Two hurricanes interact in the North Atlantic, creating a rare Fujiwhara effect

Two hurricanes, Imelda and Humberto, are interacting in the North Atlantic, a rare phenomenon known as the Fujiwhara effect. Hurricane Imelda is nearing Bermuda as a Category 2 storm, while Humberto, a former Category 4, is now Category 1 and impacting the US East Coast. The Fujiwhara effect, first described over a century ago, can alter storm paths and increase forecast uncertainty. Imelda has already caused destruction in the Caribbean.