Typhoon Soudelor in the Pacific
The animation above (link) shows two-plus days of 10.35 µm Infrared imagery (from Himawari-8) of Typhoon Soudelor over the western Pacific Ocean. The animation of 2.5-minute interval images is from the Himawari-8 Target Sector that shifts as the Typhoon moves. The animation shows significant strengthening to Category 5 intensity and subsequent weakening as the storm undergoes an eyewall replacement cycle (ERC). That ERC is apparent in the MIMIC morphed microwave imagery, below. In addition, an SST Analysis from the CIMSS Tropical Cyclones site shows the storm traversing an area of relatively cooler Sea Surface Temperatures. Strengthening is expected in the next days as the storm approaches Taiwan.
A visible animation (0.52 µm, 2.5-minute time steps) from Himawari-8, below, (available here as an mp4, or here on YouTube) during the day on 4 August, shows a relatively clear eye with embedded vortices. In addition, tranverse banding at the cirrus level is obvious. Suomi NPP overflew Soudelor during the night on 4 August. The toggle between the VIIRS Day/Night Band visible (0.70 µm) image and the Infrared (11.45 µm) image is shown below (courtesy William Straka, SSEC). The three-quarter full moon supplied ample illumination to yield a very crisp visible image at night.