Reservoir Storage Summary for River Basins on 2025-12-21

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
2025-12-21 2025-12-20 2025-12-19 2025-12-14 2025-11-21 2025-09-21 2025-06-21 2024-12-21
Brazos 87.0 86.9 87.0 87.3 87.0 90.6 93.5 88.6
Canadian 41.9 41.9 41.9 41.9 42.2 43.1 39.8 36.5
Colorado 62.7 62.7 62.8 63.0 62.5 65.4 45.3 46.0
Cypress 96.2 96.2 96.3 96.3 95.7 97.5 99.1 96.7
Guadalupe 63.4 63.4 63.4 63.5 64.7 68.5 50.8 52.6
Lavaca 66.1 66.1 66.4 67.4 69.9 82.9 99.4 71.1
Neches 72.9 72.9 73.0 73.1 72.7 78.0 97.3 92.1
Nueces 10.5 10.5 10.6 10.5 10.7 12.5 15.9 19.6
Red 91.2 91.2 91.2 91.2 91.1 93.2 96.2 88.2
Rio Grande 27.0 27.1 27.3 27.4 26.7 27.5 23.8 21.1
Sabine 87.7 87.6 87.7 88.2 87.0 89.8 99.6 87.8
San Antonio 4.8 4.8 4.8 4.9 5.1 5.9 2.5 2.7
San Jacinto 96.4 96.4 96.4 96.6 95.6 98.8 100.0 95.6
Sulphur 82.4 82.5 82.6 83.0 83.9 90.7 100.0 81.3
Trinity 94.1 94.1 94.2 94.4 92.5 95.1 99.8 89.1
*

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 87.0 3,120,960 3,109,711 3,576,076
Canadian 41.9 273,344 234,930 561,066
Colorado 62.7 2,578,987 2,521,852 4,019,576
Cypress 96.2 663,619 543,865 565,174
Guadalupe 63.4 259,901 259,830 409,821
Lavaca 66.1 110,253 105,040 158,975
Neches 72.9 2,567,192 2,536,550 3,477,212
Nueces 10.5 96,814 96,535 918,882
Red 91.2 3,496,603 2,256,965 2,474,646
Rio Grande 27.0 1,110,660 951,716 3,520,940
Sabine 87.7 5,335,047 3,391,719 3,867,301
San Antonio 4.8 12,262 12,262 254,823
San Jacinto 96.4 534,365 530,078 549,895
Sulphur 82.4 442,620 329,006 399,063
Trinity 94.1 6,461,770 6,379,896 6,776,855
**

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