{"id":28799,"date":"2018-07-05T23:59:46","date_gmt":"2018-07-05T23:59:46","guid":{"rendered":"http:\/\/cimss.ssec.wisc.edu\/satellite-blog\/?p=28799"},"modified":"2018-07-09T03:31:12","modified_gmt":"2018-07-09T03:31:12","slug":"super-typhoon-maria","status":"publish","type":"post","link":"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/archives\/28799","title":{"rendered":"Super Typhoon Maria"},"content":{"rendered":"

\"Himawari-8<\/a>

Himawari-8 “Red” Visible (0.64 \u00b5m, left)<\/em> and “Clean” Infrared Window (10.4 \u00b5m, right)<\/em> images [click to play MP4 animation]<\/p><\/div>Typhoon Maria underwent a period of rapid intensification (ADT<\/strong><\/a> | SATCON<\/strong><\/a>) while it was just northwest of Guam late in the day on 05 July 2018, becoming the first Category 5 Super Typhoon of the 2018 West Pacific season. Rapid-scan Himawari-8 “Red” Visible (0.64 \u00b5m) and “Clean” Infrared Window (10.4 \u00b5m) images (above)<\/strong><\/em> showed Maria during this period of rapid intensification. Cloud-top infrared brightness temperatures reached -80\u00baC (violet enhancement)<\/em> at times in the eyewall of the storm.<\/p>\n

A GPM GMI Microwave (85 GHz) image from the CIMSS Tropical Cyclones<\/strong><\/a> site (below)<\/strong><\/em> showed the pinhole eye of Maria around the time it reached Category 5 intensity. The tropical cyclone was moving over water with high values of Ocean Heat Content<\/strong><\/a> — and was in an environment characterized by low values of Deep-layer Wind Shear<\/strong><\/a>.<\/p>\n

\"GPM<\/a>

GPM GMI Microwave (85 GHz) image [click to enlarge]<\/p><\/div>Mesovortices could be seen within the eye on Himawari-8 Visible imagery (below)<\/strong><\/em>. However, note how the eye became less distinct and increased in diameter toward the end of the animation.<\/p>\n

\"Himawari-8<\/a>

Himawari-8 “Red” Visible (0.64 \u00b5m)<\/em> images [click to play MP4 animation]<\/p><\/div>Shortly after 00 UTC on 06 July, Maria began the process of an eyewall replacement cycle as shown in MIMIC TC<\/strong><\/a> morphed microwave imagery (below)<\/strong><\/em> — and during the following 6-12 hours a decreasing trend in storm intensity was seen (ADT<\/strong><\/a> | SATCON<\/strong><\/a>).<\/p>\n

\"MIMIC<\/a>

MIMIC TC morphed microwave image product [click to play animation]<\/p><\/div>A toggle between Suomi NPP VIIRS Day\/Night Band (0.7 \u00b5m) and Infrared Window (11.45 \u00b5m) images at 1603 UTC on 06 July (below; <\/strong>courtesy of William Straka, CIMSS)<\/strong><\/em> showed Category 4 Typhoon Maria after the eye had filled following the eyewall replacement cycle.<\/p>\n

\"Suomi<\/a>

Suomi NPP VIIRS Day\/Night Band (0.7 \u00b5m)<\/em> and Infrared Window (11.45 \u00b5m)<\/em> images [click to enlarge]<\/p><\/div>\n

===== 08 July Update =====<\/strong><\/p>\n

\"Himawari-8<\/a>

Himawari-8 “Clean” Infrared Window (10.4 \u00b5m)<\/em> images [click to play MP4 animation]<\/p><\/div>Super Typhoon Maria re-intensified to Category 5 intensity at 12 UTC on 08 July (SATCON<\/strong><\/a>) — Himawari-8 “Clean” Infrared Window (10.4 \u00b5m) images (above)<\/strong> <\/em>displayed a large (30 nautical mile wide)<\/em> eye. The subtle signature of mesovortices could be seen rotating within the eye.<\/p>\n

During the preceding daylight hours, Himawari-8 “Red” Visible (0.64 \u00b5m) images (below)<\/strong><\/em> showed the eye mesovortices in better detail.<\/p>\n

\"Himawari-8<\/a>

Himawari-8 “Red” Visible (0.64 \u00b5m)<\/em> images [click to play MP4 animation]<\/p><\/div>However, Maria was again downgraded to a Category 4 storm at 00 UTC on 09 July, as another eyewall replacement cycle took place (DMSP-17 microwave image<\/strong><\/a>) and the storm began to move over water having slightly cooler Sea Surface Temperature<\/strong><\/a> and Ocean Heat Content<\/strong><\/a>. The eye and its mesovortices continued to be prominent in Himawari-8 Visible and Infrared imagery (below)<\/strong><\/em>.<\/p>\n

\"Himawari-8<\/a>

Himawari-8 “Red” Visible (0.64 \u00b5m, left) and “Clean” Infrared Window (10.4 \u00b5m, right) images [click to play MP4 animation]<\/p><\/div>\n","protected":false},"excerpt":{"rendered":"

Typhoon Maria underwent a period of rapid intensification (ADT | SATCON) while it was just northwest of Guam late in the day on 05 July 2018, becoming the first Category 5 Super Typhoon of the 2018 West Pacific season. Rapid-scan Himawari-8 “Red” Visible (0.64 \u00b5m) and “Clean” Infrared Window (10.4 \u00b5m) images (above) showed Maria […]<\/p>\n","protected":false},"author":18,"featured_media":28805,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[62,79,47,25,49,2,48],"tags":[],"class_list":["post-28799","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-himawari-8","category-microwave","category-other-satellites","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\/28799","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=28799"}],"version-history":[{"count":18,"href":"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-json\/wp\/v2\/posts\/28799\/revisions"}],"predecessor-version":[{"id":28839,"href":"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-json\/wp\/v2\/posts\/28799\/revisions\/28839"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-json\/wp\/v2\/media\/28805"}],"wp:attachment":[{"href":"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-json\/wp\/v2\/media?parent=28799"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-json\/wp\/v2\/categories?post=28799"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-json\/wp\/v2\/tags?post=28799"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}