One of the Scubaland instructors just sent this out.
This statement is found on the LCRA website:
LCRA is closing lakes Travis, Marble Falls, LBJ, Inks and Buchanan effective immediately, until further notice. Floodgate operations are underway at Wirtz Dam, which forms Lake LBJ, and Starcke Dam, which forms Lake Marble Falls. Take immediate action to protect people and property that may be affected. Water will be moving fast, and will be higher than usual at the upper end of lakes LBJ, Marble Falls and Travis. LCRA's Flood Operations Report has more information about current conditions in the Highland Lakes. Check LCRA's Hydromet for rainfall totals, stream flow and lake levels.
LCRA