Reservoir Storage Summary for River Basins on 2026-09-16

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
2026-09-16 2026-09-15 2026-09-14 2026-09-09 2026-08-16 2026-06-16 2026-03-16 2025-09-16
Brazos 82.5 82.7 82.8 83.4 86.8 89.9 86.1 91.0
Canadian 36.4 36.4 36.4 36.5 37.4 39.7 41.1 42.9
Colorado 63.8 63.9 64.1 64.6 66.8 64.0 60.6 65.8
Cypress 87.9 87.7 87.5 87.1 90.6 94.9 95.0 97.8
Guadalupe 97.1 97.1 97.3 97.8 98.3 62.6 60.9 68.9
Lavaca 85.3 85.5 85.7 86.9 93.1 98.3 54.7 84.0
Neches 70.7 70.8 70.9 71.4 74.1 76.5 75.0 78.6
Nueces 40.1 40.1 40.2 40.9 43.1 14.1 8.4 12.7
Red 85.1 85.1 85.3 86.2 89.6 93.9 90.6 93.4
Rio Grande 31.2 31.2 31.3 31.6 32.6 27.8 28.1 27.4
Sabine 87.6 87.7 87.9 88.4 90.5 95.8 91.2 90.3
San Antonio 29.2 29.2 29.3 29.5 30.0 5.3 4.1 6.0
San Jacinto 95.9 95.9 96.0 96.3 97.7 100.0 96.6 99.2
Sulphur 81.1 81.3 81.5 82.3 86.7 92.2 84.6 91.4
Trinity 86.7 86.9 87.1 87.9 91.4 96.9 95.6 95.8
*

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 82.5 2,962,476 2,950,784 3,576,076
Canadian 36.4 242,425 204,011 561,066
Colorado 63.8 2,623,337 2,566,202 4,019,576
Cypress 87.9 681,922 519,269 590,517
Guadalupe 97.1 397,835 397,764 409,821
Lavaca 85.3 140,893 135,680 158,975
Neches 70.7 2,487,178 2,457,799 3,477,212
Nueces 40.1 368,505 368,226 918,882
Red 85.1 3,303,977 2,105,169 2,474,646
Rio Grande 31.2 1,293,191 1,096,792 3,520,940
Sabine 87.6 5,385,881 3,390,293 3,868,328
San Antonio 29.2 74,355 74,355 254,823
San Jacinto 95.9 532,006 527,375 549,895
Sulphur 81.1 487,530 323,771 399,063
Trinity 86.7 5,955,248 5,878,059 6,776,855
**

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