On a Surface Analysis Chart, how can you identify a High Pressure area?

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Multiple Choice

On a Surface Analysis Chart, how can you identify a High Pressure area?

High pressure on surface charts is marked by the blue letter H at the center of the system. That H identifies the center where air subsides and diverges, leading to generally clear skies and clockwise wind flow in the Northern Hemisphere. The other markings don’t denote a high-pressure center: L indicates low pressure with rising air and counterclockwise winds, while a yellow circle with a dot or a green shaded region aren’t standard symbols for a high-pressure area. So the blue H is the clear, correct sign.

High pressure on surface charts is marked by the blue letter H at the center of the system. That H identifies the center where air subsides and diverges, leading to generally clear skies and clockwise wind flow in the Northern Hemisphere. The other markings don’t denote a high-pressure center: L indicates low pressure with rising air and counterclockwise winds, while a yellow circle with a dot or a green shaded region aren’t standard symbols for a high-pressure area. So the blue H is the clear, correct sign.

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