How a Black South-Easter is formed?

When conditions are just right (or wrong, depending on your point of view) they conspire to produce something called a ‘ black southeaster ‘. The wind blows unusually strongly and the usual dry, sunny weather is replaced with very high levels of rain fall. Winters south westerly winds slip further south towards the pole.

Where does the South-Easter come from?

The Cape Doctor is the local name for the strong south-eastern wind – also known as South-Easter – that blows from False Bay and funnels through to Cape Town and Blouberg. It is said to clear all pollution in the city and across the Cape Flats, offering an amazing clear sky and view of the Mother City.

What is meant by South-Easter?

1: a strong southeast wind. 2: a storm with southeast winds.

What causes the South-Easter wind?

The air around High pressure moves counter-clockwise. Low pressure (below 1013 mb) is warm air that is rising. Air around the Low moves clockwise. Air moves from High pressure towards Low pressure (to replace the rising air) and this creates wind.

Why is the Cape so windy?

Between October and March, a south-easterly wind blows through Cape Town, clearing up the city’s air and taking the edge off the summer heat. It’s also responsible for the “tablecloth” effect that can sometimes be seen on Table Mountain. In some cases, the wind can reach speeds of up to 120km/h!

Why are winds called doctors?

In West Africa it is known as ‘the doctor ‘ because of its invigorating dryness compared with humid tropical air. The harmattan wind stream occasionally extends south of the equator during the northern winter as an upper air wind over the south-westerly monsoon.

What is the Black South Easter?

The Southeaster is usually accompanied by fair weather. However, if the South-Easter is accompanied by a cut-off low as occasionally happens in the spring and autumn months, this can cause heavy rains to fall over the Western Cape. This phenomenon is popularly known as a Black South-Easter.

What is the Cape doctor in South Africa?

“Cape Doctor” is the local name for the strong, often persistent and dry south-easterly wind that blows on the South African coast from spring to late summer (September to March in the southern hemisphere).

What is Brickfielder wind?

The Brickfielder is a hot and dry wind in Southern Australia that develops in the country’s deserts in late spring and summer, which heavily raises temperatures in the coastal areas.

What is a south westerly wind?

A south – westerly point, area, or direction is to the south -west or towards the south -west. A south – westerly wind is a wind that blows from the south -west.

Why is the wind so strong in Cape Town?

The strong wind is being caused by a pressure gradient between a low and high pressure system. “The tight pressure gradient between the high and low pressure systems along the coast is causing the high wind speed,” SAWS forecaster Kgolofelo Mahlangu told News24.

Why is the wind blowing so strongly?

Moving anything requires a force. Strong winds are due to a strong pressure gradient force. A pressure gradient is how fast pressure changes over distance. The Coriolis force pulls the wind to the right so that winds blow counterclockwise around lows and clockwise around highs in the Northern Hemisphere.

What causes Berg winds?

A hot, dry, squally wind blowing off the interior plateau of South Africa, roughly at right angles to the coast; a type of foehn. Berg winds blow mainly in winter, when a strong anticyclone occupies the interior plateau, producing outflow across the coastal regions of South Africa.