Reservoir · Oklahoma · United States · USACE CWMS
Ft. Gibson Lake
58.8% full
Capacity
1,004.36 hm³
Volume stored
591 hm³
Coordinates
35.871°N, 95.229°W
Last updated
2026-06-11
Current fill
58.8%vs 7 days ago
+3.5%gaining
vs 1 year ago
-0.3%year-over-year
7-day trend
↑rising
Data source: USACE CWMS — US Army Corps of Engineers — daily reservoir storage volume. Design capacity is unavailable for this site, so fill % is estimated against the 5-year maximum storage and may overstate fullness. Last reading: 2026-06-11.
Catchment Weather
Past 30 days + 14-day forecast · Open-Meteo
Satellite imagery: Esri, Maxar, Earthstar Geographics. Map: Esri, HERE, Garmin, © OpenStreetMap contributors. 35.871, -95.229 · Open in Google Maps
About Ft. Gibson Lake
As of June 11, 2026, Ft. Gibson Lake is filled to 58.8% of its total capacity, holding roughly 591 hm³ of water out of a maximum 1,004 hm³. At this level the reservoir is within its normal operating range.
Over the most recent week on record the fill level has risen by 3.5 percentage points, and it sits close to where it was a year earlier.
Across the readings we hold for Ft. Gibson Lake — 329 data points between June 13, 2021 and June 11, 2026 — the level has ranged from a low of 41.7% (February 12, 2026) to a high of 100.0% (July 3, 2021). On average the reservoir is fullest around July and at its lowest around February.
It is operated by USACE primarily for multiple purposes. It lies within the Oklahoma basin at 35.871°N, 95.229°W.
Key facts
- Current fill level
- 58.8%
- Water stored
- 591 hm³
- Total capacity
- 1,004 hm³
- 7-day change
- ▲ 3.5 pts
- Year-on-year
- ▼ 0.3 pts
- Primary use
- Multipurpose
- River basin
- Oklahoma
- Operator
- USACE
- Coordinates
- 35.871°N, 95.229°W
- Last updated
- June 11, 2026
Recent readings
| Date | Fill level | Volume (hm³) |
|---|---|---|
| 11 Jun 2026 | 58.8% | 591 |
| 10 Jun 2026 | 55.3% | 555 |
| 9 Jun 2026 | 52.2% | 524 |
| 8 Jun 2026 | 53.3% | 535 |
| 7 Jun 2026 | 54.2% | 544 |
| 6 Jun 2026 | 53.4% | 537 |
| 5 Jun 2026 | 52.8% | 530 |
| 4 Jun 2026 | 52.7% | 530 |
| 3 Jun 2026 | 51.3% | 515 |
| 2 Jun 2026 | 47.4% | 476 |
| 1 Jun 2026 | 45.2% | 454 |
| 31 May 2026 | 43.7% | 439 |
Frequently asked questions
What is the current water level of Ft. Gibson Lake?
As of June 11, 2026, Ft. Gibson Lake is at 58.8% of its capacity, holding approximately 591 hm³ of water, according to USACE CWMS (US Army Corps of Engineers) data.
Is Ft. Gibson Lake reservoir full?
No. As of June 11, 2026, Ft. Gibson Lake is within its normal operating range at 58.8% of its capacity, so it is not full.
Is the water level at Ft. Gibson Lake rising or falling?
The level at Ft. Gibson Lake is rising — it gained 3.5 percentage points over the latest week on record.
How much water can Ft. Gibson Lake hold?
Ft. Gibson Lake has a total capacity of 1,004 hm³.
Where is Ft. Gibson Lake reservoir located?
Ft. Gibson Lake is located in Oklahoma, United States, within the Oklahoma basin (coordinates 35.871°N, 95.229°W).
What is Ft. Gibson Lake used for?
Ft. Gibson Lake is used primarily for multiple purposes, and is managed by USACE.