SAN ANTONIO, TEXAS — The National Weather Service Weather Prediction Center has issued its Tuesday Flash Flood Potential outlook at 5:03 AM EDT on May 26, 2026, placing Slight Risk zones across two separate and significant regions of the country — a large portion of Texas including the sensitive Hill Country region, and a broad swath of the Southeast stretching from Nashville through Raleigh — as moisture continues to stream in from the Gulf Coast to the Appalachians.
Slight Risk of Excessive Rainfall Covers Dallas, San Antonio, Houston and Texas Hill Country
The western Day One Excessive Rainfall Outlook shows a yellow Slight Risk zone blanketing a massive portion of Texas, covering Dallas, San Antonio, Houston, Midland, and Amarillo within its boundaries. The Hill Country region sitting between San Antonio and the broader central Texas corridor is specifically flagged as a sensitive area where a complex of storms could bring locally heavy rainfall capable of triggering rapid flash flooding…