{"id":611,"date":"2008-02-20T21:53:38","date_gmt":"2008-02-20T21:53:38","guid":{"rendered":"http:\/\/cimss.ssec.wisc.edu\/satellite-blog\/archives\/611"},"modified":"2008-02-26T16:54:27","modified_gmt":"2008-02-26T16:54:27","slug":"the-great-lakes-a-diversity-of-lake-effect-snow-mechanisms","status":"publish","type":"post","link":"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/archives\/611","title":{"rendered":"The Great Lakes: a diversity of lake-effect snow mechanisms"},"content":{"rendered":"<p><a href=\"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-content\/uploads\/sites\/5\/2008\/02\/080220_g12_vis_anim.gif\" title=\"GOES-12 visible images (Animated GIF)\" target=\"_blank\"><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-content\/uploads\/sites\/5\/2008\/02\/080220_g12_vis_anim.gif\" title=\"GOES-12 visible images (Animated GIF)\" alt=\"GOES-12 visible images (Animated GIF)\" align=\"middle\" height=\"287\" width=\"479\" \/><\/a><\/p>\n<p>GOES-12 visible channel imagery <em><strong>(above)<\/strong><\/em> displayed several different lake-effect snow (LES) producing mechanisms  across the Great Lakes on <a href=\"http:\/\/www.hpc.ncep.noaa.gov\/dailywxmap\/index_20080220.html\" title=\"20 February 2008 daily weather map\" target=\"_blank\"><strong>20 February 2008<\/strong><\/a>: multiple LES bands over Lake Superior, meso-vorticies over both Lake Michigan and Lake Huron, and a single LES band over Lake Ontario. Even though the Great Lakes water temperatures were getting quite cold (generally around 32-40\u00c2\u00baF), a very cold arctic air mass <em>(overnight minimum temperatures on 20 February were as cold as -33\u00c2\u00baF at Grand Forks, North Dakota and Embarrass, Minnesota; -30\u00c2\u00baF at Upson, Wisconsin; -28\u00c2\u00baF at Stammbaugh, Michigan)<\/em> was spreading across the region <strong>(<a href=\"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-content\/uploads\/sites\/5\/2008\/02\/US_IR_Sat_20080220_1031.png\" title=\"GOES-12 IR image + surface reports\" target=\"_blank\">GOES-12 IR image + surface reports<\/a>)<\/strong> creating a large <em>water-air<\/em> temperature difference.<\/p>\n<p>So what about Lake Erie? Since Lake Erie is the  most shallow of the five Great Lakes,  it often freezes the earliest;  due to a large concentration  of ice over that particular lake <em>(as seen on <a href=\"http:\/\/www.ssec.wisc.edu\/modis-today\/index.php?satellite=a1&amp;product=true_color&amp;date=2008_02_20_051\" title=\"SSEC MODIS Today site\" target=\"_blank\"><strong>SSEC MODIS Today<\/strong><\/a> true color imagery from 4 days earlier, viewed using Google Earth, <strong>below<\/strong>)<\/em>, Lake Erie was not able to contribute the necessary heat and moisture flux needed to produce LES mechanisms on the scale that the other lakes were producing on this day.<\/p>\n<p><a href=\"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-content\/uploads\/sites\/5\/2008\/02\/080216_modis_google.jpg\" title=\"MODIS true color image (Google Earth)\" target=\"_blank\"><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-content\/uploads\/sites\/5\/2008\/02\/080216_modis_google.jpg\" title=\"MODIS true color image (Google Earth)\" alt=\"MODIS true color image (Google Earth)\" align=\"middle\" height=\"327\" width=\"480\" \/><\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>GOES-12 visible channel imagery (above) displayed several different lake-effect snow (LES) producing mechanisms across the Great Lakes on 20 February 2008: multiple LES bands over Lake Superior, meso-vorticies over both Lake Michigan and Lake Huron, and a single LES band over Lake Ontario. Even though the Great Lakes water temperatures were getting quite cold (generally [&hellip;]<\/p>\n","protected":false},"author":18,"featured_media":0,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[19,32,12,5],"tags":[],"class_list":["post-611","post","type-post","status-publish","format-standard","hentry","category-goes-12","category-google-earth","category-modis","category-winter-weather"],"acf":[],"_links":{"self":[{"href":"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-json\/wp\/v2\/posts\/611","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=611"}],"version-history":[{"count":0,"href":"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-json\/wp\/v2\/posts\/611\/revisions"}],"wp:attachment":[{"href":"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-json\/wp\/v2\/media?parent=611"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-json\/wp\/v2\/categories?post=611"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-json\/wp\/v2\/tags?post=611"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}