This NSCAT image shows ocean surface wind speeds and directions over the Pacific Ocean on September 21, 1996. The white arrows show the direction of the wind. Typhoons Violet and Tom are the yellow-orange spiral features in the western Pacific (upper left), near Japan. (Typhoon Tom is in the open ocean; typhoon Violet is just south of Japan.) Strong winter storm activity appears as orange patterns in the southern hemisphere.

Credit: NASA-JPL