{"id":355,"date":"2007-02-04T20:21:55","date_gmt":"2007-02-04T20:21:55","guid":{"rendered":"http:\/\/cimss.ssec.wisc.edu\/satellite-blog\/2007\/02\/04\/cold-air-warm-water-lake-effect-snow\/"},"modified":"2007-02-05T20:06:21","modified_gmt":"2007-02-05T20:06:21","slug":"cold-air-warm-water-lake-effect-snow","status":"publish","type":"post","link":"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/archives\/355","title":{"rendered":"Cold Air + Warm Water = Lake-Effect Snow"},"content":{"rendered":"<p><a title=\"MODIS true color image of Great Lakes region\" target=\"_blank\" href=\"http:\/\/eosdb.ssec.wisc.edu\/modisdirect\/terra\/calibratedImages\/2007\/035\/2007-02-04_1621-1633_GRLA_010403_HKM.jpg\"><img loading=\"lazy\" decoding=\"async\" width=\"480\" height=\"370\" align=\"middle\" title=\"MODIS true color image of Great Lakes region\" alt=\"MODIS true color image of Great Lakes region\" src=\"http:\/\/eosdb.ssec.wisc.edu\/modisdirect\/terra\/calibratedImages\/2007\/035\/2007-02-04_1621-1633_GRLA_010403_HKM.jpg\" \/><\/a><\/p>\n<p>The coldest air of the 2006-2007 winter season <em>(surface temperatures on <a target=\"_blank\" title=\"04 February 2007 daily weather map\" href=\"http:\/\/www.hpc.ncep.noaa.gov\/dailywxmap\/index_20070204.html\"><strong>04 February 2007<\/strong><\/a> were as cold as <strong>-42\u00c2\u00ba F \/ -41\u00c2\u00ba C<\/strong> at Embarrass, Minnesota, <strong>-31\u00c2\u00ba F \/ -35\u00c2\u00ba C<\/strong> at Tomahawk, Wisconsin, and <strong>-21\u00c2\u00ba F \/ -29\u00c2\u00ba C<\/strong> at Randville, Michigan)<\/em> was flowing over the still-warm waters of the Great Lakes <em>(<a title=\"Great Lakes sea surface temperature analysis\" target=\"_blank\" href=\"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-content\/uploads\/sites\/5\/2007\/02\/glsea.gif\"><strong>water temperatures<\/strong><\/a> were generally <strong>+35\u00c2\u00ba  to +41\u00c2\u00ba F \/ +2\u00c2\u00ba  to +5\u00c2\u00ba C<\/strong>),<\/em> producing widespread bands of lake-effect snow  (LES) which were very apparent on MODIS true color imagery <em><strong>(above)<\/strong>.<strong> <\/strong><\/em>Note the transition from a <em>multiple-LES-band<\/em> regime over Lakes Superior and  Michigan to  more of a <em>single-LES-band<\/em> regime over Lakes  Erie and Ontario<em><strong> (below). <\/strong><\/em> If you look closely, you can see that ice was beginning to form along portions of the northern shore of Lake Superior, as well as along the western shore of Lake Michigan and Lake Huron. The cold temperatures were limiting snow crystal growth (creating a fine, powdery snow), but snowfall accumulations still managed to reach amounts of  <strong>17 inches \/ 43 cm<\/strong> at Grandville in lower Michigan and <strong>12 inches \/ 30 cm<\/strong> at Rainbow Lodge in the Upper Peninsula of Michigan; farther to the east, <strong>18 inches \/ 46 cm<\/strong> fell at Boston in western New York. The strong winds were also producing wind chill temperatures in the -30\u00c2\u00ba to -40\u00c2\u00ba F \/ -34\u00c2\u00ba to -40\u00c2\u00ba C range across parts of Minnesota, Iowa, and Wisconsin.<\/p>\n<p><a title=\"MODIS true color image of Lake Superior\" target=\"_blank\" href=\"http:\/\/eosdb.ssec.wisc.edu\/modisdirect\/terra\/calibratedImages\/2007\/035\/2007-02-04_1621-1633_LSUP_010403_QKM.jpg\"><img loading=\"lazy\" decoding=\"async\" width=\"483\" height=\"372\" align=\"middle\" title=\"MODIS true color image of Lake Superior\" alt=\"MODIS true color image of Lake Superior\" src=\"http:\/\/eosdb.ssec.wisc.edu\/modisdirect\/terra\/calibratedImages\/2007\/035\/2007-02-04_1621-1633_LSUP_010403_QKM.jpg\" \/><\/a><\/p>\n<p><a title=\"MODIS true color image of Lake Michigan\" target=\"_blank\" href=\"http:\/\/eosdb.ssec.wisc.edu\/modisdirect\/terra\/calibratedImages\/2007\/035\/2007-02-04_1621-1633_LMIC_010403_QKM.jpg\"><img loading=\"lazy\" decoding=\"async\" width=\"486\" height=\"376\" align=\"middle\" title=\"MODIS true color image of Lake Michigan\" alt=\"MODIS true color image of Lake Michigan\" src=\"http:\/\/eosdb.ssec.wisc.edu\/modisdirect\/terra\/calibratedImages\/2007\/035\/2007-02-04_1621-1633_LMIC_010403_QKM.jpg\" \/><\/a><\/p>\n<p><a target=\"_blank\" title=\"MODIS true color image of Lakes Erie and Ontario\" href=\"http:\/\/eosdb.ssec.wisc.edu\/modisdirect\/terra\/calibratedImages\/2007\/035\/2007-02-04_1621-1633_LERI_010403_QKM.jpg\"><img loading=\"lazy\" decoding=\"async\" width=\"488\" height=\"376\" align=\"middle\" alt=\"MODIS true color image of Lakes Erie and Ontario\" title=\"MODIS true color image of Lakes Erie and Ontario\" src=\"http:\/\/eosdb.ssec.wisc.edu\/modisdirect\/terra\/calibratedImages\/2007\/035\/2007-02-04_1621-1633_LERI_010403_QKM.jpg\" \/><\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>The coldest air of the 2006-2007 winter season (surface temperatures on 04 February 2007 were as cold as -42\u00c2\u00ba F \/ -41\u00c2\u00ba C at Embarrass, Minnesota, -31\u00c2\u00ba F \/ -35\u00c2\u00ba C at Tomahawk, Wisconsin, and -21\u00c2\u00ba F \/ -29\u00c2\u00ba C at Randville, Michigan) was flowing over the still-warm waters of the Great Lakes (water temperatures [&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":[10,12,5],"tags":[],"class_list":["post-355","post","type-post","status-publish","format-standard","hentry","category-general-interpretation","category-modis","category-winter-weather"],"acf":[],"_links":{"self":[{"href":"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-json\/wp\/v2\/posts\/355","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=355"}],"version-history":[{"count":0,"href":"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-json\/wp\/v2\/posts\/355\/revisions"}],"wp:attachment":[{"href":"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-json\/wp\/v2\/media?parent=355"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-json\/wp\/v2\/categories?post=355"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-json\/wp\/v2\/tags?post=355"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}