OhioReservoir, 696 acres, Clinton County
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Sailing
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Fishing
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Outlook. Monday: WSW wind 0 to 4 kt, gusts to 7 kt, high near 72°F. Tuesday: ESE wind 2 to 4 kt, gusts to 7 kt, high near 72°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.
SatelliteLoading NASA SWOT passes
000.00ft above sea level
Measured from orbit by NASA's SWOT satellite each time it passes over the lake, usually every 10 to 21 days, to within about half a foot. Elevation is above sea level (EGM2008), not a gauge reading at a dock.
Background reading: Cowan Lake on Wikipedia
Set in Clinton County, Ohio, Cowan Lake is a 696-acre reservoir.
We have not matched Cowan Lake to a public level gauge, so the water level on this page comes from NASA's SWOT satellite, which measures the lake surface from orbit on each pass. Wind, gusts and rain come from the National Weather Service forecast grid that covers the water.
On water this size, waves stay small even on windy days. The catch is gusts: shoreline terrain funnels the wind into sharp puffs that catch out small boats and paddlers.
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: WSW wind 0 to 4 kt, gusts to 7 kt, high near 72°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.
We have not matched Cowan Lake to a public level gauge, so the water level card on this page uses NASA's SWOT satellite, which measures the lake surface every time it passes overhead, usually every 10 to 21 days. The card shows the latest pass, its date and the change since the pass before.
Cowan Lake covers about 696 acres (1.1 square miles) of surface water.
If Cowan is blown out, these are the closest alternatives. Tap through for their conditions.