AWIPS images of the 1-km resolution MODIS fog/stratus product and the 4-km resolution GOES-12 fog/stratus product (above) demonstrate the advantage of higher spatial resolution for the detection of widespread small-scale fingers of valley fog that had formed during the overnight hours over much of the southern Appalachian Mountains states on... Read More

GOES-12 visible channel images (above) showed advection fog that developed over Lake Michigan during the day on 07 May 2009. As pointed out on the US Air Quality (aka The Smog Blog) site,  this fog... Read More

AWIPS images of the 4-km resolution GOES-11 fog/stratus product and the 1-km resolution MODIS fog/stratus product (above) showed widespread fog and stratus clouds in the central valleys of California as well as over the adjacent offshore waters of the Pacific Ocean on 08 January 2009. With the finer spatial resolution of the... Read More

AWIPS images of the  GOES-13 fog/stratus product (above) showed a patch of stratus cloud that developed quickly as it moved northeastward across southern Wisconsin during the pre-dawn hours on 06 January 2009. In advance of this cloud feature, air temperatures were dropping off as clear skies and light winds were promoting strong... Read More