This is an amazing composite graphic of the 2005 hurricane season, done
by NASA. Don't bother watching it as it loads, it's only interesting when
you replay it at full speed...

http://www.nasa.gov/mpeg/136417main_hurricanes2005_wide_320x240.mpeg

And here is the web page it's from:

http://www.nasa.gov/vision/earth/lookingatearth/2005_hurricane_season.html