{"id":19662,"date":"2015-09-30T23:59:45","date_gmt":"2015-09-30T23:59:45","guid":{"rendered":"http:\/\/cimss.ssec.wisc.edu\/satellite-blog\/?p=19662"},"modified":"2015-10-03T21:27:07","modified_gmt":"2015-10-03T21:27:07","slug":"hurricane-joaquin","status":"publish","type":"post","link":"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/archives\/19662","title":{"rendered":"Hurricane Joaquin"},"content":{"rendered":"

\"DMSP-18<\/a>

DMSP-18 SSMIS Microwave (85 GHz) and GOES-13 Infrared (10.7 \u00b5m) images [click to enlarge]<\/p><\/div>Joaquin reached Category 1 hurricane intensity on the morning of 30 September 2015 (NHC advisories<\/strong><\/a>). An eye structure was becoming apparent on a 1259 UTC Microwave (85 GHz) image from the SSMIS instrument on the DMSP-18 satellite (above)<\/strong><\/em>.<\/p>\n

The GOES-13 (GOES-East)<\/em> satellite was placed into Rapid Scan Operations (RSO) mode, providing images as frequently as every 5-7 minutes. Visible (0.63 \u00b5m) images (below; also available as an MP4 movie file<\/a>)<\/strong><\/em> showed a number of convective bursts during the day, with a few overshooting tops.<\/p>\n

\"GOES-13<\/a>

GOES-13 Visible (0.63 \u00b5m) images [click to play animation]<\/p><\/div>GOES-13 Infrared (10.7 \u00b5m) images (below; also available as an MP4 movie file<\/a>)<\/strong><\/em> showed that cloud-top IR brightness temperatures associated with these convective bursts were in the -80\u00ba to -90\u00ba C range (violet colors)<\/em>. An organized eye structure was beginning to appear on the IR images at the end of the day.<\/p>\n

\"GOES-13<\/a>

GOES-13 Infrared (10.7 \u00b5m) images [click to play animation]<\/p><\/div>\n

===== 01 October Update =====<\/strong><\/p>\n

The ASCAT Scatterometer on board METOP-A sampled the eastern half of Joaquin shortly after 0230 UTC on 1 October, as shown below. Hurricane-force winds were observed 20-30 miles away from the storm center; tropical storm-force winds extended about twice as far out.<\/p>\n

\"GOES-13<\/a>

GOES-13 Infrared (10.7 \u00b5m) images and METOP-A ASCAT Scatterometer winds, 0230 UTC on 1 October; the NHC Forecast track for Joaquin is indicated [click to enlarge]<\/p><\/div>Joaquin intensified into a Category 4 hurricane late in the day on 01 October (ADT intensity plot<\/strong><\/a>) as the storm slowly moved of the warm sea surface temperature<\/strong><\/a> and high ocean heat content<\/strong><\/a> waters in the vicinity of the Bahamas. Joaquin became the first Category 4 hurricane to move though the Bahamas in October since 1866 (Capitol Weather Gang blog<\/strong><\/a>).\u00a0 A fairly persistent but rather ragged-appearing eye was seen on GOES-13 Infrared (10.7 \u00b5m) images (below; also available as an MP4 movie file<\/a>)<\/strong><\/em>. Once again, the well-defined eye structure was more evident on DMSP SSMIS microwave imagery<\/strong><\/a>.<\/p>\n

\"GOES-13<\/a>

GOES-13 Infrared (10.7 \u00b5m) images [click to play animation]<\/p><\/div>GOES-13 Visible (0.63 \u00b5m) images (below; also available as an MP4 movie file<\/a>)<\/strong><\/em> showed a continuation of the development of convective bursts with overshooting tops in the eyewall region of the hurricane.<\/p>\n

\"GOES-13<\/a>

GOES-13 Visible (0.63 \u00b5m) images [click to play animation]<\/p><\/div>\n","protected":false},"excerpt":{"rendered":"

Joaquin reached Category 1 hurricane intensity on the morning of 30 September 2015 (NHC advisories). An eye structure was becoming apparent on a 1259 UTC Microwave (85 GHz) image from the SSMIS instrument on the DMSP-18 satellite (above). The GOES-13 (GOES-East) satellite was placed into Rapid Scan Operations (RSO) mode, providing images as frequently as […]<\/p>\n","protected":false},"author":18,"featured_media":19667,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[56,11,58,25,2],"tags":[],"class_list":["post-19662","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-dmsp","category-goes-13","category-metop","category-satellite-winds","category-tropical-cyclones"],"acf":[],"_links":{"self":[{"href":"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-json\/wp\/v2\/posts\/19662","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=19662"}],"version-history":[{"count":12,"href":"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-json\/wp\/v2\/posts\/19662\/revisions"}],"predecessor-version":[{"id":19690,"href":"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-json\/wp\/v2\/posts\/19662\/revisions\/19690"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-json\/wp\/v2\/media\/19667"}],"wp:attachment":[{"href":"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-json\/wp\/v2\/media?parent=19662"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-json\/wp\/v2\/categories?post=19662"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-json\/wp\/v2\/tags?post=19662"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}