Reservoir Storage Summary for River Basins on 2026-05-03

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
2026-05-03 2026-05-02 2026-05-01 2026-04-26 2026-04-03 2026-02-03 2025-11-03 2025-05-03
Brazos 88.1 88.1 88.0 87.8 85.1 86.0 87.5 90.2
Canadian 39.9 40.0 40.0 40.2 40.8 41.5 42.4 36.9
Colorado 60.4 60.4 60.4 60.3 59.7 61.2 62.9 43.2
Cypress 97.3 97.3 97.3 97.2 94.2 95.8 96.0 99.3
Guadalupe 60.3 60.3 60.2 60.0 60.2 62.0 65.5 49.3
Lavaca 67.2 65.6 64.8 64.1 50.7 59.5 73.5 75.4
Neches 75.9 75.9 75.9 75.9 75.6 72.5 74.0 100.0
Nueces 7.6 7.7 7.7 7.7 7.9 9.5 11.2 16.4
Red 91.3 91.4 91.4 91.5 90.0 89.6 91.6 93.9
Rio Grande 27.5 27.5 27.5 27.5 26.6 28.8 27.4 21.4
Sabine 92.3 92.4 92.3 91.6 90.0 86.5 87.5 99.4
San Antonio 3.9 3.9 3.9 3.9 3.9 4.4 5.3 2.1
San Jacinto 96.7 96.7 95.5 93.9 95.9 95.8 96.1 100.0
Sulphur 87.2 87.3 87.3 86.8 83.0 79.1 84.6 99.5
Trinity 95.9 96.0 96.0 95.8 95.2 93.3 92.8 99.7
*

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 88.1 3,177,522 3,151,004 3,576,076
Canadian 39.9 262,543 224,129 561,066
Colorado 60.4 2,486,557 2,429,422 4,019,576
Cypress 97.3 669,194 549,815 565,174
Guadalupe 60.3 247,037 246,966 409,821
Lavaca 67.2 112,071 106,858 158,975
Neches 75.9 2,668,754 2,637,691 3,477,212
Nueces 7.6 70,473 70,194 918,882
Red 91.3 3,533,829 2,260,282 2,474,646
Rio Grande 27.5 1,080,261 966,517 3,520,940
Sabine 92.3 5,627,542 3,569,498 3,868,328
San Antonio 3.9 9,884 9,884 254,823
San Jacinto 96.7 541,467 531,628 549,895
Sulphur 87.2 464,385 348,066 399,063
Trinity 95.9 6,640,906 6,501,465 6,776,855
**

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