McIDAS images of MTSAT-2 10.8 µm IR channel images (above; click image to play animation) showed the formation of a large and well-defined eye as Super Typhoon 17W (Sanba) intensified over the West Pacific Ocean on 13 September 2012.A plot of the CIMSS Advanced Dvorak... Read More

When two tropical cyclones are within close proximity to each other, they will typically start a rotation around a common center. This interaction, called the Fujiwhara Effect, may be occurring in the image loop above. Typhoon Bolaven approaches Typhoon Tembin, and the distance between the two reaches a minimum on... Read More

Mount Tongariro in New Zealand (on the North Island) erupted on Monday, August 6th, for the first time in a century. A Suomi-NPP overpass at 12:52 UTC, approximately one hour after the eruption, allowed the day-night band to capture an image of the volcanic plume as it moved eastward across... Read More

An annular eclipse of the sun took place on May 21, 2012, and its shadow was visible from satellite imagery (A previous example from this blog is here). The loop above shows MTSAT imagery; the shadow of the eclipse emerges shortly after sunrise and tracks northeastward into the Pacific Ocean.... Read More