Forecasters say Tropical Storm Ivo has formed off the coast of southern Mexico in the eastern Pacific Ocean and could bring rain and rough surf to some areas.

Tropical Storm Henriette forms in the eastern Pacific Ocean on Monday with 45 mph winds. The National Hurricane Center forecast some additional strengthening in the coming days.

Dexter became a tropical storm on Saturday night. As of late Monday, it was stirring up in the Atlantic Ocean about 345 miles north of Bermuda, the NOAA said. It had maximum sustained winds of 40 mph on Monday and was moving northeast.