{"id":651,"date":"2008-05-04T23:55:45","date_gmt":"2008-05-04T23:55:45","guid":{"rendered":"http:\/\/cimss.ssec.wisc.edu\/satellite-blog\/archives\/651"},"modified":"2008-05-07T15:54:47","modified_gmt":"2008-05-07T15:54:47","slug":"heavy-snow-in-the-black-hills-region","status":"publish","type":"post","link":"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/archives\/651","title":{"rendered":"Heavy snow in the Black Hills region"},"content":{"rendered":"

\"GOES-12<\/a><\/p>\n

AWIPS images of the GOES-12 6.5 \u00c2\u00b5m “water vapor” channel (above)<\/strong><\/em> showed the development of late-season winter storm that produced heavy snowfall and blizzard conditions (with wind gusts to 64 mph or 29 m s-1 at Rapid City SD)<\/em> across the Black Hills region and surrounding portions of eastern Wyoming, southeastern Montana, and western South Dakota during the 30 April through 02 May 2008 period. A closer view using GOES-12 10.7 \u00c2\u00b5m IR images<\/strong><\/a> reveals that there were a number of cloud-to-ground lightning strikes during various phases of the storm’s development, as large convective elements formed and intensified upwind of the Black Hills.<\/p>\n

\"MODIS<\/a><\/p>\n

A MODIS true color image (above, <\/strong>viewed using Google Earth<\/a>)<\/strong><\/em> shows the areal extent of the snow cover on 03 May 2008<\/strong><\/a>, as well as the locations of the heaviest total snowfall amounts: 54.5 inches<\/strong> (138 cm)<\/em> at Lead SD, and 24.0 inches<\/strong> (61 cm)<\/em> at Sundance WY.<\/p>\n

\"MODIS<\/a><\/p>\n

A comparison of MODIS true color and false color images from 03 May (above)<\/strong><\/em> demonstrates how the false color imagery (which uses the MODIS 2.1 \u00c2\u00b5m near-IR channel)<\/em> can differentiate between snow cover (which, along with ice crystal clouds and ice-covered lakes, appear as cyan-colored features)<\/em> and supercooled water droplet clouds (which appear as shades of white).<\/em><\/p>\n

Consecutive daily MODIS false color images from 02, 03, and 04 May (below)<\/strong><\/em> show that the snow cover was melting rapidly under the influence of the strong May sun. The 54.5 inches of snow that fell at Lead SD had a liquid equivalent of 4.64 inches<\/strong> (12 cm),<\/em> so the rapid snowmelt led to a quick rise of creeks and streams that caused some flooding problems.<\/p>\n

\"MODIS<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"

AWIPS images of the GOES-12 6.5 \u00c2\u00b5m “water vapor” channel (above) showed the development of late-season winter storm that produced heavy snowfall and blizzard conditions (with wind gusts to 64 mph or 29 m s-1 at Rapid City SD) across the Black Hills region and surrounding portions of eastern Wyoming, southeastern Montana, and western South […]<\/p>\n","protected":false},"author":18,"featured_media":0,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[19,32,16,30,12,5],"tags":[],"class_list":["post-651","post","type-post","status-publish","format-standard","hentry","category-goes-12","category-google-earth","category-heavy-rain-flooding","category-lightning","category-modis","category-winter-weather"],"acf":[],"_links":{"self":[{"href":"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-json\/wp\/v2\/posts\/651","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=651"}],"version-history":[{"count":0,"href":"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-json\/wp\/v2\/posts\/651\/revisions"}],"wp:attachment":[{"href":"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-json\/wp\/v2\/media?parent=651"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-json\/wp\/v2\/categories?post=651"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-json\/wp\/v2\/tags?post=651"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}