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

Backup

Update on Lower Colorado River and Highland Lakes water supply conditions Austin Water | Water Forward Task Force Meeting | December 9, 2025 Highland Lakes Inflows Highland Lakes Inflows Average 1942 - Present Average 2008 - 2015 2024 Jan.-Nov. 2025 800,000 700,000 600,000 t e e F - e r c A 500,000 400,000 300,000 200,000 100,000 0 Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec 2 Lakes Buchanan & Travis Combined Storage t e e f - e r c a , e g a r o t S 2,200,000 2,000,000 1,800,000 1,600,000 1,400,000 1,200,000 1,000,000 800,000 600,000 400,000 200,000 0 Combined Storage of Lakes Buchanan and Travis January 1, 2005 through December 1, 2025 2.0M ac-ft Full Storage 0.6M ac-ft Interruptible stored water for non-Garwood agricultural operations was not provided by LCRA in 2012 through 2015 and beginning with the second growing season of 2022 through 2025. 2005 2006 2007 2008 2009 2010 2011 2012 2013 2014 2015 2016 2017 2018 2019 2020 2021 2022 2023 2024 2025 2026 2027 3 U.S. Drought Monitor 4 NOAA 3-month Outlook: January – March 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 winter.  A transition to ENSO-neutral is likely in January – March 2026 (61% chance). 6 Lakes Buchanan & Travis Combined Storage Projections 7 Questions? 8