{"id":12520,"date":"2013-03-25T02:46:44","date_gmt":"2013-03-25T02:46:44","guid":{"rendered":"http:\/\/cimss.ssec.wisc.edu\/satellite-blog\/?p=12520"},"modified":"2013-03-25T19:14:39","modified_gmt":"2013-03-25T19:14:39","slug":"severe-thunderstorms-produce-hail-and-damaging-winds-across-florida","status":"publish","type":"post","link":"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/archives\/12520","title":{"rendered":"Severe thunderstorms produce hail and damaging winds across Florida"},"content":{"rendered":"
\"GOES-13<\/a>

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

AWIPS images of GOES-13 10.7 \u00c2\u00b5m IR channel data (above; click image to play animation)<\/em><\/strong> showed a band of strong to severe thunderstorms that moved eastward across central Florida during the afternoon hours on 24 March 2013<\/a><\/strong>. These storms produced a few reports of hail up to 1.0 inch in diameter, as well as a number of damaging wind reports which included a gust to 75 knots or 86 mph at Orlando International Airport at 18:40 UTC or 2:40 PM local time (SPC storm reports<\/a><\/strong>).<\/p>\n

1-km resolution Suomi NPP VIIRS 0.64 \u00c2\u00b5m visible channel and 11.45 \u00c2\u00b5m IR images with overlays of surface METAR reports and SPC storm reports (below)<\/em><\/strong> revealed that there was a cluster of overshooting tops with cloud-top IR brightness temperature values as cold as -67\u00c2\u00ba C (darker red color enhancment)<\/em> that appearaed to be associated with the reports of high wind gusts at the surface.<\/p>\n

\"Suomi<\/a>

Suomi NPP VIIRS 0.64 \u00c2\u00b5m visible channel and 11.45 \u00c2\u00b5m IR channel images (with overlays of surface reports and severe weather reports)<\/p><\/div>\n

A comparison of a 1-km resolution Suomi NPP VIIRS 11.45 \u00c2\u00b5m IR image with the corresponding 4-km resolution GOES-13 10.7 \u00c2\u00b5m IR image (below)<\/em><\/strong> demonstrated the advantage of higher spatial resolution for aiding in the identification of the location and magnitude of the coldest cloud-top IR brightness temperatures (-67\u00c2\u00ba C with VIIRS, vs -60\u00c2\u00ba C with GOES)<\/em>. In addition, the effect of parallax<\/a><\/strong> was evident on the GOES-13 IR image, with features being displaced to the northwest.<\/p>\n

\"Suomi<\/a>

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

GOES-13 sounder Lifted Index (LI) and Total Precipitable Water (TPW) derived product images (below)<\/em><\/strong> indicated that moisture (TPW values as high as 45 mm or 1.78 inches)<\/em> and instability (LI values as low as -10.4\u00c2\u00ba C)<\/em><\/em> were in place in the pre-convective environment across central Florida at 16:00 UTC or 12:00 PM local time.<\/p>\n

\"GOES-13<\/a>

GOES-13 sounder Lifted Index and Total Precipitable Water derived product images<\/p><\/div>\n","protected":false},"excerpt":{"rendered":"

AWIPS images of GOES-13 10.7 \u00c2\u00b5m IR channel data (above; click image to play animation) showed a band of strong to severe thunderstorms that moved eastward across central Florida during the afternoon hours on 24 March 2013. These storms produced a few reports of hail up to 1.0 inch in diameter, as well as a […]<\/p>\n","protected":false},"author":18,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[15,11,3,49,48],"tags":[],"class_list":["post-12520","post","type-post","status-publish","format-standard","hentry","category-goes-sounder","category-goes-13","category-severe-convection","category-suomi_npp","category-viirs"],"acf":[],"_links":{"self":[{"href":"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-json\/wp\/v2\/posts\/12520","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=12520"}],"version-history":[{"count":4,"href":"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-json\/wp\/v2\/posts\/12520\/revisions"}],"predecessor-version":[{"id":12524,"href":"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-json\/wp\/v2\/posts\/12520\/revisions\/12524"}],"wp:attachment":[{"href":"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-json\/wp\/v2\/media?parent=12520"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-json\/wp\/v2\/categories?post=12520"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-json\/wp\/v2\/tags?post=12520"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}