Camp Mystic was overrun by flash flooding that started on Independence Day. Rapidly rising waters ripped through the century-old all-girls Christian summer camp, killing at least 27 people. Others are still missing.

Here’s what to know about the deadly flooding, the colossal weather system that drove it in and around Kerr County, Texas, and ongoing efforts to identify victims.

The night that devastating flooding obliterated parts of Texas, Stuart Gross said he was awakened by nearby screams as raging waters swept up homes and citizens. The Ingram, Texas, resident told ABC News he has lived near the Guadalupe River for more than 45 years and has seen other floods,