{"id":10239,"date":"2012-05-02T19:05:34","date_gmt":"2012-05-02T19:05:34","guid":{"rendered":"http:\/\/cimss.ssec.wisc.edu\/satellite-blog\/?p=10239"},"modified":"2012-05-03T19:17:09","modified_gmt":"2012-05-03T19:17:09","slug":"undular-bore-in-northwestern-minnesota","status":"publish","type":"post","link":"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/archives\/10239","title":{"rendered":"Undular bore over northeastern North Dakota and northwestern Minnesota"},"content":{"rendered":"<div style=\"width: 490px\" class=\"wp-caption aligncenter\"><a class=\"thumbnail\" href=\"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-content\/uploads\/sites\/5\/2012\/04\/120502_g13_ir_vis_bore_anim.gif\"><img loading=\"lazy\" decoding=\"async\" class=\"  \" title=\"GOES-13 10.7 \u00c2\u00b5m IR channel + 0.63 \u00c2\u00b5m visible channel images (click image to play animation)\" src=\"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-content\/uploads\/sites\/5\/2012\/04\/Reg_Vis_Sat_20120502_1402.png\" alt=\"GOES-13 10.7 \u00c2\u00b5m IR channel + 0.63 \u00c2\u00b5m visible channel images (click image to play animation)\" width=\"480\" height=\"449\" \/><\/a><p class=\"wp-caption-text\">GOES-13 10.7 \u00c2\u00b5m IR channel + 0.63 \u00c2\u00b5m visible channel images (click image to play animation)<\/p><\/div>\n<p>Surface outflow from dissipating convection over southern Manitoba, Canada during the pre-dawn hours on <a title=\"02 May 2012 daily weather map\" href=\"http:\/\/www.hpc.ncep.noaa.gov\/dailywxmap\/index_20120502.html\"><strong>02 May 2012<\/strong><\/a> created an undular bore, which then propagated southeastward across northeastern North Dakota and northwestern Minnesota. AWIPS images of 4-km resolution GOES-13 10.7 \u00c2\u00b5m IR channel data followed by 1-km resolution GOES-13 0.63 \u00c2\u00b5m visible channel data after sunrise <em><strong>(above)<\/strong><\/em> showed the undular bore wave clouds. Surface winds associated with this convective outflow gusted to 30 knots in southern Manitoba at 12 UTC and 27 knots in northwestern Minnesota at 13 UTC.<\/p>\n<div style=\"width: 490px\" class=\"wp-caption aligncenter\"><a href=\"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-content\/uploads\/sites\/5\/2012\/04\/AVHRR_VOL_IR_20120502_1414.png\"><img loading=\"lazy\" decoding=\"async\" title=\"POES AVHRR 12.0 \u00c2\u00b5m IR image\" src=\"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-content\/uploads\/sites\/5\/2012\/04\/AVHRR_VOL_IR_20120502_1414.png\" alt=\"POES AVHRR 12.0 \u00c2\u00b5m IR image\" width=\"480\" height=\"449\" \/><\/a><p class=\"wp-caption-text\">POES AVHRR 12.0 \u00c2\u00b5m IR image<\/p><\/div>\n<p>An AWIPS image of 1-km resolution POES AVHRR 12.0 \u00c2\u00b5m data <em><strong>(above)<\/strong><\/em> indicated that the wave cloud top IR brightness temperature was in the +2 to +3 C range. According to the 12 UTC rawinsonde data from International Falls, Minnesota <em><strong>(below),<\/strong><\/em> a temperature inversion located between 683 hPa and 693 hPa was likely acting to duct the undular bore as it moved southeastward.<\/p>\n<div style=\"width: 489px\" class=\"wp-caption aligncenter\"><a href=\"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-content\/uploads\/sites\/5\/2012\/04\/KINL_20120502_1200.png\"><img loading=\"lazy\" decoding=\"async\" title=\"International Falls, Minnesota rawinsonde data (12 UTC)\" src=\"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-content\/uploads\/sites\/5\/2012\/04\/KINL_20120502_1200.png\" alt=\"International Falls, Minnesota rawinsonde data (12 UTC)\" width=\"479\" height=\"448\" \/><\/a><p class=\"wp-caption-text\">International Falls, Minnesota rawinsonde data (12 UTC)<\/p><\/div>\n","protected":false},"excerpt":{"rendered":"<p>Surface outflow from dissipating convection over southern Manitoba, Canada during the pre-dawn hours on 02 May 2012 created an undular bore, which then propagated southeastward across northeastern North Dakota and northwestern Minnesota. AWIPS images of 4-km resolution GOES-13 10.7 \u00c2\u00b5m IR channel data followed by 1-km resolution GOES-13 0.63 \u00c2\u00b5m visible channel data after sunrise [&hellip;]<\/p>\n","protected":false},"author":18,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[22,10,11,26],"tags":[],"class_list":["post-10239","post","type-post","status-publish","format-standard","hentry","category-avhrr","category-general-interpretation","category-goes-13","category-poes"],"acf":[],"_links":{"self":[{"href":"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-json\/wp\/v2\/posts\/10239","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=10239"}],"version-history":[{"count":6,"href":"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-json\/wp\/v2\/posts\/10239\/revisions"}],"predecessor-version":[{"id":10241,"href":"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-json\/wp\/v2\/posts\/10239\/revisions\/10241"}],"wp:attachment":[{"href":"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-json\/wp\/v2\/media?parent=10239"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-json\/wp\/v2\/categories?post=10239"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-json\/wp\/v2\/tags?post=10239"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}