Additional rainfall of between 2 and 4 inches, rising to 10 inches in some locations, means the National Weather Service is keeping its flood watch in place until 7 p.m. local time for San Antonio, Austin and the devastated Kerr County.

“Difficult to pinpoint exact locations where isolated heavier amounts will occur. An uptick in coverage and intensity of scattered showers and storms is possible overnight near the I-35 corridor and eastern Hill Country, developing west through the day on Monday,” the service said.

More precipitation in combination with the already saturated ground could lead to rapid runoff and make flash flooding more likely.

As ever, the authorities warn people not to drive or walk through flood waters.