Reservoir Storage Summary for River Basins on 2025-09-22

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
2025-09-22 2025-09-21 2025-09-20 2025-09-15 2025-08-22 2025-06-22 2025-03-22 2024-09-22
Brazos 90.6 90.6 90.7 91.1 92.4 93.5 88.2 88.9
Canadian 43.2 43.2 43.2 42.9 42.6 39.8 36.4 35.4
Colorado 65.3 65.4 65.5 65.8 67.6 45.2 43.5 46.7
Cypress 97.5 97.5 97.5 97.7 97.3 99.2 99.2 97.1
Guadalupe 68.5 68.5 68.6 69.0 70.0 50.8 50.3 57.8
Lavaca 82.8 82.9 83.2 84.3 90.3 99.2 65.2 90.8
Neches 77.9 78.0 78.1 78.7 78.8 97.5 99.9 97.2
Nueces 12.5 12.5 12.6 12.7 13.9 15.8 16.8 24.1
Red 93.3 93.2 93.2 93.5 94.6 96.1 85.2 87.2
Rio Grande 27.4 27.4 27.4 27.4 26.3 23.7 21.6 21.6
Sabine 89.7 89.8 90.0 90.3 93.6 99.5 96.3 88.6
San Antonio 5.9 6.0 6.0 6.1 6.3 2.6 2.2 3.1
San Jacinto 98.8 98.8 98.9 99.3 98.7 100.0 96.8 97.8
Sulphur 90.5 90.7 90.8 91.5 94.5 100.0 99.7 92.1
Trinity 95.1 95.1 95.2 95.8 96.7 99.8 96.4 92.0
*

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 90.6 3,252,678 3,238,516 3,576,076
Canadian 43.2 280,698 242,284 561,066
Colorado 65.3 2,683,173 2,626,038 4,019,576
Cypress 97.5 685,361 550,791 565,174
Guadalupe 68.5 280,681 280,610 409,821
Lavaca 82.8 136,859 131,646 158,975
Neches 77.9 2,738,643 2,709,069 3,477,212
Nueces 12.5 115,246 114,967 918,882
Red 93.3 3,560,390 2,309,271 2,474,646
Rio Grande 27.4 1,160,607 966,220 3,520,940
Sabine 89.7 5,416,650 3,469,892 3,867,301
San Antonio 5.9 15,148 15,148 254,823
San Jacinto 98.8 547,125 543,297 549,895
Sulphur 90.5 512,413 361,235 399,063
Trinity 95.1 6,521,698 6,443,774 6,776,855
**

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