{"id":19326,"date":"2015-08-19T03:42:59","date_gmt":"2015-08-19T03:42:59","guid":{"rendered":"http:\/\/cimss.ssec.wisc.edu\/satellite-blog\/?p=19326"},"modified":"2015-08-19T21:26:51","modified_gmt":"2015-08-19T21:26:51","slug":"tornado-in-lake-geneva-wisconsin","status":"publish","type":"post","link":"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/archives\/19326","title":{"rendered":"Tornado in Lake Geneva, Wisconsin"},"content":{"rendered":"
\"GOES-14<\/a>

GOES-14 (left) and GOES-13 (right) 10.7 \u00b5m IR images. Lake Geneva Wisconsin is indicated by the small white box<\/strong> [click to play animated GIF]<\/p><\/div>\n

An EF-1 Tornado struck Lake Geneva, WI after sunset on 18 August 2015 (SPC Storm Reports<\/a>; NWS MKX report<\/a>). GOES-14 was in SRSO-R mode<\/a>, providing 1-minute imagery over the region; additionally, GOES-13 was in RSO mode, providing imagery about every 7 minutes. Unfortunately, GOES-14 requires two 15-minute breaks in scanning to perform housekeeping (Link<\/a>); one of those periods is from 0130-0145 UTC, 13 minutes before the tornado touchdown at 0158 UTC. (GOES-R will not require these 15-minute breaks). The animation above pauses during that housekeeping time; it also slows for the ten minutes surrounding 0158 UTC. (Click here<\/a> for an animation without the White Box signifying Lake Geneva).<\/p>\n

The 0158 UTC imagery from GOES-14 (paired with the 0155 UTC imagery from GOES-13 is shown below. An overshooting top that is associated with the tornado is apparent (northeast of Lake Geneva because of the parallax shift<\/a>). This overshoot is easily traceable in the 1-minute imagery, above, as it moves northeastward towards Lake Michigan. The feature also appears and can be tracked in GOES-13.<\/p>\n

\"GOES-14<\/a>

GOES-14 (left) and GOES-13 (right) 10.7 \u00b5m IR images. Lake Geneva Wisconsin is indicated by the small white box<\/strong> [click to enlarge]<\/p><\/div>\n

Automated detection of Overshooting Tops (and thermal couplets) (from this website<\/a>) showed a cluster of Overshooting Tops moving over southeast Wisconsin at the time of the tornado. The number of Overshoots detected jumped about an hour before the tornado touchdown.<\/p>\n

\"GOES-13<\/a>

GOES-13 Automated Detection of Overshooting Tops (blue) and Thermal Couplets (Red) 2330 UTC 18 August 2015 – 0225 19 August 2015<\/strong> [click to enlarge]<\/p><\/div>\n","protected":false},"excerpt":{"rendered":"

An EF-1 Tornado struck Lake Geneva, WI after sunset on 18 August 2015 (SPC Storm Reports; NWS MKX report). GOES-14 was in SRSO-R mode, providing 1-minute imagery over the region; additionally, GOES-13 was in RSO mode, providing imagery about every 7 minutes. Unfortunately, GOES-14 requires two 15-minute breaks in scanning to perform housekeeping (Link); one […]<\/p>\n","protected":false},"author":19,"featured_media":19330,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[11,40,3],"tags":[],"class_list":["post-19326","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-goes-13","category-goes-14","category-severe-convection"],"acf":[],"_links":{"self":[{"href":"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-json\/wp\/v2\/posts\/19326","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=19326"}],"version-history":[{"count":7,"href":"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-json\/wp\/v2\/posts\/19326\/revisions"}],"predecessor-version":[{"id":19334,"href":"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-json\/wp\/v2\/posts\/19326\/revisions\/19334"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-json\/wp\/v2\/media\/19330"}],"wp:attachment":[{"href":"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-json\/wp\/v2\/media?parent=19326"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-json\/wp\/v2\/categories?post=19326"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-json\/wp\/v2\/tags?post=19326"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}