Forecasters say Tropical Storm Lala has formed in the Pacific Ocean and a hurricane warning has been issued for the Big Island of Hawaii. The National Hurricane Center says the storm could become a hurricane and bring rain to the Hawaiian Islands starting late Friday as well as high winds and dangerous surf. A hurricane warning is in effect for Hawaii County and a tropical storm watch is in place for Maui County including the islands of Maui, Lanai, Molokai and Kahoolawe. The Miami-based center said Thursday that Lala was 455 miles east-southeast of Hilo, Hawaii, and about 670 miles east-southeast of Honolulu with maximum sustained winds of 60 mph while moving west-northwest.