Even in areas that are mapped, like the Camp Mystic site in Kerr County, Texas, that was hit by a deadly flash flood on July 4, 2025, the maps may underestimate their risk because of a reliance on historic data and outdated risk assessments.

Out of all of South Carolina's regions, only one is vulnerable to the type of catastrophic flash river flooding that hit Texas July 4: The Upstate.

Eight-year-old girls at sleep-away camp, families crammed into recreational vehicles, local residents traveling to or from work. These are some of the victims.

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

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

Residents south of the San Saba River in west-central Texas have been ordered to evacuate because of surging waters.

Here's what to know about the deadly flooding, the colossal weather system that drove it and ongoing efforts to identify victims.

U.S. President Donald Trump actually sent 700 U.S. Marine Corps troops to Los Angeles in June 2025 — alongside 4,000 National Guard troops.