Reservoir Storage Summary for River Basins on 2026-04-13

Definition Map for River Basins

Percent Full

Most recent 1 day prior 2 days prior 1 week prior 1 month prior 3 months prior 6 months prior 1 year prior
2026-04-13 2026-04-12 2026-04-11 2026-04-06 2026-03-13 2026-01-13 2025-10-13 2025-04-13
Brazos 86.3 85.7 85.2 85.4 86.1 86.2 88.5 88.2
Canadian 40.1 39.8 39.8 40.8 41.2 41.8 42.6 36.4
Colorado 59.8 59.4 59.3 59.6 60.7 61.7 63.8 42.8
Cypress 96.7 96.5 96.5 96.1 94.8 96.1 96.7 99.2
Guadalupe 59.8 59.8 60.0 60.0 61.1 62.5 67.0 49.9
Lavaca 51.9 50.9 49.8 50.4 54.8 62.0 77.6 77.0
Neches 75.8 75.8 75.8 75.7 74.3 72.7 75.7 99.9
Nueces 7.8 7.8 7.8 7.9 8.6 10.0 12.0 17.0
Red 90.7 90.9 91.1 91.3 90.7 91.0 92.2 88.3
Rio Grande 26.9 26.9 26.8 26.7 28.2 28.6 27.8 21.9
Sabine 91.3 91.1 91.3 91.3 89.7 87.4 88.4 98.2
San Antonio 3.8 3.8 3.9 3.9 4.1 4.6 5.6 2.1
San Jacinto 96.2 96.1 96.0 96.1 96.5 95.9 96.7 99.5
Sulphur 85.9 85.9 85.9 85.9 84.8 80.6 87.3 99.5
Trinity 95.5 95.5 95.5 95.6 95.6 93.2 92.9 96.6
*

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 86.3 3,099,790 3,084,874 3,576,076
Canadian 40.1 263,237 224,823 561,066
Colorado 59.8 2,460,663 2,403,528 4,019,576
Cypress 96.7 665,808 546,429 565,174
Guadalupe 59.8 245,076 245,005 409,821
Lavaca 51.9 87,733 82,520 158,975
Neches 75.8 2,667,026 2,636,845 3,477,212
Nueces 7.8 72,281 72,002 918,882
Red 90.7 3,476,649 2,244,458 2,474,646
Rio Grande 26.9 1,051,851 947,582 3,520,940
Sabine 91.3 5,558,019 3,530,688 3,868,328
San Antonio 3.8 9,798 9,798 254,823
San Jacinto 96.2 536,508 529,111 549,895
Sulphur 85.9 442,228 342,877 399,063
Trinity 95.5 6,628,933 6,472,574 6,776,855
**

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