{"id":40957,"date":"2021-05-26T22:29:08","date_gmt":"2021-05-26T22:29:08","guid":{"rendered":"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/?p=40957"},"modified":"2021-05-28T14:35:48","modified_gmt":"2021-05-28T14:35:48","slug":"standing-waves-upstream-of-nova-scotia","status":"publish","type":"post","link":"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/archives\/40957","title":{"rendered":"Standing waves upstream of Nova Scotia"},"content":{"rendered":"<div id=\"attachment_40958\" style=\"width: 635px\" class=\"wp-caption aligncenter\"><a class=\"thumbnail\" href=\"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-content\/uploads\/sites\/5\/2021\/05\/GOES16Band02-20210526_1441_to_2126anim.gif\"><img loading=\"lazy\" decoding=\"async\" aria-describedby=\"caption-attachment-40958\" class=\"wp-image-40958\" src=\"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-content\/uploads\/sites\/5\/2021\/05\/GOES16Band02-20210526_144115.png\" alt=\"\" width=\"625\" height=\"490\" \/><\/a><p id=\"caption-attachment-40958\" class=\"wp-caption-text\">GOES-16 Visible (Band 2, 0.64 \u00b5m) imagery, 1441 &#8211; 2126 UTC on 26 May 2021 (Click to animate)<\/p><\/div>\n<p>GOES-16 visible imagery above (click to animate) shows the development of standing waves upwind of southwestern Nova Scotia. These winds developed in a region of low-level southwesterly (i.e., onshore) flow, as shown in the 1806 UTC image below that includes surface observations.\u00a0 Higher clouds are moving from a more westerly direction, suggesting veering and warm-air advection.<\/p>\n<p>Note the very warm temperatures over interior Nova Scotia in the image below.\u00a0 This suggests a strong inversion such as is necessary to trap energy that is then manifest as the standing waves.\u00a0 Indeed, the <a href=\"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-content\/uploads\/sites\/5\/2021\/05\/YarmouthSounding1200UTC_26May2021.png\">Yarmouth, NS sounding at 1200 UTC<\/a> shows surface temperatures near 12 C with temperatures closer to 20 C between 900 and 950 mb;\u00a0 that works out to be a potential temperature difference of 16.5 K across the inversion.<\/p>\n<div id=\"attachment_40961\" style=\"width: 635px\" class=\"wp-caption aligncenter\"><a href=\"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-content\/uploads\/sites\/5\/2021\/05\/GOES16Band02_OBS-20210526_180615.png\"><img loading=\"lazy\" decoding=\"async\" aria-describedby=\"caption-attachment-40961\" class=\"wp-image-40961\" src=\"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-content\/uploads\/sites\/5\/2021\/05\/GOES16Band02_OBS-20210526_180615.png\" alt=\"\" width=\"625\" height=\"490\" srcset=\"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-content\/uploads\/sites\/5\/2021\/05\/GOES16Band02_OBS-20210526_180615.png 1002w, https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-content\/uploads\/sites\/5\/2021\/05\/GOES16Band02_OBS-20210526_180615-300x235.png 300w, https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-content\/uploads\/sites\/5\/2021\/05\/GOES16Band02_OBS-20210526_180615-768x602.png 768w\" sizes=\"auto, (max-width: 625px) 100vw, 625px\" \/><\/a><p id=\"caption-attachment-40961\" class=\"wp-caption-text\">GOES-16 Band 2 Visible (0.64 \u00b5m) imagery at 1806 UTC along with 1800 UTC METAR observations. (Click to enlarge)<\/p><\/div>\n<p>(Thanks to Richard DiMaio, Lewis University, for bringing this event to our attention!)<\/p>\n","protected":false},"excerpt":{"rendered":"<p>GOES-16 visible imagery above (click to animate) shows the development of standing waves upwind of southwestern Nova Scotia. These winds developed in a region of low-level southwesterly (i.e., onshore) flow, as shown in the 1806 UTC image below that includes surface observations.\u00a0 Higher clouds are moving from a more westerly direction, suggesting veering and warm-air [&hellip;]<\/p>\n","protected":false},"author":19,"featured_media":40961,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[74],"tags":[],"class_list":["post-40957","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-goes-16"],"acf":[],"_links":{"self":[{"href":"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-json\/wp\/v2\/posts\/40957","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=40957"}],"version-history":[{"count":7,"href":"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-json\/wp\/v2\/posts\/40957\/revisions"}],"predecessor-version":[{"id":40973,"href":"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-json\/wp\/v2\/posts\/40957\/revisions\/40973"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-json\/wp\/v2\/media\/40961"}],"wp:attachment":[{"href":"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-json\/wp\/v2\/media?parent=40957"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-json\/wp\/v2\/categories?post=40957"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-json\/wp\/v2\/tags?post=40957"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}