The tornado outbreak that affected much of the Southeast US on 27 April 2011 was one of historic proportions, in terms of the number of strong to violent tornadoes produced and the number of resulting fatalities. McIDAS images of 1-km resolution GOES-13 0.63 µm visible channel data (above; click image to play animation;... Read More

McIDAS images of GOES-13 0.63 µm visible channel data (above; click image to play animation) showed an excellent example of an undular bore propagating southeastward off the coast of Texas and out over the Gulf of Mexico on 27 April 2011. This bore exhibited multiple wave fronts, with as many as 10-15... Read More