Reservoir Storage Summary for River Basins on 2025-08-18

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
2025-08-18 2025-08-17 2025-08-16 2025-08-11 2025-07-18 2025-05-18 2025-02-18 2024-08-18
Brazos 92.6 92.6 92.7 92.9 93.9 91.5 89.2 89.8
Canadian 42.7 42.7 42.7 42.8 41.6 38.3 36.4 36.7
Colorado 67.8 67.8 67.9 68.2 68.8 42.8 44.7 43.4
Cypress 97.5 97.6 97.6 97.8 98.9 99.2 99.2 98.7
Guadalupe 70.2 70.2 70.3 70.5 69.7 48.4 51.9 59.8
Lavaca 93.7 94.4 95.2 95.4 98.8 74.3 69.8 97.4
Neches 79.3 79.4 79.5 80.0 90.2 99.9 99.9 99.7
Nueces 14.1 14.1 14.1 14.4 15.0 15.9 18.2 25.3
Red 94.8 94.8 94.8 94.8 95.9 95.7 85.4 90.8
Rio Grande 26.2 26.2 26.2 26.5 25.8 23.2 22.2 19.9
Sabine 94.0 94.1 94.1 94.9 97.9 100.0 98.2 92.1
San Antonio 6.3 6.3 6.3 6.4 6.0 2.0 2.4 3.4
San Jacinto 98.4 98.4 98.4 98.7 100.0 99.7 97.5 99.0
Sulphur 95.3 95.4 95.6 96.3 99.6 100.0 100.0 96.8
Trinity 97.0 97.0 97.1 97.4 99.6 99.9 96.8 96.2
*

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 92.6 3,340,398 3,311,156 3,576,076
Canadian 42.7 277,742 239,328 561,066
Colorado 67.8 2,780,874 2,723,739 4,019,576
Cypress 97.5 681,201 551,252 565,174
Guadalupe 70.2 287,636 287,565 409,821
Lavaca 93.7 154,117 148,904 158,975
Neches 79.3 2,787,908 2,758,139 3,477,212
Nueces 14.1 129,656 129,377 918,882
Red 94.8 3,699,032 2,345,332 2,474,646
Rio Grande 26.2 1,134,823 922,430 3,520,940
Sabine 94.0 5,718,262 3,636,648 3,867,301
San Antonio 6.3 15,999 15,999 254,823
San Jacinto 98.4 546,663 540,998 549,895
Sulphur 95.3 556,178 380,117 399,063
Trinity 97.0 6,653,865 6,574,039 6,776,855
**

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