Reservoir Storage Summary for River Basins on 2025-09-18

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
2025-09-18 2025-09-17 2025-09-16 2025-09-11 2025-08-18 2025-06-18 2025-03-18 2024-09-18
Brazos 90.9 91.0 91.0 91.5 92.6 93.6 88.5 89.3
Canadian 42.9 42.9 42.9 43.0 42.7 39.8 36.6 35.4
Colorado 65.7 65.7 65.8 66.1 67.7 45.4 43.8 47.0
Cypress 97.7 97.7 97.7 97.8 97.5 99.3 99.2 97.3
Guadalupe 68.8 68.8 68.9 69.2 70.2 50.9 50.6 58.0
Lavaca 83.7 83.7 84.0 85.4 90.9 99.4 65.8 91.7
Neches 78.5 78.5 78.6 79.0 79.2 96.8 99.8 97.8
Nueces 12.7 12.7 12.7 13.0 14.0 15.7 16.9 24.3
Red 93.4 93.4 93.4 93.9 94.7 96.2 85.7 87.5
Rio Grande 27.6 27.6 27.6 27.5 26.2 23.8 21.8 21.4
Sabine 90.2 90.2 90.3 90.9 94.0 99.6 97.0 88.9
San Antonio 6.0 6.0 6.0 6.1 6.3 2.5 2.3 3.2
San Jacinto 99.2 99.2 99.3 99.6 98.3 100.0 96.8 98.2
Sulphur 91.2 91.2 91.3 92.0 95.2 100.0 100.0 92.6
Trinity 95.6 95.6 95.7 96.2 96.9 99.9 96.4 92.6
*

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 90.9 3,269,467 3,252,362 3,576,076
Canadian 42.9 279,376 240,962 561,066
Colorado 65.7 2,698,327 2,641,192 4,019,576
Cypress 97.7 692,561 551,942 565,174
Guadalupe 68.8 282,036 281,965 409,821
Lavaca 83.7 138,223 133,010 158,975
Neches 78.5 2,758,851 2,729,076 3,477,212
Nueces 12.7 116,889 116,610 918,882
Red 93.4 3,573,197 2,311,010 2,474,646
Rio Grande 27.6 1,159,252 970,260 3,520,940
Sabine 90.2 5,446,378 3,489,225 3,867,301
San Antonio 6.0 15,311 15,311 254,823
San Jacinto 99.2 549,558 545,730 549,895
Sulphur 91.2 520,579 364,053 399,063
Trinity 95.6 6,555,422 6,477,030 6,776,855
**

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