{"id":24718,"date":"2017-08-12T23:59:31","date_gmt":"2017-08-12T23:59:31","guid":{"rendered":"http:\/\/cimss.ssec.wisc.edu\/satellite-blog\/?p=24718"},"modified":"2017-08-16T15:02:06","modified_gmt":"2017-08-16T15:02:06","slug":"24718","status":"publish","type":"post","link":"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/archives\/24718","title":{"rendered":"Pyrocumulonimbus clouds in British Columbia, Canada"},"content":{"rendered":"

\"GOES-16<\/a>

GOES-16 Visible (0.64 \u00b5m, top) and Shortwave Infrared (3.9 \u00b5m, bottom) images, with hourly surface reports plotted in yellow [click to play animation]<\/p><\/div>* GOES-16 data posted on this page are preliminary, non-operational and are undergoing testing*<\/em><\/p>\n

GOES-16 “Red” Visible (0.64 \u00b5m<\/strong><\/a>) and Shortwave Infrared (3.9 \u00b5m<\/strong><\/a>) images (above)<\/strong> <\/em>along with “Red” Visible and “Clean” Infrared Window (10.3 \u00b5m<\/strong><\/a>) images (below)<\/em><\/strong> showed the formation of 3 pyrocumulonimbus( pyroCb) clouds late in the evening on 12 August 2017<\/strong><\/a>, within the cluster of ongoing intense wildfires in British Columbia, Canada.<\/p>\n

\"GOES-16<\/a>

GOES-16 Visible (0.64 \u00b5m, top) and Infrared Window (10.3 \u00b5m, bottom) images, with hourly surface reports plotted in yellow [click to play animation]<\/p><\/div>A toggle between NOAA-18 AVHRR<\/strong><\/a> Visible (0.63 \u00b5m), Near-Infrared (0.86 \u00b5m), Shortwave Infrared (3.9 \u00b5m) and Longwave Infrared Window (10.8 \u00b5m) images is shown below. The coldest cloud-top IR brightness temperature was -70\u00ba C (associated with the northernmost pyroCb).<\/p>\n

\"NOAA-18<\/a>

NOAA-18 Visible (0.63 \u00b5m), Shortwave Infrared (3.9 \u00b5m) and Longwave Infrared Window (10.3 \u00b5m) images, with surface station plots in yellow [click to enlarge]<\/p><\/div>In a daytime Suomi NPP VIIRS true-color Red\/Green\/Blue (RGB) image (from RealEarth<\/strong><\/a>) with VIIRS-detected fire locations plotted in red (below),<\/strong><\/em> a very large pall of exceptionally-dense smoke from the BC fires could be seen drifting northward as far as the Northwest Territories of Canada.<\/p>\n

\"Suomi<\/a>

Suomi NPP VIIRS true-color image, with VIIRS-detected fire locations plotted in red [click to enlarge]<\/p><\/div>The Suomi NPP OMPS Aerosol Index (AI) product (below; <\/strong>courtesy of Colin Seftor, SSAI)<\/strong><\/em> displayed AI values as high as 17.18 within the thick BC fire smoke pall.<\/p>\n

\"Suomi<\/a>

Suomi NPP OMPS Aerosol Index [click to enlarge]<\/p><\/div>\n

===== 13 August Update =====<\/strong><\/p>\n

\"Suomi<\/a>

Suomi NPP OMPS Aerosol Index product [click to enlarge]<\/p><\/div>On 13 August, a maximum OMPS AI value of 39.91 was seen at around 21:13 UTC over the Northwest Territories of Canada (above)<\/strong><\/em> — according to Colin Seftor and Mike Fromm (NRL), this value surpassed the highest pyroCb-related AI value ever measured by TOMS or OMI (whose period of record began in 1979).<\/p>\n

The north-northeastward transport of BC fire smoke — as well as a prominent increase in smoke from fires across northern Canada and the Prairies — was evident in an animation of daily composites of Suomi NPP VIIRS true-color images from 07-13 August (below).<\/strong><\/em><\/p>\n

\"Daily<\/a>

Daily Suomi NPP VIIRS true-color image composites (07-13 August), with VIIRS-detected fire locations plotted in red [click to play animation]<\/p><\/div>\n","protected":false},"excerpt":{"rendered":"

* GOES-16 data posted on this page are preliminary, non-operational and are undergoing testing* GOES-16 “Red” Visible (0.64 \u00b5m) and Shortwave Infrared (3.9 \u00b5m) images (above) along with “Red” Visible and “Clean” Infrared Window (10.3 \u00b5m) images (below) showed the formation of 3 pyrocumulonimbus( pyroCb) clouds late in the evening on 12 August 2017, within […]<\/p>\n","protected":false},"author":18,"featured_media":24722,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[22,6,74,26,53,45,49,48],"tags":[],"class_list":["post-24718","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-avhrr","category-fire-detection","category-goes-16","category-poes","category-real-earth","category-redgreenblue-rgb-images","category-suomi_npp","category-viirs"],"acf":[],"_links":{"self":[{"href":"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-json\/wp\/v2\/posts\/24718","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=24718"}],"version-history":[{"count":8,"href":"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-json\/wp\/v2\/posts\/24718\/revisions"}],"predecessor-version":[{"id":24730,"href":"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-json\/wp\/v2\/posts\/24718\/revisions\/24730"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-json\/wp\/v2\/media\/24722"}],"wp:attachment":[{"href":"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-json\/wp\/v2\/media?parent=24718"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-json\/wp\/v2\/categories?post=24718"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-json\/wp\/v2\/tags?post=24718"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}