What is the current water level of Ft. Supply Lake?

As of Jul 14, 2026, 5:00 PM (UTC+00:00), the pool elevation was 2,004.40 ft (datum NGVD29). See the trend chart above for the recent direction.

Is Ft. Supply Lake full right now?

The source reports it at 100% of conservation-pool capacity as of Jul 14, 2026, 5:00 PM (UTC+00:00).

Where does this data come from?

From USACE SWT/FSUP, retrieved Jul 14, 2026, 10:55 PM (UTC+00:00). See the official link and the methodology page for the full source and update cadence.

Is this safe to use for boating or navigation?

No. Levels here are provisional readings for general reference only — not for navigation, dam-safety, or other safety decisions. Always confirm current conditions with the managing agency before making those calls.

Ft. Supply Lake water level — Oklahoma

Oklahoma · USACE · reading Jul 14, 2026, 5:00 PM (UTC+00:00)

Ft. Supply Lake in Oklahoma was last measured at 2,004.40 ft (datum NGVD29), as of Jul 14, 2026, 5:00 PM (UTC+00:00) (USACE CWMS Data). That is 100% of conservation-pool capacity. Over its recent trend window the level has been steady (−0.0 ft). Figures are provisional readings for reference — not for navigation or safety decisions.

Current reading Ft. Supply Lake · Oklahoma

Pool elevation: 2,004.40 ft
% of conservation pool full: 100%
Storage: 13,019 acre-ft
Recent trend: →Steady

Recent trend

The last ~21 days of readings at this station, downsampled for display.

Data: USGS Water Services (waterservices.usgs.gov) and USACE CWMS Data (cwms-data.usace.army.mil), retrieved 2026-07-14. Both public domain (a work of the U.S. Government, 17 U.S.C. §105).

Important — not for navigation or safety decisions

Water levels here are provisional readings for general reference only. Conditions vary and readings can be revised. Always confirm current conditions with the managing agency before making navigation, boating, or dam-safety decisions.

Source: USACE SWT/FSUP, retrieved Jul 14, 2026, 10:55 PM (UTC+00:00). Official page for this lake →

Nearby lakes

The six nearest published lakes by centroid distance (great-circle) — cross-state neighbors included.

Lakes nearest to Ft. Supply Lake, with current level and distance.
Lake	State	Level	Distance
Canton Lake	OK	1,615.19 ft	101 km
Foss Reservoir	OK	1,640.03 ft	118 km
Great Salt Plains Lake	OK	1,125.16 ft	130 km
Palo Duro Reservoir	TX	2,826.23 ft	144 km
Horsethief Reservoir	KS	2,421.98 ft	173 km
Ft. Cobb Lake	OK	1,341.13 ft	184 km

Frequently asked questions

What is the current water level of Ft. Supply Lake?: As of Jul 14, 2026, 5:00 PM (UTC+00:00), the pool elevation was 2,004.40 ft (datum NGVD29). See the trend chart above for the recent direction.
Is Ft. Supply Lake full right now?: The source reports it at 100% of conservation-pool capacity as of Jul 14, 2026, 5:00 PM (UTC+00:00).
Where does this data come from?: From USACE SWT/FSUP, retrieved Jul 14, 2026, 10:55 PM (UTC+00:00). See the official link and the methodology page for the full source and update cadence.
Is this safe to use for boating or navigation?: No. Levels here are provisional readings for general reference only — not for navigation, dam-safety, or other safety decisions. Always confirm current conditions with the managing agency before making those calls.

More in Oklahoma

See every lake tracked in Oklahoma, or read the methodology behind these figures.