{"id":16375,"date":"2019-05-08T15:09:23","date_gmt":"2019-05-08T20:09:23","guid":{"rendered":"https:\/\/inside.nssl.noaa.gov\/ewp\/?p=16375"},"modified":"2019-05-08T18:06:49","modified_gmt":"2019-05-08T23:06:49","slug":"surging-in-all-sky-lap-tpw","status":"publish","type":"post","link":"https:\/\/inside.nssl.noaa.gov\/ewp\/2019\/05\/08\/surging-in-all-sky-lap-tpw\/","title":{"rendered":"Surging in All-Sky LAP TPW"},"content":{"rendered":"<p>We&#8217;ve seen a couple of cases where the All-Sky LAP TPW surges back and forth unrealistically over a half hour intervals.\u00a0 Here are three frames 1\/2 hour apart from 1458 \/ 1528 \/ 1557 UTC 8 May 2019.\u00a0 Note the surging TPW over the eastern OK \/ northwest AR region.<\/p>\n<p>1458 UTC<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"wp-image-16378 aligncenter\" src=\"https:\/\/inside.nssl.noaa.gov\/ewp\/wp-content\/uploads\/sites\/22\/2019\/05\/006_ASL_001-900x658.png\" alt=\"\" width=\"408\" height=\"298\" srcset=\"https:\/\/inside.nssl.noaa.gov\/ewp\/wp-content\/uploads\/sites\/22\/2019\/05\/006_ASL_001-900x658.png 900w, https:\/\/inside.nssl.noaa.gov\/ewp\/wp-content\/uploads\/sites\/22\/2019\/05\/006_ASL_001-768x562.png 768w, https:\/\/inside.nssl.noaa.gov\/ewp\/wp-content\/uploads\/sites\/22\/2019\/05\/006_ASL_001-600x439.png 600w, https:\/\/inside.nssl.noaa.gov\/ewp\/wp-content\/uploads\/sites\/22\/2019\/05\/006_ASL_001.png 1068w\" sizes=\"auto, (max-width: 767px) 100vw, (max-width: 1200px) 60vw, 720px\" \/>1528 UTC<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"wp-image-16380 aligncenter\" src=\"https:\/\/inside.nssl.noaa.gov\/ewp\/wp-content\/uploads\/sites\/22\/2019\/05\/006_ASL_002-900x658.png\" alt=\"\" width=\"408\" height=\"298\" srcset=\"https:\/\/inside.nssl.noaa.gov\/ewp\/wp-content\/uploads\/sites\/22\/2019\/05\/006_ASL_002-900x658.png 900w, https:\/\/inside.nssl.noaa.gov\/ewp\/wp-content\/uploads\/sites\/22\/2019\/05\/006_ASL_002-768x562.png 768w, https:\/\/inside.nssl.noaa.gov\/ewp\/wp-content\/uploads\/sites\/22\/2019\/05\/006_ASL_002-600x439.png 600w, https:\/\/inside.nssl.noaa.gov\/ewp\/wp-content\/uploads\/sites\/22\/2019\/05\/006_ASL_002.png 1068w\" sizes=\"auto, (max-width: 767px) 100vw, (max-width: 1200px) 60vw, 720px\" \/><\/p>\n<p>1557 UTC<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"wp-image-16384 aligncenter\" src=\"https:\/\/inside.nssl.noaa.gov\/ewp\/wp-content\/uploads\/sites\/22\/2019\/05\/006_ASL_003-900x658.png\" alt=\"\" width=\"407\" height=\"297\" srcset=\"https:\/\/inside.nssl.noaa.gov\/ewp\/wp-content\/uploads\/sites\/22\/2019\/05\/006_ASL_003-900x658.png 900w, https:\/\/inside.nssl.noaa.gov\/ewp\/wp-content\/uploads\/sites\/22\/2019\/05\/006_ASL_003-768x562.png 768w, https:\/\/inside.nssl.noaa.gov\/ewp\/wp-content\/uploads\/sites\/22\/2019\/05\/006_ASL_003-600x439.png 600w, https:\/\/inside.nssl.noaa.gov\/ewp\/wp-content\/uploads\/sites\/22\/2019\/05\/006_ASL_003.png 1068w\" sizes=\"auto, (max-width: 767px) 100vw, (max-width: 1200px) 60vw, 720px\" \/><\/p>\n<p>1458 UTC Data type (yellow \/ gray cloudy)<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"wp-image-16389 aligncenter\" src=\"https:\/\/inside.nssl.noaa.gov\/ewp\/wp-content\/uploads\/sites\/22\/2019\/05\/006_DSC_001-900x658.png\" alt=\"\" width=\"398\" height=\"291\" srcset=\"https:\/\/inside.nssl.noaa.gov\/ewp\/wp-content\/uploads\/sites\/22\/2019\/05\/006_DSC_001-900x658.png 900w, https:\/\/inside.nssl.noaa.gov\/ewp\/wp-content\/uploads\/sites\/22\/2019\/05\/006_DSC_001-768x562.png 768w, https:\/\/inside.nssl.noaa.gov\/ewp\/wp-content\/uploads\/sites\/22\/2019\/05\/006_DSC_001-600x439.png 600w, https:\/\/inside.nssl.noaa.gov\/ewp\/wp-content\/uploads\/sites\/22\/2019\/05\/006_DSC_001.png 1068w\" sizes=\"auto, (max-width: 767px) 100vw, (max-width: 1200px) 60vw, 720px\" \/><\/p>\n<p>The data type indicates this is in a cloudy region.\u00a0 What&#8217;s odd is the middle frame is different, then the last frame is more like the first.\u00a0 Perhaps this is related to handling of the new 12 UTC GFS cycle?<\/p>\n<p>JohnF<\/p>\n<p>&nbsp;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>We&#8217;ve seen a couple of cases where the All-Sky LAP TPW surges back and forth unrealistically over a half hour intervals.\u00a0 Here are three frames 1\/2 hour apart from 1458&#8230; <\/p>\n<p class=\"link-more\"><a href=\"https:\/\/inside.nssl.noaa.gov\/ewp\/2019\/05\/08\/surging-in-all-sky-lap-tpw\/\" 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":[10],"tags":[50,46],"class_list":["post-16375","post","type-post","status-publish","format-standard","hentry","category-live-blogs","tag-all-sky-lap","tag-tpw"],"_links":{"self":[{"href":"https:\/\/inside.nssl.noaa.gov\/ewp\/wp-json\/wp\/v2\/posts\/16375","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=16375"}],"version-history":[{"count":1,"href":"https:\/\/inside.nssl.noaa.gov\/ewp\/wp-json\/wp\/v2\/posts\/16375\/revisions"}],"predecessor-version":[{"id":16394,"href":"https:\/\/inside.nssl.noaa.gov\/ewp\/wp-json\/wp\/v2\/posts\/16375\/revisions\/16394"}],"wp:attachment":[{"href":"https:\/\/inside.nssl.noaa.gov\/ewp\/wp-json\/wp\/v2\/media?parent=16375"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/inside.nssl.noaa.gov\/ewp\/wp-json\/wp\/v2\/categories?post=16375"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/inside.nssl.noaa.gov\/ewp\/wp-json\/wp\/v2\/tags?post=16375"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}