What happens when Westerlies and easterlies meet?

The westerlies meet easterlies from the polar highs at about 60° N. and S. When Westerlies and easterlies meet, a polar front is formed. The cool polar air meets the warmer mid-latitude air near the 60th parallel, where the warmer air rises over the colder air. This zone is known as the polar front.

Further Reading:

• Types of Wind
• Forces Affecting Velocity And Direction Of Wind