More flash flooding is forecast for central Texas, where more than 100 lives were claimed by devastating floods last week

The National Weather Service warned that the Guadalupe River could surge to nearly 15 feet—5 feet above flood stage—by Sunday afternoon.

As search and recovery efforts continue following the deadly floods, NWS warns of isolated flash floods due to the possibility of heavy rain this weekend.⛈️

Recordings provided to CBS News showed first responders asking for an emergency alert to be sent, but dispatchers delayed because they needed special authorization.

Texas officials are being questioned about warning systems ahead of the deadly floods. As NBC News' Priscilla Thompson reports, Kerr County doesn't have a county-wide siren warning system in place.

The number of people reported missing in Kerr County, Texas, as a result of last week’s flash floods continues to soar. Authorities say search teams combing through the debris and destruction there are looking for more than 160 people who disappeared in the raging waters.

Over 12,000 volunteers have already assisted in Kerr County, according to the Texas Division of Emergency Management.

A newly surfaced video shows Kerr County commissioners and residents in 2021 delaying over $10 million in federal funds -dismissing it as "Biden money"-that could have been used for critical infrastructure upgrades. The decision is now under fire after the destructive July 4 Texas floods exposed weaknesses in the county's emergency systems.