The death toll from the July Fourth flash flood that ravaged a swath of central Texas Hill Country rose on Tuesday to at least 109, many of them children, as search teams pressed on through mounds of mud-encrusted debris for scores of people still missing.

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.