Reservoir · Oklahoma · United States · USACE CWMS
Hulah Lake
23.2% full
Capacity
97.22 hm³
Volume stored
23 hm³
Coordinates
36.929°N, 96.088°W
Last updated
2026-07-30
Current fill
23.2%vs 7 days ago
0.0%stable
vs 1 year ago
-1.2%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. 36.929, -96.088 · Open in Google Maps
About Hulah Lake
As of July 30, 2026, Hulah Lake is filled to 23.2% of its total capacity, holding roughly 23 hm³ of water out of a maximum 97 hm³. At this level the reservoir is low.
Over the most recent week on record the fill level has held broadly steady (+0.0 pts), and it is 1.2 points below its level on the same date a year earlier.
Across the readings we hold for Hulah Lake — 330 data points between July 31, 2021 and July 30, 2026 — the level has ranged from a low of 18.4% (October 10, 2021) to a high of 100.0% (June 28, 2026). On average the reservoir is fullest around July and at its lowest around September.
It is operated by USACE primarily for multiple purposes. It lies within the Oklahoma basin at 36.929°N, 96.088°W.
Key facts
- Current fill level
- 23.2%
- Water stored
- 23 hm³
- Total capacity
- 97 hm³
- 7-day change
- No change
- Year-on-year
- ▼ 1.2 pts
- Primary use
- Multipurpose
- River basin
- Oklahoma
- Operator
- USACE
- Coordinates
- 36.929°N, 96.088°W
- Last updated
- July 30, 2026
Recent readings
| Date | Fill level | Volume (hm³) |
|---|---|---|
| 30 Jul 2026 | 23.2% | 23 |
| 29 Jul 2026 | 23.2% | 23 |
| 28 Jul 2026 | 23.2% | 23 |
| 27 Jul 2026 | 23.3% | 23 |
| 26 Jul 2026 | 23.3% | 23 |
| 25 Jul 2026 | 23.3% | 23 |
| 24 Jul 2026 | 23.3% | 23 |
| 23 Jul 2026 | 23.3% | 23 |
| 22 Jul 2026 | 23.3% | 23 |
| 21 Jul 2026 | 24.6% | 24 |
| 20 Jul 2026 | 27.2% | 26 |
| 19 Jul 2026 | 29.6% | 29 |
Frequently asked questions
What is the current water level of Hulah Lake?
As of July 30, 2026, Hulah Lake is at 23.2% of its capacity, holding approximately 23 hm³ of water, according to USACE CWMS (US Army Corps of Engineers) data.
Is Hulah Lake reservoir full?
No. As of July 30, 2026, Hulah Lake is low at 23.2% of its capacity, so it is not full.
Is the water level at Hulah Lake rising or falling?
The level at Hulah Lake has been broadly stable over the latest week on record (0.0 points).
How much water can Hulah Lake hold?
Hulah Lake has a total capacity of 97 hm³.
Where is Hulah Lake reservoir located?
Hulah Lake is located in Oklahoma, United States, within the Oklahoma basin (coordinates 36.929°N, 96.088°W).
What is Hulah Lake used for?
Hulah Lake is used primarily for multiple purposes, and is managed by USACE.