The first -40º F (-40º C) or colder surface air temperatures of the 2010-2011 winter season occurred on 30 November 2010 (the last day of the 2010 Atlantic Ocean Tropical Cyclone Season). A McIDAS image of NOAA-15 AVHRR 10.8 µm IR channel data (above) shows a signal of the coldest... Read More
A comparison of AWIPS images of the 1-km resolution POES AVHRR 0.86 µm visible channel, 12.0 µm IR channel, Cloud Top Temperature product, Cloud Type product, Cloud Top Height product, Cloud Optical Depth product, and Cloud Particle Effective Radius product (above) demonstrated that... Read More
A persistent ridge of high pressure aloft was keeping the interior of Alaska unusually cloud-free, as was evident on McIDAS images of GOES-11 0.65 µm visible channel data on 19 September 2010 (above). Temperatures at many stations across the region had been averaging about 10 degrees F above normal during... Read More
McIDAS images of GOES-11 0.65 µm visible channel data (above) revealed the southern edge of the ice in the Beaufort Sea (north of Alaska and Canada’s Yukon and Northwest Territories) on 18 August 2010.A closer view using a 1-km resolution NOAA-18 AVHRR false color Red/Green/Blue (RGB) image (below) showed that... Read More
