{"id":23932,"date":"2017-05-08T23:59:43","date_gmt":"2017-05-08T23:59:43","guid":{"rendered":"http:\/\/cimss.ssec.wisc.edu\/satellite-blog\/?p=23932"},"modified":"2019-12-29T03:17:16","modified_gmt":"2019-12-29T03:17:16","slug":"large-hail-in-eastern-colorado","status":"publish","type":"post","link":"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/archives\/23932","title":{"rendered":"Large hail in eastern Colorado"},"content":{"rendered":"<p><div style=\"width: 650px\" class=\"wp-caption aligncenter\"><a class=\"thumbnail\" href=\"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/images\/2017\/05\/170508_goes16_mesoscale_visible_infrared_spc_storm_reports_Colorado_hail_storm_anim.gif\"><img loading=\"lazy\" decoding=\"async\" class=\"thumbnail\" src=\"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/images\/2017\/05\/G16_VIS_IR_CO_SVR_08MAY2017_B213_2017128_210657_0002PANELS_FRAME00374.GIF\" alt=\"GOES-16 Visible (0.64 \u00b5m, left) and Infrared Window (10.4 \u00b5m, right) images, with surface station identifiers in yellow and SPC reports of hail size in cyan [click to play MP4 animation]\" width=\"640\" height=\"480\" \/><\/a><p class=\"wp-caption-text\">GOES-16 Visible<em> (0.64 \u00b5m, left)<\/em> and Infrared Window<em> (10.35 \u00b5m, right)<\/em> images, with surface station identifiers plotted in yellow and SPC reports of hail size plotted in red\/cyan [click to play animation | <a href=\"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/images\/2017\/05\/170508_goes16_mesoscale_visible_infrared_spc_storm_reports_Colorado_hail_storm_anim.mp4\"><strong>MP4<\/strong><\/a>]<\/p><\/div><em>** The GOES-16 data posted on this page are preliminary, non-operational data and are undergoing testing. **<\/em><\/p>\n<p>Severe thunderstorms developed over eastern Colorado on <a href=\"http:\/\/www.wpc.ncep.noaa.gov\/dailywxmap\/index_20170508.html\"><strong>08 May 2017<\/strong><\/a>, producing large hail (especially in the Denver area: <a href=\"http:\/\/www.spc.noaa.gov\/climo\/reports\/170508_rpts.html\"><strong>SPC storm reports<\/strong><\/a> | <a href=\"http:\/\/www.weather.gov\/bou\/SevereWeatherReport8May2017\"><strong>NWS Boulder summary<\/strong><\/a>). Both GOES-16 <a href=\"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/archives\/23225\"><strong>Mesoscale Sectors<\/strong><\/a> were positioned over that region, providing 30-second interval images &#8212; Visible (<a href=\"http:\/\/www.goes-r.gov\/education\/docs\/ABI-bands-FS\/ABI%20Fact%20Sheet%20Band%202.pdf\"><strong>0.64 \u00b5m<\/strong><\/a>) and Infrared Window (<a href=\"http:\/\/www.goes-r.gov\/education\/docs\/ABI-bands-FS\/ABI_Band_13_FS_CLEAN_LW_IR_FINAL.pdf\"><strong>10.35 \u00b5m<\/strong><\/a>) images <em><strong>(above<\/strong><strong>)<\/strong><\/em> showed the convection in great detail, with SPC storm reports of hail size<em> (inches; H275 = 2.75 inches in<\/em> <em>diameter)<\/em> plotted in red\/cyan. Several of the storms exhibited well-defined overshooting tops in the Visible imagery, as well as &#8220;enhanced-V&#8221; and\/or cold-warm &#8220;thermal couplet&#8221; signatures on the Infrared imagery.<br \/>\n<center><\/p>\n<blockquote class=\"twitter-tweet\" data-lang=\"en\">\n<p dir=\"ltr\" lang=\"en\"><a href=\"https:\/\/twitter.com\/hashtag\/GOES16?src=hash\">#GOES16<\/a> 30-sec visible texture (blue (red) lines, weak (strong) overshooting) and IR cold spot (magenta) detects strong CO storms on 8 May <a href=\"https:\/\/t.co\/ApGrC0NLNH\">pic.twitter.com\/ApGrC0NLNH<\/a><\/p>\n<p>\u2014 Kris Bedka (@krisbedka) <a href=\"https:\/\/twitter.com\/krisbedka\/status\/862500802031702016\">May 11, 2017<\/a><\/p><\/blockquote>\n<p><script async src=\"\/\/platform.twitter.com\/widgets.js\" charset=\"utf-8\"><\/script><\/center><br \/>\nA comparison of 30-second interval GOES-16 Mesoscale Sector and 15-minute interval GOES-13<em> (GOES-East)<\/em> Routine Scan visible images<em><strong> (below<\/strong><strong>)<\/strong><\/em> demonstrated the clear advantage of rapid-scan imagery for monitoring convective development. Also note the degradation of <a href=\"https:\/\/en.wikipedia.org\/wiki\/GOES_13\"><strong>GOES-13<\/strong><\/a> visible imagery (the cloud features do not appear as bright), due to the age of that satellite &#8212; the GOES-R series <a href=\"http:\/\/www.goes-r.gov\/spacesegment\/abi.html\"><strong>ABI<\/strong><\/a> instrument features on-board visible detector calibration, so this type of visible image degradation over time will not occur.<\/p>\n<p><div style=\"width: 650px\" class=\"wp-caption aligncenter\"><a class=\"thumbnail\" href=\"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-content\/uploads\/sites\/5\/2017\/05\/170508_goes16_goes13_visible_Colorado_hail_storm_anim.gif\"><img loading=\"lazy\" decoding=\"async\" class=\"thumbnail\" src=\"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-content\/uploads\/sites\/5\/2017\/05\/G16_G13_VIS_CO_08MAY2017_958x638_B21_2017128_181457_0002PANELS.GIF\" alt=\"GOES-16 Visible (0.64 \u00b5m, left) and GOES-13 Visible (0.63 \u00b5m, right) images, with surface station identifiers in yellow [click to play animation | MP4]\" width=\"640\" height=\"480\" \/><\/a><p class=\"wp-caption-text\">GOES-16 Visible <em>(0.64 \u00b5m, left)<\/em> and GOES-13 Visible<em> (0.63 \u00b5m, right)<\/em> images, with surface station identifiers plotted in yellow [click to play animation | <a href=\"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-content\/uploads\/sites\/5\/2017\/05\/170508_goes16_goes13_visible_Colorado_hail_storm_anim.mp4\"><strong>MP4<\/strong><\/a>]<\/p><\/div>Suomi NPP VIIRS Visible (0.64 \u00b5m) and Infrared Window (11.45 \u00b5m) images<em><strong> (below; <\/strong>actual satellite overpass time<strong> <a href=\"http:\/\/www.ssec.wisc.edu\/datacenter\/npp\/archive\/NA\/2017_05(121-151)\/na2017_05_08_128_npp.gif\">1943 UTC<\/a>)<\/strong><\/em> provided a high-resolution (375 meter) view of the developing thunderstorms, about 17 minutes before the <a href=\"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-content\/uploads\/sites\/5\/2017\/05\/170508_1941utc_viirs_vis_spc_CO.jpg\"><strong>first report of hail<\/strong><\/a> northeast of Trinidad (KTAD) at 2000 UTC &#8212; a number of these storms exhibited cloud-top infrared brightness temperatures of -70 to -73\u00ba C <em>(black enhancement).<\/em> The <a href=\"https:\/\/ncc.nesdis.noaa.gov\/VIIRS\/\"><strong>VIIRS<\/strong><\/a> instrument will also be on the <a href=\"http:\/\/www.jpss.noaa.gov\/\"><strong>JPSS<\/strong><\/a> series of satellites, the first of which is scheduled to be launched in the 4th quarter of 2017.<\/p>\n<div style=\"width: 650px\" class=\"wp-caption aligncenter\"><a href=\"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-content\/uploads\/sites\/5\/2017\/05\/170508_1937utc_viirs_visible_infrared_Colorado_anim.gif\"><img loading=\"lazy\" decoding=\"async\" class=\"\" src=\"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-content\/uploads\/sites\/5\/2017\/05\/170508_1937utc_viirs_visible_infrared_Colorado_anim.gif\" alt=\"Suomi NPP VIIRS Visible (0.64 \u00b5m) and Infrared Window (11.45 \u00b5m) images [click to enlarge]\" width=\"640\" height=\"384\" \/><\/a><p class=\"wp-caption-text\">Suomi NPP VIIRS Visible (0.64 \u00b5m) and Infrared Window (11.45 \u00b5m) images, with surface station identifiers plotted in cyan [click to enlarge]<\/p><\/div>\n","protected":false},"excerpt":{"rendered":"<p>** The GOES-16 data posted on this page are preliminary, non-operational data and are undergoing testing. ** Severe thunderstorms developed over eastern Colorado on 08 May 2017, producing large hail (especially in the Denver area: SPC storm reports | NWS Boulder summary). Both GOES-16 Mesoscale Sectors were positioned over that region, providing 30-second interval images [&hellip;]<\/p>\n","protected":false},"author":18,"featured_media":23935,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[11,74,3,49,48],"tags":[],"class_list":["post-23932","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-goes-13","category-goes-16","category-severe-convection","category-suomi_npp","category-viirs"],"acf":[],"_links":{"self":[{"href":"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-json\/wp\/v2\/posts\/23932","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=23932"}],"version-history":[{"count":20,"href":"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-json\/wp\/v2\/posts\/23932\/revisions"}],"predecessor-version":[{"id":35282,"href":"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-json\/wp\/v2\/posts\/23932\/revisions\/35282"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-json\/wp\/v2\/media\/23935"}],"wp:attachment":[{"href":"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-json\/wp\/v2\/media?parent=23932"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-json\/wp\/v2\/categories?post=23932"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-json\/wp\/v2\/tags?post=23932"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}