El Nino is when an a unusual warm ocean temperatures in the equatorial pacific. How it affects hurricanes- the El Nino water temperatures are warm around the ocean water so they are warm to make hurricanes, because hurricanes form only over warm water.
La Nina is when an a usual cold ocean temperatures in the equatorial pacific. how it affects hurricanes- because the water is cold and cant be formed over cold water.
Bermuda High is a high pressure system that sits around the Atlantic ocean during summer. How it affects hurricanes- because when a hurricane is formed over the ocean it is carried through this system. This Bermuda High system moves it around and circulates around in a circle like this.