation when the reservoir is at its designed summer or operating pool.

  • The current 7-day trend for the Copan Lake lake level is falling — falling about 0.09 ft over the past week. See the history chart above for the full picture.

  • Based on the latest gauge reading, Copan Lake is currently 1.04 ft below full pool.

Lake level glossary

Definitions for pool targets, datums, and how elevation readings are labeled.

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