{"id":18365,"date":"2015-05-14T17:51:45","date_gmt":"2015-05-14T17:51:45","guid":{"rendered":"http:\/\/cimss.ssec.wisc.edu\/satellite-blog\/?p=18365"},"modified":"2015-05-15T06:01:20","modified_gmt":"2015-05-15T06:01:20","slug":"typhoon-dolphin-approaches-guam","status":"publish","type":"post","link":"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/archives\/18365","title":{"rendered":"Typhoon Dolphin approaches Guam"},"content":{"rendered":"
\"Himawari-8<\/a>

Himawari-8 11.22 \u00b5m infrared channel images<\/strong> (click to play animation)<\/p><\/div>\n

The animation above (available here<\/a> as an mp4, and here<\/a> on YouTube) shows 11.22 \u00b5m infrared imagery at 2.5-minute time steps (bottom) and 10-minute time steps (top) from Himawari-8 on 14 May 2015. Category 2 intensity Typhoon Dolphin is approaching Guam, seen at the left edge of both panels in the frame. The 2.5-minute imagery gives a much better indication of the quick rise and decay of overshooting tops (IR brightness temperatures of the storm tops approach -95\u00ba C!). A 10-minute time step cannot fully resolve the evolution of these features. The 2.5-minute time step also better captures the divergent flow (and outward-propagating gravity waves) at the top of the central dense overcast. No eye was yet apparent in the infrared imagery, or on DMSP SSMI 85 GHz microwave imagery<\/a>.<\/p>\n

A similar animation from the previous day, 13 May, is shown here: gif<\/a>, mp4<\/a>, YouTube<\/a>. The better organization of the storm on 14 May is readily apparent.<\/p>\n

How high are the clouds in the Central Dense Overcast (CDO)? Cloud Heights are available from CLAVR-x (Clouds from AVHRR Extended)<\/a>. Data from Geostationary Satellites are processed and are available to download here<\/a>. Values from COMS-1<\/a> and from MTSAT-2<\/a> (displayed with McIDAS-V<\/a>) suggest maximum cloud heights near 55,500 feet.<\/p>\n

The MIMIC Total Precipitable Water (TPW) product, below, showed that Typhoon Dolphin was able to tap rich moisture from the Intertropical Convergence Zone (ITCZ) during the 13-14 May period; TPW values within the tropical cyclone circulation were often in the 60-65 mm or 2.5-2.6 inch range (darker red color enhancement).<\/p>\n

\"MIMIC<\/a>

MIMIC Total Preciptable Water product (click to play animation)<\/p><\/div>\n

Visible Imagery from Himawari-8, just after sunrise on 15 May, show continuous development of short-lived overshooting tops to the east of Guam. More information on the storm is available at the CIMSS Tropical Cyclones site<\/a>, the JMA Tropical Cyclone site<\/a> and the Joint Typhoon Warning Center<\/a>.<\/p>\n

\"Himawari-8<\/a>

Himawari-8 0.6363 \u00b5m visible channel images<\/strong> (click to play animation)<\/p><\/div>\n","protected":false},"excerpt":{"rendered":"

The animation above (available here as an mp4, and here on YouTube) shows 11.22 \u00b5m infrared imagery at 2.5-minute time steps (bottom) and 10-minute time steps (top) from Himawari-8 on 14 May 2015. Category 2 intensity Typhoon Dolphin is approaching Guam, seen at the left edge of both panels in the frame. The 2.5-minute imagery […]<\/p>\n","protected":false},"author":19,"featured_media":18371,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[63,57,56,62,51,20,25,2],"tags":[],"class_list":["post-18365","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-clavrx","category-coms","category-dmsp","category-himawari-8","category-mcidas-v","category-mtsat","category-satellite-winds","category-tropical-cyclones"],"acf":[],"_links":{"self":[{"href":"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-json\/wp\/v2\/posts\/18365","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\/19"}],"replies":[{"embeddable":true,"href":"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-json\/wp\/v2\/comments?post=18365"}],"version-history":[{"count":16,"href":"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-json\/wp\/v2\/posts\/18365\/revisions"}],"predecessor-version":[{"id":18382,"href":"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-json\/wp\/v2\/posts\/18365\/revisions\/18382"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-json\/wp\/v2\/media\/18371"}],"wp:attachment":[{"href":"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-json\/wp\/v2\/media?parent=18365"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-json\/wp\/v2\/categories?post=18365"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-json\/wp\/v2\/tags?post=18365"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}