{"id":41629,"date":"2021-07-25T16:40:46","date_gmt":"2021-07-25T16:40:46","guid":{"rendered":"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/?p=41629"},"modified":"2021-07-26T16:40:48","modified_gmt":"2021-07-26T16:40:48","slug":"tropical-disturbance-off-the-us-southeast-coast","status":"publish","type":"post","link":"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/archives\/41629","title":{"rendered":"Tropical disturbance off the US Southeast Coast"},"content":{"rendered":"\n<figure class=\"wp-block-video\"><video height=\"1032\" style=\"aspect-ratio: 1920 \/ 1032;\" width=\"1920\" controls loop src=\"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-content\/uploads\/sites\/5\/2021\/07\/CSPPGeoSphere_20Frames_ending_1550UTC_25July2021.mp4\"><\/video><figcaption>CSPP GeoSphere animation, 1240-1550 UTC on 25 July 2021<\/figcaption><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">The National Hurricane Center is monitoring an area of disturbed weather over the western Atlantic, to the north of the Bahamas and south of Cape Hatteras.  The three-hour animation from the CSPP GeoSphere site (<a href=\"https:\/\/geosphere.ssec.wisc.edu\/#playing:true;coordinate:-382804,3047707;zoom:6;map_borders:off;num_frames:20;start_time:2021-07-25T12:50:22Z;timeframe:Start%20Time;\">link<\/a>, above), shows convection and a small low-level cyclonic circulation.  This system is drifting to the east, towards Florida, and is in an environment of small values of vertical wind shear (the analysis below is from the <a href=\"http:\/\/tropic.ssec.wisc.edu\/\">CIMSS Tropical Weather Site<\/a>) that could augur further development.  Refer to the pages of the <a href=\"https:\/\/www.nhc.noaa.gov\">National Hurricane Center<\/a> for more information.<\/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\/2021\/07\/200-850Shear_1400UTC_25July-1024x680.gif\" alt=\"\" class=\"wp-image-41632\" srcset=\"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-content\/uploads\/sites\/5\/2021\/07\/200-850Shear_1400UTC_25July-1024x680.gif 1024w, https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-content\/uploads\/sites\/5\/2021\/07\/200-850Shear_1400UTC_25July-300x199.gif 300w, https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-content\/uploads\/sites\/5\/2021\/07\/200-850Shear_1400UTC_25July-768x510.gif 768w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><figcaption>200-850 Shear Values, 1400 UTC on 25 July 2021.  The disturbance center is denoted with an I.<\/figcaption><\/figure>\n\n\n\n<hr class=\"wp-block-separator\" \/>\n\n\n\n<p class=\"wp-block-paragraph\">The Day Night Band image from Suomi NPP, below, from the early morning of 25 July 2021, (from the <a href=\"https:\/\/ge.ssec.wisc.edu\/viirs-today\/index.php?satellite=n1&amp;product=DNB&amp;date=2021_07_25_206&amp;overlay_sector=false&amp;overlay_state=true&amp;overlay_coastline=true&amp;sector=USA8&amp;resolution=1000m\">VIIRS Today website<\/a>) shows the storm under the waning Buck Full Moon.  Compare that to the NOAA-20 Day Night Band image from 24 July, the night before (<a href=\"https:\/\/ge.ssec.wisc.edu\/viirs-today\/index.php?satellite=n2&amp;product=DNB&amp;date=2021_07_24_205&amp;overlay_sector=false&amp;overlay_state=true&amp;overlay_coastline=true&amp;sector=USA8&amp;resolution=1000m\">link<\/a>):  the amount of convection decreased between 24 and 25 July.<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"887\" height=\"1024\" src=\"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-content\/uploads\/sites\/5\/2021\/07\/npp.25July2021.USA8_.DNBD_.1000m-887x1024.jpg\" alt=\"\" class=\"wp-image-41635\" srcset=\"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-content\/uploads\/sites\/5\/2021\/07\/npp.25July2021.USA8_.DNBD_.1000m-887x1024.jpg 887w, https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-content\/uploads\/sites\/5\/2021\/07\/npp.25July2021.USA8_.DNBD_.1000m-260x300.jpg 260w, https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-content\/uploads\/sites\/5\/2021\/07\/npp.25July2021.USA8_.DNBD_.1000m-768x886.jpg 768w, https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-content\/uploads\/sites\/5\/2021\/07\/npp.25July2021.USA8_.DNBD_.1000m.jpg 1300w\" sizes=\"auto, (max-width: 887px) 100vw, 887px\" \/><figcaption>Suomi NPP Day Night Band imagery, 25 July 2021<\/figcaption><\/figure>\n\n\n\n<hr class=\"wp-block-separator\" \/>\n\n\n\n<p class=\"wp-block-paragraph\">On the morning of 26 July 2021, the disturbance is moving into Florida\/Georgia.   Convection associated with the system is not over its center.  (<a href=\"https:\/\/geosphere.ssec.wisc.edu\/#playing:true;coordinate:-541499,3142911;zoom:6;num_frames:20;start_time:2021-07-26T13:00:22Z;timeframe:Start%20Time;\">CSPP Geosphere link<\/a>)<\/p>\n\n\n\n<figure class=\"wp-block-video\"><video height=\"1032\" style=\"aspect-ratio: 1920 \/ 1032;\" width=\"1920\" controls loop src=\"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-content\/uploads\/sites\/5\/2021\/07\/CSPPGeoSphere_2021-07-26_1320to1610.mp4\"><\/video><figcaption>CSPP Geosphere animation, 1320-1610 UTC on 26 July 2021<\/figcaption><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\"><\/p>\n","protected":false},"excerpt":{"rendered":"<p>The National Hurricane Center is monitoring an area of disturbed weather over the western Atlantic, to the north of the Bahamas and south of Cape Hatteras. The three-hour animation from the CSPP GeoSphere site (link, above), shows convection and a small low-level cyclonic circulation. This system is drifting to the east, towards Florida, and is [&hellip;]<\/p>\n","protected":false},"author":19,"featured_media":41635,"comment_status":"closed","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[74,78,49,2,48],"tags":[],"class_list":["post-41629","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-goes-16","category-noaa-20","category-suomi_npp","category-tropical-cyclones","category-viirs"],"acf":[],"_links":{"self":[{"href":"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-json\/wp\/v2\/posts\/41629","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=41629"}],"version-history":[{"count":9,"href":"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-json\/wp\/v2\/posts\/41629\/revisions"}],"predecessor-version":[{"id":41643,"href":"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-json\/wp\/v2\/posts\/41629\/revisions\/41643"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-json\/wp\/v2\/media\/41635"}],"wp:attachment":[{"href":"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-json\/wp\/v2\/media?parent=41629"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-json\/wp\/v2\/categories?post=41629"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-json\/wp\/v2\/tags?post=41629"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}