I've been thinking about this same thing for a while. Because of you I finally found the Beaufort Scale. Thanks, Teach.

I'm getting to like wikipedia. Find all kinds of interesting stuff.
http://en.wikipedia.org/wiki/Beaufort_scale

I like the little pictures on this site.
http://www.stormfax.com/beaufort.htm

Then, of course, there is our buddy NOAA.
http://www.srh.noaa.gov/lix/html/hailwind.html