Flash Flood Warning Issued for San Antonio Area Amid Heavy Rainfall

A Flash Flood Warning is active for Bexar County, including San Antonio, until 7 p.m. local time on Thursday, October 1, 2026, with 2.5 inches of rain already fallen and 1-3 more expected. A broader Flood Watch covers South-Central Texas until Friday, October 2, at 7 p.m., anticipating 2-4 inches of rain, locally up to 8 inches. Life-threatening flash flooding is expected, making travel unsafe and posing significant risks to urban areas and infrastructure. Another round of heavy rain is forecast overnight into early Friday.