HONOLULU \u2014 Hawaii's Big Island was threatened Saturday with its first possible direct hit from a hurricane in 155 years as Hurricane Lala roared in the Pacific Ocean and gusty wind, waves and rain pounded the region.The National Hurricane Center said Lala's maximum sustained winds increased to 75 mph, making it a Category 1 hurricane. The storm's center was forecast to move over or near the island's southern end by the evening, lashing its worst winds at volcanic slopes thousands of feet above sea level.Gov. Josh Green, noting rainfall of 2 inches an hour, said "people should be sheltering in place now."Forecasters said higher elevations on the island, dominated by the towering Mauna Kea volcano, could get as much as 25 inches of rain. That could cause life-threatening mudslides in a mountainous area where people live off the grid in improvised housing.Earlier the governor called it an "enormous storm," capable of destructive flooding and even the possibility of wildfires kicked up by strong winds across the island chain. Electricity was knocked out for nearly 20% of customers on the Big Island, according to poweroutage.us.The island, population 210,000, is Hawaii's largest.Bobby Camara, a 75-year-old lifelong resident, said he planned to "hunker down, cross my fingers, hope the lights don't go out" at a care home just outside Hilo. He said gas stations were busy as people sought fuel for chain saws and vehicles."I think stocking up is part of life over here. ... You learn to be self-reliant," Camara said.Mike Caputo, who lives in Keaau, near the Big Island's east coast, said his power generator was ready and a 10,000-gallon home water tank was full. He said the main concern was flash flooding and fallen trees, especially albizia, a common tree."They're not very sturdy, but they grow extremely large," said Caputo, 50, a local fire captain. "They can make roads impassable."The Big Island was under a hurricane warning, and tropical storm warnings were issued for the islands of Maui, Molokai, Lanai, Kahoolawe, Oahu, Kauai and Niihau.A Category 3 hurricane hit the northeast corner of the Big Island in 1871, according to research by a University of Hawaii atmospheric scientist. The latest forecast has Lala striking "very close to the southern tip of the Big Island," said Vanessa Almanza, a National Weather Service meteorologist in Honolulu.Shelters were opened, events were canceled and ranche