South Climate Division Reservoirs: Monitored Water Supply Reservoirs are 15.3% full on 2025-05-23

Historical Data

Date Percent Full Reservoir Storage
(acre-ft)
Conservation Storage
(acre-ft)
Conservation Capacity
(acre-ft)
Today 2025-05-23 15.3 444,704 379,417 2,481,249
Yesterday 2025-05-22 15.3 444,938 379,651 2,481,249
2 days ago 2025-05-21 15.4 446,974 382,290 2,481,249
1 week ago 2025-05-16 15.7 454,340 388,489 2,481,249
1 month ago 2025-04-23 15.8 493,982 392,496 2,481,249
3 months ago 2025-02-23 16.6 489,275 412,547 2,481,249
6 months ago 2024-11-23 15.9 514,642 393,559 2,481,249
1 year ago 2024-05-23 16.1 492,630 399,575 2,481,249
*

 Percent Full is based on Conservation Storage and Conservation Capacity and doesn't account for storage in flood pool.

Area Map

Reservoir Storage

Reservoir Type Percent Full Water Level
(ft)
Height Above Conservation Pool
(ft)
Reservoir Storage
(acre-ft)
Conservation Storage
(acre-ft)
Conservation Capacity
(acre-ft)
Surface Area
(acres)
Choke Canyonas of 2025-05-22 Water Supply 14.1 185.38 -35.12 93,518 93,517 662,820 7,982
Corpus Christi Water Supply 20.0 79.57 -14.43 51,560 51,282 256,062 7,782
Falcon 1 Water Supply 14.9 254.53 -46.67 297,764 233,160 1,562,367 20,350
footnotes
1

Lake Falcon straddles the border of Texas and Mexico. By treaty, Texas has rights 58.6% of the total conservation capacity. The fraction of the actual storage that belongs to Texas is formally determined biweekly by the International Boundary Water Commission (IBWC). The IBWC is the legal repository of data related to this lake for treaty purposes and official versions of the datasets should be obtained directly from them. Conservation capacity is based on 58.6% of total conservation capacity. Conservation storage is based on the bi-weekly changing Texas share.