Lake Travis Water Level Forecast (as of 8/2/2021) Author: David Ferreira (Resume) Data Source:   Lower Colorado River Authority This document is not intended for publication and is only a personal record of a forecast made on 8/2/2021, for tracking purposes. This original forecast is provided free of charge to interested members of the general public as a courtesy. No warranty is made as to the accuracy. Historical Fig. 1:  Lake Travis water level decomposed: Actual (top), Trend-Cycle (2nd), Seasonal (3rd), and Error (bottom) Forecast Fig. 2: Lake Travis monthly mean water level 6-month forecast with confidence intervals Fig. 3: Lake Travis monthly mean water level 1/2020 through 12/2021 Fig. 4: Lake Travis monthly mean historical with forecast Forecast Data   Mean Lo.80 Hi.80 Lo.95 Hi.95 Actual Δ ...