McIDAS images of GOES-13 0.63 µm visible channel data (above; click image to play animation) revealed a well-defined mesovortex moving southeastward across the southern part of Lake Superior during the day on 15 December 2013. As the feature approached the Upper Peninsula of... Read More

A large and strong cyclone was intensifying in the North Atlantic Ocean just south of Greenland on 12 December 2013. GOES-13 6.5 µm water vapor channel images with 06 UTC, 12 UTC, 18 UTC, and 00 UTC surface analyses and surface reports (above) showed that the central pressure of the... Read More

A sequence of images of the satellite-wind-derived 850 hPa relative vorticity product at 6-hour intervals covering the period 04 October to 09 October 2013 (above; click image to play animation)... Read More

McIDAS images of MTSAT-2 10.8 µm IR channel data (above; click image to play animation) showed Super Typhoon Usagi in the West Pacific Ocean as it continued to move northwestward across the Philippine Sea. Note the slight amount of “trochoidal wobble” seen in the path of the eye. The coldest... Read More