Geography
How the Jet Stream Steers Storm Tracks Across Mid-Latitudes
Quick fact
The jet stream can reach speeds of 250 miles per hour (400 km/h), making it one of the fastest winds on Earth.
Why this is interesting
Have you ever wondered why a storm seems to follow a path, crossing entire countries? Or why a weather forecast changes so quickly? The answer lies in a ribbon of wind high above our heads.