Here's what to know about the deadly flooding, the colossal weather system that drove it and ongoing efforts to identify victims.

The catastrophic Central Texas floods have claimed at least 121 lives and left 173 missing, as a report reveals that Kerr County officials were repeatedly denied state funding for an emergency flood warning system.

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

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

Kerr County officials say death toll has risen to 96 due to the Hill Country floods, including 60 adults and 36 children.

A memorial service was held in Kerr County, Texas on Friday to honor the victims and those still missing from flooding that recently struck the region.

The Texas Department of Juvenile Justice said a West Texas juvenile probation officer was among the victims of deadly Kerr County flooding that happened over the July 4 weekend.

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.

Officials in Kerr County, where the majority of the deaths from the July 4 flash floods occurred, have yet to detail what actions they took in the early hours of the disaster.