{"id":1094,"date":"2008-09-28T23:59:18","date_gmt":"2008-09-28T23:59:18","guid":{"rendered":"http:\/\/cimss.ssec.wisc.edu\/satellite-blog\/?p=1094"},"modified":"2008-09-30T21:05:41","modified_gmt":"2008-09-30T21:05:41","slug":"hurricane-kyle-the-transition-to-extratropical","status":"publish","type":"post","link":"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/archives\/1094","title":{"rendered":"Hurricane Kyle: the transition to extratropical"},"content":{"rendered":"
\"GOES-12<\/a>

GOES-12 6.5 \u00c2\u00b5m water vapor images<\/p><\/div>\n

GOES-12 6.5 micrometer “water vapor channel” imagery (above)<\/strong><\/em> revealed a pronounced warming\/drying signature (darker orange colors)<\/em> as Hurricane Kyle<\/strong><\/a> was beginning the transition to an extratropical system on 28 September 2008<\/strong><\/a>. GOES-12 water vapor brightness temperatures were as warm as 268\u00c2\u00ba K (-5.15\u00c2\u00ba C) at 16:45 and 17:02 UTC — and the rapid trend of warming\/drying suggested that strong subsidence was occurring in that region.<\/p>\n

A comparison of the 4-km resolution GOES-12 and the 1-km resolution MODIS water vapor channel data (below)<\/strong><\/em> yielded similar brightness temperature values within the core of the warm\/dry region (-5.1\u00c2\u00ba C on MODIS, -7.5\u00c2\u00ba C on GOES-12)<\/em>.<\/p>\n

\"GOES-12<\/a>

GOES-12 6.5 \u00c2\u00b5m and MODIS 6.7 \u00c2\u00b5m water vapor images<\/p><\/div>\n

Curiously, the GOES-12 sounder total column ozone product (animation<\/a>)<\/strong><\/em> did not<\/em> exhibit a high ozone feature co-located with the warm\/dry pocket seen on the water vapor imagery (below)<\/strong><\/em> — if this dry air were due to a stratospheric intrusion or a tropopause fold, ozone values would normally increase to the 350-400 Dobson Unit range (green to red colors)<\/em>.<\/p>\n

\"AWIPS<\/a>

AWIPS images of GOES-12 water vapor and total column ozone<\/p><\/div>\n","protected":false},"excerpt":{"rendered":"

GOES-12 6.5 micrometer “water vapor channel” imagery (above) revealed a pronounced warming\/drying signature (darker orange colors) as Hurricane Kyle was beginning the transition to an extratropical system on 28 September 2008. GOES-12 water vapor brightness temperatures were as warm as 268\u00c2\u00ba K (-5.15\u00c2\u00ba C) at 16:45 and 17:02 UTC — and the rapid trend of […]<\/p>\n","protected":false},"author":18,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[15,19,12,2],"tags":[],"class_list":["post-1094","post","type-post","status-publish","format-standard","hentry","category-goes-sounder","category-goes-12","category-modis","category-tropical-cyclones"],"acf":[],"_links":{"self":[{"href":"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-json\/wp\/v2\/posts\/1094","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=1094"}],"version-history":[{"count":6,"href":"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-json\/wp\/v2\/posts\/1094\/revisions"}],"predecessor-version":[{"id":1100,"href":"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-json\/wp\/v2\/posts\/1094\/revisions\/1100"}],"wp:attachment":[{"href":"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-json\/wp\/v2\/media?parent=1094"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-json\/wp\/v2\/categories?post=1094"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-json\/wp\/v2\/tags?post=1094"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}