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.

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).