{"id":56658,"date":"2024-01-24T03:59:00","date_gmt":"2024-01-24T03:59:00","guid":{"rendered":"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/?p=56658"},"modified":"2024-01-26T17:22:01","modified_gmt":"2024-01-26T17:22:01","slug":"tropical-storm-seven-in-the-coral-sea","status":"publish","type":"post","link":"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/archives\/56658","title":{"rendered":"Tropical Cyclone Kirrily in the Coral Sea"},"content":{"rendered":"

\"\"<\/a>

2.5-minute JMA Himawari-9 Red Visible (0.64 \u00b5m, top) and Clean Infrared Window (10.4 \u00b5m, bottom) images, from 2102 UTC on 23 January to 0742 UTC on 24 January [click to play animated GIF | MP4<\/strong><\/a>]<\/p><\/div>Target Sector<\/strong><\/a>\u00a0(2.5-minute interval)\u00a0JMA<\/strong><\/a>\u00a0Himawari-9\u00a0AHI<\/strong><\/a>\u00a0Red Visible (0.64 \u00b5m) and Clean Infrared Window (10.4 \u00b5m) images\u00a0(above)<\/strong><\/em> showed Invest 90P as it intensified to become Tropical Cyclone Kirrily over the Coral Sea on 23-24 January 2024. Visible images showed multiple exposed low-level circulation centers, while Infrared images showed that deep convection was mainly developing west of the storm center.<\/p>\n

Himawari-9 Infrared Window (11.2 \u00b5m) images from the\u00a0CIMSS Tropical Cyclones<\/strong><\/a>\u00a0site\u00a0(below)<\/strong><\/em> showed that Tropical Cyclone Kirrily was moving through an environment of low deep-layer wind shear<\/strong><\/a> (in contrast to the high values of shear that were affecting Invest 90P on 20 January<\/strong><\/a>).<\/p>\n

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JMA Himawari-9 Infrared Window (11.2 \u00b5m) images, with contours and streamlines of deep-layer wind shear at 0000 UTC on 24 January [click to enlarge]<\/p><\/div>\n

===== 25 January Update ====<\/strong><\/p>\n

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2.5-minute JMA Himawari-9 Red Visible (0.64 \u00b5m, top) and Clean Infrared Window (10.4 \u00b5m, bottom) images, from 0302 UTC to 1312 UTC on 25 January [click to play animated GIF | MP4<\/strong><\/a>]<\/p><\/div>2.5-minute Himawari-9 Visible and Infrared images (above)<\/strong><\/em> showed Cyclone Kirrily as it approached the coast of Queensland, Australia — making landfall near Townsville (YBTL) around 1200 UTC on 25 January 2024.<\/p>\n

A plot of surface report data from Townsville (below)<\/strong><\/em> depicted a pressure minimum from 1120-1200 UTC (during landfall), with a maximum wind gust of 50 kts at 0942 UTC (prior to landfall).<\/p>\n

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Plot of surface report data from Townsville [click to enlarge]<\/p><\/div>Several hours prior to landfall, the Jason-3 satellite was detecting altimeter Significant Wave Heights (the average of the highest 1\/3rd<\/sup>\u00a0of the wave distribution.) up to 20.34 ft off the coast of Queensland at 0422 UTC (below)<\/strong><\/em>.<\/p>\n

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Jason-3 altimeter Significant Wave Heights at 0421 UTC<\/p><\/div>\n

Around the time of landfall, ASCAT winds from Metop-B and Metop-C (below)<\/strong><\/em> were in the 40-50 knot range near the coast.<\/p>\n

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ASCAT winds from Metop-C at 1125 UTC and Metop-B at 1211 UTC<\/p><\/div>\n

A toggle between daytime (pre-landfall) and nighttime (post-landfall) Suomi-NPP VIIRS Day\/Night Band (0.7 \u00b5m) images is shown below.<\/p>\n

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Suomi-NPP VIIRS Day\/Night Band (0.7 \u00b5m) images, before and after the landfall of Cyclone Kirrily [click to enlarge]<\/p><\/div>\n","protected":false},"excerpt":{"rendered":"

Target Sector\u00a0(2.5-minute interval)\u00a0JMA\u00a0Himawari-9\u00a0AHI\u00a0Red Visible (0.64 \u00b5m) and Clean Infrared Window (10.4 \u00b5m) images\u00a0(above) showed Invest 90P as it intensified to become Tropical Cyclone Kirrily over the Coral Sea on 23-24 January 2024. Visible images showed multiple exposed low-level circulation centers, while Infrared images showed that deep convection was mainly developing west of the storm center. […]<\/p>\n","protected":false},"author":18,"featured_media":56662,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[152,73,58,25,49,2,48],"tags":[],"class_list":["post-56658","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-altimetry","category-himawari-9","category-metop","category-satellite-winds","category-suomi_npp","category-tropical-cyclones","category-viirs"],"acf":[],"_links":{"self":[{"href":"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-json\/wp\/v2\/posts\/56658","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-json\/wp\/v2\/users\/18"}],"replies":[{"embeddable":true,"href":"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-json\/wp\/v2\/comments?post=56658"}],"version-history":[{"count":10,"href":"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-json\/wp\/v2\/posts\/56658\/revisions"}],"predecessor-version":[{"id":56718,"href":"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-json\/wp\/v2\/posts\/56658\/revisions\/56718"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-json\/wp\/v2\/media\/56662"}],"wp:attachment":[{"href":"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-json\/wp\/v2\/media?parent=56658"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-json\/wp\/v2\/categories?post=56658"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-json\/wp\/v2\/tags?post=56658"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}