{"id":29344,"date":"2018-08-17T16:36:46","date_gmt":"2018-08-17T16:36:46","guid":{"rendered":"http:\/\/cimss.ssec.wisc.edu\/satellite-blog\/?p=29344"},"modified":"2018-08-17T16:53:30","modified_gmt":"2018-08-17T16:53:30","slug":"hurricane-lane-in-the-eastern-pacific-ocean","status":"publish","type":"post","link":"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/archives\/29344","title":{"rendered":"Hurricane Lane in the eastern Pacific Ocean"},"content":{"rendered":"
\"\"<\/a>

NOAA-20 VIIRS Imagery at 1023 UTC on 17 August 2018. Day Night Band Visible (0.7 \u00b5m) and I05 Infrared (11.45 \u00b5m) imagery are shown (Click to enlarge)<\/p><\/div>\n

The active eastern Pacific Hurricane season continues, as Lane has formed. Suomi NPP and NOAA-20 overflew the system early on 17 August 2018. The toggle above, from NOAA-20’s VIIRS Instrument, shows both the Day Night Band 0.70 \u00b5m visible Image<\/a> and the 11.45 \u00b5m infrared<\/a> channels. Lack of lunar illumination means that only Earthglow is making clouds visible; a distinct eye is not present. The step animation below between the NOAA-20 11.45 \u00b5m infrared<\/a> and, 50 minutes later, Suomi NPP’s 11.45 \u00b5m Infrared<\/a>, right at the limb of the scan, also show no distinct eye.<\/p>\n

\"\"<\/a>

VIIRS I05 11.45 \u00b5m Infrared Imagery from NOAA-20 (1023 UTC) and Suomi NPP (1113 UTC) on 17 August 2018 (Click to enlarge)<\/p><\/div>\n

In fact, however, an eye was likely present at this time. As noted in the National Hurricane Center’s 0900 UTC Discussion (Link<\/a>), “Recent microwave images show a well-defined low-level eye, but this feature is not yet apparent in geostationary satellite images.”\u00a0 AMSR-2 (Advanced Microwave Scanning Radiometer 2) estimates of Convective Precipitation<\/a> and Surface Rainfall<\/a> in the toggle below (data from 1003 UTC) show a distinct eye.\u00a0 AMSR-2 is a microwave instrument that flies on JAXA’s GCOM satellite<\/a>;\u00a0 microwave views of tropical cyclones are able to penetrate the cirrus shield that is commonly present, revealing important information about the low-level structure of a developing system.<\/p>\n

\"\"<\/a>

GCOM AMSR-2 estimates of convective precipitation and surface rainfall rates at 1003 UTC on 17 August 2018 (Click to enlarge)<\/p><\/div>\n

Polar Orbit tracks are available here<\/a>. For the latest information on Hurricane Lane, refer to the National Hurricane Center<\/a> or to the CIMSS\/SSEC Tropical Weather Website<\/a>. Imagery from Polar Orbiters are available at this site <\/a>that shows data from an antenna in Honolulu.<\/p>\n

Thank you to William Straka, CIMSS, for the imagery.<\/p>\n","protected":false},"excerpt":{"rendered":"

The active eastern Pacific Hurricane season continues, as Lane has formed. Suomi NPP and NOAA-20 overflew the system early on 17 August 2018. The toggle above, from NOAA-20’s VIIRS Instrument, shows both the Day Night Band 0.70 \u00b5m visible Image and the 11.45 \u00b5m infrared channels. Lack of lunar illumination means that only Earthglow is […]<\/p>\n","protected":false},"author":19,"featured_media":29348,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[79,78,47,49,2],"tags":[],"class_list":["post-29344","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-microwave","category-noaa-20","category-other-satellites","category-suomi_npp","category-tropical-cyclones"],"acf":[],"_links":{"self":[{"href":"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-json\/wp\/v2\/posts\/29344","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=29344"}],"version-history":[{"count":6,"href":"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-json\/wp\/v2\/posts\/29344\/revisions"}],"predecessor-version":[{"id":29359,"href":"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-json\/wp\/v2\/posts\/29344\/revisions\/29359"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-json\/wp\/v2\/media\/29348"}],"wp:attachment":[{"href":"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-json\/wp\/v2\/media?parent=29344"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-json\/wp\/v2\/categories?post=29344"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-json\/wp\/v2\/tags?post=29344"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}