2_Update on Lower Colorado River and Highland Lakes water supply conditions — original pdf

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Update on Lower Colorado River and Highland Lakes water supply conditions Austin Water | Water Forward Task Force Meeting | October 14, 2025 Highland Lakes Inflows 2 0100,000200,000300,000400,000500,000600,000700,000800,000JanFebMarAprMayJunJulAugSepOctNovDecAcre-FeetHighland Lakes InflowsAverage 1942 - PresentAverage 2008 - 20152024Jan.-Sep. 2025Lakes Buchanan & Travis Combined Storage 3 0200,000400,000600,000800,0001,000,0001,200,0001,400,0001,600,0001,800,0002,000,0002,200,00020052006200720082009201020112012201320142015201620172018201920202021202220232024202520262027Storage, acre-feetCombined Storage of Lakes Buchanan and TravisJanuary 1, 2005 through October 1, 20250.6M ac-ft2.0M ac-ft Full StorageInterruptible stored water for non-Garwood agricultural operationswas not provided by LCRA in 2012 through 2015 and beginning with the second growing season of 2022 through 2025.U.S. Drought Monitor 4 NOAA 3-month Outlook: November – January The seasonal outlooks combine long-term trends, soil moisture, and El Nino/Southern Oscillation. 5 NOAA El Niño/Southern Oscillation Forecast ▪ La Niña conditions are present and are favored to persist through December 2025 – February 2026. ▪ A transition to ENSO-neutral is likely in January – March 2026 (55% chance). 6 Lakes Buchanan & Travis Combined Storage Projections 7 Questions? 8