The Westerlies are winds that blow from west to east over the Northern Atlantic Ocean in the mid-latitudes. These winds play a crucial role in the weather patterns and climate of the North Atlantic. They can drive storms, impact transatlantic shipping and air travel, and influence ocean currents, such as the Gulf Stream.

The Easterlies over the Atlantic Ocean are prevailing winds that blow from east to west in the low latitudes of the region. These winds are part of the trade wind belt and are influenced by the Hadley cell circulation. The Easterlies in this area drive the trade winds. The trade winds greatly affect the weather and ocean currents in the North Atlantic. They are characterised by their consistency and reliability, making them valuable for maritime trade routes historically.

The Westerlies over the Southern Atlantic Ocean are prevailing winds that blow from west to east in the mid-latitudes, known as the Roaring Forties and Furious Fifties. These winds are strong, consistent, and notorious for their high wind speeds and powerful gusts. The Roaring Forties (40-50 degrees latitude) and Furious Fifties (50-60 degrees latitude) are regions where the Westerlies intensify, resulting in challenging conditions for sailors and contributing to the formation of large waves and swells in the Southern Ocean.