What are jet streams primarily known for?

Jet streams are primarily known for being powerful belts of wind near the top of the troposphere. These fast-flowing air currents typically flow from west to east and can reach speeds of over 200 miles per hour. Jet streams play a crucial role in shaping weather patterns and influencing the movement of storm systems. They are located at altitudes of about 30,000 feet and can significantly impact the weather experienced at the surface by steering air masses and affecting the development of weather fronts.

The characteristics of jet streams, including their speed and position, have a profound effect on temperature variations and precipitation patterns across different regions, making them a key aspect of atmospheric dynamics. Understanding jet streams is essential for meteorologists when forecasting weather, as these currents help determine where low and high-pressure systems will move.