OklahomaReservoir, 4,054 acres, Washington County
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708.96ft
Steady this week
Sailing
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Kayak and SUP
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Power boating
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Fishing
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Outlook. Monday: S wind 4 to 8 kt, gusts to 13 kt, high near 78°F. Tuesday: S wind 3 to 8 kt, gusts to 14 kt, high near 74°F.
7-day wind forecastLoads when you scroll here
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Last hour of NOAA MRMS radar, 1 km resolution. Map data © OpenStreetMap contributors, OpenMapTiles, OpenFreeMap.
708.96ft NGVD29
-0.05 ft in 7 days0.87 ft below the October normal
Reading from Oct 26, 2026. Shaded band: range of October averages on record; dashed line is the typical level.
Copan Lake was at 708.96 ft on October 26, holding steady over the past week (-0.05 ft). That is near normal for October: the typical October level is 709.83 ft, so the lake is 0.87 ft below its usual mark.
Background reading: Copan Lake on Wikipedia
Set in Washington County, Oklahoma, Copan Lake is a 4,054-acre reservoir.
Water level on this page comes from the U.S. Army Corps of Engineers reading at Copan Lake, published through the Corps' CWMS data service. Wind, gusts and rain come from the National Weather Service forecast grid that covers the water.
It is big enough for a proper sail but small enough that waves rarely get serious. Gusts off the shoreline are usually the bigger story than wave height. Reservoir levels move with releases and inflow, so ramps and beaches can change week to week. The water level page tracks that day by day.
The go or no-go calls above are a starting point, not a guarantee. Read how we score conditions, and always check local rules and posted warnings before you launch.
The National Weather Service forecast for the lake from October 26: Monday: S wind 4 to 8 kt, gusts to 13 kt, high near 78°F. The panel at the top of this page refreshes the current wind, gusts and direction when you open it and turns them into a call for sailing, paddling, power boating and fishing.
Copan Lake was at 708.96 ft on October 26, holding steady over the past week (-0.05 ft). That is near normal for October: the typical October level is 709.83 ft, so the lake is 0.87 ft below its usual mark.
Copan Lake covers about 4,054 acres (6.3 square miles) of surface water.
If Copan is blown out, these are the closest alternatives. Tap through for their conditions.