A pair of interesting “Figure 8” aircraft condensation trails (or “contrails”) could be seen on a 1-km resolution POES AVHRR 10.8 µm “IR window” image over eastern North Dakota on 07 March 2011 (above). The contrails appeared slightly colder (brighter white) than the... Read More

  AWIPS images of 1-km resolution GOES-13 0.63 µm visible channel data (above; click image to play animation) revealed the formation of convergence bands withing a weak cyclonic circulation over western Lake Superior on 07 March 2011. These convergence bands were responsible for producing... Read More