MapMaster 3

Atlas (Beta)

High Pressure

North AmericaPhysical Environment

A region where atmospheric pressure at the surface is greater than surrounding areas

A map highlights the high-pressure regions in North America with a letter H enclosed in a circle. Near Columbia Kootenay Mountain and, near Ottawa.

High Pressure	Net Migration Rate			Average Number of Tornado Incidences per Year (U.S.)
High Pressure	Class	Rank	Percent	Less than 1	1–5	6–10	11–15	More than 15












1				65.3%	51.1%	35.9%	21.6%	5.21%

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