AWIPS images of the MODIS fog/stratus product (above) and the corresponding GOES-12 fog/stratus product (below) revealed areas of fog that were forming in the valleys of Pennsylvania and New York around 08 UTC (4am local time) on 17 September 2007. The 1-km resolution MODIS imagery offered a more detailed view of the... Read More

The low-lying areas of the Wisconsin River and other tributaries that drain into the upper Mississippi River are favored areas for nocturnal valley fog formation, as shown by the MODIS “fog/stratus product” and topography image comparison (above).AWIPS images of the MODIS and GOES-12 fog/stratus product from 29 July 2007 (below) demonstrated important differences... Read More

A shallow bank of fog and stratus cloud was moving southward along the Delaware/Maryland/Virginia coast during the pre-dawn and early morning hours on 03 April 2007. GOES-12 3.9µm InfraRed (IR) imagery (above; Read More

The effect of the topography in western South Dakota and eastern Wyoming was very obvious on 19 March 2007, as low-altitude stratus clouds were forced to move around the higher elevation portions of the Black Hills (GOES-11 visible images:... Read More