Weather Fronts and Pressure Centers
Weather fronts appear as lines that indicate the leading edge of an air mass.
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Front Symbol |
Description |
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Cold front |
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Warm front |
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Stationary front |
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Occluded front |
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Trough |
Pressure-center symbols often appear near weather fronts.
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Pressure-Center Symbol |
Description |
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Indicates a low-pressure center, which is a region of relatively lower pressure. Moving away from a low-pressure center results in increased pressure. Winds flow counterclockwise around low-pressure centers in the northern hemisphere. |
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Indicates a high-pressure center, which is a region of relatively higher pressure. Moving away from a high-pressure center results in decreased pressure. Winds flow clockwise around high-pressure centers in the northern hemisphere. |
