How does a front occur?
Develop when two unlike air masses “meet”
Do not readily mix
Temperature is very different
Cold Fronts
Marks the leading edge of cold air
Air behind the cold front is colder &drier
More About
Cold Fronts
Rapid lifting of warmer air ahead of the cold front.
Thunderstorms & heavy rain are often along and immediately behind cold fronts.
Warm Fronts
Leading edge of warm air
Warm air is replacing retreating cold air
Air behind the warm front is warmer & more humid
Frontal Boundary Symbols
Tells what kind of front and direction of its movement
