CORPUS CHRISTI, Texas (AP) — Harvey spun deeper into Texas and unloaded extraordinary amounts of rain Saturday after the once-fearsome hurricane crashed into vulnerable homes and businesses along the coastline in a blow that killed at least one person and injured up to 14.

Throughout the region between Corpus Christi and Houston, many people feared that toll was only the beginning. Authorities did not know the full scope of damage because weather conditions prevented emergency crews from getting into the hardest-hit places. And they dreaded the destruction that was yet to come from a storm tha...