A vortex storm that occurs over the tropical ocean. In a more specific sense, it is a stage in hurricane development where the intensity is slightly less than a hurricane. Sustained wind speeds in a tropical storm are 39 mph or greater.
An organized cyclone in the tropics with maximum sustained winds between 39 and 73 mph. Once tropical storm status has been reached, it is given a name.
Term used in the northern hemisphere for a tropical cyclone.