The next tropical storm in the Atlantic basin could form later this week as thunderstorms brew in the Caribbean.

A wave of disorganized shower activity near the central Caribbean is expected to move into the central or western Caribbean Sea by the end of the week or the start of the weekend. Slow development into a tropical system will be possible as it travels into a more favorable environment. If the system becomes a tropical storm it will be named Sara.

A disturbance in the North Atlantic and Caribbean Sea could form over the southwester Caribbean Sea, The National Hurricane Center said.