Tropical Storm Iona was about 730 miles south-southwest of Honolulu and was moving to the west at 22 miles per hour. The National Hurricane Center said additional weakening is expected Wednesday, and then it will maintain intensity Thursday as it moves over warmer sea surface temperatures.

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.

Hurricane Iona is one of two major weather systems in the central Pacific Ocean. In its latest advisory, the Miami-based U.S. National Hurricane Center said Iona was about 735 miles (1,180 kilometers) away from Honolulu, with maximum sustained winds near 125 mph (205 kph).