Active Weather Alerts
Flash Flood Warning
Issued: 8:41 AM Jun. 20, 2026 – National Weather Service
...FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 6 AM CDT EARLY THIS MORNING FOR NORTHWESTERN BEXAR, WEST CENTRAL COMAL AND SOUTH CENTRAL KENDALL COUNTIES... At 341 AM CDT, Doppler radar indicated thunderstorms producing heavy rain across the warned area. Between 2 and 3 inches of rain have fallen. 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, Boerne, Helotes, Fair Oaks Ranch, Bulverde, Shavano Park, Hollywood Park, Cross Mountain, Leon Springs, The Dominion, Timberwood Park, Bergheim, Government Canyon State Natural Area, Kronkosky State Natural Area, Hill Country Village, Grey Forest, Scenic Oaks, Fiesta Texas, Cascade Caverns and Specht Store. Light to moderate rains continue to fall over the warned area, with an additional 1/4 to 1/2 inch possible through 6 AM. This additional rain could maintain elevated flows on area creeks and streams and also further add to the flooding of poor drainage areas. PRECAUTIONARY/PREPAREDNESS ACTIONS... Turn around, don't drown when encountering flooded roads. Most flood deaths occur in vehicles. Be especially cautious at night when it is harder to recognize the dangers of flooding. In hilly terrain there are hundreds of low water crossings which are potentially dangerous in heavy rain. Do not attempt to cross flooded roads. Find an alternate route. && FLASH FLOOD...RADAR INDICATED; FLASH FLOOD DAMAGE THREAT...CONSIDERABLE
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