FOSO2 : Foss Lake
Current Readings
- 0.98 ft BELOW normal
- Pool elevation is 1641.02 feet on 06JAN2026 12:00 hours.
- At this elevation the total amount of water stored in Foss Lake is 162773 acre-feet.
- Reservoir release is 0 cubic feet per second on Tuesday 06Jan2026 11:00.
- Conservation pool is 95.9% full.
- Conservation pool storage filled is 153579 acre-feet which is equivalent to 1.92 inches of runoff over the entire drainage basin.
- Conservation pool storage empty is 6566 acre-feet which is equivalent to 0.08 inches of runoff over the entire drainage basin.
Gate Change
Conditions at the time of Gate Change- Wednesday, 25 Jun 2025 1515
- Pool Elevation = 1641.98 feet.
- Total Release = 0 (cfs)
- Unregulated Release = 0 (cfs)
- Gate Settings:
- All CLOSED
Evaporation Data
- 0.195 inches - 06JAN2026 @ 07:00
Reservoir Data
| Elevation | Incremental Storage | Cumulative Storage | |||
|---|---|---|---|---|---|
| (feet) | (inches of runoff)* | (acre-feet) | (inches of runoff)* | (acre-feet) | |
| Surcharge Pool: | ---- | ---- | ---- | ---- | ---- |
| Flood Control Pool: | 1662.20 | 2.27 | 181069 | 4.40 | 350409 |
| Conservation Pool: | 1642.00 | 2.01 | 160145 | 2.13 | 169339 |
| Inactive Pool: | 1597.20 | 0.12 | 9194 | 0.12 | 9194 |
Streambed Elevation: 1563.00 feet.
Top of Dam Elevation: 1697.00 feet.
* Values in the above "inches of runoff" column are based on a contributing drainage area of 1496.0 square miles.
Longitude: -99° 10' 42 Latitude: 35° 32' 18
Map of Foss Lake Dam
Links for More Information
Graphs
of Measured and Calculated Lake Parameters
Foss Reservoir near Foss, OK
Go to Tulsa District Water Control Home Page.
Disclaimer:These pages are subject to change.Last Page Update: Tuesday, 06 Jan 2026 12:01