![\"Himawari-8](\"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-content\/uploads\/sites\/5\/2018\/02\/180218_himawari8_visible_infrared_Cyclone_Kelvin_anim.gif\")
<\/a>Himawari-8 Visible (0.64 \u00b5m, left)<\/em> and Infrared Window (10.4 \u00b5m, right)<\/em> images, with hourly surface plots at Broome, Australia [click to play Animated GIF | MP4<\/strong><\/a> also available]<\/p><\/div>Himawari-8 Visible (0.64 \u00b5m) and Infrared Window (10.4 \u00b5m) images (above)<\/strong><\/em> showed Cyclone Kelvin as it made landfall in Western Australia as a Category 1 storm<\/strong><\/a> on 18 February 2018. Kelvin continued to intensify shortly after making landfall, with estimated winds of 80 gusting to 100 knots<\/strong><\/a> — and a distinct eye feature could be seen in the Visible and Infrared imagery (as well as Broome radar data<\/strong><\/a>).<\/p>\n A longer animation of Himawari-8 Infrared Window (10.4 \u00b5m) images (below)<\/strong><\/em> revealed a very large convective burst as Kelvin meandered near the coast early on 17 February — periodic cloud-top infrared brightness temperatures of -90 \u00baC or colder were seen. After making landfall, the eye structure eventually deteriorated by 18 UTC on 18 February.<\/p>\n Himawari-8 Infrared Window (10.4 \u00b5m)<\/em> images, with hourly surface plots [click to play MP4 | Animated GIF<\/strong><\/a> also available]<\/p><\/div>The MIMIC-TC<\/strong><\/a> product (below)<\/strong><\/em> showed the development of Kelvin’s compact eye during the 17 February – 18 February period; the eye was well-defined around the time of landfall (2147 UTC<\/strong><\/a> image on 17 February), and persisted for at least 18 hours (1556 UTC<\/strong><\/a> image on 18 February) until rapidly dissipating by 21 UTC<\/strong><\/a>.<\/p>\n MIMIC-TC morphed microwave imagery [click to enlarge]<\/p><\/div>Himawari-8 Deep Layer Wind Shear<\/strong><\/a> values remained very low — generally 5 knots or less — prior to, during and after the landfall of Kelvin, which also contributed to the slow rate of weakening. In addition, an upward moisture flux from the warm\/wet sandy soil of that region helped Kelvin to intensify after landfall; land surface friction was also small, since that portion of Western Australia is rather flat.<\/p>\n Himawari-8 Water Vapor images, with Deep Layer Wind Shear product [click to enlarge]<\/p><\/div>The eye of Cyclone Kelvin could also be seen in Terra MODIS and Suomi NPP VIIRS True-color Red-Green-Blue (RGB) images, viewed using RealEarth<\/strong><\/a> (below)<\/strong><\/em>. The actual times of the Terra and Suomi NPP satellite overpasses were 0154 UTC and 0452 UTC on 18 February, respectively.<\/p>\n<\/a><\/a><\/a>