Reservoir Storage Summary for River Basins on 2026-08-02

Definition Map for River Basins

Percent Full

Today Yesterday 2 days ago 1 week ago 1 month ago 3 months ago 6 months ago 1 year ago
2026-08-02 2026-08-01 2026-07-31 2026-07-26 2026-07-02 2026-05-02 2026-02-02 2025-08-02
Brazos 88.6 88.7 88.8 89.3 89.6 88.1 86.0 93.4
Canadian 38.2 38.2 38.3 38.5 39.3 40.0 41.5 42.6
Colorado 68.0 68.0 68.0 68.2 64.0 60.4 61.2 68.8
Cypress 93.1 93.4 93.5 94.2 94.6 93.3 95.8 98.1
Guadalupe 98.6 98.6 98.6 98.7 63.0 60.3 62.0 70.6
Lavaca 97.2 97.4 97.7 99.7 98.8 65.9 59.6 95.4
Neches 76.1 76.1 76.2 76.7 77.3 75.9 72.5 80.8
Nueces 31.4 30.2 28.5 25.8 15.8 7.7 9.5 14.7
Red 91.1 91.1 91.2 91.5 93.2 91.3 89.6 95.1
Rio Grande 33.7 33.7 33.8 33.8 28.6 27.8 28.8 26.9
Sabine 92.9 92.8 92.9 93.8 95.6 92.4 86.4 96.1
San Antonio 29.6 29.6 29.5 28.9 9.0 3.9 4.4 6.5
San Jacinto 98.4 98.4 98.5 99.3 99.3 96.7 95.7 99.3
Sulphur 89.5 89.7 89.9 90.7 92.8 87.3 79.1 97.9
Trinity 94.3 94.4 94.5 95.4 96.5 96.0 93.3 98.1
*

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 88.6 3,209,132 3,168,260 3,576,076
Canadian 38.2 252,726 214,312 561,066
Colorado 68.0 2,789,851 2,732,525 4,019,576
Cypress 93.1 662,218 551,756 592,377
Guadalupe 98.6 413,490 403,954 409,821
Lavaca 97.2 159,810 154,597 158,975
Neches 76.1 2,673,848 2,644,572 3,477,212
Nueces 31.4 288,571 288,292 918,882
Red 91.1 3,585,042 2,254,104 2,474,646
Rio Grande 33.7 1,421,317 1,187,634 3,520,940
Sabine 92.9 5,694,417 3,593,283 3,868,328
San Antonio 29.6 75,406 75,406 254,823
San Jacinto 98.4 544,875 541,047 549,895
Sulphur 89.5 556,873 357,232 399,063
Trinity 94.3 6,467,483 6,389,234 6,776,855
**

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