Color Your World
Color the picture by clicking on a color swatch at the bottom of the image then click on the image where you want to apply that color. Color off-line by downloading and printing the pdf version.
The symbol for a cold front. Fronts are the boundaries between two air masses. Fronts are classified as to which type of air mass (cold or warm) is replacing the other. For example, a cold front demarcates the leading edge of a cold air mass displacing a warmer air mass. A warm front is the leading edge of a warmer air mass replacing a colder air mass.
If the front is essentially not moving (i.e. the air masses are not moving) it is called a stationary front. Learn more about our weather in JetStream - An Online School for Weather.