stairwells to safety and they began this morning evacuating the most critical first including a woman pregnant with twins who had gone in premature labor. the helicopters have been taking the most krill cat patients to a neighboring hospital. one of the hospitals is in pensacola, a three-hour drive. which is why they flying the patients. back in front of the hospital, dr. patel reassuring his wife, her husband awaiting double bypass surgery. there was water every where. we were terrified. reporter: tonight, the hospital telling us they plan to have most of the patients out within 48 hours. good luck with the move. i m glad he s okay. thank you. reporter: all of it as first responders now go through the community knocking on front doors. butch browning is the louisiana state fire marshall.