Possum Kingdom Lake: 91.3% full as of 2026-01-20

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 2026-01-20 91.3 996.29 491,280 491,280 538,139 16,657
Yesterday 2026-01-19 91.3 996.30 491,446 491,446 538,139 16,662
2 days ago 2026-01-18 91.4 996.31 491,613 491,613 538,139 16,667
1 week ago 2026-01-13 91.6 996.39 492,949 492,949 538,139 16,707
1 month ago 2025-12-20 92.3 996.61 496,635 496,635 538,139 16,812
3 months ago 2025-10-20 93.5 997.01 503,397 503,397 538,139 16,996
6 months ago 2025-07-20 100.0 999.19 541,552 538,139 538,139 18,012
1 year ago 2025-01-20 99.6 998.89 536,172 536,172 538,139 17,861
*

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 2026-01-20 06:45 996.29 999.00 -2.71 below operating pool
1 hour prior 2026-01-20 05:45 996.28 999.00 -2.72 below operating pool
2 hours prior 2026-01-20 04:45 996.30 999.00 -2.70 below operating pool
6 hours prior 2026-01-20 00:45 996.28 999.00 -2.72 below operating pool
12 hours prior 2026-01-19 18:45 996.29 999.00 -2.71 below operating pool
24 hours prior 2026-01-19 06:45 996.29 999.00 -2.71 below operating pool
48 hours prior 2026-01-18 06:45 996.31 999.00 -2.69 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