Over 100 people have died after heavy rain pounded Kerr County, Texas, early Friday, leading to "catastrophic" flooding, the sheriff said.

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.

Officials have reported that 27 campers and counselors from Camp Mystic died in the devastating floods, with five campers and a counselor still missing.

The event was held as search crews and volunteers continued to scour miles along the Guadalupe River for the people still missing.

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.

Rainfall near the areas affected by the devastating Guadalupe River flood has caused a flash flood advisory to be issued.

As of 6:25 p.m. on Wednesday, 96 people — 60 adults and 36 children — are dead after Hill Country flooding, Kerr County officials said.

A "Basic Plan" for emergency response for three Texas counties, including Kerr County, labeled flash flooding as "highly likely" to occur, with a "major" impact on public health and safety, according to an ABC News review of a page on the Kerrville city website.

SAN ANTONIO — Five days after the waters of the Guadalupe River rose and overwhelmed much of Kerr Country on July Fourth, search and recovery efforts continue as the community picks up the pieces of one of the state's worst natural disasters in years.