Super-Typhoon Choi-wan had a symmetrical shape, a trait of a strong, well-organized cyclone, when this photo-like image was taken on September 16, 2009.
A little over 1,000 kilometers separated the center of Tropical Storm Parma from the center of Typhoon Melor on October 6, when the this composite image was taken.
Though Typhoon Choi-wan maintains its tightly wound symmetric shape in this photo-like image from September 18, 2009, the striking clear eye of previous days is gone.