{"id":60113,"date":"2024-06-28T15:38:59","date_gmt":"2024-06-28T15:38:59","guid":{"rendered":"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/?p=60113"},"modified":"2024-06-28T15:38:59","modified_gmt":"2024-06-28T15:38:59","slug":"sun-glint-and-light-winds-to-the-west-of-invest-95l-in-the-tropical-atlantic","status":"publish","type":"post","link":"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/archives\/60113","title":{"rendered":"Sun glint and light winds to the west of Invest 95L in the tropical Atlantic"},"content":{"rendered":"\n<figure class=\"wp-block-video\"><video height=\"856\" style=\"aspect-ratio: 1340 \/ 856;\" width=\"1340\" controls loop src=\"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-content\/uploads\/sites\/5\/2024\/06\/goeseast_abi_radf_true_color_night_s20240628120021_e20240628135021_f12.mp4\"><\/video><figcaption class=\"wp-element-caption\">True Color imagery over the tropical Atlantic, 1200-1350 UTC on 28 June 2024<\/figcaption><\/figure>\n\n\n\n<p>CSPP Geosphere imagery above (<a href=\"https:\/\/geosphere.ssec.wisc.edu\/#playing:true;coordinate:2430196,902377;zoom:4.2;product:%5B%7B%22n%22:%22true_color_night%22,%22a%22:1%7D%5D;map_grid:on;\">direct link<\/a>) shows an area of sun glint over the tropical Atlantic. Embedded within the brighter areas of sun glint is a dark path centered near 7<sup>o<\/sup>N, 52<sup>o<\/sup>W over the ocean to the northeast of <a href=\"https:\/\/en.wikipedia.org\/wiki\/French_Guiana#\/media\/File:French_Guiana_in_France_2016.svg\">French Guiana<\/a>. Long-time readers of this blog will no doubt recognize this feature as an area with very light winds (<a href=\"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/?s=glint\">link<\/a>). Indeed, Advanced Scatterometer (ASCAT) winds from MetopC (<a href=\"https:\/\/manati.star.nesdis.noaa.gov\/datasets\/ASCATBData.php\">source<\/a>), below, from 0121 UTC on 28 June, show light winds in the vicinity.<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"740\" height=\"650\" src=\"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-content\/uploads\/sites\/5\/2024\/06\/ASCAT_MetopC_0115UTC_28June024.png\" alt=\"\" class=\"wp-image-60115\" srcset=\"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-content\/uploads\/sites\/5\/2024\/06\/ASCAT_MetopC_0115UTC_28June024.png 740w, https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-content\/uploads\/sites\/5\/2024\/06\/ASCAT_MetopC_0115UTC_28June024-300x264.png 300w\" sizes=\"auto, (max-width: 740px) 100vw, 740px\" \/><figcaption class=\"wp-element-caption\">ASCAT winds from MetopC, 0121 UTC on 28 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>Your eye might also be drawn to the circulation in the animation above that is the <a href=\"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-content\/uploads\/sites\/5\/2024\/06\/NHC_two_atl_2d_28June2024.png\">current invest 95L<\/a> in the tropical Atlantic. In what kind of environment is that system developing? What satellite data can be used to describe this system?   The Saharan Air Layer analysis, below (<a href=\"https:\/\/tropic.ssec.wisc.edu\/real-time\/sal\/\">source<\/a>), shows the storm south of an extensive <a href=\"https:\/\/tropic.ssec.wisc.edu\/misc\/sal\/info.html\">SAL<\/a> region. A water vapor image (sensing the mid-troposphere) at 1200 UTC (<a href=\"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-content\/uploads\/sites\/5\/2024\/06\/G16LLWV_1200UTC_28June2024.jpg\">link<\/a>) also shows extensive dry air surrounding the system.<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><a href=\"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-content\/uploads\/sites\/5\/2024\/06\/G16SALAnalysis_1200UTC_28June2024.jpg\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"545\" src=\"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-content\/uploads\/sites\/5\/2024\/06\/G16SALAnalysis_1200UTC_28June2024-1024x545.jpg\" alt=\"\" class=\"wp-image-60116\" srcset=\"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-content\/uploads\/sites\/5\/2024\/06\/G16SALAnalysis_1200UTC_28June2024-1024x545.jpg 1024w, https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-content\/uploads\/sites\/5\/2024\/06\/G16SALAnalysis_1200UTC_28June2024-300x160.jpg 300w, https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-content\/uploads\/sites\/5\/2024\/06\/G16SALAnalysis_1200UTC_28June2024-768x408.jpg 768w, https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-content\/uploads\/sites\/5\/2024\/06\/G16SALAnalysis_1200UTC_28June2024-1536x817.jpg 1536w, https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-content\/uploads\/sites\/5\/2024\/06\/G16SALAnalysis_1200UTC_28June2024.jpg 1542w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/a><figcaption class=\"wp-element-caption\">Saharan Air Layer analysis of dry air, 1200 UTC on 28 June 2024 (Click to enlarge)<\/figcaption><\/figure>\n\n\n\n<p>MIMIC Total Precipitable Water analyses (<a href=\"http:\/\/tropic.ssec.wisc.edu\/real-time\/mtpw2\/product.php?color_type=tpw_nrl_colors&amp;prod=natl&amp;timespan=24hrs&amp;anim=html5\">source<\/a>) for the 24 hours ending at 1400 UTC on 28 June 2024, below, shows the cyclonic circulation associated with the Invest as it moves across 40<sup>o<\/sup>W longitude (another concentrated area of moisture is moving through the northwestern Caribbean Sea).<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"1000\" height=\"470\" src=\"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-content\/uploads\/sites\/5\/2024\/06\/mimictpw_natl_15z_27June_to_14z_28June2024.gif\" alt=\"\" class=\"wp-image-60118\"\/><figcaption class=\"wp-element-caption\">MIMIC Total Precipitable Water estimates, 1500 UTC 27 June 2024 &#8211; 1400 UTC 28 June 2024 (click to enlarge)<\/figcaption><\/figure>\n\n\n\n<p>MetopC ASCAT winds, below, show a circulation near 9<sup>o<\/sup>N\/38<sup>o<\/sup>W at 2334 UTC on 27 June 2024.<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"740\" height=\"650\" src=\"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-content\/uploads\/sites\/5\/2024\/06\/ASCAT_MetopC_2334UTC_27June024.png\" alt=\"\" class=\"wp-image-60122\" srcset=\"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-content\/uploads\/sites\/5\/2024\/06\/ASCAT_MetopC_2334UTC_27June024.png 740w, https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-content\/uploads\/sites\/5\/2024\/06\/ASCAT_MetopC_2334UTC_27June024-300x264.png 300w\" sizes=\"auto, (max-width: 740px) 100vw, 740px\" \/><figcaption class=\"wp-element-caption\">ASCAT winds from MetopC, 2334 UTC on 27 June 2024 (Click to enlarge)<\/figcaption><\/figure>\n\n\n\n<p>Wind shear and Sea Surface Temperature (SST) analyses surrounding 95L, below, show a favorable environment (that is, low values of wind shear, and warm SST values). Imagery below is from the <a href=\"https:\/\/tropic.ssec.wisc.edu\">SSEC Tropical Website<\/a>.<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><a href=\"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-content\/uploads\/sites\/5\/2024\/06\/Shear_200-850_SSTAnalysis_28June2024toggle.gif\"><img loading=\"lazy\" decoding=\"async\" width=\"1052\" height=\"699\" src=\"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-content\/uploads\/sites\/5\/2024\/06\/Shear_200-850_SSTAnalysis_28June2024toggle.gif\" alt=\"\" class=\"wp-image-60120\"\/><\/a><figcaption class=\"wp-element-caption\">200-850 mb wind shear analysis, 1200 UTC on 28 June 2024, and SSTs from 2233 UTC on 27 June 2024 (Click to enlarge)<\/figcaption><\/figure>\n\n\n\n<p>GeoColor imagery overlain with GLM observations, below (<a href=\"https:\/\/www.star.nesdis.noaa.gov\/goes\/sector_band.php?sat=G16&amp;sector=taw&amp;band=EXTENT3&amp;length=48&amp;dim=1&amp;refresh=true\">source<\/a>), show occasional GLM lightning strikes within the convective cluster surrounding the tropical invest.<\/p>\n\n\n\n<figure class=\"wp-block-image size-large is-resized\"><img loading=\"lazy\" decoding=\"async\" width=\"1800\" height=\"1080\" src=\"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-content\/uploads\/sites\/5\/2024\/06\/G16_sector_taw_EXTENT3_48fr_20240628-1117.gif\" alt=\"\" class=\"wp-image-60121\" style=\"width:1086px;height:auto\"\/><figcaption class=\"wp-element-caption\">GeoColor imagery and GLM Flash Extent Density, 1040-1450 UTC on 28 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>For more information on this system, refer to the <a href=\"https:\/\/www.nhc.noaa.gov\">National Hurricane Center<\/a> and <a href=\"https:\/\/tropic.ssec.wisc.edu\">CIMSS Tropical Weather<\/a> websites.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>CSPP Geosphere imagery above (direct link) shows an area of sun glint over the tropical Atlantic. Embedded within the brighter areas of sun glint is a dark path centered near 7oN, 52oW over the ocean to the northeast of French Guiana. Long-time readers of this blog will no doubt recognize this feature as an area [&hellip;]<\/p>\n","protected":false},"author":19,"featured_media":60115,"comment_status":"closed","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[76,74,58,25,2],"tags":[],"class_list":["post-60113","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-glm","category-goes-16","category-metop","category-satellite-winds","category-tropical-cyclones"],"acf":[],"_links":{"self":[{"href":"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-json\/wp\/v2\/posts\/60113","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=60113"}],"version-history":[{"count":3,"href":"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-json\/wp\/v2\/posts\/60113\/revisions"}],"predecessor-version":[{"id":60125,"href":"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-json\/wp\/v2\/posts\/60113\/revisions\/60125"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-json\/wp\/v2\/media\/60115"}],"wp:attachment":[{"href":"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-json\/wp\/v2\/media?parent=60113"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-json\/wp\/v2\/categories?post=60113"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-json\/wp\/v2\/tags?post=60113"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}