{"id":63209,"date":"2025-02-26T19:04:51","date_gmt":"2025-02-26T19:04:51","guid":{"rendered":"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/?p=63209"},"modified":"2025-02-27T01:48:05","modified_gmt":"2025-02-27T01:48:05","slug":"clear-skies-and-noaa-20-sea-surface-temperatures","status":"publish","type":"post","link":"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/archives\/63209","title":{"rendered":"Clear skies and NOAA-20 sea-surface temperatures"},"content":{"rendered":"\n
\"\"<\/a>
Composite sea-surface temperatures and Day Night band visible imagery from NOAA-20, 26 February 2025 (click to enlarge)<\/figcaption><\/figure>\n\n\n\n

High pressure and mild temperatures over the western Atlantic and adjacent Gulf waters early on 26 February 2025 (here is the 1200 UTC surface analysis<\/a>) meant NOAA-20 VIIRS data could provide near-complete views of sea- (and lake-) surface temperatures. The above image was captured from the RealEarth<\/a> website. The warm waters (mid-70s o<\/sup>F) of the Gulf Stream off the North Carolina coast are in very close proximity to cold (mid-40s o<\/sup>F). Direct Broadcast data processed into AWIPS-ready VIIRS tiles are available from CIMSS and an example swath is shown below.<\/p>\n\n\n\n

\"\"<\/a>
Sea-surface temperatures and Day Night band visible imagery from NOAA-20, 0715 UTC on 26 February 2025 (click to enlarge)<\/figcaption><\/figure>\n\n\n\n

A zoomed-in view over the Outer Banks of North Carolina, below, shows the strength of the SST gradient, from very warm to much colder in less than 40 miles.<\/p>\n\n\n\n

\"\"<\/a>
Sea-surface temperatures and Day Night band visible imagery from NOAA-20, 0715 UTC on 26 February 2025, zoomed in over the Outer Banks of North Carolina (click to enlarge)<\/figcaption><\/figure>\n\n\n\n

The SSTs over the northern part of the South Atlantic bight, shown below, include filaments of colder water extending from the shelf waters out into the open ocean.<\/p>\n\n\n\n

\"\"<\/a>
Sea-surface temperatures and Day Night band visible imagery from NOAA-20, 0715 UTC on 26 February 2025, zoomed in to the east of the Carolinas (click to enlarge)<\/figcaption><\/figure>\n\n\n\n

NOAA-20 True-Color imagery, below, from the VIIRS Today website<\/a>, shows filaments of turbid water that suggest a link between the observed cold filaments above and cold fresher water from the Continent. (Note also the smoke plumes over the southeastern US!)<\/p>\n\n\n\n

\"\"<\/a>
NOAA-20 True-Color imagery, 26 February 2025 (click to enlarge)<\/figcaption><\/figure>\n","protected":false},"excerpt":{"rendered":"

High pressure and mild temperatures over the western Atlantic and adjacent Gulf waters early on 26 February 2025 (here is the 1200 UTC surface analysis) meant NOAA-20 VIIRS data could provide near-complete views of sea- (and lake-) surface temperatures. The above image was captured from the RealEarth website. The warm waters (mid-70s oF) of the […]<\/p>\n","protected":false},"author":19,"featured_media":63210,"comment_status":"closed","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[78,53,48],"tags":[],"class_list":["post-63209","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-noaa-20","category-real-earth","category-viirs"],"acf":[],"_links":{"self":[{"href":"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-json\/wp\/v2\/posts\/63209","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=63209"}],"version-history":[{"count":11,"href":"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-json\/wp\/v2\/posts\/63209\/revisions"}],"predecessor-version":[{"id":63233,"href":"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-json\/wp\/v2\/posts\/63209\/revisions\/63233"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-json\/wp\/v2\/media\/63210"}],"wp:attachment":[{"href":"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-json\/wp\/v2\/media?parent=63209"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-json\/wp\/v2\/categories?post=63209"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-json\/wp\/v2\/tags?post=63209"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}