Emergency crews have suspended their search for victims of catastrophic flooding in central Texas amid new warnings that additional rain will again cause waterways to surge.

For a second straight day, rain forecasts hampered the search Monday for people still missing afterdeadly floods pummeled Texas, as officials made plans to drain reservoirs in the search for victims and lowered the number of people they said remain missing.

The National Weather Service warned that the Guadalupe River could surge to nearly 15 feet—5 feet above flood stage—by Sunday afternoon.