Event narrative (NOAA)
The area of extremely heavy rainfall associated with the remains of Tropical Storm Erin continued to spread northwestward across Bexar County, with a general 4 to 5 inch rain over the county. Totals of up to 8 inches were reported at several locations in the south and west parts of San Antonio as well as between Helotes and Leon Springs. By 1400 CST, most roads in the northwest part of the county were closed. By 1530 CST that afternoon, more than 39 high water rescues were reportedly underway in San Antonio. Water was almost waist-deep at Southcross Boulevard in San Antonio. Floodwaters were so deep and running so swiftly at the San Antonio High School West Campus that they collapsed a masonry wall and filled the school with almost five feet of muddy water. Hallways were flooded, and
Other notable flash flood events in Texas
Source: NOAA/NCEI Storm Events Database. Deaths and injuries are those NOAA classifies as direct. Damage is the reporting office's estimate at the time and is not inflation-adjusted. This is a catalogue record, not a forecast.