Whitney Lake: 94.7% full as of 2023-12-09

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 2023-12-09 94.7 531.67 536,094 534,740 564,808 21,996
Yesterday 2023-12-08 94.6 531.64 535,435 534,081 564,808 21,969
2 days ago 2023-12-07 94.6 531.64 535,435 534,081 564,808 21,969
1 week ago 2023-12-02 94.8 531.69 536,534 535,180 564,808 22,015
1 month ago 2023-11-09 94.9 531.74 537,636 536,282 564,808 22,061
3 months ago 2023-09-09 72.5 525.16 411,068 409,714 564,808 16,996
6 months ago 2023-06-09 82.6 528.33 467,822 466,468 564,808 18,888
1 year ago 2022-12-09 74.9 525.94 424,492 423,138 564,808 17,424
*

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 2023-12-09 11:15 531.69 533.00 -1.31 below flood pool
1 hour prior 2023-12-09 10:15 531.69 533.00 -1.31 below flood pool
2 hours prior 2023-12-09 09:15 531.69 533.00 -1.31 below flood pool
6 hours prior 2023-12-09 05:15 531.65 533.00 -1.35 below flood pool
12 hours prior 2023-12-08 23:15 531.64 533.00 -1.36 below flood pool
24 hours prior 2023-12-08 11:15 531.62 533.00 -1.38 below flood pool
48 hours prior 2023-12-07 11:15 531.62 533.00 -1.38 below flood pool
*

Data is provisional and subject to revision.

Additional Information

Impoundment date 1951-01-01
Vertical datum NGVD29
Dead pool elevation 448.83 ft above NGVD29
Service spillway crest elevation 533.00 ft above NGVD29
Top of flood gate elevation 571.00 ft above NGVD29
Emergency spillway crest elevation 571.00 ft above NGVD29
Flood pool elevation 571.00 ft above NGVD29
Maximum design elevation 573.00 ft above NGVD29
Top of dam elevation 584.00 ft above NGVD29
Conservation pool elevation 533.00 ft above NGVD29
Data download (CSV) period of record, last one year, last 30 days

Elevation-Area-Capacity Curves

2005-06-01 (source: TWDB) : GIS Data
Data Source USGS:08092500

Lake Location