‘Fujiwhara effect,’ a rare weather event marked by dancing cyclones, expected this week – AOL Weather

The dance of Noru and Kulap is especially notable since the former is shaping up to be 2017’s first typhoon. Through July 19, there have been four tropical storms this year in the Pacific Ocean, but zero typhoons.

Source: ‘Fujiwhara effect,’ a rare weather event marked by dancing cyclones, expected this week – AOL Weather