South Atlantic High

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
  • Extratropical
  • Meso-scale
  • Polar
  • Polar low
  • Subtropical cyclone/Subtropical ridge
  • Tropical
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
Cyclones
  • Aleutian low (Alaska/Far East Russia)
  • Genoa low
  • Icelandic Low
  • Kona low (Hawaii)

Coordinates: 25°00′S 15°00′W / 25.000°S 15.000°W / -25.000; -15.000

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