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Factors influencing SA’s weather

Factors influencing SA’s weather. Ocean Currents Warm Mozambique – east coast Cold Benguela – west coast Tropical Cyclones Temperate Cyclones Cold/warm fronts Anticyclones South Indian Anticyclone (SIA) South Atlantic Anticyclone (SAA) Kalahari Anticyclone (KA) Escarpment

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Factors influencing SA’s weather

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  1. Factors influencing SA’s weather • Ocean Currents • Warm Mozambique – east coast • Cold Benguela – west coast • Tropical Cyclones • Temperate Cyclones • Cold/warm fronts • Anticyclones • South Indian Anticyclone (SIA) • South Atlantic Anticyclone (SAA) • Kalahari Anticyclone (KA) • Escarpment • Distance from the Sea

  2. Dominant Anticyclonic Conditions Descending Air Temperature Inversion Influence of High Pressure Cells Winter Cool Dry Air

  3. Weak Anticyclonic Conditions Descending Air Temperature Inversion Dominant Low pressure in interior Strong rising air caused by heating and convergence Influence of High Pressure Cells Summer Warm Moist Air Cool Dry Air

  4. Tropical Cyclones • Occur in late summer • Influence the north eastern and eastern regions of the country – KZN, Mpumalanga, Mozambique • Bring hurricane force winds and torrential rains leading to extensive flooding

  5. Political – Neighbouring States

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