Flash Flood Watch cancelled for San Antonio, continues for coastal counties

Watch is in effect until 1 p.m. Thursday, May 20th

A Flash Flood Watch continues for areas south and east of San Antonio until Thursday afternoon (Copyright 2021 by KSAT - All rights reserved.)

UPDATE: As of Wednesday afternoon, the Flash Flood Watch has been cancelled for a portion of the KSAT viewing area, including Bexar County. The counties in green in the image above remain under the Flash Flood Watch until 1 p.m. Thursday.

ORIGINAL STORY: The National Weather Service has issued a Flash Flood Watch for the counties in GREEN. These areas could see an additional 2 to 6 inches of rainfall with pockets of 6+ inches of rain through 1 p.m. Thursday, May 20.

A “watch” means that residents in the affected area should watch out for the potential of flash flooding until 1 p.m. Thursday, May 20. If you eventually receive a flash flood WARNING, please stay indoors and off the roads if possible. If you must drive, remember: Turn Around, Don’t Drown.


Watch storms develop, move through San Antonio and South Texas with a live, updating Doppler radar.

More on flash flood watches, warnings:

Whenever you get a weather alert about flash flooding, it's important to know the difference between a WATCH and a WARNING. Meteorologist Sarah Spivey explains

Flash flood safety tips:

Did you know that only 6 inches of water is enough to sweep a person off their feet? Meteorologist Sarah Spivey gives some safety tips during a flash flooding event

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About the Authors:

Sarah Spivey is a San Antonio native who grew up watching KSAT. She has been a proud member of the KSAT Weather Authority Team since 2017. Sarah is a Clark High School and Texas A&M University graduate. She previously worked at KETN News. When Sarah is not busy forecasting, she enjoys hanging out with her husband and cat, and playing music.

Kaiti Blake is a child weather-geek-turned-meteorologist. A member of the KSAT Weather Authority, Kaiti is a co-host of the Whatever the Weather video podcast. After graduating from Texas Tech University, Kaiti worked at WJTV 12 in Jackson, Mississippi and KTAB in Abilene.