{"id":6246,"date":"2010-07-25T23:59:58","date_gmt":"2010-07-25T23:59:58","guid":{"rendered":"http:\/\/cimss.ssec.wisc.edu\/satellite-blog\/?p=6246"},"modified":"2017-07-19T15:06:52","modified_gmt":"2017-07-19T15:06:52","slug":"large-hail-damage-swath-acrosss-northwestern-south-dakota","status":"publish","type":"post","link":"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/archives\/6246","title":{"rendered":"Large hail damage swath acrosss northwestern South Dakota"},"content":{"rendered":"
\"GOES-13<\/a>

GOES-13 10.7 \u00b5m IR images<\/p><\/div>\n

Several days before the largest hailstone on record in the US<\/a><\/strong> fell in central South Dakota, McIDAS images of 4-km resolution GOES-13 10.7 \u00b5m IR data (above)<\/em><\/strong> showed a cluster of severe thunderstorms that propagated southeastward across far northwestern South Dakota on 19 July 2010<\/a><\/strong>. From a satellite perspective, this convection did not appear to be unusually intense in terms of cold IR cloud top brightness temperatures (only as cold as -63\u00ba C<\/strong>, darker red color enhancement)<\/em> or any “enhanced-V” or other typical severe storm top signatures, but it nonetheless produced a long-duration wind and hail event that resulted in a remarkably long and wide hail damage path.<\/p>\n

This wind-driven hail damage path can be seen on the comparison of three 250-meter resolution MODIS true color Red\/Green\/Blue (RGB) images (created using bands 4\/3\/1) from 15 July (4 days before the event),<\/em> 20 July (one day after the event),<\/em> and 25 July (6 days after the event)<\/em> acquired from the SSEC MODIS Today<\/a><\/strong> site. The hail damage swath appears as the distinct broad tan-colored feature that is oriented from northwest to southeast. According to the SPC Storm Reports<\/a><\/strong>, the largest hail size was 2.50 inches in diameter, and the maximum wind gust was 70 mph in that particular region. However, a number of the storm reports mentioned a wind-driven hail duration of 15-30 minutes, which exacerbated the crop damage. One storm report mentioned “1150 acres of corn stripped”.<\/p>\n

\"MODIS<\/a>

MODIS true color RGB images from 15 July, 20 July, and 25 July 2010<\/p><\/div>\n

According to Matt Bunkers (SOO at the NWS forecast office at Rapid City SD<\/strong><\/a>), this event \"started with two HP supercells across southeastern Montana which then merged into a bow echo across western South Dakota\".<\/tt> These 2 distinct storms in southeastern Montana show up with better clarity on the 1-km resolution NOAA-18 10.8 \u00b5m IR image compared to the 4-km resolution GOES-13 10.7 \u00b5m IR image (below)<\/strong><\/em>. The cloud-top IR brightness temperatures are also significantly colder on the NOAA-18 image (-61\u00ba C)<\/strong> than on the GOES-13 image (-52\u201c C)<\/strong>.<\/p>\n

\"NOAA-18<\/a>

NOAA-18 10.8 \u00b5m IR and GOES-13 10.7 \u00b5m IR images<\/p><\/div>\n

A false-color RGB image (created using NOAA-18 AVHRR channels 01\/02\/04)<\/em> is shown below.<\/p>\n

\"NOAA-18<\/a>

NOAA-18 false-color RGB image<\/p><\/div>\n","protected":false},"excerpt":{"rendered":"

Several days before the largest hailstone on record in the US fell in central South Dakota, McIDAS images of 4-km resolution GOES-13 10.7 \u00b5m IR data (above) showed a cluster of severe thunderstorms that propagated southeastward across far northwestern South Dakota on 19 July 2010. From a satellite perspective, this convection did not appear to […]<\/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":[22,10,11,12,26,45,3],"tags":[],"class_list":["post-6246","post","type-post","status-publish","format-standard","hentry","category-avhrr","category-general-interpretation","category-goes-13","category-modis","category-poes","category-redgreenblue-rgb-images","category-severe-convection"],"acf":[],"_links":{"self":[{"href":"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-json\/wp\/v2\/posts\/6246","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=6246"}],"version-history":[{"count":14,"href":"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-json\/wp\/v2\/posts\/6246\/revisions"}],"predecessor-version":[{"id":24526,"href":"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-json\/wp\/v2\/posts\/6246\/revisions\/24526"}],"wp:attachment":[{"href":"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-json\/wp\/v2\/media?parent=6246"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-json\/wp\/v2\/categories?post=6246"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-json\/wp\/v2\/tags?post=6246"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}