{"id":65654,"date":"2025-06-28T23:59:00","date_gmt":"2025-06-28T23:59:00","guid":{"rendered":"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/?p=65654"},"modified":"2025-07-01T20:40:06","modified_gmt":"2025-07-01T20:40:06","slug":"wildfire-in-the-northwest-territories-produces-a-large-pyrocumulonimbus-cloud","status":"publish","type":"post","link":"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/archives\/65654","title":{"rendered":"Wildfire in the Northwest Territories produces a large pyrocumulonimbus cloud"},"content":{"rendered":"<p><div style=\"width: 1292px\" class=\"wp-caption aligncenter\"><a href=\"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/images\/2025\/06\/G18_VIS_SWIR_IR_NWT_PYROCB_28JUN2025_loop_GOES-18_2025179_210021_2025180_052021.gif\"><img loading=\"lazy\" decoding=\"async\" class=\"size-medium\" src=\"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/images\/2025\/06\/G18_VIS_SWIR_IR_NWT_PYROCB_28JUN2025_B2713_2025180_012021_0003PANELS_FRAME00027.GIF\" width=\"1282\" height=\"1744\" \/><\/a><p class=\"wp-caption-text\">10-minute GOES-18 \u201cRed\u201d Visible (0.64 \u00b5m, top), Shortwave Infrared (3.9 \u00b5m, center) and \u201cClean\u201d Infrared Window (10.3 \u00b5m, bottom) images, from 2100 UTC on 28 June to 0520 UTC on 29 June [click to play animated GIF | <a href=\"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/images\/2025\/06\/G18_VIS_SWIR_IR_NWT_PYROCB_28JUN2025_loop_GOES-18_2025179_210021_2025180_052021.mp4\"><strong>MP4<\/strong><\/a>]<\/p><\/div>A cluster of wildfires was burning on both sides of the Northwest Territories \/ British Columbia border on 28 June 2025 &#8212; and 10-minute Full Disk scan GOES-18 <em>(GOES-West)<\/em> imagery <em><strong>(above)<\/strong><\/em> showed that the largest Northwest Territories wildfire produced a sizeable <a href=\"https:\/\/www.nature.com\/articles\/s43247-022-00566-8\"><strong>pyrocumulonimbus<\/strong><\/a> (pyroCb) cloud, beginning at <a href=\"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/images\/2025\/06\/G18_VIS_SWIR_IR_NWT_PYROCB_28JUN2025_B2713_2025179_223021_0003PANELS_FRAME00010.GIF\"><strong>2230 UTC<\/strong><\/a>. As it drifted northward, the cold canopy of the pyroCb expanded along its west-to-east axis &#8212; exhibiting cloud-top infrared brightness temperatures in the -50s C (shades of red).<\/p>\n<p>About 1.5 hours prior to pyroCb development, a NOAA-20 VIIRS True Color RGB image visualized using <a href=\"https:\/\/realearth.ssec.wisc.edu\"><strong>RealEarth<\/strong><\/a> <em><strong>(below)<\/strong><\/em> revealed the smoke plumes emanating from these wildfires. Significant values of Fire Radiative Power (larger, darker-red circles) were associated with the largest pyroCb-producing wildfire in the Northwest Territories.<\/p>\n<div style=\"width: 3242px\" class=\"wp-caption aligncenter\"><a href=\"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/images\/2025\/06\/250628_2056utc_noaa20_viirs_trueColorRGB_fireRadiativePower_NWT_BC_wildfires.png\"><img loading=\"lazy\" decoding=\"async\" class=\"size-medium\" src=\"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/images\/2025\/06\/250628_2056utc_noaa20_viirs_trueColorRGB_fireRadiativePower_NWT_BC_wildfires.png\" width=\"3232\" height=\"2112\" \/><\/a><p class=\"wp-caption-text\">NOAA-20 VIIRS True Color RGB image at 2056 UTC on 28 June, with an overlay of Fire Radiative Power for active fires [click to to enlarge]<\/p><\/div>\n","protected":false},"excerpt":{"rendered":"<p>A cluster of wildfires was burning on both sides of the Northwest Territories \/ British Columbia border on 28 June 2025 &#8212; and 10-minute Full Disk scan GOES-18 (GOES-West) imagery (above) showed that the largest Northwest Territories wildfire produced a sizeable pyrocumulonimbus (pyroCb) cloud, beginning at 2230 UTC. As it drifted northward, the cold canopy [&hellip;]<\/p>\n","protected":false},"author":18,"featured_media":65659,"comment_status":"closed","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[6,114,78,53,45,48],"tags":[],"class_list":["post-65654","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-fire-detection","category-goes-18","category-noaa-20","category-real-earth","category-redgreenblue-rgb-images","category-viirs"],"acf":[],"_links":{"self":[{"href":"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-json\/wp\/v2\/posts\/65654","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=65654"}],"version-history":[{"count":5,"href":"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-json\/wp\/v2\/posts\/65654\/revisions"}],"predecessor-version":[{"id":65660,"href":"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-json\/wp\/v2\/posts\/65654\/revisions\/65660"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-json\/wp\/v2\/media\/65659"}],"wp:attachment":[{"href":"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-json\/wp\/v2\/media?parent=65654"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-json\/wp\/v2\/categories?post=65654"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-json\/wp\/v2\/tags?post=65654"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}