Three tropical cyclones are swirling in the South Pacific

Three tropical cyclones are spinning in the South Pacific, an occurrence that scientists say is unusual. Tropical cyclones Rae, Seru and Alfred are all churning as the region is in the peak of a season that starts in November and ends in April. The storms are called cyclones when they happen in the Southwest Pacific and hurricanes when they form in the North Atlantic, but are essentially the same phenomenon. How unusual is this?