{"id":36500,"date":"2020-05-03T23:59:58","date_gmt":"2020-05-03T23:59:58","guid":{"rendered":"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/?p=36500"},"modified":"2020-05-05T03:12:53","modified_gmt":"2020-05-05T03:12:53","slug":"severe-weather-from-the-midwest-to-the-mid-south","status":"publish","type":"post","link":"https:\/\/cimss.ssec.wisc.edu\/satellite-blog\/archives\/36500","title":{"rendered":"Derecho causing severe weather from the Midwest to the Mid-South"},"content":{"rendered":"

\"GOES-16<\/a>

GOES-16 “Red” Visible (0.64 \u00b5m)<\/em> images, with time-matched SPC Storm Reports plotted in red [click to play animation | MP4<\/strong><\/a>]<\/p><\/div>1-minute Mesoscale Domain Sector<\/strong><\/a> GOES-16 (GOES-East)<\/em> “Red” Visible (0.64 \u00b5m<\/strong><\/a>) images (above)<\/strong> <\/em>showed a long-lived Mesoscale Convective System (MCS) or derecho<\/strong><\/a> that produced a swath of large hail and damaging winds (SPC Storm Reports<\/strong><\/a> | NWS Nashville<\/a><\/strong>) from eastern Kansas to central Tennessee, northern Mississippi and northern Alabama on 03 May 2020<\/strong><\/a>.<\/p>\n

The corresponding GOES-16 “Clean” Infrared Window (10.35 \u00b5m<\/strong><\/a>) images are shown below. Pulsing overshooting tops exhibited cloud-top infrared brightness temperatures around -70\u00baC (black enhancement)<\/em>.<\/p>\n

\"GOES-16<\/a>

GOES-16 “Clean” Infrared Window (10.35 \u00b5m)<\/em> images, with time-matched SPC Storm Reports plotted in cyan [click to play animation | MP4<\/strong><\/a>]<\/p><\/div>

\"NOAA-20<\/a>

NOAA-20 VIIRS Visible (0.64 \u00b5m<\/em>) and Infrared Window (11.45 \u00b5m)<\/em> images, with plots of available NUCAPS sounding points [click to enlarge]<\/p><\/div>A toggle between NOAA-20 VIIRS Visible (0.64 \u00b5m) and Infrared Window (11.45 \u00b5m) images (above)<\/strong><\/em> included plots of available NUCAPS sounding points. The temperature and dew point profiles for the green sounding point south-southeast of Jackson, Tennessee (station identifier KMKL)<\/em> revealed a very unstable air mass in the pre-convective environment just ahead of the approaching MCS (below)<\/strong><\/em>.<\/p>\n

\"Temperature<\/a>

Temperature and dew point profiles for the NUCAPS sounding point south-southeast of Jackson,Tennessee [click to enlarge]<\/p><\/div>\n

<\/p>\n
\n

Journey of a long-lived damaging mesoscale convective system (aka derecho) from the plains to the south today. #GOESEast<\/a> split window IR and cold cloud top filtered longwave IR imagery, 17 hour lapse. Feature following zoom 40kts@098 @NOAASatellites<\/a> @GOESguy<\/a> pic.twitter.com\/Ndp9iFnyXP<\/a><\/p>\n

\u2014 William (@ChurchillWx) May 4, 2020<\/a><\/p><\/blockquote>\n