{"id":30263,"date":"2018-10-13T23:59:32","date_gmt":"2018-10-13T23:59:32","guid":{"rendered":"http:\/\/cimss.ssec.wisc.edu\/satellite-blog\/?p=30263"},"modified":"2018-10-17T15:03:49","modified_gmt":"2018-10-17T15:03:49","slug":"post-tropical-cyclone-leslie-makes-landfall-in-portugal","status":"publish","type":"post","link":"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/archives\/30263","title":{"rendered":"Post-Tropical Cyclone Leslie makes landfall in Portugal"},"content":{"rendered":"<p><div style=\"width: 649px\" class=\"wp-caption aligncenter\"><a href=\"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-content\/uploads\/sites\/5\/2018\/10\/181013_1419utc_aqua_modis_truecolor_Leslie_anim.gif\"><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-content\/uploads\/sites\/5\/2018\/10\/181013_1419utc_aqua_modis_truecolor_Leslie_anim.gif\" alt=\"Aqua MODIS True Color RGB image [click to enlarge]\" width=\"639\" height=\"388\" \/><\/a><p class=\"wp-caption-text\">Aqua MODIS True Color RGB image, with and without surface reports [click to enlarge]<\/p><\/div>20 days after <a href=\"https:\/\/www.nhc.noaa.gov\/archive\/2018\/LESLIE.shtml?\"><strong>Leslie<\/strong><\/a> initially formed (and 17 days after it underwent <a href=\"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/archives\/29994\"><strong>extratropical transition<\/strong><\/a>), an Aqua MODIS True Color Red-Green-Blue (RGB) image viewed using <a href=\"https:\/\/re.ssec.wisc.edu\/s\/pWdMu\"><strong>RealEarth<\/strong><\/a> <em><strong>(above)<\/strong><\/em> showed the storm at 1419 UTC on 13 October 2018, when it was still classified as a Category 1 Hurricane off the coast of Portugal. The southwest-to-northeast oriented cloud band just west of Leslie was associated with an advancing cold front (<a href=\"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-content\/uploads\/sites\/5\/2018\/10\/181013_surface_analyses_Leslie_anim.gif\"><strong>surface analyses<\/strong><\/a>), which soon began to absorb the tropical cyclone and aid in its extra-tropical transition a few hours prior to landfall.<\/p>\n<p><a href=\"https:\/\/www.eumetsat.int\/website\/home\/index.html\"><strong>EUMETSAT<\/strong><\/a> Meteosat-11 middle\/upper-tropospheric Water Vapor (6.25 \u00b5m) images <em><strong>(below)<\/strong><\/em> exhibited a warm\/drying trend<em> (brighter shades of yellow)<\/em> along the western and southern edges of Leslie as it moved inland across Portugal. Hourly Meteosat-11 Water Vapor images visualized using RealEarth are available <a href=\"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-content\/uploads\/sites\/5\/2018\/10\/181013_meteosat11_waterVapor_Leslie_landfall_anim.gif\"><strong>here<\/strong><\/a>.<\/p>\n<p><div style=\"width: 651px\" class=\"wp-caption aligncenter\"><a class=\"thumbnail\" href=\"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-content\/uploads\/sites\/5\/2018\/10\/181013_meteosat11_waterVapor_b5_Leslie_landfall_anim.gif\"><img loading=\"lazy\" decoding=\"async\" class=\"thumbnail\" src=\"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-content\/uploads\/sites\/5\/2018\/10\/MET11_WATER_VAPOR_B5_LESLIE_LANDFALL_13OCT2018_2018286_210000_0001PANEL.GIF\" alt=\"EUMETSAT Meteosat-11 Water Vapor (6.25 \u00b5m) images, with hourly plots of surface winds and gusts in knots [click to play animation | MP4]\" width=\"641\" height=\"481\" \/><\/a><p class=\"wp-caption-text\">EUMETSAT Meteosat-11 Water Vapor <em>(6.25 \u00b5m)<\/em> images, with hourly plots of surface winds and gusts in knots [click to play animation | <a href=\"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-content\/uploads\/sites\/5\/2018\/10\/181013_meteosat11_waterVapor_b5_Leslie_landfall_v2_anim.mp4\"><strong>MP4<\/strong><\/a>]<\/p><\/div>Along the coast of Portugal a thunderstorm was reported at Porto (<a href=\"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-content\/uploads\/sites\/5\/2018\/10\/181013_LPPR_SFCMG.GIF\"><strong>LPPR<\/strong><\/a>) from 1930-2000 UTC (about an hour before landfall). Farther to the south, shortly after landfall the surface winds gusted to 55 knots <em>(63 mph or 28.3 m\/s)<\/em> at Monte Real Air Base (<a href=\"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-content\/uploads\/sites\/5\/2018\/10\/181013_LPMR_SFCMG.GIF\"><strong>LPMR<\/strong><\/a>) at 21 UTC and 42 knots <em>(48 mph or 21.6 m\/s)<\/em> at Ovar Military Base (<a href=\"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-content\/uploads\/sites\/5\/2018\/10\/181013_LPOV_SFCMG.GIF\"><strong>LPOV<\/strong><\/a>) at 23 UTC. The highest wind gust was 95 knots <em>(110 mph or 49 m\/s)<\/em> at Figueira da Foz, located along the coast <strong><a href=\"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-content\/uploads\/sites\/5\/2018\/10\/181013_22utc_wv_Figueira_da_Foz_anim.gif\">between LPMR and LPOV<\/a><\/strong>:<\/p>\n<p><center><\/p>\n<blockquote class=\"twitter-tweet\" data-lang=\"en\">\n<p dir=\"ltr\" lang=\"en\">According to data from <a href=\"https:\/\/twitter.com\/ipma_pt?ref_src=twsrc%5Etfw\">@ipma_pt<\/a> a maximum wind gust of 176,4 km\/h has been measured in Figueira da Foz near the coast during the passage of storm <a href=\"https:\/\/twitter.com\/hashtag\/Leslie?src=hash&amp;ref_src=twsrc%5Etfw\">#Leslie<\/a>! Two more hurricane-force gusts were observed in Coimbra and Aveiro (Image source: <a href=\"https:\/\/t.co\/gOO95O2WUz\">https:\/\/t.co\/gOO95O2WUz<\/a>). <a href=\"https:\/\/twitter.com\/hashtag\/wetter?src=hash&amp;ref_src=twsrc%5Etfw\">#wetter<\/a> <a href=\"https:\/\/t.co\/T55ykhL8Vm\">pic.twitter.com\/T55ykhL8Vm<\/a><\/p>\n<p>\u2014 Luca Mathias (@meteomathias) <a href=\"https:\/\/twitter.com\/meteomathias\/status\/1051395040403214336?ref_src=twsrc%5Etfw\">October 14, 2018<\/a><\/p><\/blockquote>\n<p><script async src=\"https:\/\/platform.twitter.com\/widgets.js\" charset=\"utf-8\"><\/script><\/p>\n<p><\/center>Meteosat-11 lower\/middle-tropospheric Water Vapor (7.35 \u00b5m) images <em><strong>(below)<\/strong><\/em> revealed the characteristic &#8220;scorpion tail&#8221; signature of a Sting Jet (<a href=\"https:\/\/journals.ametsoc.org\/doi\/full\/10.1175\/2010MWR3290.1\"><strong>Monthly Weather Review<\/strong><\/a> | <a href=\"https:\/\/en.wikipedia.org\/wiki\/Sting_jet\"><strong>Wikipedia<\/strong><\/a>), along with a mesoscale region of warming\/drying <em>(darker shades of orange)<\/em> driven by strong subsidence &#8212; this subsidence feature corresponded well with the report of strong winds at Figueira da Foz. Further discussion of this sting jet event is available <strong><a href=\"http:\/\/www.severe-weather.eu\/recent-events\/in-review-sting-jet-brought-extensive-damage-to-western-portugal-during-landfall-of-extra-tropical-storm-leslie-oct-14th\/\">here<\/a><\/strong>.<\/p>\n<div style=\"width: 649px\" class=\"wp-caption aligncenter\"><a class=\"thumbnail\" href=\"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-content\/uploads\/sites\/5\/2018\/10\/181013_meteosat11_waterVapor_band6_sting_jet_anim.gif\"><img loading=\"lazy\" decoding=\"async\" class=\"thumbnail\" src=\"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-content\/uploads\/sites\/5\/2018\/10\/MET11_WATER_VAPOR_B6_LESLIE_LANDFALL_13OCT2018_2018286_170000_0001PANEL_A.gif\" alt=\"Meteosat-11 Water Vapor (7.35 \u00b5m) images, with hourly splots of surface winds and gusts in knots [click to play animation | MP4]\" width=\"639\" height=\"480\" \/><\/a><p class=\"wp-caption-text\">EUMETSAT Meteosat-11 Water Vapor <em>(7.35 \u00b5m)<\/em> images, with hourly plots of surface winds and gusts in knots [click to play animation | <a href=\"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-content\/uploads\/sites\/5\/2018\/10\/181013_meteosat11_waterVapor_band6_sting_jet_anim.mp4\"><strong>MP4<\/strong><\/a>]<\/p><\/div>\n<p>Radar composites from the Portuguese Institute for Sea and Atmosphere (<a href=\"http:\/\/www.ipma.pt\/en\/index.html\"><strong>IPMA<\/strong><\/a>) confirmed that post-tropical cyclone Leslie made landfall around <strong><a href=\"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-content\/uploads\/sites\/5\/2018\/10\/181013_2100utc_radar_Leslie.jpg\">2100 UTC<\/a><\/strong> <em><strong>(below)<\/strong><\/em>.<\/p>\n<div style=\"width: 610px\" class=\"wp-caption aligncenter\"><a class=\"thumbnail\" href=\"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-content\/uploads\/sites\/5\/2018\/10\/181013_Portugal_radar_Leslie_landfall_anim.gif\"><img loading=\"lazy\" decoding=\"async\" class=\"thumbnail\" src=\"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-content\/uploads\/sites\/5\/2018\/10\/181013_2100utc_radar_Leslie.jpg\" alt=\"Radar reflectivity composites [click to play animation]\" width=\"600\" height=\"600\" \/><\/a><p class=\"wp-caption-text\">Radar reflectivity composites [click to play animation]<\/p><\/div>\n<p>Although the view from GOES-16 <em>(GOES-East)<\/em> was very oblique, the warm\/dry signature around the western and southern edges of the storm was still evident on Mid-level Water Vapor (<a href=\"http:\/\/cimss.ssec.wisc.edu\/goes\/OCLOFactSheetPDFs\/ABIQuickGuide_Band09.pdf\"><strong>6.9 \u00b5m<\/strong><\/a>) imagery <em><strong>(below)<\/strong><\/em>.<\/p>\n<div style=\"width: 649px\" class=\"wp-caption aligncenter\"><a class=\"thumbnail\" href=\"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-content\/uploads\/sites\/5\/2018\/10\/181013_goes16_waterVapor_Leslie_landfall_anim.gif\"><img loading=\"lazy\" decoding=\"async\" class=\"thumbnail\" src=\"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-content\/uploads\/sites\/5\/2018\/10\/G16_WATER_VAPOR_LESLIE_LANDFALL_13OCT2018_2018286_210038_GOES-16_0001PANEL.GIF\" alt=\"GOES-16 Mid-level Water Vapor (6.9 \u00b5m) images, with hourly plots of surface winds and gusts in knots [click to play animation | MP4]\" width=\"639\" height=\"479\" \/><\/a><p class=\"wp-caption-text\">GOES-16 Mid-level Water Vapor (<em>6.9 \u00b5m)<\/em> images, with hourly plots of surface winds and gusts in knots [click to play animation | <a href=\"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-content\/uploads\/sites\/5\/2018\/10\/181013_goes16_waterVapor_Leslie_landfall_anim.mp4\"><strong>MP4<\/strong><\/a>]<\/p><\/div>\n<p>The entire life cycle of Leslie &#8212; from becoming a named Subtropical Storm at 15 UTC on 23 September to making landfall as a post-tropical cyclone in Portugal at 21 UTC on 13 October &#8212; is shown with 15-minute GOES-16 &#8220;Clean&#8221; Infrared Window (<a href=\"http:\/\/cimss.ssec.wisc.edu\/goes\/OCLOFactSheetPDFs\/ABIQuickGuide_Band13.pdf\"><strong>10.3 \u00b5m<\/strong><\/a>)\u00a0 and Mid-level Water Vapor (<a href=\"http:\/\/cimss.ssec.wisc.edu\/goes\/OCLOFactSheetPDFs\/ABIQuickGuide_Band09.pdf\"><strong>6.9 \u00b5m<\/strong><\/a>) images <em><strong>(below)<\/strong><\/em>. Note that 5-minute imagery was available on 01 October, when GOES-16 was performing a test of the <a href=\"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/archives\/30072\"><strong>Mode 4 scan strategy<\/strong><\/a>.<\/p>\n<p><div style=\"width: 649px\" class=\"wp-caption aligncenter\"><a class=\"thumbnail\" href=\"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-content\/uploads\/sites\/5\/2018\/10\/180923_181013_goes16_infrared_Leslie_lifecycle_anim.mp4\"><img loading=\"lazy\" decoding=\"async\" class=\"thumbnail\" src=\"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-content\/uploads\/sites\/5\/2018\/10\/G16_IR_LESLIE_LIFECYCLE_22SEP_13OCT2018_2018266_150034_GOES-16_0001PANEL.GIF\" alt=\"GOES-16 \" width=\"639\" height=\"359\" \/><\/a><p class=\"wp-caption-text\">GOES-16 &#8220;Clean&#8221; Infrared Window <em>(10.3 \u00b5m)<\/em> images [click to play MP4 animation]<\/p><\/div><div style=\"width: 649px\" class=\"wp-caption aligncenter\"><a class=\"thumbnail\" href=\"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-content\/uploads\/sites\/5\/2018\/10\/180923_181013_goes16_waterVapor_Leslie_lifecycle_anim.mp4\"><img loading=\"lazy\" decoding=\"async\" class=\"thumbnail\" src=\"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-content\/uploads\/sites\/5\/2018\/10\/G16_WV_LESLIE_LIFECYCLE_22SEP_13OCT2018_2018266_150034_GOES-16_0001PANEL.GIF\" alt=\"GOES-16 Mid-level Water Vapor (6.9 \u00b5m) images [click to play MP4 animation]\" width=\"639\" height=\"359\" \/><\/a><p class=\"wp-caption-text\">GOES-16 Mid-level Water Vapor <em>(6.9 \u00b5m)<\/em> images [click to play MP4 animation]<\/p><\/div><br \/>\n<center><\/p>\n<blockquote class=\"twitter-tweet\" data-lang=\"en\">\n<p lang=\"en\" dir=\"ltr\">The long and winding adventure of Hurricane <a href=\"https:\/\/twitter.com\/hashtag\/Leslie?src=hash&amp;ref_src=twsrc%5Etfw\">#Leslie<\/a> has finally come to a close. Over its 22.25 day existence as a coherent cyclone, it largely spun harmlessly over open ocean. It ultimately impacted <a href=\"https:\/\/twitter.com\/hashtag\/Portugal?src=hash&amp;ref_src=twsrc%5Etfw\">#Portugal<\/a> as an extratropical cyclone, producing wind gusts upwards of 110mph. <a href=\"https:\/\/t.co\/9vrOiBxQAy\">pic.twitter.com\/9vrOiBxQAy<\/a><\/p>\n<p>&mdash; Brenden Moses (@Cyclonebiskit) <a href=\"https:\/\/twitter.com\/Cyclonebiskit\/status\/1051527263114522624?ref_src=twsrc%5Etfw\">October 14, 2018<\/a><\/p><\/blockquote>\n<p><script async src=\"https:\/\/platform.twitter.com\/widgets.js\" charset=\"utf-8\"><\/script><br \/>\n<\/center><\/p>\n","protected":false},"excerpt":{"rendered":"<p>20 days after Leslie initially formed (and 17 days after it underwent extratropical transition), an Aqua MODIS True Color Red-Green-Blue (RGB) image viewed using RealEarth (above) showed the storm at 1419 UTC on 13 October 2018, when it was still classified as a Category 1 Hurricane off the coast of Portugal. The southwest-to-northeast oriented cloud [&hellip;]<\/p>\n","protected":false},"author":18,"featured_media":30283,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[74,23,53,45,2],"tags":[],"class_list":["post-30263","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-goes-16","category-meteosat","category-real-earth","category-redgreenblue-rgb-images","category-tropical-cyclones"],"acf":[],"_links":{"self":[{"href":"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-json\/wp\/v2\/posts\/30263","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=30263"}],"version-history":[{"count":32,"href":"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-json\/wp\/v2\/posts\/30263\/revisions"}],"predecessor-version":[{"id":30309,"href":"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-json\/wp\/v2\/posts\/30263\/revisions\/30309"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-json\/wp\/v2\/media\/30283"}],"wp:attachment":[{"href":"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-json\/wp\/v2\/media?parent=30263"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-json\/wp\/v2\/categories?post=30263"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-json\/wp\/v2\/tags?post=30263"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}