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.

Well, it could take months for Texas families to experience some form of closure as more than 170 people remain missing, nearly a week after those deadly floodwaters rushed in the Texas Hill Country on July 4 as four months of rain fell in just two days over central Texas.

As the Guadalupe River swelled from a wall of water heading downstream , sirens blared over the tiny river community of Comfort -- a last-ditch warning to get out for those who had missed cellphone al

In what experts call "Flash Flood Alley," the terrain reacts quickly to rainfall steep slopes, rocky ground, and narrow riverbeds leave little time for warning.

The deadly Texas floods have brought the state's approach to land approvals, especially in flood-prone areas, under more scrutiny.

The community of Kerrville, Texas, ravaged by the catastrophic flooding of the Guadalupe River one week ago, was mourning its losses Thursday as rescue teams continue the grueling task of recovering the remains of missing victims.

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.

President Donald Trump will travel to Texas on Friday in the wake of devastating floods that killed at least 120 people, including dozens of children.