A large percentage of people still unaccounted for were probably visiting the area, Kerr County Judge Rob Kelly said.

For the third straight day, thunderstorms have posed what meteorologists call life-threatening conditions in the Hill Country, where flooding earlier this month killed at least 131 people.

With more than 170 still missing, communities must reconcile how to pick up the pieces around a waterway that remains both a wellspring and a looming menace.

Plans to develop a flood monitoring system in the Texas county hit hardest by deadly floods were scheduled to begin only a few weeks later.

Camp Mystic's executive director began evacuating campers approximately 45 minutes after the National Weather Service issued a "life-threatening flash flooding" alert.

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 conditions are life threatening and could flood creeks, streams, streets, highways, underpasses and "urban areas," according to the NWS.

As residents recover and rebuild, Grape Juice in downtown Kerrville is serving as a hub for people needing meals, supplies and other necessities.