A large Mesoscale Convective System (MCS) developed over far northeastern Oklahoma during the pre-dawn hours on 04 June 2012, which eventually produced a Mesoscale Convective Vortex (MCV) that moved into northwestern Arkansas the following morning. AWIPS images of 4-km resolution GOES-13 10.7 µm... Read More
AWIPS images of 10-km resolution GOES-13 sounder Total Precipitable Water (TPW) derived product imagery (above) and the corresponding GOES-13 sounder Convective Available Potential Energy (CAPE) derived product imagery (below) showed that moisture (TPW values as high as 45 mm or 1.78 inches near Saint Louis, Missouri at 16 UTC) and... Read More
A historic late-April “nor’easter” storm affected much of the northeastern US during the 22 April – 23 April 2012 period. This storm produced heavy snowfall (as much as 23.3 inches at Laurel Summit, Pennsylvania), heavy rainfall... Read More
McIDAS images of 4-km resolution GOES-15 6.5 µm water vapor channel data (above; click image to play animation) displayed the development of a classic “dry swirl” water vapor signature indicating the transition to an occluded cyclone during the 01 April – 02 April 2012 time period. The Ocean Prediction Center... Read More
