The Aviation Weather Digital Data Service has a new version of the Flight
Path Tool that runs as an application instead of an applet.

It's large, readable and instantly interactive. Dial in the time and click
in a selection like wind barbs or temperatures, then select an altitude and
the display reacts. Change an altitude and it changes the display
interactively.

Pretty impressive for government work.

http://adds.aviationweather.gov/fpt_application/

--
Dallas