7-8 What is a front?
SWBAT: Describe the different kinds of fronts and the weather they cause.
Front: boundary between air masses of different densities
Cold front: forward edge of a cold air mass, formed when a cold air mass pushes under a warm air mass
Warm front: forward edge of a warm air mass, formed when a warm air mass pushes over a cold air mass
• A front forms where two air masses meet; moving fronts cause weather changes.
• Cold fronts usually bring rain or snow and cloudy skies.
• Warm fronts usually cause the formation of cirrus clouds and may include precipitation.
• Stationary fronts do not move; they bring little change to the weather.
• Occluded fronts may bring cloudy, rainy, or snowy weather.
Video:
The Weather Channel: Creating a Weather Front
Front: boundary between air masses of different densities
Cold front: forward edge of a cold air mass, formed when a cold air mass pushes under a warm air mass
Warm front: forward edge of a warm air mass, formed when a warm air mass pushes over a cold air mass
• A front forms where two air masses meet; moving fronts cause weather changes.
• Cold fronts usually bring rain or snow and cloudy skies.
• Warm fronts usually cause the formation of cirrus clouds and may include precipitation.
• Stationary fronts do not move; they bring little change to the weather.
• Occluded fronts may bring cloudy, rainy, or snowy weather.
Video:
The Weather Channel: Creating a Weather Front