This pinwheel of anticyclonic clouds was photographed by the 41-B crew over the Pacific Ocean. It may look distinctly less menacing than the storm system shown in slide #26, but the ground winds at the center of this cyclonic system would still be reaching 50 miles an hour. Compare the rotation of this southern hemisphere circular storm with that of the northem hemisphere storm illustrated in slide #26. Circular storms in the northern hemisphere produce spiraling clouds with a clockwise pattern, while southern latitude storms have a counterclockwise cloud motion.

STS 41-B, February 1984. Picture #11-45-2834.

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