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.

Surging tropical activity in the South Pacific Ocean produced a relatively rare occurrence Tuesday: three named tropical cyclones active at the same time: Alfred, Rae and Seru. It’s the first time in four years the feat has happened in the region,