The jet stream is a fast-flowing, narrow current of air found in the Earth's atmosphere, forming high-altitude rivers of wind. These currents are largely driven by large-scale temperature gradients and differences in atmospheric pressure, manifesting in distinct polar and subtropical belts. These atmospheric flows play a crucial role in global meteorology, acting as boundaries that steer major weather systems and fronts across continents. By transporting immense amounts of energy and moisture, the jet stream significantly influences regional climate patterns, thereby impacting weather variability and storm tracks across vast geographical areas.