Search and rescue teams are still working to find survivors in flood-ravaged areas of Texas Hill Country, including more than 20 children missing from an all-girls camp that sits along the flooded Guadalupe River.

As operations enter their third day, here’s a look back at Saturday’s recovery efforts:

See more pictures from the flooding.

Areas around the Guadalupe River have long been hazardous for flash flooding, owing to the rugged terrain and the river’s non-absorbent limestone bed, a local meteorologist based in Kerrville, Texas, told CNN.

“This is a historically flood-prone region … this is ‘flash flood alley,’ and in the National Weather Service has appropriately so named this region as a flood-prone area for many, many years,” said meteorologist Cary Burgess.

Speaking with CNN’s Brian Abel, Burgess noted how the massive flooding in Texas Hill Country has been especially devastating in Kerrville, with “more fatalities than we’ve ever had before in these flooding events.”

“I know I’ve lost three people I know personally. It’s been a really rough day,” he said.

Much of Kerr County is “very rugged and also rural,” making it easy for people to get trapped by waterways that flow into Hunt, Texas, which is where Camp Mystic roughly is located, Burgess said.

The Guadalupe River is “a very beautiful river and tranquil most of the time” except when heavy rain transforms it into “a beast,” Burgess said, noting the base of the river is limestone, rather than mud, “so it acts like concrete or a street.”

Rain is on track to fall on parts of central Texas throughout the day on Sunday, as rescue teams continue their desperate search for those impacted by deadly flooding over the past two days.

Radar indicates the additional rain will fall north of Kerrville, one of the hardest-hit areas in the Texas Hill Country, but that forecast could shift as the day goes on, CNN Meteorologist Chris Warren reports.

Rainfall totals generally are expected to be between 2 and 4 inches “in the highest amounts – nothing compared to what we saw in the past couple of days,” Warren said.

Texas officials have said any additional rain in already drenched areas could touch off additional flooding.

Reece Zunker, the head coach for the boys soccer team at Tivy High School in Kerrville, Texas, died in this holiday weekend’s devastating flooding, his niece told CNN.

Mackenzey Zunker said her father identified her uncle’s body Saturday evening. The Tivy boys soccer team posted a tribute to Zunker on their Facebook page, mourning “the loss of our leader and inspiration.”

“Coach Reece Zunker was not just a soccer coach, he was a mentor, teacher and a role model for our Kerrville kids,” the team posted.

Paula Zunker, Reece’s wife, also died in the flooding, according to the soccer team’s statement and a post by Reece Zunker’s cousin, Haley Furlough.

The couple’s two children remain unaccounted for, Furlough wrote.

CNN has reached out to Zunker’s family for more information about Paula Zunker and the children.

Central Texas has seen about a 20% increase in the amount of rain falling in the heaviest events since 1970, a trend mirrored across the US and globally, according to Kristina Dahl, vice president for science at Climate Central, a non-profit, independent science organization.

“As our climate warms, the atmosphere can hold more moisture, which makes it more likely to experience extreme rains like this that are occurring in these short periods of time,” Dahl told CNN’s Lynda Kinkade.

“Obviously the loss of life here really indicates how unprepared we are as a nation for disasters of this scale, let alone the scale that’s to come with continued warming of our planet.”

Dahl pointed to the Gulf of Mexico’s unusually warm surface temperatures as a key contributor to the storm’s intensity.

“That is causing this very warm, wet system of air that enables a devastating amount of rain to fall in central Texas,” she noted.

Funding cuts to disaster response and weather services such as the Federal Emergency Management Agency (FEMA) and the National Oceanic and Atmospheric Administration (NOAA) may hinder both immediate response and long-term forecasting capabilities, Dahl said.

“We need these critical people to be keeping us safe 24 hours a day in every one of these offices across the country,” she said.

“Forecasting a storm like this one … Where exactly is the heaviest rain going to fall? How is it going to translate from rain into flooding? These are extremely challenging problems scientifically.”

Rescuers in Central Texas are continuing a desperate search for 27 missing campers and others swept up in violent floods. As of early Sunday, 51 people have died.

Here’s what else to know.

• Dozens of people are facing a parents’ worst nightmare. A total of 27 children are still missing from Camp Mystic, a Christian all-girls camp in Kerr County. The camp is located by the Guadalupe River, which rose more than 20 feet in less than two hours overnight into the July 4 holiday.
• Texas Governor Greg Abbott said the camp was “horrendously ravaged in ways unlike I’ve seen in any natural disaster,” and promised that 24-hour rescue teams would find “every girl who was in those cabins.” The governor has directed all state agencies involved to prioritize lifesaving efforts.
• More than 850 people in Kerr County have been brought to safety so far, according to authorities, with Texas game wardens saying they airlifted 302 people in a search and rescue operation involving 158 off-road vehicles, 37 boats, 10 search and rescue teams, two helicopters, rescue swimmers, and 16 drones.
• President Donald Trump will honor a federal disaster declaration signed by Gov. Abbott, after the president denied some similar requests from earlier this year. Homeland Security Secretary Kristi Noem emphasized the urgent need for resources, coordination, and continued federal support as the search for missing people intensifies. She defended the government response and the National Weather Service.

Texas Governor Greg Abbott said he visited Camp Mystic on Saturday, to see the place “horrendously ravaged in ways unlike I’ve seen in any natural disaster.”

Abbott, on X, described seeing rushing water reach the top of the all-girls camp cabins, calling the sight “shocking.”

At least 50 people are dead from the floods, including 15 children. There are still 27 people missing from Camp Mystic.

“We won’t stop until we find every girl who was in those cabins,” Abbott said.

Earlier in the evening, the governor’s office released a statement declaring Sunday, July 6, a day of prayer for Texas communities affected by the floods.

At least 27 children are reported missing from Camp Mystic, a private Christian summer camp for girls located near the Guadalupe River — which rose more than 20 feet in less than two hours.

The camp, which is nestled in Hunt, an unincorporated community in western Kerr County, Texas, hosts about 750 kids overall.

Early Friday morning, more than 100 game wardens and an aviation group tried to access the camp, but it wasn’t until after midday that they were able to enter the camp and start rescuing children, according to officials.

Camp Mystic, founded in 1926, prides itself as a “wholesome Christian atmosphere” and a haven where girls “develop outstanding personal qualities and self-esteem,” according to its website. The girls at Camp Mystic develop friendships, grow spiritually and strive “be a better person” and to “let Mystic bring out the best in them,” according to the camp.

Daric and Heidi Easton, restaurant owners in downtown Kerrville, Texas, have pivoted to providing food for first responders and individuals affected by catastrophic flooding in the area.

“I think hospitality and service is uniquely equipped to handle situations like this,” Daric Easton told CNN’s Fredricka Whitfield on Saturday. “It’s typically controlled chaos. The difference was, that we were doing this for our community, and not just for a paycheck.”

The couple have used the restaurant’s connections and resources, including a customer’s helicopter, to transport food and supplies to hard-to-reach areas. “We directly loaded food onto the helicopters, that were then flown to Camp Mystic,” Easton said. “So this did come full circle and accomplish the goal of feeding those kids.”

Easton said his own daughter is around the age of the girls missing from that camp. “I can’t imagine what these parents are going through, and I don’t need to. I just need to make sandwiches,” he told CNN

“If I keep making sandwiches, people can still be fed. If responders are fed, then they can save lives,” Easton said.