![\"JMA](\"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/images\/2020\/10\/201030_himawari8_visible_Typhoon_Goni_anim.gif\")
<\/a>JMA Himawari-8 “Red” Visible (0.64 \u00b5m)<\/em> images [click to play animation | MP4<\/strong><\/a>]<\/p><\/div>2.5-minute rapid scan JMA<\/strong><\/a> Himawari-8 “Red” Visible (0.64 \u00b5m) images (above)<\/strong><\/em> showed Category 5 Super Typhoon Goni in the West Pacific Ocean on 30 October 2020. The images revealed a very small “pinhole eye”, surface mesovortices within the eye and a trochoidal motion — all characteristics of a tropical cyclone at\/near its peak intensity (Goni had a satellite-derived estimate of 160 knots at 00 UTC). The trochoidal “wobble” was more evident in a faster animation<\/strong><\/a>.<\/p>\n The corresponding Infrared (10.4 \u00b5m) images (below)<\/strong><\/em> revealed cloud-top infrared brightness temperatures that were frequently in the -80 to -85\u00baC range (shades of violet)<\/em>.<\/p>\n JMA Himawari-8 “Clean” Infrared Window (10.4 \u00b5m)<\/em> images [click to play animation | MP4<\/strong><\/a>]<\/p><\/div>Longwave Infrared (11.2 \u00b5m) images with contours of 00 UTC deep-layer wind shear<\/strong><\/a> from the CIMSS Tropical Cyclones<\/strong><\/a> site (above)<\/strong><\/em> indicated Goni was in an environment of very low shear at that time.<\/p>\n Himawari-8 Longwave Infrared (11.2 \u00b5m)<\/em> images, with contours of 00 UTC deep-layer wind shear [click to enlarge]<\/p><\/div>\n ===== 31 October Update =====<\/strong><\/p>\n JMA Himawari-8 “Clean” Infrared Window (10.4 \u00b5m)<\/em> images [click to play animation | MP4<\/strong><\/a>]<\/p><\/div>Super Typhoon Goni maintained Category 5 intensity for over 24 hours, and actually intensified to 170 knots (JTWC advisory<\/strong><\/a> | ADT<\/strong><\/a> | SATCON<\/strong><\/a>) at 18 UTC on 31 October, just prior to making landfall along Catanduanes Island in the Philippines around 2050 UTC (a closer view of landfall using RealEarth<\/strong><\/a> is available here<\/strong><\/a>).\u00a0At 170 knots, Goni became one of the most intense landfalling tropical cyclones on record.<\/p>\n Note the rapid deterioration of the eye upon landfall — this was likely due to a combination of interaction with the terrain of the island, and increasing deep-layer wind shear (below)<\/strong><\/em>. As it was approaching the Philippines, Goni had been moving over very warm water characterized by high values of Sea Surface Temperature and Ocean Heat Content<\/strong><\/a>.<\/p>\n Himawari-8 Water Vapor images, with contours of deep-layer wind shear [click to enlarge]<\/p><\/div>A DMSP-16 SSMIS Microwave (85 GHz) image at 2032 UTC is shown below.<\/p>\n<\/a><\/a><\/a><\/a>