{"id":60048,"date":"2024-06-21T19:31:10","date_gmt":"2024-06-21T19:31:10","guid":{"rendered":"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/?p=60048"},"modified":"2024-06-23T03:24:31","modified_gmt":"2024-06-23T03:24:31","slug":"sheared-tropical-system-approaching-the-coast-of-georgia","status":"publish","type":"post","link":"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/archives\/60048","title":{"rendered":"Sheared Tropical System approaching the coast of Georgia"},"content":{"rendered":"\n<figure class=\"wp-block-video\"><video height=\"856\" style=\"aspect-ratio: 1340 \/ 856;\" width=\"1340\" autoplay controls loop src=\"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-content\/uploads\/sites\/5\/2024\/06\/goeseast_abi_radc_true_color_night_s20240621154618_e20240621190118_f40.mp4\"><\/video><figcaption class=\"wp-element-caption\">CSPP Geosphere True Color Imagery (as an mp4 animation) over the Atlantic Ocean east of Florida and Georgia, 1546-1901 UTC on 21 June 2024<\/figcaption><\/figure>\n\n\n\n<p><a href=\"https:\/\/geosphere.ssec.wisc.edu\/#playing:true;coordinate:-476984,3103383;zoom:6.3;coverage:radc;num_frames:40;\">Geosphere true-color imagery<\/a> over the Atlantic Ocean to the east of Florida and Georgia, above, shows a low-level cyclonic circulation with strong convection to its south.  The appearance of the system suggests strong shear;  an analysis of shear from the SSEC Tropical Weather website, below, shows the northerly shear over the storm that displaces the convection.<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"680\" src=\"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-content\/uploads\/sites\/5\/2024\/06\/ShearValueInvest_1800_21June2024-1024x680.gif\" alt=\"\" class=\"wp-image-60050\" srcset=\"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-content\/uploads\/sites\/5\/2024\/06\/ShearValueInvest_1800_21June2024-1024x680.gif 1024w, https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-content\/uploads\/sites\/5\/2024\/06\/ShearValueInvest_1800_21June2024-300x199.gif 300w, https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-content\/uploads\/sites\/5\/2024\/06\/ShearValueInvest_1800_21June2024-768x510.gif 768w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><figcaption class=\"wp-element-caption\">850-200 mb shear, 1800 UTC on 21 JUne 2024 (Click to enlarge)<\/figcaption><\/figure>\n\n\n<p style=\"text-align: center;\">__________<\/p>\n<div style=\"width: 1725px\" class=\"wp-caption aligncenter\"><a href=\"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/images\/2024\/06\/240621_goes16_visible_Invest_92L_anim.gif\"><img loading=\"lazy\" decoding=\"async\" class=\"size-medium\" src=\"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/images\/2024\/06\/92l_vis-20240621_174526.png\" width=\"1715\" height=\"830\" \/><\/a><p class=\"wp-caption-text\">1-minute GOES-16 \u201cRed\u201d Visible (0.64 \u00b5m) images, from 1400 UTC on 21 June to 0000 UTC on 22 June (courtesy Scott Bachmeier, CIMSS) [click to play animated GIF | <strong><a href=\"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/images\/2024\/06\/240621_goes16_visible_Invest_92L_anim.mp4\">MP4<\/a><\/strong>]<\/p><\/div>\n<p>1-minute\u00a0<a href=\"https:\/\/www.nco.ncep.noaa.gov\/status\/satellite\/\"><strong>Mesoscale Domain Sector<\/strong><\/a>\u00a0GOES-16\u00a0<em>(GOES-East)<\/em>\u00a0\u201cRed\u201d Visible (<a href=\"http:\/\/cimss.ssec.wisc.edu\/goes\/OCLOFactSheetPDFs\/ABIQuickGuide_Band02.pdf\"><strong>0.64 \u00b5m<\/strong><\/a>) images <em><strong>(above)<\/strong><\/em> showed a closer view of the exposed low level circulation center (LLCC) of Invest 92L. A slight amount of trochoidal motion (wobble) was seen as the LLCC moved toward the coast.<\/p>\n<p>1-minute GOES-16 Visible images with plots of 5-minute <a href=\"https:\/\/rammb2.cira.colostate.edu\/trainings\/visit\/training_sessions\/goes_r_derived_motion_vectors\/\"><strong>Derived Motion Winds<\/strong><\/a> <em><strong>(below)<\/strong><\/em> depicted slightly higher wind speeds (30-35 knots, yellow wind barbs) within the northeast quadrant of 92L &#8212; but satellite-derived wind speeds with the circulation of 92L were generally in the 10-25 knot range. Invest 92L passed between <a href=\"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/images\/2024\/06\/240621_41008_pressure_wind.png\"><strong>Buoy 41008<\/strong><\/a> to the north and <a href=\"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/images\/2024\/06\/240621_SAUF1_pressure_wind.png\"><strong>Buoy SAUF1<\/strong><\/a> to the south; on 21 June the highest wind speeds\/gusts at those two buoys were in the 22-29 knot range. 92L eventually moved inland several hours after sunset, near the Georgia\/Florida border &#8212; between Brunswick GA (<a href=\"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/images\/2024\/06\/240621_KSSI_SFCMG.GIF\"><strong>KSSI<\/strong><\/a>) and Jacksonville FL (<a href=\"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/images\/2024\/06\/240621_KCRG_SFCMG.GIF\"><strong>KCRG<\/strong><\/a>). Wind speeds\/gusts remained below 30 knots at those two sites as well.<\/p>\n<div style=\"width: 1725px\" class=\"wp-caption aligncenter\"><a href=\"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/images\/2024\/06\/240621_goes16_visible_derivedMotionWinds_Invest_92L_anim.gif\"><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/images\/2024\/06\/92l_dmw-20240621_174526.png\" alt=\"\" width=\"1715\" height=\"830\" \/><\/a><p class=\"wp-caption-text\">1-minute GOES-16 \u201cRed\u201d Visible (0.64 \u00b5m) images with plots of Derived Motion Winds, from 1500-2330 UTC on 21 June (courtesy Scott Bachmeier, CIMSS) [click to play animated GIF | <a href=\"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/images\/2024\/06\/240621_goes16_visible_derivedMotionWinds_Invest_92L_anim.mp4\"><strong>MP4<\/strong><\/a>]<\/p><\/div>\n<p style=\"text-align: center;\">__________<\/p>\n\n\n<p>GOES-16 Geocolor imagery, overlain with GLM Flash Extent Density fields, below, (<a href=\"https:\/\/www.star.nesdis.noaa.gov\/goes\/sector_band.php?sat=G16&amp;sector=eus&amp;band=EXTENT3&amp;length=48&amp;dim=0\">from this source<\/a>), show meager lightning within the convection to the south of the low-level cyclonic circulation.<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><a href=\"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-content\/uploads\/sites\/5\/2024\/06\/G16_sector_eus_EXTENT3_48fr_20240621-1523.gif\"><img loading=\"lazy\" decoding=\"async\" width=\"1000\" height=\"1000\" src=\"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-content\/uploads\/sites\/5\/2024\/06\/G16_sector_eus_EXTENT3_48fr_20240621-1523.gif\" alt=\"\" class=\"wp-image-60051\"\/><\/a><figcaption class=\"wp-element-caption\">GOES-16 Geocolor and GLM Flash Extent Density, 1521 &#8211; 1911 UTC on 21 June 2024 (Click to enlarge)<\/figcaption><\/figure>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<p>More information on this system is available at the <a href=\"https:\/\/www.nhc.noaa.gov\/\">National Hurricane Center<\/a>, and from the NWS Forecast Offices in <a href=\"https:\/\/www.weather.gov\/jax\">Jacksonville FL<\/a> and in <a href=\"https:\/\/www.weather.gov\/chs\/\">Charleston SC<\/a>.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Geosphere true-color imagery over the Atlantic Ocean to the east of Florida and Georgia, above, shows a low-level cyclonic circulation with strong convection to its south. The appearance of the system suggests strong shear; an analysis of shear from the SSEC Tropical Weather website, below, shows the northerly shear over the storm that displaces the [&hellip;]<\/p>\n","protected":false},"author":19,"featured_media":60052,"comment_status":"closed","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[76,74,25,2],"tags":[],"class_list":["post-60048","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-glm","category-goes-16","category-satellite-winds","category-tropical-cyclones"],"acf":[],"_links":{"self":[{"href":"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-json\/wp\/v2\/posts\/60048","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=60048"}],"version-history":[{"count":10,"href":"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-json\/wp\/v2\/posts\/60048\/revisions"}],"predecessor-version":[{"id":60064,"href":"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-json\/wp\/v2\/posts\/60048\/revisions\/60064"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-json\/wp\/v2\/media\/60052"}],"wp:attachment":[{"href":"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-json\/wp\/v2\/media?parent=60048"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-json\/wp\/v2\/categories?post=60048"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-json\/wp\/v2\/tags?post=60048"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}