National Weather Service/Business Insider Hurricane Lane, which is approaching Hawaii, has been upgraded to a category-5 storm — the highest possible. Hurricane warning are in place across many of the islands, with the National Weather Service urging that "preparations to protect life and property should be rushed to completion." It is likely to make landfall this week, which is rare for the islands. The Department of Emergency Management has warned of flash flooding, stating it is "a VERY DANGEROUS SITUATION." "Failure to adequately shelter may result in serious injury or loss of life," the National Weather Service said. A category-5 hurricane with winds of up to 160mph (257 kmph) is barrelling towards Hawaii, prompting emergency services to issue urgent warnings for people to protect themselves. Authorities say devastating flooding could accompany Hurricane Lane making landfall, and have warned residents to prepare for potential evacuations.See the rest of the story at Business InsiderNOW WATCH: How LeBron James makes and spends his millionsSee Also:Watch Ariana Grande sing 'Natural Woman' in an emotional tribute to Aretha Franklin hours after she diedA Brazilian plastic surgeon named 'Dr Bumbum' has been charged with murder after his patient died after his butt enlargement injectionA woman sued an exclusive dating agency for $16,600 because it didn't have enough men — and just won her case