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Geography

Why the Jet Stream Meanders and Drives Mid-Latitude Weather

Quick fact

The jet stream can blow at speeds over 300 km/h (about 185 mph), and its meanders can shift storm tracks by thousands of kilometers.

Why this is interesting

Have you ever noticed how a summer heatwave can suddenly turn into a week of rain? The culprit is a river of wind high above your head—and it can bend and wiggle in ways that steer your weather.