Lake Thunderbird water level

Of full pool
74.9%
▼ 0.7 points since September 27, 2026

▼ 12.3 points from 87.2% a year ago

0%100% full
Current elevation
1035.82 ft
Reading as of
Sep 29, 2026

Source: data.usbr.gov/rise/api/catalog-item/134003, accessed October 1, 2026. Updated every 6 hours.

Lake Thunderbird is at 75% of full pool (1035.86 ft) as of September 28, 2026. Lake Thunderbird was last full on July 5, 2025 (95.3% of normal storage). Lake Thunderbird is near Norman, Oklahoma.

Lake Thunderbird level history

Last full
July 5, 2025
95.3% of normal storage
Highest since 1990
1,052.8 ft
May 24, 2015
Lowest since 1990
1,030.36 ft
December 15, 2006, counted after it first filled
Data covers
1990 to today
from April 1, 1990

This site counts a reservoir as full on a day its storage is at or above 95% of the dam's normal storage (National Inventory of Dams). Many reservoirs rarely reach 100%, even in wet years, because operators release water for irrigation, power or flood control before they fill, so this site treats 95% as full. Highs and lows are daily readings in the published data, not official records. Source: Bureau of Reclamation daily data.

Storage, % of full pool, since 1990

Lake Thunderbird storage, percent of full pool, since 1990: 97.3% on November 4, 1990, 75% on September 28, 2026.

Lake Thunderbird is falling: 75% full, down 0.6 percentage points since September 27, 2026.

On this same date last year (September 28, 2025), Lake Thunderbird was 87.2% full, 12.2 percentage points higher than today's 75%.

Weekly averages of the source's daily readings; older years may be monthly or sparser where that is all the source published. Download the charted data (JSON).

Latest
75%
September 28, 2026
Previous reading
75.6%
September 27, 2026
Same date last year
87.2%
September 28, 2025

Lake Thunderbird is at 35.2234, -97.2175. Open in OpenStreetMap.

Open in Google Maps Directions

The dam

Height
144 ft
Built
1964
Surface area
6,070 acres
Shoreline
86 mi
Name
Norman Dam
Operator
Bureau of Reclamation

Sources: nid.sec.usace.army.mil, accessed September 29, 2026 , recreation.gov/camping/gateways/1133, accessed September 29, 2026

Data source: Recreation.gov

On the water

No campgrounds, boat ramps, or swim spots linked to Lake Thunderbird yet.

Common questions

Lake Thunderbird is at 75% of full pool (1035.86 ft) as of September 28, 2026.
Lake Thunderbird was last full on July 5, 2025, when it held 95.3% of its normal storage (elevation 1,040.43 ft). This site counts a reservoir as full on a day its storage is at or above 95% of the dam's normal storage (National Inventory of Dams). Many reservoirs rarely reach 100%, even in wet years, because operators release water for irrigation, power or flood control before they fill, so this site treats 95% as full. Based on Bureau of Reclamation daily data since October 31, 1990.
In Bureau of Reclamation daily data since April 1, 1990, Lake Thunderbird's highest elevation was 1,052.8 ft on May 24, 2015. Its lowest after it first filled (October 31, 1990) was 1,030.36 ft on December 15, 2006. These are the highest and lowest daily readings in the published data, not official records.
Lake Thunderbird is near Norman, Oklahoma (35.2234, -97.2175).
Bureau of Reclamation operates the dam at Lake Thunderbird.
Lake Thunderbird's dam is used for Flood control, Recreation, Water supply.