AWIPS images of GOES-13 0.63 µm visible channel data (above; click image to play animation) showed that 17 May 2011 was a generally cloud-free day over the state of Wisconsin.However, the GOES-13 6.5 µm “water vapor channel” images (below; click image to play animation) displayed a series of well-defined “dry cyclonic swirls”... Read More
McIDAS images of 4-km resolution GOES-13 6.5 µm water vapor channel data (above; click image to play animation) showed a well-defined warm/dry “arc” feature (denoted by the brighter yellow color enhancement) just upwind of a large Mesoscale Convective System (MCS) that was moving eastward along the northern Gulf of Mexico... Read More
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 4-km resolution GOES-13 6.5 µm “water vapor channel” data (above; click image to play animation) revealed an extensive “mountain wave signature” across much of the Mid-Atlantic region of the US on 19 February 2011. Strong winds (gusting to 71 mph in Virginia and 63 mph in Maryland and Pennsylvania)... Read More
