A plot of the Advanced Dvorak Technique intensity estimate for Cyclone Emeraude in the Indian Ocean (above) shows that the storm rapidly intensified to Category 4 intensity on 17 March 2016.Himawari-8 AHI Visible (0.64 µm) and Infrared Window (10.4 µm) images (below; also available as a large 31-Mbyte animated GIF) revealed the formation... Read More