{"id":57622,"date":"2024-03-11T14:18:00","date_gmt":"2024-03-11T14:18:00","guid":{"rendered":"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/?p=57622"},"modified":"2024-03-11T19:37:52","modified_gmt":"2024-03-11T19:37:52","slug":"baroclinic-leaf-feature-over-the-hawaiian-islands","status":"publish","type":"post","link":"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/archives\/57622","title":{"rendered":"Baroclinic leaf feature over the Hawai&#8217;ian Islands"},"content":{"rendered":"\n<figure class=\"wp-block-video\"><video height=\"904\" style=\"aspect-ratio: 1340 \/ 904;\" width=\"1340\" controls loop src=\"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-content\/uploads\/sites\/5\/2024\/03\/goeswest_abi_radf_true_color_night_s20240311091021_e20240311140021_f30.mp4\"><\/video><figcaption class=\"wp-element-caption\">Night MIcrophysics RGB, 0910-1140 UTC on 11 March 2024<\/figcaption><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\"><a href=\"https:\/\/geosphere.ssec.wisc.edu\/#playing:true;coordinate:-2037721,1937821;zoom:4;satellite:goeswest;product:%5B%7B%22n%22:%22true_color_night%22,%22a%22:1%7D%5D;map_grid:on;num_frames:30;start_time:2024-03-11T09:10:00Z;timeframe:Start%20Time;\">CSPP Geosphere imagery<\/a> (Night Microphysics RGB), above, shows baroclinic leaf over the Hawaiian islands that is suggestive of the early stages of a developing mid-latitude cyclone.  Air Mass RGB over roughly the same time, below (<a href=\"https:\/\/www.star.nesdis.noaa.gov\/goes\/sector.php?sat=G18&amp;sector=tpw\">source<\/a>), is also suggestive of a developing cyclone.  The orange values in the RGB to the west and south of Hawai&#8217;i can denote air that is rich in Potential Vorticity,<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"900\" height=\"540\" src=\"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-content\/uploads\/sites\/5\/2024\/03\/20240710820-20240711640-GOES18-ABI-TPW-AirMass-900x540-1.gif\" alt=\"\" class=\"wp-image-57624\"\/><figcaption class=\"wp-element-caption\">GOES-West airmass RGB imagery 0820 &#8211; 1640 UTC on 11 March 2024 (Click to enlarge)<\/figcaption><\/figure>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"628\" src=\"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-content\/uploads\/sites\/5\/2024\/03\/gfs_pv355K_cpac_1200UTC_11March2024.png\" alt=\"\" class=\"wp-image-57625\" srcset=\"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-content\/uploads\/sites\/5\/2024\/03\/gfs_pv355K_cpac_1200UTC_11March2024.png 1024w, https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-content\/uploads\/sites\/5\/2024\/03\/gfs_pv355K_cpac_1200UTC_11March2024-300x184.png 300w, https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-content\/uploads\/sites\/5\/2024\/03\/gfs_pv355K_cpac_1200UTC_11March2024-768x471.png 768w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><figcaption class=\"wp-element-caption\">Cyclonic PV Units on the 355K Isentropic surface, 1200 UTC on 11 March 2024 (Click to enlarge)<\/figcaption><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">Imagery from the handy <a href=\"https:\/\/www.tropicaltidbits.com\">TropicalTidbits website<\/a>, <a href=\"https:\/\/www.tropicaltidbits.com\/analysis\/models\/?model=gfs&amp;region=cpac&amp;pkg=pv355K&amp;runtime=2024031112&amp;fh=0\">above<\/a> and <a href=\"https:\/\/www.tropicaltidbits.com\/analysis\/models\/?model=gfs&amp;region=namer&amp;pkg=DTpres&amp;runtime=2024031112&amp;fh=0\">below<\/a> at 1200 UTC on 11 March 2024, show signatures consistent with air rich in Potential Vorticity to the west of the Hawai&#8217;ian Islands.<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"638\" src=\"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-content\/uploads\/sites\/5\/2024\/03\/gfs_DTpres_namer_1200UTC_11March2024.png\" alt=\"\" class=\"wp-image-57626\" srcset=\"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-content\/uploads\/sites\/5\/2024\/03\/gfs_DTpres_namer_1200UTC_11March2024.png 1024w, https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-content\/uploads\/sites\/5\/2024\/03\/gfs_DTpres_namer_1200UTC_11March2024-300x187.png 300w, https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-content\/uploads\/sites\/5\/2024\/03\/gfs_DTpres_namer_1200UTC_11March2024-768x479.png 768w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><figcaption class=\"wp-element-caption\">Pressure on the 2 PVU surface, 1200 UTC on 11 March 2024 (Click to enlarge)<\/figcaption><\/figure>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<p class=\"wp-block-paragraph\">How much precipitation is associated with this extensive cirrus shield?   Direct Broadcast data <a href=\"http:\/\/soest-hcc1.hcc.hawaii.edu\/browser\/?date=2024-03-11&amp;site=all&amp;group=all&amp;satellite=all&amp;sensor=all&amp;product=all\">from this site<\/a> includes VIIRS imagery and <a href=\"https:\/\/www.ospo.noaa.gov\/Products\/atmosphere\/mirs\/rainrate.html\">MIRS RainRates<\/a>, and the microwave data can show you the TPW distribution, and the Rain Rates.  NOAA-20 overflew the region at 1137 UTC on 11 March.  Rain was primarily over and south of the islands, where the moisture-rich atmosphere was.  Microwave data gives important information about rain in regions where cirrus clouds might prevent an accurate determination of rains.  Suomi-NPP overflew the region at 1227 UTC (imagery shown at bottom) and gives similar information.<\/p>\n\n\n\n<figure class=\"wp-block-image size-full is-resized\"><a href=\"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-content\/uploads\/sites\/5\/2024\/03\/noaa20_VIIRSI05_ATMS_TPW_RAINRATE_toggle_20240311_1137UTC.gif\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"1024\" src=\"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-content\/uploads\/sites\/5\/2024\/03\/noaa20_VIIRSI05_ATMS_TPW_RAINRATE_toggle_20240311_1137UTC.gif\" alt=\"\" class=\"wp-image-57634\" style=\"width:1086px;height:auto\"\/><\/a><figcaption class=\"wp-element-caption\">NOAA-20 I05 (11.45) imagery as well as ATMS estimates of Total Precipitable Water and Rain Rates, 1137 UTC on 11 March 2024 (click to enlarge)<\/figcaption><\/figure>\n\n\n\n<figure class=\"wp-block-image size-full\"><a href=\"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-content\/uploads\/sites\/5\/2024\/03\/npp_VIIRSI05_ATMS_TOW_RAINRATE_toggle_20240311_1227UTC.gif\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"1024\" src=\"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-content\/uploads\/sites\/5\/2024\/03\/npp_VIIRSI05_ATMS_TOW_RAINRATE_toggle_20240311_1227UTC.gif\" alt=\"\" class=\"wp-image-57635\"\/><\/a><figcaption class=\"wp-element-caption\">Suomi-NPP I05 (11.45) imagery as well as ATMS estimates of Total Precipitable Water and Rain Rates, 1227 UTC on 11 March 2024 (click to enlarge)<\/figcaption><\/figure>\n","protected":false},"excerpt":{"rendered":"<p>CSPP Geosphere imagery (Night Microphysics RGB), above, shows baroclinic leaf over the Hawaiian islands that is suggestive of the early stages of a developing mid-latitude cyclone. Air Mass RGB over roughly the same time, below (source), is also suggestive of a developing cyclone. The orange values in the RGB to the west and south of [&hellip;]<\/p>\n","protected":false},"author":19,"featured_media":57636,"comment_status":"closed","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[114,79,93,78,49],"tags":[],"class_list":["post-57622","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-goes-18","category-microwave","category-mirs","category-noaa-20","category-suomi_npp"],"acf":[],"_links":{"self":[{"href":"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-json\/wp\/v2\/posts\/57622","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=57622"}],"version-history":[{"count":1,"href":"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-json\/wp\/v2\/posts\/57622\/revisions"}],"predecessor-version":[{"id":57637,"href":"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-json\/wp\/v2\/posts\/57622\/revisions\/57637"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-json\/wp\/v2\/media\/57636"}],"wp:attachment":[{"href":"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-json\/wp\/v2\/media?parent=57622"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-json\/wp\/v2\/categories?post=57622"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-json\/wp\/v2\/tags?post=57622"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}