Seeing the unseen

If you haven’t found “Wind Map” yet, then read this nice article from the Economist about the visualization of wind speed and direction across the United States, updated hourly and animated. You can zoom in and see what the wind is like where you are. I found this a few months ago, and have repeatedly returned to the website, either to see how tough my bike ride is going to be, or simply to watch the beautiful patterns of an otherwise invisible force.