Reservoir · Oklahoma · United States · BOR RISE
Lake Thunderbird and Norman Dam
83.8% full
Capacity
147.52 hm³
Volume stored
124 hm³
Coordinates
35.221°N, 97.218°W
Last updated
2026-06-10
Current fill
83.8%vs 7 days ago
-0.2%losing
vs 1 year ago
-0.5%year-over-year
7-day trend
→stable
Data source: BOR RISE — US Bureau of Reclamation — 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: 2026-06-10.
Catchment Weather
Past 30 days + 14-day forecast · Open-Meteo
Satellite imagery: Esri, Maxar, Earthstar Geographics. Map: Esri, HERE, Garmin, © OpenStreetMap contributors. 35.221, -97.218 · Open in Google Maps
About Lake Thunderbird and Norman Dam
As of June 10, 2026, Lake Thunderbird and Norman Dam is filled to 83.8% of its total capacity, holding roughly 124 hm³ of water out of a maximum 148 hm³. At this level the reservoir is high.
Over the most recent week on record the fill level has held broadly steady (-0.2 pts), and it sits close to where it was a year earlier.
Across the readings we hold for Lake Thunderbird and Norman Dam — 1824 data points between June 13, 2021 and June 10, 2026 — the level has ranged from a low of 76.6% (November 25, 2022) to a high of 105.0% (June 29, 2021). On average the reservoir is fullest around June and at its lowest around December.
It is operated by BOR primarily for multiple purposes. It lies within the Oklahoma basin at 35.221°N, 97.218°W.
Key facts
- Current fill level
- 83.8%
- Water stored
- 124 hm³
- Total capacity
- 148 hm³
- 7-day change
- ▼ 0.2 pts
- Year-on-year
- ▼ 0.5 pts
- Primary use
- Multipurpose
- River basin
- Oklahoma
- Operator
- BOR
- Coordinates
- 35.221°N, 97.218°W
- Last updated
- June 10, 2026
Recent readings
| Date | Fill level | Volume (hm³) |
|---|---|---|
| 10 Jun 2026 | 83.8% | 124 |
| 9 Jun 2026 | 84.0% | 124 |
| 8 Jun 2026 | 84.1% | 124 |
| 7 Jun 2026 | 84.1% | 124 |
| 6 Jun 2026 | 84.1% | 124 |
| 5 Jun 2026 | 84.1% | 124 |
| 4 Jun 2026 | 84.2% | 124 |
| 3 Jun 2026 | 84.3% | 124 |
| 2 Jun 2026 | 84.4% | 125 |
| 1 Jun 2026 | 84.5% | 125 |
| 31 May 2026 | 84.6% | 125 |
| 30 May 2026 | 84.6% | 125 |
Frequently asked questions
What is the current water level of Lake Thunderbird and Norman Dam?
As of June 10, 2026, Lake Thunderbird and Norman Dam is at 83.8% of its capacity, holding approximately 124 hm³ of water, according to BOR RISE (US Bureau of Reclamation) data.
Is Lake Thunderbird and Norman Dam reservoir full?
No. As of June 10, 2026, Lake Thunderbird and Norman Dam is high at 83.8% of its capacity, so it is not full.
Is the water level at Lake Thunderbird and Norman Dam rising or falling?
The level at Lake Thunderbird and Norman Dam has been broadly stable over the latest week on record (-0.2 points).
How much water can Lake Thunderbird and Norman Dam hold?
Lake Thunderbird and Norman Dam has a total capacity of 148 hm³.
Where is Lake Thunderbird and Norman Dam reservoir located?
Lake Thunderbird and Norman Dam is located in Oklahoma, United States, within the Oklahoma basin (coordinates 35.221°N, 97.218°W).
What is Lake Thunderbird and Norman Dam used for?
Lake Thunderbird and Norman Dam is used primarily for multiple purposes, and is managed by BOR.