Over 100 people have died after heavy rain pounded Kerr County, Texas, early Friday, leading to "catastrophic" flooding, the sheriff said.

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

The death toll from the devastating Texas floods has risen to over 110 people and at least 173 remain missing. Former NOAA Administrator Richard Spinrad joins Ana Cabrera to break down the timeline of the flood alerts and to provide more insight on response.

Young campers and a dad saving his family were among the dozens killed in the historic flash floods that tore through central Texas over the holiday weekend.

The first weather emergency alert sent by the National Weather Service with urgent language instructing people to "seek higher ground now" was sent at 4:03 a.m. local time.