Texas does not approve or keep copies of emergency plans; camps are required only to show they have plans in place.

Several hundred people gathered at Tivy High School’s stadium in Kerr County, Texas, to mourn the victims of the catastrophic flash floods that hit the region and to honor the many still missing.

Search teams persisted in sifting through debris in Texas Hill Country on Wednesday as hopes of finding more survivors dimmed five days after flash floods tore through the region, killing at least 110...