Officials said more than 850 people had been rescued, including some clinging to trees, after a sudden storm dumped more than a foot of rain in an area around the Guadalupe River., Live Updates: Search and rescue efforts underway after 27 killed in Texas flooding Officials in Central Texas say they don't have an accurate count of the number of people missing after , Multiple deaths have been reported in Texas after heavy rain caused flash flooding, while search teams used boats to conduct rescues Friday as fast-moving water threatened riverfront communities , Massive rescue efforts continue in Texas after devastating flash floods killed at least 32 people and has left 27 children from an all-girls Christian camp unaccounted for. NBC News' Ryan Chandler , Downpours overnight stranded drivers and sparked water rescues in western Texas. The deadly flooding has forced hundreds to evacuate. Manuel Bojorquez reports from Richmond, outside Houston,, .