Hi my name is Anna and I want to know during a hurricane or tropical storm; is the wind speed greater at sea level or at altitude? Posted 2008-09-13T14:10:30+00:00 - Updated 2008-09-13T14:10:30+00:00 ...

Dear Tom, Why do wind speeds increase with increasing height above the ground? Jaslin Malkov, Chicago Dear Jaslin, You are correct. Wind speed generally increases as one ascends into the atmosphere.

But, the scientists go even further and suggest that Bolt could beat his own record again with 9.48 seconds as long as the speed of the tailwind is 2 metres per second and the race takes place at ...