The National Hurricane Center is tracking two weather systems in the Atlantic Ocean – neither of which pose immediate risk to the United States – while Henriette and Ivo wax and wane in the Pacific Ocean.

The storm is forecast to weaken soon before undergoing a period of restrengthening and potentially becoming a hurricane on Monday.

Tropical Storms Henriette and Ivo are expected to develop into hurricanes in the Pacific, the National Hurricane Center says.