Atlantic Hurricane Season

Bermuda High, El Nino, and La Nina

Bermuda High

During the hurricane season the Bermuda High is what can steer tropical heat into the Eastern and Southern parts of the United States. It tells us whether a tropical storm will visit Florida or the New Orleans, unfortunately the Bermuda High is very unpredictable.

A semi permanent. Subtropical area of high pressure in the North Atlantic Ocean that migrates east and west with varying Central pressure.

El Nino

an abnormal warming of the surface ocean waters in the Eastern tropical pacific. It's also called Southern Oscillation. A pattern of reversing surface air pressure between the Eastern and Western Pacific.

It's characterized by the unusually warm temperatures while La Nina by it's unusually cool temperature. El Nino helps hurricanes develop because of it's warm water temperatures.


La Nina

La Niña is cooler than normal sea-surface temperatures in the central and eastern tropical Pacific Ocean. Conditions for La Niña recur every few years and can persist for as long as two years. La Niña contributes to fewer eastern Pacific hurricanes and more Atlantic hurricanes. La Niña produces easterly winds at upper levels of the atmosphere and westerly winds at lower levels, across the eastern tropical Pacific Ocean and tropical Atlantic.