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.⛈️

Heavy rain and life-threatening flash flooding hammered the Texas Hill Country early Sunday, prompting a flash flood emergency and urgent warnings across several central Texas counties.

Federal forecasters issued their first flood warning at 1:14 a.m. on July 4. Local officials haven’t shed light on when they saw the warnings or whether they saw them in time to take action.

The threat of heavy rain is “slight” for this weekend, but with the ground fully saturated in Kerr County, even small amounts of rainfall could cause flooding.

A small Texas town that recorded no deaths in last weekend’s flood disaster had recently upgraded its emergency alert system — the kind of setup state, county and federal officials

In the last nine years, federal funding for a system has been denied to the county as it contends with a tax base hostile to government overspending.

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.

Since 2016, the topic of a "flood warning system" for Kerr County has come up at 20 different county commissioners' meetings, according to minutes. The idea for a system was first introduced by Kerr County Commissioner Thomas Moser and Emergency Management Coordinator Dub Thomas in March 2016.

Crews are using construction equipment to clear vehicles, trees and homes in a race to locate more than 170 people still missing since Friday’s devastating flood.

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