A massive line of severe thunderstorms blasted San Antonio and most of south Texas on Sunday night into Monday morning, at one point prompting tornado warnings for some counties. The storm dropped significant rainfall and caused damage in spots across the area, especially northeast of San Antonio. A Flash flood warning was posted in Bexar County in the hours immediately following the storm and continued as a stream flooding advisory until nearly daybreak.Bexar County took the brunt of the storm from about 10 p.m. to midnight Sunday night.