What color on a weather map typically indicates cold air?

On a weather map, blue is the color commonly used to indicate cold air. This convention helps meteorologists and the public quickly understand temperature variations in different regions. When looking at a weather map, blue typically marks areas with colder temperatures, such as cold fronts or lower-pressure systems, where cooler air masses are located. This standardization in color usage assists in the effective communication of weather patterns, making it easier to anticipate changes in weather and plan accordingly.

The other colors represent different weather conditions or temperature ranges. For example, red often indicates warm or hot air, while colors like green and yellow may be used for precipitation or moderate temperatures. Therefore, recognizing blue as the color for cold air is key in interpreting weather information accurately.