What altitude range is the Jet Stream commonly found?

The Jet Stream is typically located at altitudes between 30,000 and 35,000 feet. This region is well above the typical altitudes for commercial air travel, which often occurs between 30,000 and 40,000 feet, making the Jet Stream an essential factor for pilots to consider when planning flight routes. The presence of the Jet Stream at these altitudes is due to the dynamics of atmospheric circulation, which are influenced by factors such as temperature differences between air masses and the Earth's rotation. This altitude range allows the Jet Stream to exert a significant influence on weather patterns and aviation operations by contributing to wind patterns that can either benefit or hinder aircraft performance.