Kerr County was hit the hardest, with at least 106 deaths.
Over 130 people are dead from the devastating flooding in the Texas Hill Country.
Kerr County was hit the hardest, with at least 106 deaths, including 36 children. President Donald Trump signed a disaster declaration for the county and the Federal Emergency Management Agency is on the ground there.
Search and rescue operations are ongoing.
Experts say parents shouldn't shy away from discussing the flooding and its impact with older children.
The American Academy of Pediatrics says not talking about a major flood can be "more frightening for children" and can lead kids to avoid asking questions or talking about the event and their reactions.
Click here for tips for parents on how to start a conversation with kids.
In July 1987, an eerily similar flood struck campers along the Guadalupe River.
In the early morning of July 17, 1987, between 5 and 10 inches of rain fell across the upper Guadalupe River basin, according to the National Weather Service, triggering a massive surge of water that traveled down the Guadalupe River through Ingram, Hunt -- near Camp Mystic -- Kerrville and eventually Comfort.
Evacuating campers and staff from the Pot O’ Gold Christian Camp were trapped and eventually swept away by overflowing floodwaters from the Guadalupe River. Ten campers were killed and 33 people were injured, according to the National Weather Service.
-ABC News’ Julia Jacobo
State emergency personnel are aiding local search and rescue operations "around the clock" as they search for potential survivors in Texas, Gov. Greg Abbott said.
Several areas in central Texas and the Hill Country are still under "a threat of heavy rain with the potential to cause flooding," Abbott said in a statement late Monday.
"Texans are urged to remain weather aware, heed the guidance of local officials, and regularly monitor weather forecasts," he said.
He added, "Texas will remain engaged until every missing person is found and every Texan recovers from this disaster."
Some 20 state agencies have deployed about 1,750 personnel and more than 975 vehicles and pieces of equipment to aid in the search and rescue, according to the governor's office.
Country musician Pat Green said his family "suffered a heartbreaking and deeply personal loss" during the flooding in Central Texas.
His wife, Kori Green, shared on social media that Pat Green’s brother John, his wife, Julia, and their two children remain missing after the Kerrville flood over the weekend.
"We are heartbroken and anxiously waiting for all of them to be found," she wrote.
-ABC News' Olivia Osteen and Peter Charalambous
