{"id":15419,"date":"2019-04-30T16:29:02","date_gmt":"2019-04-30T21:29:02","guid":{"rendered":"https:\/\/inside.nssl.noaa.gov\/ewp\/?p=15419"},"modified":"2019-04-30T17:40:06","modified_gmt":"2019-04-30T22:40:06","slug":"cpti-and-azshear","status":"publish","type":"post","link":"https:\/\/inside.nssl.noaa.gov\/ewp\/2019\/04\/30\/cpti-and-azshear\/","title":{"rendered":"CPTI and Azshear"},"content":{"rendered":"<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-medium wp-image-15423\" src=\"https:\/\/inside.nssl.noaa.gov\/ewp\/wp-content\/uploads\/sites\/22\/2019\/04\/Screenshot-from-2019-04-30-20-56-45-900x535.png\" alt=\"\" width=\"900\" height=\"535\" srcset=\"https:\/\/inside.nssl.noaa.gov\/ewp\/wp-content\/uploads\/sites\/22\/2019\/04\/Screenshot-from-2019-04-30-20-56-45-900x535.png 900w, https:\/\/inside.nssl.noaa.gov\/ewp\/wp-content\/uploads\/sites\/22\/2019\/04\/Screenshot-from-2019-04-30-20-56-45-768x456.png 768w, https:\/\/inside.nssl.noaa.gov\/ewp\/wp-content\/uploads\/sites\/22\/2019\/04\/Screenshot-from-2019-04-30-20-56-45-600x356.png 600w, https:\/\/inside.nssl.noaa.gov\/ewp\/wp-content\/uploads\/sites\/22\/2019\/04\/Screenshot-from-2019-04-30-20-56-45.png 1431w\" sizes=\"auto, (max-width: 767px) 100vw, (max-width: 1200px) 60vw, 720px\" \/><\/p>\n<p>Tracking this northern most SC @ 1926 UTC prior to tornadogenesis.\u00a0 Azshear 0-2 km product did a nice job highlighting shear with developing storm very early on in storm evolution and was very persistent in highlighting area of shear throughout.\u00a0 Temporal continuity was very good.\u00a0 Lower two panels are 80 and 110 mph intensity probabilities.\u00a0 Used this 4-panel to monitor evolution.\u00a0 Also displayed is legacy mesocyclone (upper-right), DMD (lower right) and XDMD l(lower left).\u00a0 This SC also exhibited well-organized ZDR arc and KDP foot (not shown) that whose centroids were normal to storm motion suggesting MC intensification was likely.<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-medium wp-image-15429\" src=\"https:\/\/inside.nssl.noaa.gov\/ewp\/wp-content\/uploads\/sites\/22\/2019\/04\/Screenshot-from-2019-04-30-21-04-56-900x531.png\" alt=\"\" width=\"900\" height=\"531\" srcset=\"https:\/\/inside.nssl.noaa.gov\/ewp\/wp-content\/uploads\/sites\/22\/2019\/04\/Screenshot-from-2019-04-30-21-04-56-900x531.png 900w, https:\/\/inside.nssl.noaa.gov\/ewp\/wp-content\/uploads\/sites\/22\/2019\/04\/Screenshot-from-2019-04-30-21-04-56-768x453.png 768w, https:\/\/inside.nssl.noaa.gov\/ewp\/wp-content\/uploads\/sites\/22\/2019\/04\/Screenshot-from-2019-04-30-21-04-56-600x354.png 600w, https:\/\/inside.nssl.noaa.gov\/ewp\/wp-content\/uploads\/sites\/22\/2019\/04\/Screenshot-from-2019-04-30-21-04-56.png 1437w\" sizes=\"auto, (max-width: 767px) 100vw, (max-width: 1200px) 60vw, 720px\" \/><\/p>\n<p>1938 utc Azshear still showing strong signal with CPTI gradually increasing to near 60%.\u00a0 ProbTor increased to 78% as well.\u00a0 DMD, XDMD and MD not showing much and did not seem to be very helpful.<\/p>\n<p>&nbsp;<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-medium wp-image-15433\" src=\"https:\/\/inside.nssl.noaa.gov\/ewp\/wp-content\/uploads\/sites\/22\/2019\/04\/Screenshot-from-2019-04-30-21-13-46-900x529.png\" alt=\"\" width=\"900\" height=\"529\" srcset=\"https:\/\/inside.nssl.noaa.gov\/ewp\/wp-content\/uploads\/sites\/22\/2019\/04\/Screenshot-from-2019-04-30-21-13-46-900x529.png 900w, https:\/\/inside.nssl.noaa.gov\/ewp\/wp-content\/uploads\/sites\/22\/2019\/04\/Screenshot-from-2019-04-30-21-13-46-768x451.png 768w, https:\/\/inside.nssl.noaa.gov\/ewp\/wp-content\/uploads\/sites\/22\/2019\/04\/Screenshot-from-2019-04-30-21-13-46-600x353.png 600w, https:\/\/inside.nssl.noaa.gov\/ewp\/wp-content\/uploads\/sites\/22\/2019\/04\/Screenshot-from-2019-04-30-21-13-46.png 1446w\" sizes=\"auto, (max-width: 767px) 100vw, (max-width: 1200px) 60vw, 720px\" \/><\/p>\n<p>CPTI was insightful with increasing probabilities of tornado intensity probabilities at higher speeds (110 mph lower right).\u00a0 \u00a0Note that XDMD was also indicating MXRV of 26.<\/p>\n<p>&nbsp;<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-medium wp-image-15437\" src=\"https:\/\/inside.nssl.noaa.gov\/ewp\/wp-content\/uploads\/sites\/22\/2019\/04\/Screenshot-from-2019-04-30-21-18-50-900x525.png\" alt=\"\" width=\"900\" height=\"525\" srcset=\"https:\/\/inside.nssl.noaa.gov\/ewp\/wp-content\/uploads\/sites\/22\/2019\/04\/Screenshot-from-2019-04-30-21-18-50-900x525.png 900w, https:\/\/inside.nssl.noaa.gov\/ewp\/wp-content\/uploads\/sites\/22\/2019\/04\/Screenshot-from-2019-04-30-21-18-50-768x448.png 768w, https:\/\/inside.nssl.noaa.gov\/ewp\/wp-content\/uploads\/sites\/22\/2019\/04\/Screenshot-from-2019-04-30-21-18-50-600x350.png 600w, https:\/\/inside.nssl.noaa.gov\/ewp\/wp-content\/uploads\/sites\/22\/2019\/04\/Screenshot-from-2019-04-30-21-18-50.png 1443w\" sizes=\"auto, (max-width: 767px) 100vw, (max-width: 1200px) 60vw, 720px\" \/><\/p>\n<p>1448 UTC &#8211; would occasionally see dual maxes in AZShear and CPTI products that was a bit of an issue at times.<\/p>\n<p>CPTI 110 probablities up to ~ 75 % at this time (lower right)<\/p>\n<p>Overall&#8230;0-2 km Azshear was quite helpful in quickly grabbing attention to areas of concern.\u00a0 0-2 km product was temporally very consistent.\u00a0 Its location relative to developing Mesocyclone was typically off&#8230;but still very useful.\u00a0 \u00a0 XDMD, did seem to perform better than legacy DMD products but not much at least with this storm.\u00a0 \u00a0Early in storm evolution, examining ZDR\/KDP centroids relative to storm motion was also helpful as a reality check on MC intensification and increasing SRH with this particular storm.\u00a0 Bottom line was generally pleased wiith\u00a0 AzShear and CPTI performance for this storm. &#8211; Quik TWIP<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Tracking this northern most SC @ 1926 UTC prior to tornadogenesis.\u00a0 Azshear 0-2 km product did a nice job highlighting shear with developing storm very early on in storm evolution&#8230; <\/p>\n<p class=\"link-more\"><a href=\"https:\/\/inside.nssl.noaa.gov\/ewp\/2019\/04\/30\/cpti-and-azshear\/\" class=\"more-link\">Read more \u00bb<\/a><\/p>\n","protected":false},"author":139,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[44,10],"tags":[54,53],"class_list":["post-15419","post","type-post","status-publish","format-standard","hentry","category-azshear","category-live-blogs","tag-azshear","tag-cpti"],"_links":{"self":[{"href":"https:\/\/inside.nssl.noaa.gov\/ewp\/wp-json\/wp\/v2\/posts\/15419","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\/139"}],"replies":[{"embeddable":true,"href":"https:\/\/inside.nssl.noaa.gov\/ewp\/wp-json\/wp\/v2\/comments?post=15419"}],"version-history":[{"count":2,"href":"https:\/\/inside.nssl.noaa.gov\/ewp\/wp-json\/wp\/v2\/posts\/15419\/revisions"}],"predecessor-version":[{"id":15450,"href":"https:\/\/inside.nssl.noaa.gov\/ewp\/wp-json\/wp\/v2\/posts\/15419\/revisions\/15450"}],"wp:attachment":[{"href":"https:\/\/inside.nssl.noaa.gov\/ewp\/wp-json\/wp\/v2\/media?parent=15419"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/inside.nssl.noaa.gov\/ewp\/wp-json\/wp\/v2\/categories?post=15419"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/inside.nssl.noaa.gov\/ewp\/wp-json\/wp\/v2\/tags?post=15419"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}