South Atlantic High

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South Atlantic High is a semipermanent pressure high centered at about 25°S, 15°W, in the Atlantic Ocean. It is also called the St. Helena High. It can stretch thousands of miles across the South Atlantic affecting shipping. Sailors try to find a "corridor" through using the low pressure systems forming off the coast of Brazil that move west pushing against the high pressure.

Cyclones and Anticyclones of the world
Types
Annual anticyclones
Polar high – Siberian High – Azores High (Bermuda/North Atlantic) – North American High (Canadian/Greenland) – South Atlantic High (St.Helena) – North Pacific High – South Pacific High – Scandinavian High – Mascarene High (Indian) – Australian High – Antarctic High
Annual cyclones
Aleutian low (Alaska/Far East Russia) – Icelandic Low – Kona low (Hawaii) – Polar low

Coordinates: 25°00′S 15°00′W / 25°S 15°W / -25; -15

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