Texas - United States   2026-04-20   Monday   29.56N, -98.27W

Schertz

Texas - United States
2026-04-20

Flash Flood Warning issued April 20 at 8:02PM CDT until April 20 at 9:00PM CDT by NWS Austin/San Antonio TX

Issue date: 2026-04-21T01:02+00:00

At 802 PM CDT, Doppler radar indicated thunderstorms producing heavy rain across the western part of Bexar County. This area of the county did not get a lot of rain earlier, however, a quick 0.25 to 0.5 inch and up to an inch of rainfall is possible a line of storms move over those area. Unfortunately, this heavy rain is moving toward the northern and central part of Bexar County, where between 2 and 4 inches of rain have fallen since mid to late afternoon. Additional rainfall amounts of 1 to 2 inches are possible over the northern and central Bexar County with storms training and rain filling from the southern part of the county. Flash flooding is ongoing or expected to begin shortly. HAZARD...Life threatening flash flooding. Thunderstorms producing flash flooding. SOURCE...Radar. IMPACT...Life threatening flash flooding of creeks and streams, urban areas, highways, streets and underpasses. Some locations that will experience flash flooding include... San Antonio, New Braunfels, Schertz, Seguin, Cibolo, Converse, Universal City, Live Oak, Selma, Randolph AFB, San Antonio Int Airport, Canyon Lake, Kirby, Alamo Heights, Windcrest, Terrell Hills, Bulverde, Garden Ridge, Shavano Park and Hollywood Park.