A rare, ultimately fatal dance is expected to occur this week between two hurricanes in the eastern Pacific Ocean.
This phenomenon known as the Fujiwhara effect occurs when two storms get close enough for their circulations to interact, sending them pinwheeling around a fixed point between them somewhat like a meteorological version of a fidget spinner.
The are currently 8 tropical cyclones in the Pacific Ocean. And at least two of them are going to experience a very rare weather phenomenon: Hurricane cannibalism.
— Jonathan Erdman (@wxjerdman) July 25, 2017
As shown in the above and following videos, hurricanes can be prone to cannibalism, and the intensifying typhoon Noru in the Northwest Pacific will force another, weaker tropical weather system Kulap to twirl around its circulation before swallowing it almost totally in a rare weather phenomenon called the Fujiwhara effect.
What’s even more remarkable is that at virtually the same time Hurricanes Hilary and Irwin could also undergo a the same rare Fujiwhara effect:
The dance of Noru and Kulap is especially notable since the former is shaping up to be 2017’s first typhoon.
— Philip Klotzbach (@philklotzbach) July 23, 2017
TWO Fujiwhara interactions taking place in the same ocean at the same time is almost unheard of.