{"id":61789,"date":"2024-11-18T20:49:59","date_gmt":"2024-11-18T20:49:59","guid":{"rendered":"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/?p=61789"},"modified":"2024-11-18T20:49:59","modified_gmt":"2024-11-18T20:49:59","slug":"great-lakes-water-temperatures-in-mid-november","status":"publish","type":"post","link":"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/archives\/61789","title":{"rendered":"Great Lakes Water Temperatures in mid-November"},"content":{"rendered":"\n
\"\"
NOAA-20 and GOES-16 estimates of Lake Surface Temperatures, ca. 0710 UTC on 18 November 2024 (Click to enlarge)<\/figcaption><\/figure>\n\n\n\n

Mostly clear skies over the Great Lakes early on 18 November allowed for good satellite estimates of Lake Surface temperatures. They are, in a word, very warm. The toggle above compares estimates from NOAA-20 and from GOES-16. The stepped animation below (source<\/a>) compares November 17th values this year with those from 2021, 2022 and 2023, and a tabular comparison for the past 4 years follows.<\/p>\n\n\n\n

\"\"<\/a>
GLERL Surface Analyses of Great Lakes surface temperatures, 17 November, 2021-2024 (Click to enlarge)<\/figcaption><\/figure>\n\n\n\n
Year<\/td>Superior<\/td>Michigan<\/td>Huron<\/td>Erie<\/td>Ontario<\/td><\/tr>
2021<\/td>8.24<\/td>10.09<\/td>10.18<\/td>11.43<\/td>10.30<\/td><\/tr>
2022<\/td>5.49<\/td>7.95<\/td>8.89<\/td>9.44<\/td>10.15<\/td><\/tr>
2023<\/td>6.52<\/td>9.63<\/td>8.60<\/td>11.07<\/td>9.71<\/td><\/tr>
2024<\/td>8.28<\/td>11.86<\/td>10.83<\/td>13.95<\/td>11.07<\/td><\/tr><\/tbody><\/table>
Mean Surface Temperatures for the 5 Great Lakes, 2021-2024<\/figcaption><\/figure>\n\n\n\n

Mean temperature plots of the five Great Lakes, shown below in comparison to the mean value (based on 1998-2023), also show the anomalous warmth (source<\/a>).<\/p>\n\n\n\n

\"\"<\/a>
Average Lake Surface Temperatures in 2024 for, left to right, Lakes Superior, Michigan, Huron, Erie and Ontario (Click to enlarge)<\/figcaption><\/figure>\n\n\n\n
\n\n\n\n

The ACSPO imagery above gives similar results from both satellites, although the higher resolution of VIIRS allows for better identification of small-scale features, and allows for values closer to the shoreline; values between the two satellites agree to within a degree of so Fahrenheit, with GOES estimates showing warmer temperatures generally. The zoomed-in toggles below compare GOES-16\/NOAA-20 over Lake Superior to the east of the Keewenaw Peninsula, and over southern Lake Michigan. The pixel size difference is obvious in the zoomed-in imagery.<\/p>\n\n\n\n

\"\"
NOAA-20 and GOES-16 estimates of Lake Surface Temperatures over Lake Superior just north of upper Michigan, ca. 0710 UTC on 18 November 2024 (Click to enlarge)<\/figcaption><\/figure>\n\n\n\n
\"\"
NOAA-20 and GOES-16 estimates of Lake Surface Temperatures over southern Lake Michigan, ca. 0710 UTC on 18 November 2024 (Click to enlarge)<\/figcaption><\/figure>\n\n\n\n
\n\n\n\n

The unseasonably warm waters of the Great Lakes mean that when temperatures do cool enough to support Lake Effect Snow, that Lake Effect snow might, at least initially, be a lot more intense than in a year with more normal Lake Surface Temperatures. NOAA-20 ACSPO SSTs were created using CSPP<\/a> software and the Direct Broadcast data downloaded via the antenna located at CIMSS<\/a>. You can also view the ACSPO SSTs at this (transitory) website<\/a>.<\/p>\n\n\n\n

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

Mostly clear skies over the Great Lakes early on 18 November allowed for good satellite estimates of Lake Surface temperatures. They are, in a word, very warm. The toggle above compares estimates from NOAA-20 and from GOES-16. The stepped animation below (source) compares November 17th values this year with those from 2021, 2022 and 2023, […]<\/p>\n","protected":false},"author":19,"featured_media":61795,"comment_status":"closed","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[74,78],"tags":[],"class_list":["post-61789","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-goes-16","category-noaa-20"],"acf":[],"_links":{"self":[{"href":"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-json\/wp\/v2\/posts\/61789","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=61789"}],"version-history":[{"count":1,"href":"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-json\/wp\/v2\/posts\/61789\/revisions"}],"predecessor-version":[{"id":61796,"href":"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-json\/wp\/v2\/posts\/61789\/revisions\/61796"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-json\/wp\/v2\/media\/61795"}],"wp:attachment":[{"href":"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-json\/wp\/v2\/media?parent=61789"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-json\/wp\/v2\/categories?post=61789"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-json\/wp\/v2\/tags?post=61789"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}