What happens in this part of the world absolutely affects what happens in another part.

Cirrus clouds are like a blanket. They trap heat in the system. That energy has to escape somehow. If enough energy is trapped and stored in the system, it can escape from the tropical ocean in the form of a hurricane, or in a big rain event like a 'Pineapple Express,' which is a deep flow of moisture in the tropics like we recently had hit the East Coast.