Falcon Reservoir: 27.5% full as of 2020-04-01

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 2020-04-01 27.5 264.19 575,999 427,102 1,551,007 32,158
Yesterday 2020-03-31 28.2 264.65 590,567 437,905 1,551,007 32,666
2 days ago 2020-03-30 28.9 265.06 603,784 447,706 1,551,007 33,123
1 week ago 2020-03-25 29.7 265.61 621,224 460,639 1,551,007 33,735
1 month ago 2020-03-01 31.5 263.52 554,619 488,803 1,551,007 31,411
3 months ago 2020-01-01 32.4 265.47 616,693 502,242 1,551,007 33,578
6 months ago 2019-10-01 30.7 266.17 640,659 475,814 1,551,007 34,370
1 year ago 2019-04-01 49.8 275.60 1,013,206 772,858 1,551,007 45,369
*

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 2020-04-01 10:45 264.11 301.10 -36.99 below flood pool
1 hour prior 2020-04-01 09:45 264.13 301.10 -36.97 below flood pool
2 hours prior 2020-04-01 08:45 264.15 301.10 -36.95 below flood pool
6 hours prior 2020-04-01 04:45 264.20 301.10 -36.90 below flood pool
12 hours prior 2020-03-31 22:45 - n.a. - - n.a. - - n.a. - into flood pool
24 hours prior 2020-03-31 10:45 264.60 301.10 -36.50 below flood pool
48 hours prior 2020-03-30 10:45 264.93 301.10 -36.17 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