Tropical Storm Henriette has rapidly strengthened into a hurricane in the central Pacific Ocean with further strengthening expected but poses no threat to land.

Forecasters say Tropical Storm Erin has formed in the eastern tropical Atlantic Ocean as Hurricane Henriette is strengthening in the Pacific Ocean.

Hurricane Henriette was a Category 1 storm on Monday and was well away from Hawaiʻi. The storm had maximum sustained winds of 85 mph and was about 525 miles northwest of Honolulu.