{"id":438,"date":"2007-07-23T23:59:24","date_gmt":"2007-07-23T23:59:24","guid":{"rendered":"http:\/\/cimss.ssec.wisc.edu\/satellite-blog\/2007\/07\/23\/rapid-warming-of-southern-lake-michigan-water-temperatures\/"},"modified":"2020-01-29T16:14:27","modified_gmt":"2020-01-29T16:14:27","slug":"rapid-warming-of-southern-lake-michigan-water-temperatures","status":"publish","type":"post","link":"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/archives\/438","title":{"rendered":"Rapid warming of southern Lake Michigan water temperatures"},"content":{"rendered":"

\"AWIPS<\/a><\/p>\n

An AWIPS image of the MODIS Sea Surface Temperature (SST<\/strong>) product (above)<\/strong><\/em> revealed a pocket of warmer SST values (72-75\u00baF or 22-24\u00baC, orange enhancement)<\/em> over the mid-lake waters of southern Lake Michigan during the afternoon (around 19:41 UTC, or 2:41 PM local time) on 23 July 2007<\/strong><\/a>.<\/p>\n

An animation of daily MODIS SST images (below)<\/strong><\/em> indicates that this particular warm water feature was not evident on afternoon MODIS SST imagery over southern Lake Michigan on 20 July<\/strong><\/a> or 21 July<\/strong><\/a>, but the water temperatures did begin to increase over that general region on 22 July<\/strong><\/a>.<\/p>\n

\"MODIS<\/a><\/p>\n

A time series plot (below)<\/strong><\/em> of the air temperature and water temperature from the southern Lake Michigan Buoy 45007 (data courtesy of the National Data Buoy Center<\/a><\/strong>) <\/em>shows that water temperatures at that location (along the northern fringe of the warm SST feature) warmed at a rate of nearly 1\u00baF per hour during the afternoon hours on 23 July (with a total increase of 9\u00baF or 5\u00baC in the 12-hour period from 12:00-00:00 UTC). It is interesting to note that the Buoy 45007 water temperature (blue; measured at 0.6 meter below the site elevation)<\/em> warmed more quickly than the Buoy 45007 air temperature (red; measured at 4 meters above the site elevation)<\/em> during the daytime hours (12 GMT to 00 GMT) on both on 22 July and 23 July. Relatively light winds<\/a><\/strong> (4 knots or less)<\/em> and low wave heights<\/strong><\/a> during the morning and afternoon allowed for such a rapid warming of the lake’s “skin temperature” (a similar diurnal change in SST values over the Gulf of Mexico and the western Atlantic Ocean — as much as 3 K (5\u00baF) in regions of light winds — was previously reported using GOES-8\/GOES-9 IR satellite data [<\/strong>Wu, Menzel, and Wade, 1999<\/strong><\/a>]<\/strong>).<\/em> The maximum MODIS SST values of 77\u00baF (25\u00baC) seen on 23 July were the warmest observed over southern Lake Michigan during the 8-day period from 17-24 July<\/strong><\/a>.<\/p>\n

\"Buoy<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"

An AWIPS image of the MODIS Sea Surface Temperature (SST) product (above) revealed a pocket of warmer SST values (72-75\u00baF or 22-24\u00baC, orange enhancement) over the mid-lake waters of southern Lake Michigan during the afternoon (around 19:41 UTC, or 2:41 PM local time) on 23 July 2007. An animation of daily MODIS SST images (below) […]<\/p>\n","protected":false},"author":18,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[8,12],"tags":[],"class_list":["post-438","post","type-post","status-publish","format-standard","hentry","category-marine-weather","category-modis"],"acf":[],"_links":{"self":[{"href":"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-json\/wp\/v2\/posts\/438","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=438"}],"version-history":[{"count":6,"href":"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-json\/wp\/v2\/posts\/438\/revisions"}],"predecessor-version":[{"id":35506,"href":"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-json\/wp\/v2\/posts\/438\/revisions\/35506"}],"wp:attachment":[{"href":"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-json\/wp\/v2\/media?parent=438"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-json\/wp\/v2\/categories?post=438"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-json\/wp\/v2\/tags?post=438"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}