What do isobars represent on a weather map?

Isobars are lines drawn on a weather map that connect points of equal atmospheric pressure. This representation helps meteorologists to visualize pressure systems in the atmosphere and their gradients. Understanding where isobars are closely spaced indicates areas of significant pressure difference, which can imply stronger winds. Conversely, when isobars are widely spaced, it suggests a more tranquil wind environment.

The interpretation of isobars is crucial for predicting weather patterns, including the movement of air masses and the formation of weather fronts. Accurate readings of atmospheric pressure are essential for determining weather conditions, and isobars provide a clear visual tool for analyzing these conditions across different regions.