AWIPS images of POES AVHRR 0.86 µm visible channel data (above) revealed a pair of von Karman vortices streaming southward from the Aleutian Islands of Alaska on 14 April 2011. In this 2-image comparison, note that the cloud features were moving, but the ice in the Bering Sea remained stationary.An... Read More

McIDAS images of GOES-11 0.65 µm visible channel data (above; click image to play animation) showed an interesting “dark plume” feature that was moving in an arc from far northeastern Russia, across the East Siberian Sea and Chukchi Sea, and finally over far northwestern Alaska on 16 March – 17... Read More

  A fissure eruption on the Kilauea volcano on the island of Hawaii began on 05 March 2011 — and 3 days later, McIDAS images of GOES-11 3.9 µm shortwave IR data (above; click image to play animation) displayed a prominent “hot spot” (yellow to red enhanced pixels) during the day... Read More

The North Slope region of far northern Alaska had been abnormally cold for a number of days in late January 2011: for example, Barrow had minimum temperatures of -43ºF / -42ºC and -45ºF / -43ºC on 23 January and 24 January, respectively (the normal low temperature on those days is... Read More