What Happens When Two Hurricanes Collide?

It’s a Fujiwara folks!

Grant Piper
4 min readAug 22, 2020
Courtesy of the National Hurricane Center

Because 2020 is, you know, 2020, there is the possibility of two hurricanes hitting the same spot after riding through the Gulf of Mexico mere hours apart. This begs the question, what happens when two hurricanes collide?

If this sounds nightmarish, it is not as bad as you think and it has happened before, though the occurrence is extremely rare.

Tropical Storm Laura and Tropical Storm Marco have the possibility of interacting with each other in a phenomena known as the Fujiwara Effect.

The Fujiwara Effect

Example of two closed systems approaching each other in the Pacific (Public Domain)

Sakuhei Fujiwhara was a Japanese meteorologist who lived at the turn of the 20th century. He was one of the first people to put forth the idea that two cyclones could potentially collide and interact with one another and came up with a credible scientific model as to what that event might look like.

It is important to note that Fujiwhara lived and worked in a time long before satellites. He first put forward the idea of two cyclones interacting and merging in a paper he wrote in 1921. He had no access to the suite of advanced…

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Grant Piper
Grant Piper

Written by Grant Piper

Professional writer. Amateur historian. Husband, father, Christian.

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