Plans to develop a flood monitoring system in the Texas county hit hardest by deadly floods were scheduled to begin only a few weeks later.

At least 120 people are dead and 173 are missing in central Texas after the Guadalupe River swelled early Friday, causing destructive flash flooding throughout Kerr County.Now, new before-and-after satellite images of several sites throughout Kerry County show the devastation caused by the floods as crews embark on a seventh day of search and rescue efforts.

Flash floods surged through in the middle of the night, but many local officials appeared unaware of the unfolding catastrophe, initially leaving people near the river on their own.

A retired nurse, her son and a family friend say they were lucky to survive last week's flash floods in Texas that killed more than 100 people, including many summer campers.

Factors such as elevation and soil consistency are vastly different in Florida than in Texas, according to meteorologists.

With more than 170 still missing, communities must reconcile how to pick up the pieces around a waterway that remains both a wellspring and a looming menace.

Eyewitness accounts reveal terrifying moments when a massive flood struck Hunt, Texas on July Fourth, killing more than 100 people.