{"id":46139,"date":"2022-05-04T23:59:00","date_gmt":"2022-05-04T23:59:00","guid":{"rendered":"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/?p=46139"},"modified":"2022-05-06T03:44:36","modified_gmt":"2022-05-06T03:44:36","slug":"first-thunderstorm-of-the-season-in-the-anchorage-alaska-area","status":"publish","type":"post","link":"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/archives\/46139","title":{"rendered":"First thunderstorm of the season in the Anchorage, Alaska area"},"content":{"rendered":"\n<figure class=\"wp-block-embed is-type-rich is-provider-twitter wp-block-embed-twitter\"><div class=\"wp-block-embed__wrapper\">\n<blockquote class=\"twitter-tweet\" data-width=\"500\" data-dnt=\"true\"><p lang=\"en\" dir=\"ltr\">First thunderstorms of the year around here. <a href=\"https:\/\/twitter.com\/DaveSnider?ref_src=twsrc%5Etfw\">@DaveSnider<\/a> <a href=\"https:\/\/twitter.com\/capture907?ref_src=twsrc%5Etfw\">@capture907<\/a> <a href=\"https:\/\/twitter.com\/alaskawx?ref_src=twsrc%5Etfw\">@AlaskaWx<\/a> <a href=\"https:\/\/t.co\/xeMhNiLSiU\">pic.twitter.com\/xeMhNiLSiU<\/a><\/p>&mdash; Brian Brettschneider (@Climatologist49) <a href=\"https:\/\/twitter.com\/Climatologist49\/status\/1522010600968101888?ref_src=twsrc%5Etfw\">May 5, 2022<\/a><\/blockquote><script async src=\"https:\/\/platform.twitter.com\/widgets.js\" charset=\"utf-8\"><\/script>\n<\/div><\/figure>\n\n\n<div style=\"width: 650px\" class=\"wp-caption aligncenter\"><a href=\"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/images\/2022\/05\/220504_goes17_visible_AK_anim.gif\"><img loading=\"lazy\" decoding=\"async\" class=\"size-medium\" src=\"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/images\/2022\/05\/ak_vis-20220504_235949.png\" width=\"640\" height=\"310\"><\/a><p class=\"wp-caption-text\">GOES-17 &#8220;Red&#8221; Visible (0.64 \u00b5m) images [click to play animated GIF | <a href=\"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/images\/2022\/05\/220504_goes17_visible_AK_anim.mp4\"><strong>MP4<\/strong><\/a>]<\/p><\/div>\n<p>1-minute Mesoscale Domain Sector GOES-17 <em>(GOES-West)<\/em> &#8220;Red&#8221; Visible (0.64 \u00b5m) images <em><strong>(above)<\/strong><\/em> showed these isolated thunderstorms as they moved north-northwestward up the Susitna Valley (northwest of Anchorage).<\/p>\n<p>In the corresponding 1-minute GOES-17 &#8220;Clean&#8221; Infrared Window (10.35 \u00b5m) images <em><strong>(below)<\/strong><\/em>, the coldest cloud-top infrared brightness temperatures of the thunderstorms were around -35\u00baC (darker blue enhancement).<\/p>\n<div style=\"width: 650px\" class=\"wp-caption aligncenter\"><a href=\"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/images\/2022\/05\/220504_goes17_infrared_AK_anim.gif\"><img loading=\"lazy\" decoding=\"async\" class=\"size-medium\" src=\"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/images\/2022\/05\/ak_ir-20220504_235949.png\" width=\"640\" height=\"310\"><\/a><p class=\"wp-caption-text\">GOES-17 &#8220;Clean&#8221; Infrared Window (10.35 \u00b5m) images [click to play animated GIF | <a href=\"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/images\/2022\/05\/220504_goes17_infrared_AK_anim.mp4\"><strong>MP4<\/strong><\/a>]<\/p><\/div>\n<p>A toggle between Suomi-NPP VIIRS Visible (0.64 \u00b5m) and Infrared Window (11.45 \u00b5m) images around 2201 UTC <strong><em>(below)<\/em><\/strong> included a plot of available NUCAPS sounding points from NOAA-20.<\/p>\n<div style=\"width: 650px\" class=\"wp-caption aligncenter\"><a href=\"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/images\/2022\/05\/220504_2201utc_viirs_visible_infrared_AK_anim.gif\"><img loading=\"lazy\" decoding=\"async\" class=\"size-medium\" src=\"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/images\/2022\/05\/220504_2201utc_viirs_visible_infrared_AK_anim.gif\" width=\"640\" height=\"310\"><\/a><p class=\"wp-caption-text\">Suomi-NPP VIIRS Visible (0.64 \u00b5m) and Infrared Window (11.45 \u00b5m) images and 2201 UTC [click to enlarge]<\/p><\/div>\n<p>The NOAA-20 NUCAPS profile for the green (infrared + microwave) sounding point 25 miles WSW of Big Lake <em><strong>(below)<\/strong><\/em> diagnosed a surface parcel CAPE value of 616 J\/kg, with a Lifted Index of -3. &nbsp;<\/p>\n<div style=\"width: 650px\" class=\"wp-caption aligncenter\"><a href=\"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/images\/2022\/05\/220504_2259utc_nucaps_sw.png\"><img loading=\"lazy\" decoding=\"async\" class=\"size-medium\" src=\"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/images\/2022\/05\/220504_2259utc_nucaps_sw.png\" width=\"640\" height=\"320\"><\/a><p class=\"wp-caption-text\">NOAA-20 NUCAPS profile for the sounding point 25 miles WSW of Big Lake [click to enlarge]<\/p><\/div>\n<p>A later toggle between Suomi-NPP VIIRS Visible (0.64 \u00b5m) and Infrared Window (11.45 \u00b5m) images and 2345 UTC is shown below; the coldest cloud-top infrared brightness temperature of the thunderstorms was -38\u00baC (near Big Lake), which closely corresponded to the altitude of the Equilibrium Level on the NUCAPS profile.<\/p>\n<div style=\"width: 650px\" class=\"wp-caption aligncenter\"><a href=\"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/images\/2022\/05\/220504_2345utc_viirs_visible_infrared_AK_anim.gif\"><img loading=\"lazy\" decoding=\"async\" class=\"size-medium\" src=\"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/images\/2022\/05\/220504_2345utc_viirs_visible_infrared_AK_anim.gif\" width=\"640\" height=\"310\"><\/a><p class=\"wp-caption-text\">Suomi-NPP VIIRS Visible (0.64 \u00b5m) and Infrared Window (11.45 \u00b5m) images and 2345 UTC [click to enlarge]<\/p><\/div>","protected":false},"excerpt":{"rendered":"<p>1-minute Mesoscale Domain Sector GOES-17 (GOES-West) &#8220;Red&#8221; Visible (0.64 \u00b5m) images (above) showed these isolated thunderstorms as they moved north-northwestward up the Susitna Valley (northwest of Anchorage). In the corresponding 1-minute GOES-17 &#8220;Clean&#8221; Infrared Window (10.35 \u00b5m) images (below), the coldest cloud-top infrared brightness temperatures of the thunderstorms were around -35\u00baC (darker blue enhancement). A [&hellip;]<\/p>\n","protected":false},"author":18,"featured_media":46153,"comment_status":"closed","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[80,78,83,49,48],"tags":[],"class_list":["post-46139","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-goes-17","category-noaa-20","category-nucaps","category-suomi_npp","category-viirs"],"acf":[],"_links":{"self":[{"href":"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-json\/wp\/v2\/posts\/46139","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=46139"}],"version-history":[{"count":2,"href":"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-json\/wp\/v2\/posts\/46139\/revisions"}],"predecessor-version":[{"id":46154,"href":"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-json\/wp\/v2\/posts\/46139\/revisions\/46154"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-json\/wp\/v2\/media\/46153"}],"wp:attachment":[{"href":"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-json\/wp\/v2\/media?parent=46139"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-json\/wp\/v2\/categories?post=46139"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-json\/wp\/v2\/tags?post=46139"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}