2-32. The surface analysis charts permit a person to identify and locate the large-scale features of the sea level pressure field and the surface fronts. Isobars with the lowest value will encircle the region with the lowest pressure, while closed isobars with the highest value will encircle the area with the highest pressure. How tightly the isobars are packed reveals the steepness of the pressure gradient between any two points. Wind flows tend to parallel the