A series of volcanic eruptions from Sarychev Peak (located in the central Kiril Islands) began on 10-11 June 2009, and GOES-11 “split window” IR difference images (above) showed a good signature of one of the ash plumes (yellow to cyan color enhancement) as it began to move eastward across the North... Read More

The Mt. Redoubt volcano (located about 100 miles southwest of Anchorage, Alaska) produced a series of explosive eruptions beginning around 06:38 UTC on 23 March 2009. GOES-11 10.7 µm IR images (above) showed a few of the volcanic eruption clouds, which exhibited IR... Read More

Beginning in October 2008,  “high density winds” (also known as Atmospheric Motion Vectors, or AMVs) derived from the Japanese geostationary  Multi-functional Transport Satellite (MTSAT-1R, which is positioned over the Equator at 140º East longitude) were added to the NOAAPORT Satellite Broadcast Network (SBN). National Weather Service... Read More

Hat-tip to blog reader Boris Konon for sending us this in an email:Noted a large area of extremely cold cloud tops on a thunderstorm complex over northern Australia 17-23z 11/22.  So cold it went off our IR color table scale we use here at WSI for MTSAT!MTSAT-1R Infrared (10.8... Read More