Super Typhoon Atsani in the West Pacific Ocean

August 19th, 2015 |

Himawari-8 infrared (10.4 µm) imagery [click to play MP4 animation]

Himawari-8 infrared (10.4 µm) imagery [click to play MP4 animation]

Super Typhoon Atsani reached Category 5 intensity early in the day on 19 August 2015; the storm displayed a nearly annular eyewall signature during much of the day on Himawari-8 infrared (10.4 µm) images (above; click image to play MP4 movie file). A large (64 Mbyte) animated GIF is available here. Evidence of low-altitude mesovortices within the eye can be seen in the 2-km resolution infrared images.

A comparison of DMSP SSMIS microwave (85 GHz) and MSAT-2 infrared (10.8 µm) images around 20 UTC is shown below (courtesy of the CIMSS Tropical Cyclones site).

DMSP SSMIS microwave (85 GHz) image and MTSAT-2 infrared (10.8 µm) image [click to enlarge]

DMSP SSMIS microwave (85 GHz) image and MTSAT-2 infrared (10.8 µm) image [click to enlarge]

On the topic of eye mesovortices, a more detailed view of these features could be seen on daylight 0.64 µm visible images (below; click image to play MP4 animation). A large (28 Mbyte) animated GIF is available here.

Himawari-8 visible (0.64 um) images [click to play MP4 animation]

Himawari-8 visible (0.64 um) images [click to play MP4 animation]

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