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4 Major types of fronts
• Stationary– A front that is not moving.
• Cold– Leading edge of colder air that is replacing warmer air.
• Warm– Leading edge of warmer air that is replacing cooler air.
• Occluded– When a cold front catches up to a warm front.
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Stationary front
• Stationary is when there is no warm or cold air advancing.
• Both air masses reach at a stalemate. These conditions can last for days.
• Winds are gentle and temperature is normal.
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Cold front
• These fronts form when cold air mass meets a warm air mass.
• As the front passes winds can change direction and temperature usually drops.
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Warm front
• Does the opposite of a cold front.
• Temperature will rise and warm will replace the cold air.
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High Pressure
• Shown on TV would be an “H” symbols on the weather channel.
• High pressure areas air is more dense than low pressure air.
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moving fronts
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Low Pressure
• As shown on TV an “L” symbol.
• As winds blow into low pressure the air moves upward causing it to rain.
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