{"id":14803,"date":"2014-01-17T20:59:03","date_gmt":"2014-01-17T20:59:03","guid":{"rendered":"http:\/\/cimss.ssec.wisc.edu\/satellite-blog\/?p=14803"},"modified":"2014-01-18T08:45:28","modified_gmt":"2014-01-18T08:45:28","slug":"mesoscale-streaks-of-snow-cover-across-iowa","status":"publish","type":"post","link":"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/archives\/14803","title":{"rendered":"Mesoscale streaks of snow cover across Iowa and Missouri"},"content":{"rendered":"
\"Suomi<\/a>

Suomi NPP VIIRS 0.64 \u00c2\u00b5m visible channel and False-color RGB images<\/p><\/div>\n

A comparison of AWIPS images of Suomi NPP VIIRS 0.64 \u00c2\u00b5m visible channel data with the corresponding false-color “snow-vs-cloud discrimination” Red\/Green\/Blue (RGB) product (above)<\/strong><\/em> revealed numerous northwest-to-southeast oriented mesoscale bands of snow on the ground (varying shades of red on the RGB image)<\/em> across much of Iowa extending into northern Missouri at 18:30 UTC or 12:30 PM local time on 17 January 2014. Some of these bands of snow cover appeared to be only about 10 miles wide!<\/p>\n

The disturbance that created these snow bands moved across the region on the previous day (16 January<\/strong><\/a>) — GOES-13 0.63 \u00c2\u00b5m visible channel images (below; click image to play animation)<\/strong><\/em> showed the development of a feature that resembled a “mesoscale squall line” which propagated southeastward across Iowa during the daylight hours. Surface METAR observations showed the strong winds (gusting to over 50 mph at a few sites)<\/em> which created blizzard conditions as the fresh snowfall was easily lofted from the ground. Note that there was even one negative cloud-to-ground lightning strike noted just west of Des Moines (station identifier KDSM)<\/em> at 21:45 UTC or 3:45 PM local time, indicating the presence of convective elements within the squall line which led to enhanced snowfall rates — in fact, the maximum snowfall reported from this fast-moving system was 3.1 inches at Des Moines (where surface visibility was reduced to 1\/16 mile with thundersnow).<\/p>\n

\"GOES-13<\/a>

GOES-13 0.63 \u00c2\u00b5m visible channel images, with surface reports and cloud-to-ground lightning strikes [click to play animation]<\/p><\/div>For a radar animation of the feature, see this NWS Des Moines event summary<\/strong><\/a>.<\/p>\n","protected":false},"excerpt":{"rendered":"

A comparison of AWIPS images of Suomi NPP VIIRS 0.64 \u00c2\u00b5m visible channel data with the corresponding false-color “snow-vs-cloud discrimination” Red\/Green\/Blue (RGB) product (above) revealed numerous northwest-to-southeast oriented mesoscale bands of snow on the ground (varying shades of red on the RGB image) across much of Iowa extending into northern Missouri at 18:30 UTC or […]<\/p>\n","protected":false},"author":18,"featured_media":14807,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[11,45,49,48,5],"tags":[],"class_list":["post-14803","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-goes-13","category-redgreenblue-rgb-images","category-suomi_npp","category-viirs","category-winter-weather"],"acf":[],"_links":{"self":[{"href":"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-json\/wp\/v2\/posts\/14803","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=14803"}],"version-history":[{"count":6,"href":"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-json\/wp\/v2\/posts\/14803\/revisions"}],"predecessor-version":[{"id":14811,"href":"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-json\/wp\/v2\/posts\/14803\/revisions\/14811"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-json\/wp\/v2\/media\/14807"}],"wp:attachment":[{"href":"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-json\/wp\/v2\/media?parent=14803"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-json\/wp\/v2\/categories?post=14803"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-json\/wp\/v2\/tags?post=14803"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}