Reservoir Storage Summary for River Basins on 2025-05-01

Definition Map for River Basins

Percent Full

Most recent 1 day prior 2 days prior 1 week prior 1 month prior 3 months prior 6 months prior 1 year prior
2025-05-01 2025-04-30 2025-04-29 2025-04-24 2025-04-01 2025-02-01 2024-11-01 2024-05-01
Brazos 89.6 89.3 89.0 88.9 88.1 89.0 85.5 85.7
Canadian 36.8 36.7 36.7 36.3 36.4 36.6 34.8 39.2
Colorado 43.6 43.1 43.0 43.1 43.2 45.0 44.6 35.9
Cypress 99.3 99.2 99.2 99.2 99.2 99.3 96.4 99.3
Guadalupe 49.3 49.4 49.4 49.7 50.5 52.2 54.7 61.6
Lavaca 75.5 75.5 75.7 76.3 79.4 70.9 80.7 95.0
Neches 99.9 99.9 99.9 99.9 99.9 99.8 90.6 90.8
Nueces 16.4 16.4 16.5 16.7 17.6 18.7 21.7 27.6
Red 93.0 91.9 91.4 90.8 85.3 86.6 83.4 88.5
Rio Grande 21.2 21.2 21.2 21.5 22.1 21.9 21.2 20.8
Sabine 98.7 98.6 98.9 99.5 97.4 93.4 86.2 100.0
San Antonio 2.1 2.1 2.1 2.1 2.2 2.5 2.8 2.7
San Jacinto 100.0 100.0 100.0 100.0 99.9 99.5 95.0 100.0
Sulphur 99.4 99.2 99.2 99.3 100.0 100.0 85.1 100.0
Trinity 99.6 99.2 99.0 98.2 96.3 95.7 87.5 97.2
*

Percent Full is based on Conservation Storage and Conservation Capacity.

Recent Conditions

Percent Full Reservoir Storage
(acre-ft) 		Conservation Storage
(acre-ft) 		Conservation Capacity
(acre-ft)
Brazos 89.6 3,271,244 3,205,423 3,575,921
Canadian 36.8 244,669 206,255 561,066
Colorado 43.6 1,792,615 1,731,666 3,975,089
Cypress 99.3 800,542 561,067 565,174
Guadalupe 49.3 202,299 202,228 409,821
Lavaca 75.5 125,187 119,974 158,975
Neches 99.9 3,543,952 3,475,285 3,477,212
Nueces 16.4 151,235 150,956 918,882
Red 93.0 4,064,426 2,300,344 2,474,646
Rio Grande 21.2 1,004,517 744,771 3,520,940
Sabine 98.7 6,081,678 3,817,388 3,867,301
San Antonio 2.1 5,321 5,321 254,823
San Jacinto 100.0 556,789 549,895 549,895
Sulphur 99.4 731,685 396,657 399,063
Trinity 99.6 7,145,425 6,747,483 6,776,855
**

The grey areas represent coastal basins that have no contributing reservoirs present.