The Galeras volcano in Colombia (located in the Andes Mountains near Colombia’s border with Ecuador) experienced an explosive eruption around 00:43 UTC on 03 January 2010 (Washington VAAC advisory messages). McIDAS images of the GOES-11, GOES-14, and GOES-12 10.7 µm IR (top 3 panels) and 6.7/6.5 µm water vapor channel data (bottom 3 panels)... Read More

AWIPS images of the 1-km resolution MODIS 11.0 µm IR and the 4-km resolution GOES-12 10.7 µm IR channel data (above) showed that large portions of northwestern Minnesota and eastern North Dakota exhibited surface IR brightness temperatures colder than -40º F (-40º C) at 08:45 UTC (2:45 am local time) on... Read More

McIDAS images of GOES-14 and GOES-12 visible channel data (above) showed that a large portion of the land-fast ice in the southern half of Green Bay began to break away and drift slowly northeastward on 27 December 2009. Unlike a similar case seen on 11 March 2009 with strong surface winds, the southwesterly winds... Read More

An intense blizzard affected much of the central US on 24 December – 25 December 2009, significantly disrupting travel and commerce from North Dakota to Texas. Oklahoma City OK received 14.1 inches of snow, which was both their greatest 24-hour snowfall and their greatest storm total snowfall on record. McIDAS images of the... Read More