What in the World Winds

Learn about wind!

General Info

Wind is the movement of air caused by differences in air pressure

Differences in air pressure are caused by the uneven of Earth

Info on local winds

Generally move short distances and can blow in any direction

Caused by geographic features that produce temperature differences


  • High pressure is created over the ocean during the day and low pressure over land due to uneven heating

  • Air moves from the ocean to the land creating a sea breeze LAND BREEZES

      • Low pressure occurs over the ocean during the night and high pressure over land due to the uneven heating of earth

      • Air moves from the land to the ocean creating a land breeze


Global Winds

The combination of pressure belts and the Coriolis Effect cause global winds

These are Polar easterlies, Prevailing westerlies, and trade winds

All wind is caused by the uneven heating of Earth's surface, which sets convection currents in motion. Convection currents on a large scale cause global winds.


•Located along the equator where no winds blow because the warm rising air creates and area of low pressure

Trade Winds, Prevailing Westerlies, Polar Easterlies

Trade winds

  • Winds that blow from 30° almost the equator

  • Called the trade winds because of their use by early sailors

Polar Easterlies

•Wind belts that extend from the poles to 60° latitude

•Formed from cold sinking air moving from the poles creating cold temperatures

Prevailing Westerlies

•Wind belts found between 30° and 60° latitude
•Flow towards the poles from carrying moist air over the United States