{"id":171,"date":"2010-03-17T11:12:45","date_gmt":"2010-03-17T18:12:45","guid":{"rendered":"http:\/\/rammb.cira.colostate.edu\/visit\/blog\/index.php\/2010\/03\/17\/severe-thunderstorms-over-southwest-arkansas-on-10-march-2010\/"},"modified":"2026-03-06T09:06:29","modified_gmt":"2026-03-06T16:06:29","slug":"severe-thunderstorms-over-southwest-arkansas-on-10-march-2010","status":"publish","type":"post","link":"https:\/\/rammb2.cira.colostate.edu\/visit-blog\/2010\/03\/17\/severe-thunderstorms-over-southwest-arkansas-on-10-march-2010\/","title":{"rendered":"Severe thunderstorms over southwest Arkansas on 10 March 2010"},"content":{"rendered":"<p>Jeff Braun, Louie Grasso and Dan Lindsey<\/p>\n<p><a title=\"IR\" href=\"https:\/\/rammb2.cira.colostate.edu\/visit-blog\/wp-content\/uploads\/sites\/5\/2010\/03\/mar102010_032311.jpg\"><img decoding=\"async\" src=\"https:\/\/rammb2.cira.colostate.edu\/visit-blog\/wp-content\/uploads\/sites\/5\/2010\/03\/mar102010_032311.jpg\" alt=\"IR\" \/><\/a><\/p>\n<p><span style=\"font-size: 11pt;font-family: 'Georgia','serif'\">Figure 1: GOES-12 10.7 \u00b5m on 10 March 2010 at 2115 UTC. Color table shows enhances temperatures in Celsius.<\/span><\/p>\n<p><span style=\"font-size: 11pt;font-family: 'Georgia','serif'\"><span style=\"font-size: 11pt;font-family: 'Georgia','serif'\">On the afternoon of 10 March 2010, thunderstorms developed over northeast Texas. These storms moved northeastward into southwest Arkansas. A GOES-12 10.7 \u00b5m image at 2115 UTC shows the location of the storms (Figure 1). Note the rather small enhanced V signature over the storm in extreme northeast Texas. Likewise, a larger, although not as pronounced, enhanced V signature was evident over the storm in southwest Arkansas. As seen in the color table in Figure 1, cloud top temperatures were near -50 C in and around the enhanced V signatures.<\/span><\/span><\/p>\n<p><span style=\"font-size: 11pt;font-family: 'Georgia','serif'\"><span style=\"font-size: 11pt;font-family: 'Georgia','serif'\"><a title=\"3.9\" href=\"https:\/\/rammb2.cira.colostate.edu\/visit-blog\/wp-content\/uploads\/sites\/5\/2010\/03\/mar102010_034711.jpg\"><img decoding=\"async\" src=\"https:\/\/rammb2.cira.colostate.edu\/visit-blog\/wp-content\/uploads\/sites\/5\/2010\/03\/mar102010_034711.jpg\" alt=\"3.9\" \/><\/a><\/span><\/span><\/p>\n<p><span style=\"font-size: 11pt;font-family: 'Georgia','serif'\"><span style=\"font-size: 11pt;font-family: 'Georgia','serif'\"><span style=\"font-size: 11pt;font-family: 'Georgia','serif'\">Figure 2: GOES-12 3.9 \u00b5m on 10 March 2010 at 2115 UTC.<\/span><\/span><\/span><\/p>\n<p><span style=\"font-size: 11pt;font-family: 'Georgia','serif'\"><span style=\"font-size: 11pt;font-family: 'Georgia','serif'\"><span style=\"font-size: 11pt;font-family: 'Georgia','serif'\"><span style=\"font-size: 11pt;font-family: 'Georgia','serif'\">A different pattern was evident in the 3.9 \u00b5m image for the same two storms (Figure 2). The speckled green region in both these storms bounds a grey region. This grey region represents brightness temperatures near -10 C. This suggests that more solar energy at 3.9 \u00b5m was reflected back to GOES-12 from the grey region. <\/span><\/span><\/span><\/span><\/p>\n<p><span style=\"font-size: 11pt;font-family: 'Georgia','serif'\"><span style=\"font-size: 11pt;font-family: 'Georgia','serif'\"><span style=\"font-size: 11pt;font-family: 'Georgia','serif'\"><span style=\"font-size: 11pt;font-family: 'Georgia','serif'\"><a title=\"Ice Particle Size\" href=\"https:\/\/rammb2.cira.colostate.edu\/visit-blog\/wp-content\/uploads\/sites\/5\/2010\/03\/mar102010_030311.jpg\"><img decoding=\"async\" src=\"https:\/\/rammb2.cira.colostate.edu\/visit-blog\/wp-content\/uploads\/sites\/5\/2010\/03\/mar102010_030311.jpg\" alt=\"Ice Particle Size\" \/><\/a><\/span><\/span><\/span><\/span><\/p>\n<p><span style=\"font-size: 11pt;font-family: 'Georgia','serif'\"><span style=\"font-size: 11pt;font-family: 'Georgia','serif'\"><span style=\"font-size: 11pt;font-family: 'Georgia','serif'\"><span style=\"font-size: 11pt;font-family: 'Georgia','serif'\"> <\/span><\/span><\/span><\/span><span style=\"font-size: 11pt;font-family: 'Georgia','serif'\"><span style=\"font-size: 11pt;font-family: 'Georgia','serif'\"><span style=\"font-size: 11pt;font-family: 'Georgia','serif'\"><span style=\"font-size: 11pt;font-family: 'Georgia','serif'\"> <\/span><\/span><\/span><\/span><span style=\"font-size: 11pt;font-family: 'Georgia','serif'\"><span style=\"font-size: 11pt;font-family: 'Georgia','serif'\"><span style=\"font-size: 11pt;font-family: 'Georgia','serif'\"><span style=\"font-size: 11pt;font-family: 'Georgia','serif'\"> <\/span><\/span><\/span><\/span><span style=\"font-size: 11pt;font-family: 'Georgia','serif'\"><span style=\"font-size: 11pt;font-family: 'Georgia','serif'\"><span style=\"font-size: 11pt;font-family: 'Georgia','serif'\"><\/span><\/span><\/span><span style=\"font-size: 11pt;font-family: 'Georgia','serif'\"><span style=\"font-size: 11pt;font-family: 'Georgia','serif'\"><span style=\"font-size: 11pt;font-family: 'Georgia','serif'\"><\/span><\/span><\/span><\/p>\n<p class=\"MsoNormal\" style=\"margin: 0in 0in 0pt\"><span style=\"font-family: 'Georgia','serif'\">Figure 3: GOES-12 ice particle size on 10 March 2010 at 2115 UTC. Small particles are blue, medium sized are yellow, and large are red.<br \/>\n<\/span><\/p>\n<p class=\"MsoNormal\" style=\"margin: 0in 0in 0pt\">\n<p class=\"MsoNormal\" style=\"margin: 0in 0in 0pt\"><span style=\"font-family: 'Georgia','serif'\"><span style=\"font-size: 11pt;font-family: 'Georgia','serif'\"><br \/>\nBoth the 10.7 and 3.9 images are used to retrieve ice<span> <\/span>particle size, results are shown in Figure 3. In this figure, the largest particles are represented by red, while the smallest particles are represented by blue. A comparison between Figures 2 and 3 shows that the smallest particles are the most reflective. An open question is, <strong><em>\u201cWhat can one infer about the behavior of a storm based on the reflective nature of the anvil of the storm?\u201d<\/em><\/strong> Figure 4 shows the base reflectivity from Shreveport, LA at approximately the same time as the satellite imagery.<\/span><\/span><\/p>\n<p class=\"MsoNormal\" style=\"margin: 0in 0in 0pt\"><span style=\"font-family: 'Georgia','serif'\"><\/span><\/p>\n<p class=\"MsoNormal\" style=\"margin: 0in 0in 0pt\"><span style=\"font-family: 'Georgia','serif'\"><span style=\"font-size: 11pt;font-family: 'Georgia','serif'\"><span style=\"font-size: 11pt;font-family: 'Georgia','serif'\"><a title=\"Radar\" href=\"https:\/\/rammb2.cira.colostate.edu\/visit-blog\/wp-content\/uploads\/sites\/5\/2010\/03\/mar102010_032411.jpg\"><img decoding=\"async\" src=\"https:\/\/rammb2.cira.colostate.edu\/visit-blog\/wp-content\/uploads\/sites\/5\/2010\/03\/mar102010_032411.jpg\" alt=\"Radar\" \/><\/a><\/span><\/span><\/span><\/p>\n<p class=\"MsoNormal\" style=\"margin: 0in 0in 0pt\"><span style=\"font-family: 'Georgia','serif'\"><span style=\"font-size: 11pt;font-family: 'Georgia','serif'\"><span style=\"font-size: 11pt;font-family: 'Georgia','serif'\"><span style=\"font-size: 11pt;font-family: 'Georgia','serif'\">Figure 4: Shreveport, LA radar base reflectivity on 10 March 2010 at 2118 UTC.<\/span><\/span><\/span><\/span><\/p>\n<p><span style=\"font-family: 'Georgia','serif'\"> <\/span><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Jeff Braun, Louie Grasso and Dan Lindsey Figure 1: GOES-12 10.7 \u00b5m on 10 March 2010 at 2115 UTC. Color table shows enhances temperatures in Celsius. On the afternoon of 10 March 2010, thunderstorms developed over northeast Texas. These storms moved northeastward into southwest Arkansas. A GOES-12 10.7 \u00b5m image at 2115 UTC shows the <a href=\"https:\/\/rammb2.cira.colostate.edu\/visit-blog\/2010\/03\/17\/severe-thunderstorms-over-southwest-arkansas-on-10-march-2010\/\" class=\"more-link\">Continue Reading<\/a><\/p>\n","protected":false},"author":43,"featured_media":0,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[47,28,29],"tags":[56,65,138,178,231,245],"class_list":["post-171","post","type-post","status-publish","format-standard","hentry","category-geostationary-satellite-discussion","category-satellites","category-severe-weather","tag-56","tag-arkansas","tag-goes-12","tag-march","tag-severe","tag-thunderstorms"],"_links":{"self":[{"href":"https:\/\/rammb2.cira.colostate.edu\/visit-blog\/wp-json\/wp\/v2\/posts\/171","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/rammb2.cira.colostate.edu\/visit-blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/rammb2.cira.colostate.edu\/visit-blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/rammb2.cira.colostate.edu\/visit-blog\/wp-json\/wp\/v2\/users\/43"}],"replies":[{"embeddable":true,"href":"https:\/\/rammb2.cira.colostate.edu\/visit-blog\/wp-json\/wp\/v2\/comments?post=171"}],"version-history":[{"count":1,"href":"https:\/\/rammb2.cira.colostate.edu\/visit-blog\/wp-json\/wp\/v2\/posts\/171\/revisions"}],"predecessor-version":[{"id":6165,"href":"https:\/\/rammb2.cira.colostate.edu\/visit-blog\/wp-json\/wp\/v2\/posts\/171\/revisions\/6165"}],"wp:attachment":[{"href":"https:\/\/rammb2.cira.colostate.edu\/visit-blog\/wp-json\/wp\/v2\/media?parent=171"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/rammb2.cira.colostate.edu\/visit-blog\/wp-json\/wp\/v2\/categories?post=171"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/rammb2.cira.colostate.edu\/visit-blog\/wp-json\/wp\/v2\/tags?post=171"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}