Mr. Trump said his administration was working with state and local officials and that Department of Homeland Security Secretary Kristi Noem would be arriving in Texas shortly. DHS oversees the Federal Emergency Management Agency.

The storms that battered the Hill Country for the last four days began to lighten up, although isolated pockets of heavy rain were still possible.

As the search in Texas continued Wednesday for more than 160 people believed to be missing days after a destructive wall of water killed over 100 people, the full extent of the catastrophe had yet