4. Hurricanes
The Bermuda Triangle stares down both barrels of Hurricane Alley each year. It's rather easy to avoid one at sea, since any able seafarer will pay close attention to weather reports of it and have a week or more of prior warning to get out of the area.
By-product of a hurricane is a microburst, a sudden downdraft caused by the storm's rotation sucking air down from high altitude.
When this air reaches the surface of the ground or water, it spreads outward at speeds over 170 mph, regardless of the Hurricane's category strength, more than sufficient to snap full-grown oak trees, or flip over any ship in the world. Airplanes are at risk of being forced into a stall and nosedive.