Water vapor imagery from Monday 4 April 2011 over the Gulf of Alaska shows the development of what appears to be Kelvin-Helmholtz instability, an instability that occurs in regions of strong shear. In this case, the shear zone occurs within a gradient of moisture along the edge of a polar... Read More

McIDAS images of GOES-11 0.65 µm visible channel data (above; click image to play animation) showed a number of well-defined ship condensation trails (or “ship tracks”) propagating southward within the marine boundary layer stratocumulus cloud field over the eastern North Pacific Ocean on 31 March 2011.A comparison of AWIPS images of 1-km... 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