{"id":36387,"date":"2020-04-24T23:59:17","date_gmt":"2020-04-24T23:59:17","guid":{"rendered":"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/?p=36387"},"modified":"2020-04-25T23:53:23","modified_gmt":"2020-04-25T23:53:23","slug":"tropical-invest-90e-in-the-east-pacific-ocean","status":"publish","type":"post","link":"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/archives\/36387","title":{"rendered":"Tropical Depression One-E forms in the East Pacific Ocean"},"content":{"rendered":"

\"GOES-17<\/a>

GOES-17 \u201cRed\u201d Visible (0.64 \u00b5m)<\/em> and \u201cClean\u201d Infrared Window (10.35 \u00b5m)<\/em> images [click to play animation | MP4]<\/strong><\/a><\/p><\/div>1-minute Mesoscale Domain Sector<\/strong><\/a> GOES-17 (GOES-West)<\/em> \u201cRed\u201d Visible (0.64 \u00b5m<\/strong><\/a>) and \u201cClean\u201d Infrared Window (10.35 \u00b5m<\/strong><\/a>) images (above)<\/strong> showed the circulation of Tropical Invest 90E in the East Pacific Ocean on 24 April 2020. The low-level circulation center appeared to be located about 100 miles southwest of the 18 UTC surface analysis position.<\/p>\n

GOES-17 Visible images with a plot of Deep-Layer Wind Shear<\/strong><\/a> from the CIMSS Tropical Cyclones<\/strong><\/a> site (below)<\/strong><\/em> indicated that Invest 90E was embedded within an environment of low shear — the National Hurricane Center gave the feature an 80% chance<\/strong><\/a> of further developing into a tropical depression within 48 hours.<\/p>\n

\"GOES-17<\/a>

GOES-17 \u201cRed\u201d Visible (0.64 \u00b5m)<\/em> images, with a plot of Deep-Layer Wind Shear at 23 UTC [click to enlarge]<\/p><\/div>VIIRS True Color RGB and Infrared Window (11.45 \u00b5m) images from NOAA-20 and Suomi NPP as viewed using RealEarth<\/strong><\/a> (below)<\/strong><\/em> revealed tendrils of transverse banding along the western and northern periphery if the disturbance.<\/p>\n

\"VIIRS<\/a>

VIIRS True Color RGB and Infrared Window (11.45 \u00b5m)<\/em> images from NOAA-20 and Suomi NPP [click to enlarge]<\/p><\/div>\n

===== 25 April Update =====<\/strong><\/p>\n

\"GOES-17<\/a>

GOES-17 \u201cClean\u201d Infrared Window (10.35 \u00b5m)<\/em> images [click to play animation | MP4<\/strong><\/a>]<\/p><\/div>GOES-17 Infrared images (above)<\/strong> <\/em>showed the period when the disturbance became classified as Tropical Depression One-E at 15 UTC<\/strong><\/a> — making this the earliest tropical cyclone on record in the East Pacific basin during the satellite era.<\/p>\n

\"GOES-17<\/a>

GOES-17 \u201cClean\u201d Infrared Window (10.35 \u00b5m)<\/em> images [click to play animation | MP4<\/strong><\/a>]<\/p><\/div>GOES-17 Infrared images with plots of tropical surface analyses (above)<\/strong><\/em> indicated that TD One-E was situated just north of the Intertropical Convergence Zone (ITCZ<\/strong><\/a>). The MIMIC-TPW<\/strong><\/a> product (below)<\/strong><\/em> showed that the tropical depression was tapping moisture from the ITCZ and drawing it northward.<\/p>\n

\"MIMIC<\/a>

MIMIC Total Precipitable Water product [click to enlarge]<\/p><\/div>GOES-17 Visible images (below)<\/strong><\/em> revealed an exposed low-level circulation that was displaced north-northwest of the primary cluster of deep convection.<\/p>\n

\"GOES-17<\/a>

GOES-17 \u201cRed\u201d Visible (0.64 \u00b5m)<\/em> images [click to play animation | MP4<\/strong><\/a>]<\/p><\/div>\n","protected":false},"excerpt":{"rendered":"

1-minute Mesoscale Domain Sector GOES-17 (GOES-West) \u201cRed\u201d Visible (0.64 \u00b5m) and \u201cClean\u201d Infrared Window (10.35 \u00b5m) images (above) showed the circulation of Tropical Invest 90E in the East Pacific Ocean on 24 April 2020. The low-level circulation center appeared to be located about 100 miles southwest of the 18 UTC surface analysis position. GOES-17 Visible […]<\/p>\n","protected":false},"author":18,"featured_media":36391,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[80,79,78,53,45,25,49,2,48],"tags":[],"class_list":["post-36387","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-goes-17","category-microwave","category-noaa-20","category-real-earth","category-redgreenblue-rgb-images","category-satellite-winds","category-suomi_npp","category-tropical-cyclones","category-viirs"],"acf":[],"_links":{"self":[{"href":"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-json\/wp\/v2\/posts\/36387","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=36387"}],"version-history":[{"count":9,"href":"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-json\/wp\/v2\/posts\/36387\/revisions"}],"predecessor-version":[{"id":36397,"href":"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-json\/wp\/v2\/posts\/36387\/revisions\/36397"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-json\/wp\/v2\/media\/36391"}],"wp:attachment":[{"href":"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-json\/wp\/v2\/media?parent=36387"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-json\/wp\/v2\/categories?post=36387"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-json\/wp\/v2\/tags?post=36387"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}