Credit: Imagery courtesy of Brad Pierce, NOAA Satellite and Information Service Center for Satellite Applications and Research.
The satellite image for April 27, 2011 shows the southeastern United States, Central America and the Gulf of Mexico—along with tornado tracks (red solid lines, with the thickest indicating a magnitude 5 tornado, descending to magnitude 1 for the thinnest—for the period April 26-28, 2011. Yellow markers indicate fires, and an iridescent overlay shows particulate matter in the air, with red showing highest amount and purple the lowest.