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 search is continuing for more than 160 people believed to be missing in Texas days after a destructive wall of water killed over 100 people.

Jonathan McComb was the sole family member to survive a Texas flooding in 2015. Now, he's in Kerrville searching for victims in from the latest flooding.

In hard-hit Kerr County, the death toll has climbed to 95, including 36 children, Kerr County Sheriff Larry Leitha said at a news conference Wednesday.

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.