Moss Lake is 100.0% full as of 2016-05-25

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)
Today 2016-05-25 100.0 715.25 24,425 24,058 24,058 - n.a. -
Yesterday 2016-05-24 100.0 715.33 24,512 24,058 24,058 - n.a. -
2 days ago 2016-05-23 100.0 715.05 24,209 24,058 24,058 1,096
1 week ago 2016-05-18 97.0 714.32 23,426 23,329 24,058 1,063
1 month ago 2016-04-25 90.6 712.86 21,900 21,803 24,058 1,028
3 months ago 2016-02-25 95.4 713.96 23,045 22,948 24,058 1,055
6 months ago 2015-11-25 99.1 714.81 23,950 23,853 24,058 1,075
1 year ago 2015-05-25 100.0 716.35 25,635 24,058 24,058 - 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 2016-05-25 05:15 715.24 715.0 0.2 into flood pool
1 hour prior 2016-05-25 04:15 715.24 715.0 0.2 into flood pool
2 hours prior 2016-05-25 03:15 715.25 715.0 0.2 into flood pool
6 hours prior 2016-05-24 23:15 715.26 715.0 0.3 into flood pool
12 hours prior 2016-05-24 17:15 715.30 715.0 0.3 into flood pool
24 hours prior 2016-05-24 05:15 715.36 715.0 0.4 into flood pool
48 hours prior 2016-05-23 05:15 714.58 715.0 -0.4 below flood pool
*

Data is provisional and subject to revision.

Additional Information

Impoundment date 1966-01-01
Vertical datum NGVD29
Gauge USGS:07315950
Dead pool elevation 666.0 ft above NGVD29
Service spillway crest elevation 715 ft above NGVD29
Conservation pool elevation 715.0 ft above NGVD29
Emergency spillway crest elevation 725 ft above NGVD29
Top of dam elevation 740.0 ft above NGVD29
Top of dam elevation 741.0 ft above NGVD29
Data download (CSV) period of record, last one year, last 30 days

Elevation-Area-Capacity Curves

1966-01-01 (source: usgs)
1999-05-01 (source: twdb) : GIS Data