CIMSS Satellite Blog

SPC preliminary storm reports [click map for complete listing]

As shown above, a widespread outbreak of severe weather occurred on 23 December – 24 December 2015 (surface analysis maps), centered on the Mississippi Valley and Ohio Valley regions of the US. There were at least 14 fatalities in Mississippi, Tennessee, and Arkansas — and initial analysis suggests that there was one long-track tornado that was on the ground for nearly 150 miles from northern Mississippi to western Tennessee (below).

A preliminary damage track from the exceptionally long-track, violent tornado today. Keep N. MS in your thoughts. http://pic.twitter.com/t8XNso7V6Y

— NWS Memphis (@NWSMemphis) December 24, 2015

Daytime GOES-13 (GOES-East) Visible (0.63 µm, 1-km resolution) images on 23 December (below) showed the development of several lines of severe thunderstorms — some with bowing segments — with many exhibiting signatures of well-defined overshooting tops.

GOES-13 Visible (0.63 µm) images [click to play animation]

Longer animations of GOES-13 Infrared (10.7 µm, 4-km resolution) and Water Vapor (6.5 µm, 4-km resolution) images that extended into the nighttime hours of the severe weather outbreak are shown below.

GOES-13 Infrared (10.7 µm) images [click to play animation]

GOES-13 Water Vapor (6.5 µm) images [click to play animation]

from CIMSS Satellite Blog http://ift.tt/1mCQ9zL