I watched a great video a few days ago on TED.com. The speaker is Camille Seaman, a storm chaser and photographer from New York. Not only are the photos amazing, I think the video is great for practicing weather vocabulary. I posted the video with a PDF listening guide on my blog (http://goo.gl/5TyOdz).
Can you find any other great presentations on TED.com? Which is your favorite?