The National Weather Service reported that between 20 and 25 inches of rainfall had occurred in areas of South-Central Texas between Monday evening and late Thursday morning.
“Thunderstorms were very slow moving and produced locally heavy rainfall rates of 2-4"/hour that produced flash and river flooding, which led to a flash flood emergency,” the NWS said in an update.
Preliminary measurements show more than 19 inches of rainfall in Kerrville and more than 21 inches in Uvalde. The greatest concentration was around Knippa, Texas, a small community near Uvalde, where more than 26 inches had fallen.