{"id":15092,"date":"2014-03-06T23:59:35","date_gmt":"2014-03-06T23:59:35","guid":{"rendered":"http:\/\/cimss.ssec.wisc.edu\/satellite-blog\/?p=15092"},"modified":"2014-03-09T03:07:23","modified_gmt":"2014-03-09T03:07:23","slug":"severe-thunderstorms-over-the-gulf-of-mexico","status":"publish","type":"post","link":"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/archives\/15092","title":{"rendered":"Severe thunderstorms over the Gulf of Mexico"},"content":{"rendered":"
\"Suomi<\/a>

Suomi NPP VIIRS 11.45 \u00c2\u00b5m IR channel and 0.7 \u00c2\u00b5m Day\/Night Band images (with CG lightning strikes)<\/p><\/div>\n

A night-time AWIPS image comparison of Suomi NPP VIIRS 11.45 \u00c2\u00b5m IR and 0.7 \u00c2\u00b5m Day\/Night Band data (above)<\/strong><\/em> showed a large mesoscale convective system (MCS) over the Gulf of Mexico at 07:08 UTC (2:08 AM local time)<\/em> on 06 March 2014<\/strong><\/a>. On the IR image, brightness temperatures were as cold as -80\u00c2\u00ba C on the far southern end of the storm, which had developed in the warm sector of a developing area of low pressure (surface frontal analysis<\/strong><\/a>). The Day\/Night Band image revealed: (1) numerous bright west-to-east oriented “lightning streaks” caused by intense lightning activity illuminating the MCS cloud and cloud top — note that there were over 1300 cloud-to-ground (CG) lightning strikes detected in a 15-minute period, and (2) arc-shaped mesospheric airglow waves propagating northward and northeastward away from the region of vigorous overshooting tops at the southern end of the MCS.<\/p>\n

A comparison of the 375-meter resolution Suomi NPP VIIRS 11.45 \u00c2\u00b5m IR image with a 4-km resolution GOES-13 10.7 \u00c2\u00b5m IR image (below)<\/strong><\/em> showed that the higher spatial resolution of the VIIRS data provided much clearer view of the various cloud structures along with a better depiction of the values of the cloud-top IR brightness temperatures.<\/p>\n

\"Suomi<\/a>

Suomi NPP VIIRS 11.45 \u00c2\u00b5m IR and GOES-13 10.7 \u00c2\u00b5m IR channel images<\/p><\/div>\n

\"GOES-13<\/a>

GOES-13 10.7 \u00c2\u00b5m IR channel images (click to play animation)<\/p><\/div>\n

GOES-13 10.7 \u00c2\u00b5m IR channel images (above; click image to play animation)<\/strong><\/em> showed the evolution of the MCS as it continued to move eastward toward Florida. A squall line developed along the leading edge of the MCS, which played a role in producing a few tornadoes and areas of damaging winds over the southern half of the Florida peninsula (below)<\/strong><\/em>.<\/p>\n

\"Plot<\/a>

Plot of SPC storm reports<\/p><\/div>\n","protected":false},"excerpt":{"rendered":"

A night-time AWIPS image comparison of Suomi NPP VIIRS 11.45 \u00c2\u00b5m IR and 0.7 \u00c2\u00b5m Day\/Night Band data (above) showed a large mesoscale convective system (MCS) over the Gulf of Mexico at 07:08 UTC (2:08 AM local time) on 06 March 2014. On the IR image, brightness temperatures were as cold as -80\u00c2\u00ba C on […]<\/p>\n","protected":false},"author":18,"featured_media":15093,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[11,30,3,49,48],"tags":[],"class_list":["post-15092","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-goes-13","category-lightning","category-severe-convection","category-suomi_npp","category-viirs"],"acf":[],"_links":{"self":[{"href":"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-json\/wp\/v2\/posts\/15092","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=15092"}],"version-history":[{"count":6,"href":"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-json\/wp\/v2\/posts\/15092\/revisions"}],"predecessor-version":[{"id":15099,"href":"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-json\/wp\/v2\/posts\/15092\/revisions\/15099"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-json\/wp\/v2\/media\/15093"}],"wp:attachment":[{"href":"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-json\/wp\/v2\/media?parent=15092"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-json\/wp\/v2\/categories?post=15092"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-json\/wp\/v2\/tags?post=15092"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}