Reservoir Storage Summary for River Basins on 2026-03-23

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
2026-03-23 2026-03-22 2026-03-21 2026-03-16 2026-02-23 2025-12-23 2025-09-23 2025-03-23
Brazos 85.7 85.7 85.7 86.1 86.0 86.9 90.4 88.2
Canadian 41.0 41.0 41.1 41.1 41.4 41.9 43.1 36.4
Colorado 60.2 60.3 60.3 60.6 60.9 62.7 65.2 43.5
Cypress 94.5 94.5 94.6 95.0 94.2 96.2 97.4 99.2
Guadalupe 60.6 60.6 60.7 60.9 61.6 63.3 68.4 50.3
Lavaca 52.9 52.9 53.1 54.7 57.3 65.8 82.2 65.1
Neches 75.4 75.4 75.3 74.9 73.7 72.8 77.8 99.9
Nueces 8.3 8.3 8.4 8.5 9.0 10.3 12.4 16.8
Red 90.4 90.5 90.5 90.6 91.0 91.2 93.3 85.2
Rio Grande 27.7 27.7 27.8 28.1 28.6 27.1 27.5 21.6
Sabine 90.3 90.1 90.2 91.2 88.3 87.6 89.6 96.3
San Antonio 4.0 4.0 4.1 4.1 4.3 4.8 5.9 2.2
San Jacinto 96.0 96.0 96.0 96.7 96.0 96.4 98.7 96.8
Sulphur 83.9 84.0 84.1 84.6 85.2 82.3 90.5 99.7
Trinity 95.4 95.4 95.5 95.6 94.6 94.0 95.4 96.3
*

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 85.7 3,075,818 3,063,660 3,576,076
Canadian 41.0 268,545 230,131 561,066
Colorado 60.2 2,478,500 2,421,365 4,019,576
Cypress 94.5 653,601 534,222 565,174
Guadalupe 60.6 248,491 248,420 409,821
Lavaca 52.9 89,293 84,080 158,975
Neches 75.4 2,652,862 2,622,729 3,477,212
Nueces 8.3 76,494 76,215 918,882
Red 90.4 3,478,059 2,237,675 2,474,646
Rio Grande 27.7 1,068,816 975,606 3,520,940
Sabine 90.3 5,505,532 3,491,879 3,868,328
San Antonio 4.0 10,279 10,279 254,823
San Jacinto 96.0 532,204 528,146 549,895
Sulphur 83.9 443,791 334,995 399,063
Trinity 95.4 6,564,201 6,466,416 6,776,855
**

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