Falcon Reservoir: 33.6% full as of 2019-07-23

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.

Historical Data

Date Percent Full Mean Water Level
(ft)
Reservoir Storage
(acre-ft)
Conservation Storage
(acre-ft)
Conservation Capacity
(acre-ft)
Surface Area
(acres)
Today 2019-07-23 33.6 268.51 722,334 521,144 1,551,007 36,993
Yesterday 2019-07-22 33.7 268.59 725,245 523,244 1,551,007 37,087
2 days ago 2019-07-21 33.9 268.72 729,753 526,497 1,551,007 37,234
1 week ago 2019-07-16 35.1 269.40 754,217 544,148 1,551,007 38,005
1 month ago 2019-06-23 36.8 270.31 788,699 571,428 1,551,007 39,050
3 months ago 2019-04-23 49.0 274.41 959,723 759,744 1,551,007 43,909
6 months ago 2019-01-23 50.3 275.80 1,022,917 779,443 1,551,007 45,622
1 year ago 2018-07-23 30.2 264.04 571,150 467,921 1,551,007 31,988
*

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

**

   Values above, including today's are averaged conditions. For near real-time instantaneous water level, see table below or the interactive map viewer.

Most Recent Instantaneous Water Level

Date/time Water Level
(ft)
Conservation Pool Elevation
(ft)
Height Above Conservation Pool
(ft)
Most recent 2019-07-23 07:15 268.51 301.10 -32.59 below flood pool
1 hour prior 2019-07-23 06:15 268.51 301.10 -32.59 below flood pool
2 hours prior 2019-07-23 05:15 268.51 301.10 -32.59 below flood pool
6 hours prior 2019-07-23 01:15 268.51 301.10 -32.59 below flood pool
12 hours prior 2019-07-22 19:15 - n.a. - - n.a. - - n.a. - into flood pool
24 hours prior 2019-07-22 07:15 268.58 301.10 -32.52 below flood pool
48 hours prior 2019-07-21 07:15 268.72 301.10 -32.38 below flood pool
*

Data is provisional and subject to revision.

Additional Information

Impoundment date 1954-01-01
Vertical datum NGVD29
Gauge IBWC:08-4612.00
Dead pool elevation 204.34 ft above NGVD29
Service spillway crest elevation 256.70 ft above NGVD29
Volume under conservation pool elevation 2,646,817.00 ac-ft
Dead pool volume 47.00 ac-ft
Top of flood gate elevation 306.70 ft above NGVD29
Emergency spillway crest elevation 306.70 ft above NGVD29
Maximum design elevation 314.20 ft above NGVD29
Top of dam elevation 323.00 ft above NGVD29
Conservation pool elevation 301.10 ft above NGVD29
Data download (CSV) period of record, last one year, last 30 days

Lake Location