Reservoir · Oklahoma · United States · USACE CWMS
Ft. Gibson Lake
44.2% full
Capacity
1,009.66 hm³
Volume stored
446 hm³
Coordinates
35.871°N, 95.229°W
Last updated
2026-07-30
Current fill
44.2%vs 7 days ago
-0.1%losing
vs 1 year ago
-7.7%year-over-year
7-day trend
→stable
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: 2026-07-30.
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 July 30, 2026, Ft. Gibson Lake is filled to 44.2% of its total capacity, holding roughly 446 hm³ of water out of a maximum 1,010 hm³. At this level the reservoir is within its normal operating range.
Over the most recent week on record the fill level has held broadly steady (-0.1 pts), and it is 7.7 points below its level on the same date a year earlier.
Across the readings we hold for Ft. Gibson Lake — 330 data points between July 31, 2021 and July 30, 2026 — the level has ranged from a low of 42.2% (January 26, 2022) to a high of 100.0% (June 28, 2026). On average the reservoir is fullest around June and at its lowest around January.
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
- 44.2%
- Water stored
- 446 hm³
- Total capacity
- 1,010 hm³
- 7-day change
- ▼ 0.1 pts
- Year-on-year
- ▼ 7.7 pts
- Primary use
- Multipurpose
- River basin
- Oklahoma
- Operator
- USACE
- Coordinates
- 35.871°N, 95.229°W
- Last updated
- July 30, 2026
Recent readings
| Date | Fill level | Volume (hm³) |
|---|---|---|
| 30 Jul 2026 | 44.2% | 446 |
| 29 Jul 2026 | 44.3% | 447 |
| 28 Jul 2026 | 43.1% | 435 |
| 27 Jul 2026 | 43.2% | 436 |
| 26 Jul 2026 | 43.5% | 439 |
| 25 Jul 2026 | 43.7% | 441 |
| 24 Jul 2026 | 44.1% | 445 |
| 23 Jul 2026 | 45.3% | 458 |
| 22 Jul 2026 | 46.2% | 467 |
| 21 Jul 2026 | 48.0% | 484 |
| 20 Jul 2026 | 50.4% | 509 |
| 19 Jul 2026 | 52.9% | 534 |
Frequently asked questions
What is the current water level of Ft. Gibson Lake?
As of July 30, 2026, Ft. Gibson Lake is at 44.2% of its capacity, holding approximately 446 hm³ of water, according to USACE CWMS (US Army Corps of Engineers) data.
Is Ft. Gibson Lake reservoir full?
No. As of July 30, 2026, Ft. Gibson Lake is within its normal operating range at 44.2% 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 has been broadly stable over the latest week on record (-0.1 points).
How much water can Ft. Gibson Lake hold?
Ft. Gibson Lake has a total capacity of 1,010 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.