Possum Kingdom Lake: 98.4% full as of 2025-05-06

The elevation-storage rating curve used to produce the storage hydrograph is made of two segments: (1) the segment up to the conservation pool top (below the red line) is based on measured data, and (2) the segment in the flood pool (above the red line) is an extrapolation from the first segment and shouldn't be relied upon for flood storage information.

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 2025-05-06 98.4 998.52 529,594 529,594 538,139 17,691
Yesterday 2025-05-05 98.2 998.46 528,534 528,534 538,139 17,664
2 days ago 2025-05-04 97.5 998.23 524,483 524,483 538,139 17,561
1 week ago 2025-04-29 98.4 998.53 529,771 529,771 538,139 17,695
1 month ago 2025-04-06 98.2 998.45 528,358 528,358 538,139 17,659
3 months ago 2025-02-06 99.4 998.82 534,922 534,922 538,139 17,828
6 months ago 2024-11-06 92.5 996.67 497,645 497,645 538,139 16,839
1 year ago 2024-05-06 97.7 998.30 525,713 525,713 538,139 17,592
*

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 2025-05-06 00:00 998.52 999.00 -0.48 below operating pool
1 hour prior 2025-05-05 23:00 998.52 999.00 -0.48 below operating pool
2 hours prior 2025-05-05 22:00 998.53 999.00 -0.47 below operating pool
6 hours prior 2025-05-05 18:00 998.52 999.00 -0.48 below operating pool
12 hours prior 2025-05-05 12:00 998.54 999.00 -0.46 below operating pool
24 hours prior 2025-05-05 00:00 998.34 999.00 -0.66 below operating pool
48 hours prior 2025-05-04 00:00 998.29 999.00 -0.71 below operating pool
*

Data is provisional and subject to revision.

Additional Information

Impoundment date 1941-01-01
Vertical datum NGVD29
Dead pool elevation 874.80 ft above NGVD29
Service spillway crest elevation 987.00 ft above NGVD29
Emergency spillway crest elevation 1,000.00 ft above NGVD29
Top of dam elevation 1,024.00 ft above NGVD29
Conservation pool elevation 999.00 ft above NGVD29
Data download (CSV) period of record, last one year, last 30 days

Elevation-Area-Capacity Curves

1939-01-01 (source: BRA)
1944-01-01 (source: TWDB)
1962-01-01 (source: BRA)
1974-01-01 (source: BRA)
1994-06-01 (source: TWDB) : GIS Data
2005-01-01 (source: TWDB) : GIS Data
2016-12-01 (source: TWDB) : GIS Data
Data Source USGS:08088500

Lake Location