{"id":27132,"date":"2018-02-24T23:59:23","date_gmt":"2018-02-24T23:59:23","guid":{"rendered":"http:\/\/cimss.ssec.wisc.edu\/satellite-blog\/?p=27132"},"modified":"2018-02-26T21:15:56","modified_gmt":"2018-02-26T21:15:56","slug":"severe-weather-in-the-mid-south-and-heavy-snow-in-the-upper-midwest","status":"publish","type":"post","link":"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/archives\/27132","title":{"rendered":"Severe weather in the Mid-South, and heavy snow in the Upper Midwest"},"content":{"rendered":"

\"GOES-16<\/a>

GOES-16 Mid-level Water Vapor (6.9 \u00b5m)<\/em> images, with hourly plots of surface weather type [click to play Animated GIF | MP4<\/strong><\/a> also available]<\/p><\/div>GOES-16 (GOES-East)<\/em> Mid-level Water Vapor (6.9 \u00b5m<\/strong><\/a>) images (above)<\/strong><\/em> showed the flow of moisture from the lower Mississippi Valley into the Ohio Valley on 24 February 2018<\/strong><\/a> — this fueled the development of flooding rainfall and severe thunderstorms<\/strong><\/a> (for more details, see the Satellite Liaison Blog<\/strong><\/a>). A special 21 UTC sounding<\/strong><\/a> from Little Rock AR indicated 37.3 mm or 1.47 inches of Total Precipitable Water (TPW) within the atmospheric column.<\/p>\n

1-minute interval Mesoscale Sector<\/a><\/strong> GOES-16 “Red” Visible (0.64 \u00b5m<\/strong><\/a>) and “Clean” Infrared Window (10.3 \u00b5m<\/strong><\/a>) images (below)<\/strong> <\/em>revealed the development of a small supercell thunderstorm just north of the Kentucky\/Tennessee border — this storm produced an EF-2\u00a0 tornado that was responsible for 1 fatality (NWS Louisville damage survey<\/strong><\/a>). This (along with another in Arkansas) was the first US tornado-related death in 283 days (a new record in terms of length), with the last occurring in Wisconsin on 16 May 2017<\/strong><\/a>.<\/p>\n

\"GOES-16<\/a>

GOES-16 “Red” Visible (0.64 \u00b5m, left)<\/em> and “Clean” Infrared Window (10.3 \u00b5m, right)<\/em> images, with hourly surface reports plotted in yellow and SPC storm reports plotted in red [click to play Animated GIF | MP4<\/strong><\/a> also available]<\/p><\/div>Farther to the north, bands of elevated convection (oriented generally west to east) developed across Minnesota and Wisconsin, as seen in GOES-16 Visible (0.64 \u00b5m) and Infrared Window (10.3 \u00b5m) images (below)<\/strong><\/em>. Snowfall rates were 1-2 inches per hour at some locations, with many storm total accumulations<\/strong><\/a> of 7 to 9 inches. Note the small-scale “ripple structure” that was present along the tops of many of these convective bands (orthogonal to the long axis of each band).<\/p>\n

\"GOES-16<\/a>

GOES-16 “Red” Visible (0\/64 \u00b5m) images [click to play animation]<\/p><\/div>

\"GOES-16<\/a>

GOES-16 “Clean ” Infrared Widow (10.3 \u00b5m) images [click to play animation]<\/p><\/div>Comparisons of Terra and Aqua MODIS Visible (0.65 \u00b5m) and Infrared Window (11.0 \u00b5m) images (below)<\/strong><\/em> also showed these bands of elevated convection that helped to enhance snowfall rates. The layer of instability aloft was evident on the 00 UTC sounding<\/strong><\/a> from Chanhassen MN.<\/p>\n

\"Terra<\/a>

Terra MODIS Visible (0.65 \u00b5m) and Infrared Window (11.0 \u00b5m) images [click to enlarge]<\/p><\/div>

\"Aqua<\/a>

Aqua MODIS Visible (0.65 \u00b5m) and Infrared Window (11.0 \u00b5m) images [click to enlarge]<\/p><\/div><\/p>\n","protected":false},"excerpt":{"rendered":"

GOES-16 (GOES-East) Mid-level Water Vapor (6.9 \u00b5m) images (above) showed the flow of moisture from the lower Mississippi Valley into the Ohio Valley on 24 February 2018 — this fueled the development of flooding rainfall and severe thunderstorms (for more details, see the Satellite Liaison Blog). A special 21 UTC sounding from Little Rock AR […]<\/p>\n","protected":false},"author":18,"featured_media":27134,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[70,74,12,3,71,5],"tags":[],"class_list":["post-27132","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-aqua","category-goes-16","category-modis","category-severe-convection","category-terra","category-winter-weather"],"acf":[],"_links":{"self":[{"href":"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-json\/wp\/v2\/posts\/27132","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=27132"}],"version-history":[{"count":17,"href":"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-json\/wp\/v2\/posts\/27132\/revisions"}],"predecessor-version":[{"id":27152,"href":"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-json\/wp\/v2\/posts\/27132\/revisions\/27152"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-json\/wp\/v2\/media\/27134"}],"wp:attachment":[{"href":"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-json\/wp\/v2\/media?parent=27132"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-json\/wp\/v2\/categories?post=27132"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/wp-json\/wp\/v2\/tags?post=27132"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}