Reservoir · Oklahoma · United States · USACE CWMS
Arbuckle Lake
68.2% full
Capacity
134.25 hm³
Volume stored
92 hm³
Coordinates
34.444°N, 97.030°W
Last updated
2026-07-30
Current fill
68.2%vs 7 days ago
-0.1%losing
vs 1 year ago
-1.0%year-over-year
7-day trend
→stable
Data source: USACE CWMS — US Army Corps of Engineers — daily reservoir storage volume. Capacity is the design (normal full-pool) capacity from the US National Inventory of Dams (NID); fill % = current volume ÷ design capacity. 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. 34.444, -97.030 · Open in Google Maps
About Arbuckle Lake
As of July 30, 2026, Arbuckle Lake is filled to 68.2% of its total capacity, holding roughly 92 hm³ of water out of a maximum 134 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 1.0 points below its level on the same date a year earlier.
Across the readings we hold for Arbuckle Lake — 329 data points between July 31, 2021 and July 30, 2026 — the level has ranged from a low of 62.6% (February 20, 2022) to a high of 76.6% (June 24, 2026). On average the reservoir is fullest around June and at its lowest around February.
It is operated by USACE primarily for multiple purposes. It lies within the Oklahoma basin at 34.444°N, 97.030°W.
Key facts
- Current fill level
- 68.2%
- Water stored
- 92 hm³
- Total capacity
- 134 hm³
- 7-day change
- ▼ 0.1 pts
- Year-on-year
- ▼ 1.0 pts
- Primary use
- Multipurpose
- River basin
- Oklahoma
- Operator
- USACE
- Coordinates
- 34.444°N, 97.030°W
- Last updated
- July 30, 2026
Recent readings
| Date | Fill level | Volume (hm³) |
|---|---|---|
| 30 Jul 2026 | 68.2% | 92 |
| 29 Jul 2026 | 68.3% | 92 |
| 28 Jul 2026 | 68.4% | 92 |
| 27 Jul 2026 | 68.5% | 92 |
| 26 Jul 2026 | 68.6% | 92 |
| 25 Jul 2026 | 68.6% | 92 |
| 24 Jul 2026 | 68.7% | 92 |
| 23 Jul 2026 | 68.8% | 92 |
| 22 Jul 2026 | 68.9% | 92 |
| 21 Jul 2026 | 69.0% | 93 |
| 20 Jul 2026 | 69.0% | 93 |
| 19 Jul 2026 | 69.0% | 93 |
Frequently asked questions
What is the current water level of Arbuckle Lake?
As of July 30, 2026, Arbuckle Lake is at 68.2% of its capacity, holding approximately 92 hm³ of water, according to USACE CWMS (US Army Corps of Engineers) data.
Is Arbuckle Lake reservoir full?
No. As of July 30, 2026, Arbuckle Lake is within its normal operating range at 68.2% of its capacity, so it is not full.
Is the water level at Arbuckle Lake rising or falling?
The level at Arbuckle Lake has been broadly stable over the latest week on record (-0.1 points).
How much water can Arbuckle Lake hold?
Arbuckle Lake has a total capacity of 134 hm³.
Where is Arbuckle Lake reservoir located?
Arbuckle Lake is located in Oklahoma, United States, within the Oklahoma basin (coordinates 34.444°N, 97.030°W).
What is Arbuckle Lake used for?
Arbuckle Lake is used primarily for multiple purposes, and is managed by USACE.