Final answer:
A cold front on a weather map is indicated by a line with blue triangles pointing towards warmer air. High and low pressure areas are labeled with 'H' and 'L' respectively, and gray lines show isobars, or lines of constant pressure.
Step-by-step explanation:
The location of a cold front on a sequence of weather maps is typically indicated by a line with triangles pointing in the direction of the colder air moving towards the warmer air. These triangles are often shaded in blue, which helps to distinguish them from warm fronts, which are usually represented by a line with semicircles. On these weather maps, areas of high pressure are marked with an 'H' and low pressure are marked with an 'L'. The gray lines that are visible represent isobars, or lines of constant pressure, which are important in predicting weather patterns and determining the movement of fronts. When analyzing these weather maps, meteorologists can predict the impact of various weather systems, including cold fronts, which can bring cooler temperatures and potentially severe weather depending on the context.