{"id":29236,"date":"2018-08-07T21:59:43","date_gmt":"2018-08-07T21:59:43","guid":{"rendered":"http:\/\/cimss.ssec.wisc.edu\/satellite-blog\/?p=29236"},"modified":"2018-08-08T21:41:01","modified_gmt":"2018-08-08T21:41:01","slug":"hurricane-john","status":"publish","type":"post","link":"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/archives\/29236","title":{"rendered":"Hurricane John"},"content":{"rendered":"

\"GOES-16<\/a>

GOES-16 “Red” Visible (0.64 \u00b5m)<\/em> images [click to play animation | MP4<\/strong><\/a>]<\/p><\/div>1-minute Mesoscale Domain Sector<\/strong><\/a> “Red” Visible (0.64 \u00b5m<\/strong><\/a>) images from the AOS<\/strong><\/a> site (above)<\/strong><\/em> showed the circulation of Hurricane John<\/strong><\/a> as it was intensifying from a Category 1 to a Category 2 storm off the west coast of Mexico on 07 August 2018. Several tropical overshooting tops could be seen in the animation.<\/p>\n

GOES-16 Upper-level Water Vapor (6.2 \u00b5m<\/strong><\/a>), Mid-level Water Vapor (6.9 \u00b5m<\/strong><\/a>), Low-level Water Vapor (7.3 \u00b5m<\/strong><\/a>) and “Clean” Infrared Window (10.3 \u00b5m<\/strong><\/a>) images (below)<\/strong><\/em> revealed an interesting gravity wave that was propagating northward away from the center of John. This wave appeared to perturb the cloud tops — perhaps via vertical mixing — leading to a slight warming<\/em> of the colder cloud-top infrared brightness temperatures as the wave passed. The appearance and behavior of this wave was very similar to another observed in Nebraska, Colorado and Kansas on 22 July<\/strong><\/a>.<\/p>\n

\"GOES-16<\/a>

GOES-16 Upper-level Water Vapor (6.2 \u00b5m, top left),<\/em> Mid-level Water Vapor (6.9 \u00b5m, top right),<\/em> Low-level Water Vapor (7.3 \u00b5m, bottom left)<\/em> and “Clean” Infrared Window (10.3 \u00b5m, bottom right)<\/em> images [click to play MP4 animation]<\/p><\/div>Another item of interest was the circulation of weakening Tropical Storm Ileana<\/strong><\/a> being absorbed by the larger circulation of intensifying Hurricane John — this process was illustrated by 3-hourly 850 hPa relative vorticity<\/strong><\/a> analyses derived from GOES-15 (GOES-West)<\/em> satellite winds (below)<\/em><\/strong>. Similar results were seen at the 700 hPa<\/strong><\/a>, 500 hPa<\/strong><\/a> and 200 hPa<\/strong><\/a> pressure levels.<\/p>\n

\"3-hourly<\/a>

3-hourly analyses of 850 hPa relative vorticity [click to enlarge]<\/p><\/div>\n

===== 08 August Update =====<\/strong><\/p>\n

\"Visible<\/a>

Visible images from GOES-15, GOES-14, GOES-17 and GOES-16 [click to play animation | MP4<\/strong><\/a>]<\/p><\/div>GOES-15 (GOES-West),<\/em> GOES-14, GOES-17 and GOES-16 (GOES-East) <\/em>Visible images (above)<\/strong><\/em> showed 4 views of Hurricane John after it had diminished to a Category 1 storm on 08 August.<\/p>\n

Note that the GOES-15 and GOES-14 Visible images do not appear as bright as those from GOES-17 and GOES-16 — prior to the GOES-R Series of satellites, the performance of visible detectors degraded over time, leading to imagery that appeared more dim as the Imager<\/strong><\/a> instrument aged. Visible detectors on the new ABI<\/strong><\/a> instrument benefit from on-orbit calibration to remedy this type of degradation.<\/p>\n

* GOES-17 images shown here preliminary and non-operational *<\/strong><\/p>\n","protected":false},"excerpt":{"rendered":"

1-minute Mesoscale Domain Sector “Red” Visible (0.64 \u00b5m) images from the AOS site (above) showed the circulation of Hurricane John as it was intensifying from a Category 1 to a Category 2 storm off the west coast of Mexico on 07 August 2018. Several tropical overshooting tops could be seen in the animation. GOES-16 Upper-level […]<\/p>\n","protected":false},"author":18,"featured_media":29239,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[40,43,74,80,25,2],"tags":[],"class_list":["post-29236","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-goes-14","category-goes-15","category-goes-16","category-goes-17","category-satellite-winds","category-tropical-cyclones"],"acf":[],"_links":{"self":[{"href":"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-json\/wp\/v2\/posts\/29236","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=29236"}],"version-history":[{"count":15,"href":"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-json\/wp\/v2\/posts\/29236\/revisions"}],"predecessor-version":[{"id":29260,"href":"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-json\/wp\/v2\/posts\/29236\/revisions\/29260"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-json\/wp\/v2\/media\/29239"}],"wp:attachment":[{"href":"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-json\/wp\/v2\/media?parent=29236"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-json\/wp\/v2\/categories?post=29236"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-json\/wp\/v2\/tags?post=29236"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}