Rio-Grande River Basin Reservoirs: Monitored Water Supply Reservoirs are 31.7% full on 2023-05-31

Historical Data

Date Percent Full Reservoir Storage
(acre-ft)
Conservation Storage
(acre-ft)
Conservation Capacity
(acre-ft)
Today 2023-05-31 31.7 1,792,236 1,122,631 3,542,966
Yesterday 2023-05-30 31.5 1,782,088 1,116,150 3,542,966
2 days ago 2023-05-29 31.4 1,774,384 1,111,289 3,542,966
1 week ago 2023-05-24 31.1 1,757,935 1,102,260 3,542,966
1 month ago 2023-04-30 30.2 1,695,352 1,070,117 3,542,966
3 months ago 2023-02-28 31.9 2,009,807 1,131,581 3,542,966
6 months ago 2022-11-30 33.1 2,050,289 1,173,898 3,542,966
1 year ago 2022-05-31 31.7 1,438,735 1,121,994 3,542,966
*

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

Area Map

Reservoir Storage

Reservoir 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)
Amistad 1 37.6 1,067.66 -49.34 1,067,387 691,252 1,840,849 27,412
Falcon 1 22.3 266.15 -34.95 639,643 346,173 1,551,007 34,338
Red Bluff 56.4 2,817.07 -10.33 85,206 85,206 151,110 - n.a. -
footnotes
1

Lake Amistad and Lake Falcon straddle the border of Texas and Mexico. By treaty, Texas has rights to 56.2% of the total conservation capacity of Amistad and 58.6% of the total conservation capacity of Falcon. 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 the fixed percent of total conservation capacity. Conservation storage is based on the bi-weekly changing Texas share.