{"id":41819,"date":"2021-08-09T23:59:00","date_gmt":"2021-08-09T23:59:00","guid":{"rendered":"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/?p=41819"},"modified":"2021-08-13T16:40:41","modified_gmt":"2021-08-13T16:40:41","slug":"severe-weather-over-northeast-illinois","status":"publish","type":"post","link":"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/archives\/41819","title":{"rendered":"Severe weather over northeast Illinois"},"content":{"rendered":"\n<figure class=\"wp-block-video\"><video height=\"720\" style=\"aspect-ratio: 960 \/ 720;\" width=\"960\" controls loop muted src=\"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-content\/uploads\/sites\/5\/2021\/08\/GOES-16_ABI_RadM2_C02_20210809_1900_to_20210810_0040_McHenrySevereAnnot2anim.mp4\"><\/video><figcaption>GOES-16 &#8220;Red&#8221;Visible (0.64 \u00b5m) Imagery, 1900 UTC 9 August &#8211; 0040 UTC 10 August 2021<\/figcaption><\/figure>\n\n\n\n<p>Severe thunderstorms developed over northeast Illinois late in the afternoon on 9 August, and a series of tornadoes resulted.  Storm Reports (from the Storm Prediction Center) are shown below.  The mp4 animation above (click <a href=\"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-content\/uploads\/sites\/5\/2021\/08\/GOES-16_ABI_RadM2_C02_20210809_1900_to_20210810_0040_McHenrySevereAnnot2anim.gif\">here <\/a>for a large animated gif) shows 1-minute GOES-16 Mesoscale Sector 2 visible imagery (0.64 \u00b5m) from 1900 UTC on 9 August through 0040 UTC on 10 August.  The active convection is apparent.<\/p>\n\n\n\n<figure class=\"wp-block-image size-full is-resized\"><a href=\"https:\/\/www.spc.noaa.gov\/climo\/reports\/210809_rpts.html\"><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-content\/uploads\/sites\/5\/2021\/08\/SPCStormReports.png\" alt=\"\" class=\"wp-image-41821\" width=\"582\" height=\"408\" srcset=\"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-content\/uploads\/sites\/5\/2021\/08\/SPCStormReports.png 582w, https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-content\/uploads\/sites\/5\/2021\/08\/SPCStormReports-300x210.png 300w\" sizes=\"auto, (max-width: 582px) 100vw, 582px\" \/><\/a><figcaption>SPC Storm Reports from 9 August 2021 (Click to view site at SPC)<\/figcaption><\/figure>\n\n\n\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\">1-minute Mesoscale Domain Sector <a href=\"https:\/\/twitter.com\/hashtag\/GOES16?src=hash&amp;ref_src=twsrc%5Etfw\">#GOES16<\/a>\/<a href=\"https:\/\/twitter.com\/hashtag\/GOESeast?src=hash&amp;ref_src=twsrc%5Etfw\">#GOESeast<\/a> Visible &amp; Infrared images + plots of SPC Storm Reports show thunderstorms that produced several tornadoes across southern <a href=\"https:\/\/twitter.com\/hashtag\/WIwx?src=hash&amp;ref_src=twsrc%5Etfw\">#WIwx<\/a> and northern <a href=\"https:\/\/twitter.com\/hashtag\/ILwx?src=hash&amp;ref_src=twsrc%5Etfw\">#ILwx<\/a> yesterday: <a href=\"https:\/\/t.co\/PEMYGXI6wq\">https:\/\/t.co\/PEMYGXI6wq<\/a> <a href=\"https:\/\/twitter.com\/NWSMilwaukee?ref_src=twsrc%5Etfw\">@NWSMilwaukee<\/a> <a href=\"https:\/\/twitter.com\/NWSQuadCities?ref_src=twsrc%5Etfw\">@NWSQuadCities<\/a> <a href=\"https:\/\/twitter.com\/NWSChicago?ref_src=twsrc%5Etfw\">@NWSChicago<\/a> <a href=\"https:\/\/t.co\/ZujqvLIqE7\">pic.twitter.com\/ZujqvLIqE7<\/a><\/p>&mdash; Scott Bachmeier (@CIMSS_Satellite) <a href=\"https:\/\/twitter.com\/CIMSS_Satellite\/status\/1425195091719823360?ref_src=twsrc%5Etfw\">August 10, 2021<\/a><\/blockquote><script async src=\"https:\/\/platform.twitter.com\/widgets.js\" charset=\"utf-8\"><\/script>\n<\/div><\/figure>\n\n\n\n<p>Part of the region hit by severe weather is in a persistent drought, as shown below (an image from <a href=\"https:\/\/droughtmonitor.unl.edu\/\">this website<\/a>).  Rains that accompanied the severe weather provided some drought relief.  (Click <a href=\"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-content\/uploads\/sites\/5\/2021\/08\/CMORPHHourlyRains_1800_9AugTO_0200_10AugRealEarth%e2%84%a2.mp4\">here <\/a>for hourly CMORPH2 precipitation estimates from <a rel=\"noreferrer noopener\" href=\"https:\/\/realearth.ssec.wisc.edu\" target=\"_blank\">RealEarth<\/a>)<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><a href=\"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-content\/uploads\/sites\/5\/2021\/08\/DroughtMonitor3August2021.png\"><img loading=\"lazy\" decoding=\"async\" width=\"687\" height=\"753\" src=\"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-content\/uploads\/sites\/5\/2021\/08\/DroughtMonitor3August2021.png\" alt=\"\" class=\"wp-image-41838\" srcset=\"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-content\/uploads\/sites\/5\/2021\/08\/DroughtMonitor3August2021.png 687w, https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-content\/uploads\/sites\/5\/2021\/08\/DroughtMonitor3August2021-274x300.png 274w\" sizes=\"auto, (max-width: 687px) 100vw, 687px\" \/><\/a><figcaption>Drought Intensity over the Midwestern United States, 3 August 2021 (Click to enlarge).  Portions of southeast Wisconsin and northeast Illinois are under Severe Drought (Orange Enhancement)<\/figcaption><\/figure>\n\n\n\n<hr class=\"wp-block-separator\" \/>\n\n\n\n<p>RCM3 (RADARSAT Constellation Mission 3) Synthetic Aperture Radar (SAR) winds from a 2340 UTC overpass on 9 August (from<a href=\"https:\/\/www.star.nesdis.noaa.gov\/socd\/mecb\/sar\/AKDEMO_products\/APL_winds\/wind_images_nic\/sarwinds_daily_now.html?date=20210809\"> this site<\/a>) show a wind feature over Lake Michigan associated with the convection.  These wind estimates might be affected by ice within the glaciated clouds<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><a href=\"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-content\/uploads\/sites\/5\/2021\/08\/RCM3_SHUB_2021_08_09_23_40_00_0681867600_087.62W_43.27N_VV_C5_GFS05CDF_wind.png\"><img loading=\"lazy\" decoding=\"async\" width=\"911\" height=\"1024\" src=\"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-content\/uploads\/sites\/5\/2021\/08\/RCM3_SHUB_2021_08_09_23_40_00_0681867600_087.62W_43.27N_VV_C5_GFS05CDF_wind-911x1024.png\" alt=\"\" class=\"wp-image-41823\" srcset=\"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-content\/uploads\/sites\/5\/2021\/08\/RCM3_SHUB_2021_08_09_23_40_00_0681867600_087.62W_43.27N_VV_C5_GFS05CDF_wind-911x1024.png 911w, https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-content\/uploads\/sites\/5\/2021\/08\/RCM3_SHUB_2021_08_09_23_40_00_0681867600_087.62W_43.27N_VV_C5_GFS05CDF_wind-267x300.png 267w, https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-content\/uploads\/sites\/5\/2021\/08\/RCM3_SHUB_2021_08_09_23_40_00_0681867600_087.62W_43.27N_VV_C5_GFS05CDF_wind-768x864.png 768w, https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-content\/uploads\/sites\/5\/2021\/08\/RCM3_SHUB_2021_08_09_23_40_00_0681867600_087.62W_43.27N_VV_C5_GFS05CDF_wind-1366x1536.png 1366w, https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-content\/uploads\/sites\/5\/2021\/08\/RCM3_SHUB_2021_08_09_23_40_00_0681867600_087.62W_43.27N_VV_C5_GFS05CDF_wind.png 1800w\" sizes=\"auto, (max-width: 911px) 100vw, 911px\" \/><\/a><figcaption>RCM3 SAR esimates of wind speed, 2340 UTC on 9 August 2021 (Click to enlarge)<\/figcaption><\/figure>\n","protected":false},"excerpt":{"rendered":"<p>Severe thunderstorms developed over northeast Illinois late in the afternoon on 9 August, and a series of tornadoes resulted. Storm Reports (from the Storm Prediction Center) are shown below. The mp4 animation above (click here for a large animated gif) shows 1-minute GOES-16 Mesoscale Sector 2 visible imagery (0.64 \u00b5m) from 1900 UTC on 9 [&hellip;]<\/p>\n","protected":false},"author":19,"featured_media":41833,"comment_status":"closed","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[74,104,3],"tags":[],"class_list":["post-41819","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-goes-16","category-sar","category-severe-convection"],"acf":[],"_links":{"self":[{"href":"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-json\/wp\/v2\/posts\/41819","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\/19"}],"replies":[{"embeddable":true,"href":"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-json\/wp\/v2\/comments?post=41819"}],"version-history":[{"count":17,"href":"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-json\/wp\/v2\/posts\/41819\/revisions"}],"predecessor-version":[{"id":41947,"href":"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-json\/wp\/v2\/posts\/41819\/revisions\/41947"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-json\/wp\/v2\/media\/41833"}],"wp:attachment":[{"href":"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-json\/wp\/v2\/media?parent=41819"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-json\/wp\/v2\/categories?post=41819"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-json\/wp\/v2\/tags?post=41819"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}