Why does weather change so quickly sometimes?
Weather's Fast Lane
Why does weather change so quickly sometimes?
You wake up to blue skies, head out in a T-shirt, and by lunchtime rain is hammering down and you're soaked. What just happened? Weather isn't a slow-moving story — it's a collision sport, and sometimes the collisions happen right over your head.
Weather lives in the lowest layer of the atmosphere, a thin shell of air wrapped around Earth like the fuzz on a peach. That fuzz is only about 10 kilometers thick, and everything — clouds, wind, storms, sunshine — happens in that narrow space. When things move in a layer that thin, they move fast.
