Figure 13- Meteogram for the National Weather Service Automated Surface Observation System (ASOS)
located on Bates Field in west Mobile, Alabama (KMOB). Of note between 1200-1800 UTC
are the falling surface pressures, mid- and upper 70 F surface dewpoint temperatures and a mean
time-averaged cloud base of around 2000 ft above ground level (AGL), which closely matches the
computed Level of Free Convection for a surface-based parcel. This image is courtesy of Plymouth
State College Weather Center.