Typhoon Sanba formed as a tropical depression over the western Pacific Ocean on September 10, 2012, and strengthened to a typhoon by September 12. On September 13, 2012, the U.S. Navy’s Joint Typhoon Warning Center (JTWC) reported that Sanba had maximum sustained winds of 135 knots (250 km/h) and gusts up to 165 knots (305 km/h). Located roughly 600 nautical miles (1,100 km) south of Kadena Air Base in Japan, the storm was headed for the Korean Peninsula. The Moderate Resolution Imaging Spectroradiometer (MODIS) on NASA’s Aqua satellite captured this natural-color image of Typhoon Sanba on September 13, 2012. Clouds from the typhoon extended over part of the Philippines (image upper left). North is to the right of the image.