Whitney Lake is 96.6% full as of 2016-07-25

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, while 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.

Date Percent Full Mean Water Level
(ft)
Reservoir Storage
(acre-ft)
Conservation Storage
(acre-ft)
Conservation Capacity
(acre-ft)
Surface Area
(acres)
Most recent 2016-07-25 96.6 532.17 535,561 534,702 553,344 22,152
1 day prior 2016-07-24 97.0 532.27 537,779 536,920 553,344 22,226
2 days prior 2016-07-23 97.6 532.41 540,899 540,040 553,344 22,330
1 week prior 2016-07-18 100.0 533.02 554,659 553,344 553,344 - n.a. -
1 month prior 2016-06-25 100.0 548.89 1,010,253 553,344 553,344 - n.a. -
3 months prior 2016-04-25 100.0 550.55 1,068,767 553,344 553,344 - n.a. -
6 months prior 2016-01-25 97.6 532.42 541,122 540,263 553,344 22,338
1 year prior 2015-07-25 100.0 533.45 564,527 553,344 553,344 - n.a. -
*

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 2016-07-25 17:15 532.10 533.0 -0.9 below flood pool
1 hour prior 2016-07-25 16:15 532.12 533.0 -0.9 below flood pool
2 hours prior 2016-07-25 15:15 532.14 533.0 -0.9 below flood pool
6 hours prior 2016-07-25 11:15 532.18 533.0 -0.8 below flood pool
12 hours prior 2016-07-25 05:15 532.18 533.0 -0.8 below flood pool
24 hours prior 2016-07-24 17:15 532.24 533.0 -0.8 below flood pool
48 hours prior 2016-07-23 17:15 532.36 533.0 -0.6 below flood pool
*

Data is provisional and subject to revision.

Additional Information

Impoundment date 1951-01-01
Vertical datum NGVD29
Gauge USGS:08092500
Dead pool elevation 448.83 ft above NGVD29
Service spillway crest elevation 533 ft above NGVD29
Conservation pool elevation 533.0 ft above NGVD29
Top of flood gate elevation 571 ft above NGVD29
Emergency spillway crest elevation 571 ft above NGVD29
Flood pool elevation 571 ft above NGVD29
Maximum design elevation 573 ft above NGVD29
Top of dam elevation 584 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