A new report has found that officials in Kerr County, Texas, did not use technology that would have sent lifesaving emergency messages to everyone in the vicinity of the Guadalupe River as it flood 4.

On the night the deadly floodwaters raged down the Guadalupe River in Texas, the National Weather Service forecast office in Austin/San Antonio was missing a key member of its team: the warning coordination meteorologist,

"It's not community to community. It's a national system," Sen. Maria Cantwell said on "Face the Nation with Margaret Brennan."

Experts said warnings issued in the run-up to this weekend’s flooding were as timely and accurate as possible, but questions about whether the alerts reached people most at risk remain.

NWS says Flash Flood Warnings were issued on July 3 and early July 4 in Central Texas, giving more than three hours of warning.

As Trump visits flood victims in Texas, know that the National Weather Service may be a federal agency, but saving lives depends on local resources.

Another dangerous situation was unfolding in central Texas on Sunday morning after heavy rain led to the rapid rise of the Lampasas River, which is now reportedly flowing at a potentially catastrophic three Olympic-sized swimming pools per second.