{"id":67067,"date":"2025-10-02T23:59:00","date_gmt":"2025-10-02T23:59:00","guid":{"rendered":"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/?p=67067"},"modified":"2025-10-04T23:18:55","modified_gmt":"2025-10-04T23:18:55","slug":"thermal-signatures-of-the-chevron-el-segundo-refinery-fire-near-los-angeles","status":"publish","type":"post","link":"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/archives\/67067","title":{"rendered":"Thermal signatures of the Chevron El Segundo refinery fire near Los Angeles"},"content":{"rendered":"<p><div style=\"width: 2982px\" class=\"wp-caption aligncenter\"><a href=\"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/images\/2025\/10\/251003_goes18_nearInfrared_shortwaveInfrared_Ca_refinery_fire.mp4\"><img loading=\"lazy\" decoding=\"async\" class=\"size-medium\" src=\"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/images\/2025\/10\/251003_0431utc_goes18_nearInfrared_shortwaveInfrared_CA_refinery_fire.png\" width=\"2972\" height=\"1662\" \/><\/a><p class=\"wp-caption-text\">5-minute GOES-18 Near-Infrared (0.87 \u00b5m, 1.61 \u00b5m and 2.25 \u00b5m) and Shortwave Infrared (3.9 \u00b5m) images, from 0416-0701 UTC on 03 October; Interstate highways are plotted in red [click to play MP4 animation]<\/p><\/div>An explosion followed by a large fire occurred at the Chevron El Segundo refinery near Los Angeles (<a href=\"https:\/\/www.latimes.com\/california\/story\/2025-10-02\/la-me-fire-refinery\"><strong>media story<\/strong><\/a>) around 0430 UTC on 03 October 2025 (9:30 PM PDT on 02 October). A thermal signature of the fire was evident in 5-minute CONUS Sector GOES-18 <em>(GOES-West)<\/em> Near-Infrared and Shortwave Infrared images <strong><em>(above)<\/em><\/strong>, beginning at <a href=\"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/images\/2025\/10\/251003_0431utc_goes18_nearInfrared_shortwaveInfrared_CA_refinery_fire.png\"><strong>0431 UTC<\/strong><\/a> &#8212; however, this thermal signature began to become less apparent after about 0701 UTC.<\/p>\n<p>In contrast, GOES-18 <a href=\"https:\/\/cimss.ssec.wisc.edu\/ngfs\/images\/documentation\/QuickGuide_NGFS_Microphysics_Feb2025_jao2.pdf\"><strong>Microphysics RGB<\/strong><\/a> images with an overlay of <a href=\"https:\/\/cimss.ssec.wisc.edu\/ngfs\/\"><strong>Next Generation Fire System<\/strong><\/a> (NGFS) Fire Detection polygons <em><strong>(below)<\/strong><\/em> exhibited a distinct thermal signature for a significantly longer time period (ending at <a href=\"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/images\/2025\/10\/251003_1625utc_goes18_microphysicsRGB_ngfsFireDetections.png\"><strong>1626 UTC<\/strong><\/a>).<\/p>\n<p><div style=\"width: 3012px\" class=\"wp-caption aligncenter\"><a href=\"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/images\/2025\/10\/251003_goes18_ngfs_CA_refinery_fire.mp4\"><img loading=\"lazy\" decoding=\"async\" class=\"size-medium\" src=\"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/images\/2025\/10\/251003_0431utc_goes18_ngfs.png\" width=\"3002\" height=\"1790\" \/><\/a><p class=\"wp-caption-text\">5-minute GOES-18 Microphysics RGB images with an overlay of NGFS Fire Detection polygons, from 0416-1701 UTC on 03 October [click to play MP4 animation]<\/p><\/div>A cursor sample of GOES-18 NGFS Fire Detection parameters at 0431 UTC is shown below.<\/p>\n<div style=\"width: 3242px\" class=\"wp-caption aligncenter\"><a href=\"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/images\/2025\/10\/251003_0431utc_goes18_ngfs_cursor_sample.png\"><img loading=\"lazy\" decoding=\"async\" class=\"size-medium\" src=\"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/images\/2025\/10\/251003_0431utc_goes18_ngfs_cursor_sample.png\" width=\"3232\" height=\"2112\" \/><\/a><p class=\"wp-caption-text\">GOES-18 Microphysics RGB image at 0431 UTC on 03 October, with a cursor sample of NGFS Fire Detection parameters [click to enlarge]<\/p><\/div>\n","protected":false},"excerpt":{"rendered":"<p>An explosion followed by a large fire occurred at the Chevron El Segundo refinery near Los Angeles (media story) around 0430 UTC on 03 October 2025 (9:30 PM PDT on 02 October). A thermal signature of the fire was evident in 5-minute CONUS Sector GOES-18 (GOES-West) Near-Infrared and Shortwave Infrared images (above), beginning at 0431 [&hellip;]<\/p>\n","protected":false},"author":18,"featured_media":67068,"comment_status":"closed","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[6,159,158],"tags":[],"class_list":["post-67067","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-fire-detection","category-goes-19","category-ngfs"],"acf":[],"_links":{"self":[{"href":"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-json\/wp\/v2\/posts\/67067","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=67067"}],"version-history":[{"count":20,"href":"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-json\/wp\/v2\/posts\/67067\/revisions"}],"predecessor-version":[{"id":67091,"href":"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-json\/wp\/v2\/posts\/67067\/revisions\/67091"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-json\/wp\/v2\/media\/67068"}],"wp:attachment":[{"href":"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-json\/wp\/v2\/media?parent=67067"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-json\/wp\/v2\/categories?post=67067"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-json\/wp\/v2\/tags?post=67067"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}