Tropical Storm Keli, meanwhile, was located about 795 miles southeast of Honolulu with maximum sustained winds near 40 mph and higher gusts. Keli was moving west at 15 mph and is expected to maintain that general motion over the next couple of days.

Two tracker maps from the National Hurricane Center (NHC) and Central Pacific Hurricane Center show how the paths of Hurricane Ione and Tropical Storm Keli are forming. Hurricane Iona formed on Monday after undergoing rapid intensification. Shortly after Iona formed, Tropical Storm Keli also developed.

Hurricane Iona was expected to move westward and does not pose any land threat to the Hawaiian Islands, forecasters said.