Lake Conroe: 89.1% full as of 2022-11-27

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 2022-11-27 89.1 198.63 371,968 371,941 417,577 18,644
1 day prior 2022-11-26 88.9 198.59 371,223 371,196 417,577 18,626
2 days prior 2022-11-25 88.4 198.49 369,363 369,336 417,577 18,582
1 week prior 2022-11-20 88.1 198.42 368,063 368,036 417,577 18,551
1 month prior 2022-10-27 88.6 198.53 370,106 370,079 417,577 18,600
3 months prior 2022-08-27 92.1 199.30 384,566 384,539 417,577 18,975
6 months prior 2022-05-27 100.0 201.01 418,335 417,577 417,577 20,425
1 year prior 2021-11-27 94.2 199.76 393,351 393,324 417,577 19,224
*

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 2022-11-28 02:30 198.63 201.00 -2.37
1 hour prior 2022-11-28 01:30 198.63 201.00 -2.37
2 hours prior 2022-11-28 00:30 198.63 201.00 -2.37
6 hours prior 2022-11-27 20:30 198.63 201.00 -2.37
12 hours prior 2022-11-27 14:30 198.64 201.00 -2.36
24 hours prior 2022-11-27 02:30 198.61 201.00 -2.39
48 hours prior 2022-11-26 02:30 198.51 201.00 -2.49
*

Data is provisional and subject to revision.

Additional Information

Impoundment date 1973-01-01
Gauge USGS:08067600
Vertical datum NGVD29
Dead pool elevation 145.00 ft above NGVD29
Top of flood gate elevation 202.50 ft above NGVD29
Emergency spillway crest elevation 173.00 ft above NGVD29
Maximum design elevation 207.00 ft above NGVD29
Top of dam elevation 212.00 ft above NGVD29
Conservation pool elevation 201.00 ft above NGVD29
Data download (CSV) period of record, last one year, last 30 days

Elevation-Area-Capacity Curves

1973-01-01 (source: TWDB)
1996-04-01 (source: TWDB) : GIS Data
2010-08-01 (source: TWDB) : GIS Data
2020-10-01 (source: TWDB) : GIS Data

Lake Location