Himawari-8 infrared imagery (above, at 2.5-minute time steps and available here as an mp4) shows the development of an eye in Typhoon Dolphin shortly after 1400 UTC when the storm was northwest of Guam. With the subsequent arrival of daylight, mesovortices were clearly seen within the eye on 2.5-minute interval rapid scan visible images... Read More
A disorganized subtropical system (Invest Area 90L) located over the southwest Atlantic to the east of Georgia and north of the Bahamas has the potential to become the first named system of the 2015 Atlantic Tropical Season (if named as a subtropical storm, this would be Ana). Visible imagery, above,... Read More
McIDAS-V images of Himawari-8 AHI 0.64 µm visible channel data (above; click image to play animation; images courtesy of William Straka, SSEC) showed the evolution of Category 2 Typhoon Maysak over the West Pacific Ocean on 30 March 2015. A number of large convective bursts can be seen surrounding the... Read More
Cyclone Pam in the South Pacific Ocean was rated at Category 5 intensity by the Joint Typhoon Warning Center at 18 UTC on 12 March 2015. MTSAT-2 10.8 µm IR channel images (above; click image to play animation; also available as an MP4 movie file) showed... Read More
