On Oct. 18, Canyon Lake was 97.1% of conservation storage and 1.35 feet below the top of its conservation pool; GBRA forecast a 100 cubic feet per second release from Canyon Dam.
The Texas Water Development Board’s percentage describes stored water, the U.S. Army Corps of Engineers’ figure describes lake elevation, and the Guadalupe-Blanco River Authority’s figure describes a planned flow through the dam.
From the source record
Note: Canyon Lake is full at the top of its conservation pool, 909 ft; a negative difference is feet below full.U.S. Army Corps of Engineers, Fort Worth District ↗
Lake and river users have a dated lake-level reading and a separate dam-release forecast to check before making plans. The Corps measured the lake at 907.65 feet above sea level at 10 p.m. Central on Oct. 18. Its conservation pool tops out at 909 feet. A level 1.35 feet below that mark and a storage figure of 97.1% describe different measures of the same reservoir.
The Corps’ row also listed a release of 105 cubic feet per second at its observation time. GBRA’s separate 100 cfs forecast was captured later that night, at 11:09 p.m. Central. One is a reported reading; the other is a forecast. The figures do not establish a closure or tell users what conditions will be at a particular river access point.
For the next reading, users can check the Corps’ reservoir report for lake elevation and reported release, the water board’s Canyon Lake page for conservation storage, and GBRA’s river conditions page for its current dam-release forecast. The next GBRA posting will show whether the forecast remains at 100 cfs.