Search and rescue operations in Texas continue after heavy rainfall overwhelmed the Guadalupe River, sending floodwaters roaring through the area.

A July Fourth weekend deluge in Texas caused catastrophic flash flooding that has killed more than 80 people. Camp Mystic in Kerr County says Monday morning that it is “grieving the loss” of 27 campers and counselors as the search continues for victims of the disaster.

After deadly floodwaters swept through Central Texas, there are questions about the timeline of weather alerts and possible gaps in the warning system.

Emergency responders continue to search for missing people and local police said efforts have been slowed by "sightseers who are making things worse."

Many warnings from the National Weather Service went out to Kerr County, Texas, but the area wasn't equipped with sirens to wake residents up.