MANILA—Philippine officials and residents of areas that bore the brunt of Typhoon Rai pleaded for food, water, and shelter on Tuesday as damaged roads, flooding, and severed power and communication lines hampered relief efforts. Rai struck last Thursday, the strongest typhoon to hit the archipelago this year, killing nearly 400 people and affecting 1.8 million, displacing 630,000 of them, according to the U.N. Office for the Coordination of Humanitarian Affairs. “Our food supply is running low. Maybe, in a few days, we will totally run out,” said Fely Pedrablanca mayor of Tubajon town on Dinagat Island. The area, facing the Pacific Ocean, was devastated by the typhoon and she said only nine out of more than 2,000 homes in her town were left standing. The coast guard has deployed vessels to help in relief work and in trying to reach areas still cut-off, while the Philippine Red Cross (PRC) planned …