( CNN ) -- A new named tropical storm , Philippe , formed Saturday in the far eastern Atlantic Ocean , the National Hurricane Center reported . Philippe is expected to strengthen over the next 48 hours , according to the forecast . Still , it remains far away from land -- the closest being the Cape Verde Islands off Africa , some 345 miles ( 550 kilometers ) away , with the closest Caribbean islands about 3,000 miles away . As of 5 p.m. Saturday , the storm had maximum sustained winds of 40 mph . It was moving west-northwest at around 14 mph , with the hurricane center predicting a gradual turn more northwest -- a slight slowdown -- on Monday . Tropical storm-force winds , measuring 40 mph or stronger , are blowing about 45 miles from its center . Tropical Storm Ophelia , meanwhile , is slightly more powerful and significantly closer to the Caribbean and the coastal United States . It had sustained winds of 45 mph , with tropical storm-level winds measured up to 260 miles from its middle . It weakened slightly over the course of Saturday , according the hurricane center 's 5 p.m. advisory . Ophelia 's movement is described as `` erratic , '' as it heads in a general west-northwest direction at around 12 mph and is then expected to turn more northwest on Monday . Its eye is now located about 295 miles from the Leeward Islands . As of Saturday evening , there were no coastal watches or warnings in effect for either Ophelia or Philippe .
Philippe is in the far eastern Atlantic and has sustained 40 mph winds . The storm will be moving north at about 10 mph, but it could still make landfall as a hurricane or even stronger tropical storm. Another tropical storm , Ophelia , is closer to the Caribbean and has stronger winds .