Wonders of Weather Review

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What is a High Pressure System?

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A High Pressure System is an area where the atmospheric pressure is higher than that of the surrounding areas, typically associated with clear skies and calm weather.

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What is a Low Pressure System?

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A Low Pressure System is an area where the atmospheric pressure is lower than that of the surrounding areas, often leading to cloudy skies and precipitation.

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What is a Jet Stream?

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A Jet Stream is a narrow band of very fast wind in the upper troposphere that separates warm and cold air masses.

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What is the difference between a warm front and a cold front?

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A warm front occurs when warm air rises over cold air, leading to gradual temperature increases, while a cold front occurs when cold air pushes under warm air, often resulting in sudden temperature drops and storms.

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What type of cloud is a Cirrus cloud?

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A Cirrus cloud is a high, feathery cloud composed of ice crystals, typically indicating fair weather but can also signal a change in the weather.

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What is the significance of the upper troposphere in weather patterns?

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The upper troposphere is significant because it is where jet streams occur, influencing weather patterns and the movement of air masses.

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What does it mean when a weather map shows a cold front?

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A cold front on a weather map indicates that a mass of cold air is moving into an area, often leading to thunderstorms and a drop in temperature.

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What are the characteristics of a stationary front?

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A stationary front occurs when two air masses meet but neither is strong enough to replace the other, often leading to prolonged periods of cloudy and rainy weather.

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What is an occluded front?

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An occluded front occurs when a cold front overtakes a warm front, leading to complex weather patterns and often resulting in precipitation.

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How do high and low pressure systems affect weather?

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High pressure systems generally bring clear skies and stable weather, while low pressure systems are associated with clouds, precipitation, and stormy weather.