{"id":10752,"date":"2015-05-12T15:43:45","date_gmt":"2015-05-12T20:43:45","guid":{"rendered":"http:\/\/hwt.nssl.noaa.gov\/ewp\/internal\/blog\/?p=10752"},"modified":"2016-10-03T17:54:08","modified_gmt":"2016-10-03T22:54:08","slug":"ci-probability-and-ground-clutter","status":"publish","type":"post","link":"https:\/\/inside.nssl.noaa.gov\/ewp\/2015\/05\/12\/ci-probability-and-ground-clutter\/","title":{"rendered":"CI  Probability and Ground Clutter"},"content":{"rendered":"<p>While doing a test of the GOES (West) CI Probability in southeast Idaho it showed probabilities anywhere from 60-70% (yellow shading in the right image).<\/p>\n<p><a href=\"https:\/\/inside.nssl.noaa.gov\/ewp\/wp-content\/uploads\/sites\/22\/2015\/05\/Screenshot-CAVEPIH-D2D-2.png\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-medium wp-image-10753\" src=\"http:\/\/hwt.nssl.noaa.gov\/ewp\/internal\/blog\/wp-content\/uploads\/2015\/05\/Screenshot-CAVEPIH-D2D-2-300x163.png\" alt=\"Screenshot-CAVE:PIH - D2D\" width=\"300\" height=\"163\" srcset=\"https:\/\/inside.nssl.noaa.gov\/ewp\/wp-content\/uploads\/sites\/22\/2015\/05\/Screenshot-CAVEPIH-D2D-2-300x163.png 300w, https:\/\/inside.nssl.noaa.gov\/ewp\/wp-content\/uploads\/sites\/22\/2015\/05\/Screenshot-CAVEPIH-D2D-2-768x418.png 768w, https:\/\/inside.nssl.noaa.gov\/ewp\/wp-content\/uploads\/sites\/22\/2015\/05\/Screenshot-CAVEPIH-D2D-2-1024x558.png 1024w, https:\/\/inside.nssl.noaa.gov\/ewp\/wp-content\/uploads\/sites\/22\/2015\/05\/Screenshot-CAVEPIH-D2D-2-500x272.png 500w, https:\/\/inside.nssl.noaa.gov\/ewp\/wp-content\/uploads\/sites\/22\/2015\/05\/Screenshot-CAVEPIH-D2D-2.png 1620w\" sizes=\"auto, (max-width: 767px) 100vw, (max-width: 1200px) 60vw, 720px\" \/><\/a><\/p>\n<p>The very next update the probabilities dropped to near zero (no yellow in the right image).\u00a0 However, the corresponding radar showed no storms with dBZ greater than about 25 nearby.\u00a0 It seems like ground clutter (a few pixels of 55-60 dBZ nearby) caused the CI Probability to improperly drop to near zero.<\/p>\n<p><a href=\"https:\/\/inside.nssl.noaa.gov\/ewp\/wp-content\/uploads\/sites\/22\/2015\/05\/Screenshot-CAVEPIH-D2D-21.png\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-medium wp-image-10754\" src=\"http:\/\/hwt.nssl.noaa.gov\/ewp\/internal\/blog\/wp-content\/uploads\/2015\/05\/Screenshot-CAVEPIH-D2D-21-300x161.png\" alt=\"Screenshot-CAVE:PIH - D2D -2\" width=\"300\" height=\"161\" srcset=\"https:\/\/inside.nssl.noaa.gov\/ewp\/wp-content\/uploads\/sites\/22\/2015\/05\/Screenshot-CAVEPIH-D2D-21-300x161.png 300w, https:\/\/inside.nssl.noaa.gov\/ewp\/wp-content\/uploads\/sites\/22\/2015\/05\/Screenshot-CAVEPIH-D2D-21-768x412.png 768w, https:\/\/inside.nssl.noaa.gov\/ewp\/wp-content\/uploads\/sites\/22\/2015\/05\/Screenshot-CAVEPIH-D2D-21-1024x549.png 1024w, https:\/\/inside.nssl.noaa.gov\/ewp\/wp-content\/uploads\/sites\/22\/2015\/05\/Screenshot-CAVEPIH-D2D-21-500x268.png 500w, https:\/\/inside.nssl.noaa.gov\/ewp\/wp-content\/uploads\/sites\/22\/2015\/05\/Screenshot-CAVEPIH-D2D-21.png 1623w\" sizes=\"auto, (max-width: 767px) 100vw, (max-width: 1200px) 60vw, 720px\" \/><\/a><\/p>\n<p>-Champion<\/p>\n<p>&nbsp;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>While doing a test of the GOES (West) CI Probability in southeast Idaho it showed probabilities anywhere from 60-70% (yellow shading in the right image). The very next update the&#8230; <\/p>\n<p class=\"link-more\"><a href=\"https:\/\/inside.nssl.noaa.gov\/ewp\/2015\/05\/12\/ci-probability-and-ground-clutter\/\" class=\"more-link\">Read more \u00bb<\/a><\/p>\n","protected":false},"author":136,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[7],"tags":[],"class_list":["post-10752","post","type-post","status-publish","format-standard","hentry","category-general"],"_links":{"self":[{"href":"https:\/\/inside.nssl.noaa.gov\/ewp\/wp-json\/wp\/v2\/posts\/10752","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/inside.nssl.noaa.gov\/ewp\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/inside.nssl.noaa.gov\/ewp\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/inside.nssl.noaa.gov\/ewp\/wp-json\/wp\/v2\/users\/136"}],"replies":[{"embeddable":true,"href":"https:\/\/inside.nssl.noaa.gov\/ewp\/wp-json\/wp\/v2\/comments?post=10752"}],"version-history":[{"count":1,"href":"https:\/\/inside.nssl.noaa.gov\/ewp\/wp-json\/wp\/v2\/posts\/10752\/revisions"}],"predecessor-version":[{"id":13993,"href":"https:\/\/inside.nssl.noaa.gov\/ewp\/wp-json\/wp\/v2\/posts\/10752\/revisions\/13993"}],"wp:attachment":[{"href":"https:\/\/inside.nssl.noaa.gov\/ewp\/wp-json\/wp\/v2\/media?parent=10752"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/inside.nssl.noaa.gov\/ewp\/wp-json\/wp\/v2\/categories?post=10752"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/inside.nssl.noaa.gov\/ewp\/wp-json\/wp\/v2\/tags?post=10752"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}