The high-speed air currents in the mid to upper troposphere that travel from West to East are known as jet streams. Jet streams are narrow bands of strong wind that occur at high altitudes in the atmosphere, typically around 7 to 12 kilometers above the Earth's surface.
These jet streams are significant in influencing weather patterns and air travel. They can steer weather systems, such as storms, and affect the movement of air masses. Jet streams are also crucial for aviation, as they can either assist or hinder aircraft depending on the direction of travel.
In summary, the correct term for high-speed air currents in the mid to upper troposphere that travel West to East is "jet streams."
