Possum Kingdom Lake: 93.3% full as of 2025-10-22

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)
Most recent 2025-10-22 93.3 996.94 502,209 502,209 538,139 16,964
1 day prior 2025-10-21 93.4 996.98 502,888 502,888 538,139 16,982
2 days prior 2025-10-20 93.5 997.01 503,397 503,397 538,139 16,996
1 week prior 2025-10-15 94.1 997.18 506,293 506,293 538,139 17,077
1 month prior 2025-09-22 96.2 997.83 517,494 517,494 538,139 17,382
3 months prior 2025-07-22 100.0 999.16 541,012 538,139 538,139 17,997
6 months prior 2025-04-22 98.9 998.68 532,431 532,431 538,139 17,764
1 year prior 2024-10-22 92.7 996.73 498,657 498,657 538,139 16,867
*

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 2025-10-22 23:45 996.92 999.00 -2.08 below operating pool
1 hour prior 2025-10-22 22:45 996.92 999.00 -2.08 below operating pool
2 hours prior 2025-10-22 21:45 996.91 999.00 -2.09 below operating pool
6 hours prior 2025-10-22 17:45 996.91 999.00 -2.09 below operating pool
12 hours prior 2025-10-22 11:45 996.93 999.00 -2.07 below operating pool
24 hours prior 2025-10-21 23:45 996.97 999.00 -2.03 below operating pool
48 hours prior 2025-10-20 23:45 997.04 999.00 -1.96 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