{"id":26847,"date":"2018-01-25T23:59:13","date_gmt":"2018-01-25T23:59:13","guid":{"rendered":"http:\/\/cimss.ssec.wisc.edu\/satellite-blog\/?p=26847"},"modified":"2018-01-29T04:21:18","modified_gmt":"2018-01-29T04:21:18","slug":"tornado-near-eureka-california","status":"publish","type":"post","link":"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/archives\/26847","title":{"rendered":"Tornado near Eureka, California"},"content":{"rendered":"<p><center><\/p>\n<blockquote class=\"twitter-tweet\" data-lang=\"en\">\n<p lang=\"en\" dir=\"ltr\">A waterspout developed over Humboldt Bay Thursday, January 25th around 4:40 pm and moved through the Woodley Island Marina, dissipating only a  minute or so later. Security cameras captured the  waterspout moving through the marina onto the island. <a href=\"https:\/\/t.co\/EIgAPN2BTE\">https:\/\/t.co\/EIgAPN2BTE<\/a><\/p>\n<p>&mdash; NWS Eureka (@NWSEureka) <a href=\"https:\/\/twitter.com\/NWSEureka\/status\/957046272120279040?ref_src=twsrc%5Etfw\">January 27, 2018<\/a><\/p><\/blockquote>\n<p><script async src=\"https:\/\/platform.twitter.com\/widgets.js\" charset=\"utf-8\"><\/script><br \/>\n<\/center><\/p>\n<p>A waterspout moved inland near the NWS Eureka forecast office during the late afternoon hours on <a href=\"http:\/\/www.wpc.ncep.noaa.gov\/dailywxmap\/index_20180125.html\"><strong>25 January 2018<\/strong><\/a>. The brief tornado caused some EF-0 damage (interestingly, it was the <a href=\"http:\/\/www.spc.noaa.gov\/climo\/reports\/180125_rpts.html\"><strong>only report<\/strong><\/a> of severe weather in the US that day, and the first tornado in the Eureka forecast area <strong><a href=\"https:\/\/twitter.com\/NWSEureka\/status\/957046692079120385\">since 1998<\/a><\/a><\/strong>).<\/p>\n<p>A comparison of GOES-16<em> (GOES-East)<\/em> &#8220;Red&#8221; Visible (<a href=\"http:\/\/cimss.ssec.wisc.edu\/goes\/OCLOFactSheetPDFs\/ABIQuickGuide_Band02.pdf\"><strong>0.64 \u00b5m<\/strong><\/a>) and &#8220;Clean&#8221; Infrared Window (<a href=\"http:\/\/cimss.ssec.wisc.edu\/goes\/OCLOFactSheetPDFs\/ABIQuickGuide_Band13.pdf\"><strong>10.3 \u00b5m<\/strong><\/a>) images<em><strong> (below)<\/strong><\/em> showed the line of convection as it moved across the area (Eureka and the location of the 0040-0041 UTC tornado are a few miles south-southwest of the airport KACV) &#8212; the coldest cloud-top infrared brightness temperatures on the 0037 UTC and 0042 UTC GOES-16 images were -30.7\u00baC<em> (dark blue color enhancement)<\/em>. Note: there were no western US images available from GOES-15 <em>(GOES-West)<\/em> between 0030 and 0100 UTC, due to a routine &#8220;New Day Schedule Transition&#8221; and a 0051 UTC Southern Hemisphere scan.<\/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\/2018\/01\/180125_goes16_visible_infrared_Eureka_CA_tornado_anim.gif\"><img loading=\"lazy\" decoding=\"async\" class=\"thumbnail\" src=\"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-content\/uploads\/sites\/5\/2018\/01\/G16_VIS_IR_ACV_TORNADO_25JAN2018_960x640_B213_2018026_004223_0002PANELS_00009.GIF\" alt=\"GOES-16 \" width=\"640\" height=\"479\" \/><\/a><p class=\"wp-caption-text\">GOES-16 &#8220;Red&#8221; Visible <em>(0.64 \u00b5m, left)<\/em> and &#8220;Clean&#8221; Infrared Window <em>(10.3 \u00b5m, right)<\/em> images, with plots of hourly surface reports [click to play animation]<\/p><\/div>There was an overpass of the NOAA-19 satellite about 2 hours prior to the Eureka tornado, at 2251 UTC. If we compare the NOAA-19 Visible (0.63 \u00b5m) image to the corresponding GOES-16 Visible (0.64 \u00b5m) image<em><strong> (below),<\/strong><\/em> a <a href=\"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/archives\/217\"><strong>parallax<\/strong><\/a> shift to the west is evident with GOES-16 (which was scanning that same scene only 24 seconds later than NOAA-19: 22:52:23 UTC vs 22:51:59 UTC).<\/p>\n<p><div style=\"width: 650px\" class=\"wp-caption aligncenter\"><a href=\"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-content\/uploads\/sites\/5\/2018\/01\/180126_0052utc_noaa19_goes16_visible_Eureka_CA_anim.gif\"><img loading=\"lazy\" decoding=\"async\" class=\"\" src=\"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-content\/uploads\/sites\/5\/2018\/01\/180126_0052utc_noaa19_goes16_visible_Eureka_CA_anim.gif\" alt=\"NOAA-19 and GOES-16 Visible images at 2252 UTC, with plots of 23 UTC surface reports [click to enlarge]\" width=\"640\" height=\"480\" \/><\/a><p class=\"wp-caption-text\">NOAA-19 and GOES-16 Visible images at 2252 UTC, with plots of 23 UTC surface reports [click to enlarge]<\/p><\/div>In the corresponding Infrared Window images from NOAA-19 (10.8 \u00b5m) and GOES-16 (10.3 \u00b5m)<em><strong> (below),<\/strong><\/em> the parallax shift was also apparent &#8212; and the coldest cloud-top infrared brightness temperatures associated with the convection just northwest of KACV were -36.2\u00baC and -35.2\u00baC, respectively. Given the very high viewing angle for GOES-16<em> (about 67 degrees over Eureka),<\/em> the qualitative and quantitative satellite presentation compared quite favorably to that seen from the more direct overpass of NOAA-19.<\/p>\n<p><div style=\"width: 650px\" class=\"wp-caption aligncenter\"><a href=\"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-content\/uploads\/sites\/5\/2018\/01\/180126_0052utc_noaa19_goes16_infrared_Eureka_CA_anim.gif\"><img loading=\"lazy\" decoding=\"async\" class=\"\" src=\"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-content\/uploads\/sites\/5\/2018\/01\/180126_0052utc_noaa19_goes16_infrared_Eureka_CA_anim.gif\" alt=\"NOAA-19 and GOES-16 Infrared Window images at 2252 UTC, with plots of 23 UTC surface reports [click to enlarge]\" width=\"640\" height=\"480\" \/><\/a><p class=\"wp-caption-text\">NOAA-19 and GOES-16 Infrared Window images at 2252 UTC, with plots of 23 UTC surface reports [click to enlarge]<\/p><\/div>As mentioned in the afternoon <a href=\"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-content\/uploads\/sites\/5\/2018\/01\/180125_keka_afd.text\"><strong>Area Forecast Discussion<\/strong><\/a>, offshore Sea Surface Temperature (SST) values were in the 50-55\u00baF range; this was also seen in a comparison of the nighttime and daytime MODIS SST product <em><strong>(below)<\/strong><\/em>. With the presence of cold air aloft and relatively warm water at the surface, the lower troposphere was unstable enough to support the development and growth of showers and thunderstorms.<\/p>\n<div style=\"width: 650px\" class=\"wp-caption aligncenter\"><a href=\"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-content\/uploads\/sites\/5\/2018\/01\/180125_modis_sst_anim.gif\"><img loading=\"lazy\" decoding=\"async\" class=\"\" src=\"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-content\/uploads\/sites\/5\/2018\/01\/180125_modis_sst_anim.gif\" alt=\"MODIS Sea Surface Temperature product [click to enlarge]\" width=\"640\" height=\"392\" \/><\/a><p class=\"wp-caption-text\">MODIS Sea Surface Temperature product [click to enlarge]<\/p><\/div>\n","protected":false},"excerpt":{"rendered":"<p>A waterspout developed over Humboldt Bay Thursday, January 25th around 4:40 pm and moved through the Woodley Island Marina, dissipating only a minute or so later. Security cameras captured the waterspout moving through the marina onto the island. https:\/\/t.co\/EIgAPN2BTE &mdash; NWS Eureka (@NWSEureka) January 27, 2018 A waterspout moved inland near the NWS Eureka forecast [&hellip;]<\/p>\n","protected":false},"author":18,"featured_media":26857,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[22,74,12,26,3],"tags":[],"class_list":["post-26847","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-avhrr","category-goes-16","category-modis","category-poes","category-severe-convection"],"acf":[],"_links":{"self":[{"href":"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-json\/wp\/v2\/posts\/26847","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=26847"}],"version-history":[{"count":13,"href":"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-json\/wp\/v2\/posts\/26847\/revisions"}],"predecessor-version":[{"id":26849,"href":"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-json\/wp\/v2\/posts\/26847\/revisions\/26849"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-json\/wp\/v2\/media\/26857"}],"wp:attachment":[{"href":"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-json\/wp\/v2\/media?parent=26847"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-json\/wp\/v2\/categories?post=26847"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-json\/wp\/v2\/tags?post=26847"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}