{"id":41001,"date":"2021-06-02T23:59:29","date_gmt":"2021-06-02T23:59:29","guid":{"rendered":"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/?p=41001"},"modified":"2021-06-04T14:57:36","modified_gmt":"2021-06-04T14:57:36","slug":"above-anvil-cirrus-plumes-in-texas","status":"publish","type":"post","link":"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/archives\/41001","title":{"rendered":"Above-Anvil Cirrus Plumes in Texas"},"content":{"rendered":"

\"GOES-16<\/a>

GOES-16 \u201cRed\u201d Visible (0.64 \u00b5m)<\/em> and \u201cClean\u201d Infrared Window (10.35 \u00b5m)<\/em> images [click to play animation | MP4<\/strong><\/a>]<\/p><\/div>1-minute\u00a0Mesoscale Domain Sector<\/strong><\/a>\u00a0GOES-16\u00a0(GOES-East)<\/em>\u00a0\u201cRed\u201d Visible (0.64 \u00b5m<\/strong><\/a>)\u00a0<\/em>and \u201cClean\u201d Infrared Window (10.35 \u00b5m<\/strong><\/a>) images\u00a0(above)<\/strong><\/em> showed an interesting contrast in the character of Above-Anvil Cirrus Plumes (reference<\/strong><\/a>\u00a0|\u00a0VISIT training<\/strong><\/a>) over central Texas just before sunset on 02 June 2021<\/strong><\/a>. The northernmost AACP was generated by a single brief overshooting top (during the 0031-0041 UTC time period), but produced the most robust “warm” (brighter shades of green)<\/em> plume signature in the Infrared imagery. Other AACP signatures could be seen in the southern portion of that mesoscale convective system, but none of them exhibited such a notable warm infrared signature (in spite of prolonged periods of pulsing overshooting tops).<\/p>\n

\"GOES-16<\/a>

GOES-16 \u201cRed\u201d Visible (0.64 \u00b5m)<\/em> and \u201cClean\u201d Infrared Window (10.35 \u00b5m)<\/em> images at 0034 UTC [click to enlarge]<\/p><\/div>The coldest cloud-top infrared brightness temperature of the brief overshooting top was -71\u00baC at 0034 .UTC (above)<\/strong> <\/em>— soon afterward, the infrared brightness temperatures within the “warm wake” immediately downwind of the overshooting top were generally in the -51\u00baC to -55\u00baC range, highlighted by the brighter green enhancement (below)<\/strong><\/em>.<\/p>\n

\"GOES-16<\/a>

GOES-16 \u201cRed\u201d Visible (0.64 \u00b5m)<\/em> and \u201cClean\u201d Infrared Window (10.35 \u00b5m)<\/em> images at 0050 UTC [click to enlarge]<\/p><\/div>A plot of 00 UTC rawinsonde data from Midland, Texas (below)<\/em><\/strong> indicated that the -71\u00baC overshooting top brightness temperature corresponded to a Most Unstable air parcel ascent of about 1 km beyond its Equilibrium Level. The warming temperature within the lower stratosphere (just above the tropopause \/ equilibrium level) was also apparent.<\/p>\n

\"Plot<\/a>

Plot of 00 UTC rawinsonde data from Midland, Texas [click to enlarge]<\/p><\/div>It should be mentioned that not all Above-Anvil Cirrus Plumes exhibit a warmer<\/strong> signature on Infrared imagery — depending on the ambient temperature profile just above the tropopause \/ equilibrium level, some plumes can appear colder<\/strong> (for example: Nov 2018<\/strong><\/a>, Sep 2019<\/strong><\/a> and May 2020<\/strong><\/a>)<\/p>\n","protected":false},"excerpt":{"rendered":"

1-minute\u00a0Mesoscale Domain Sector\u00a0GOES-16\u00a0(GOES-East)\u00a0\u201cRed\u201d Visible (0.64 \u00b5m)\u00a0and \u201cClean\u201d Infrared Window (10.35 \u00b5m) images\u00a0(above) showed an interesting contrast in the character of Above-Anvil Cirrus Plumes (reference\u00a0|\u00a0VISIT training) over central Texas just before sunset on 02 June 2021. The northernmost AACP was generated by a single brief overshooting top (during the 0031-0041 UTC time period), but produced the […]<\/p>\n","protected":false},"author":18,"featured_media":41003,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[74,3],"tags":[],"class_list":["post-41001","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-goes-16","category-severe-convection"],"acf":[],"_links":{"self":[{"href":"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-json\/wp\/v2\/posts\/41001","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=41001"}],"version-history":[{"count":8,"href":"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-json\/wp\/v2\/posts\/41001\/revisions"}],"predecessor-version":[{"id":41010,"href":"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-json\/wp\/v2\/posts\/41001\/revisions\/41010"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-json\/wp\/v2\/media\/41003"}],"wp:attachment":[{"href":"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-json\/wp\/v2\/media?parent=41001"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-json\/wp\/v2\/categories?post=41001"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-json\/wp\/v2\/tags?post=41001"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}