{"id":35265,"date":"2019-12-22T23:59:56","date_gmt":"2019-12-22T23:59:56","guid":{"rendered":"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/?p=35265"},"modified":"2019-12-27T03:47:39","modified_gmt":"2019-12-27T03:47:39","slug":"orographic-banner-cloud-over-southern-california","status":"publish","type":"post","link":"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/archives\/35265","title":{"rendered":"Orographic banner cloud over Southern California"},"content":{"rendered":"

\"GOES-17<\/a>

GOES-17 Low-level (7.3 \u00b5m),<\/em> Mid-level (6.9 \u00b5m),<\/em> Upper-level (6.2 \u00b5m)<\/em> Water Vapor and “Clean” Infrared Window (10.35 \u00b5m)<\/em> images [click to play animation | MP4<\/strong><\/a>]<\/p><\/div>A sequence of GOES-17 (GOES-West)<\/em> Low-level (7.3 \u00b5m<\/strong><\/a>), Mid-level (6.9 \u00b5m<\/strong><\/a>), Upper-level (6.2 \u00b5m<\/strong><\/a>) Water Vapor and “Clean” Infrared Window (10.35 \u00b5m<\/strong><\/a>) images (above)<\/strong><\/em> showed a long-lived orographic banner cloud that formed in Southern California and extended about 200 miles to the northeast across southern Nevada on 22 December 2019<\/strong><\/a>. The banner cloud was formed by anomalously-strong southwesterly winds (925 hPa<\/strong><\/a> | 250 hPa<\/strong><\/a>) interacting with the high terrain of Southern California’s Transverse Ranges<\/strong><\/a>. At the surface, wind gusts<\/strong><\/a> as high as 86 mph were observed.<\/p>\n

Within the banner cloud, the coldest GOES-17 Infrared brightness temperatures were in the -60 to -65\u00baC range — according to rawinsonde data from Vandenberg, California (below)<\/strong>,<\/em> those temperatures corresponded to altitudes in the 12-15 km range.<\/p>\n

\"12<\/a>

12 UTC rawinsonde data from Vandenberg, California [click to enlarge]<\/p><\/div>\n","protected":false},"excerpt":{"rendered":"

A sequence of GOES-17 (GOES-West) Low-level (7.3 \u00b5m), Mid-level (6.9 \u00b5m), Upper-level (6.2 \u00b5m) Water Vapor and “Clean” Infrared Window (10.35 \u00b5m) images (above) showed a long-lived orographic banner cloud that formed in Southern California and extended about 200 miles to the northeast across southern Nevada on 22 December 2019. The banner cloud was formed […]<\/p>\n","protected":false},"author":18,"featured_media":35268,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[80],"tags":[],"class_list":["post-35265","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-goes-17"],"acf":[],"_links":{"self":[{"href":"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-json\/wp\/v2\/posts\/35265","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=35265"}],"version-history":[{"count":3,"href":"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-json\/wp\/v2\/posts\/35265\/revisions"}],"predecessor-version":[{"id":35269,"href":"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-json\/wp\/v2\/posts\/35265\/revisions\/35269"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-json\/wp\/v2\/media\/35268"}],"wp:attachment":[{"href":"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-json\/wp\/v2\/media?parent=35265"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-json\/wp\/v2\/categories?post=35265"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-json\/wp\/v2\/tags?post=35265"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}