The south-east is an inherent and exclusive climatic phenomenon of the so-called Rio de la Plata Region, for example, it affects the countries that surround it: Argentina and Uruguay, and that is characterized by very violent cold winds, and that is mixed with humidity and intense rains, which in most cases culminate in floods in the areas surrounding the river due to the shocking flood that the river suffers.
Meteorological phenomenon typical of the Río de la Plata region and characterized by strong winds, humidity, intense rains and the overflowing of the river
As a consequence that the wind is usually maintained for several consecutive days over the Rio de la Plata is that the direction of the wind that coincides with that of the river prevents its natural drainage.
Also, the swell is intense, and by case it is that this hinders its navigation, either for sporting, commercial, or tourist purposes.
A weather condition that makes crossing the river dangerous
The days of the south is really dangerous and it is not advisable to navigate it because serious accidents can occur as a result of the factors set out above.
The transit between Uruguay and Argentina through the Río de la Plata is always intense due to commercial and tourism reasons, but it is important to say and warn that this journey, on days when a south-east is taking place, is not carried out, it is suspend the trip until the meteorological phenomenon subsides its virulence.
The sudestada is characterized by a very strong type of wind, characteristic of the Río de la Plata area and that precisely drives the aforementioned river from the southeast side and towards the coast of the city of Buenos Aires.
The Río de la Plata is a river, and also a mouth, in the southern cone of America, formed by the union of the Paraná and Uruguay rivers.
It has a triangular shape of about 320 kilometers long, which also serves as a border between the neighboring countries of Argentina and Uruguay.
It is considered the widest river in the world, being its width of 219 kilometers.
Main characteristics and accompanying phenomena
Generally, the sudestada usually manifests accompanied by heavy rains.
Also, because of the very strong and constant wind, on the one hand, the normal drainage of the river becomes complex, and on the other hand, the action of the waves take over the river, directly causing an increase in its level, on the coast. Argentina, which can exceed the limits and give rise to floods in the areas bordering the coast, such as the delta of Tigre, the neighborhood of La Boca, the town of Quilmes, among others.
This type of meteorological phenomenon is easy to appreciate since it triggers an untimely rotation of the cold south wind towards the southeast and that ends up filling the polar air mass with the oceanic humidity that it carries.
Thus, the very intense cold wind approaches the areas near the Rio de la Plata, continuing the direction of the river and going, as we said, in a constant direction, and for the period of several days, from the southeast to the northwest.
Another salient feature of this storm is that temperatures drop sharply, which also triggers precipitation that can range from moderate drizzle to really intense rain.
Although there is no calendar date in which it occurs without fail, and can then happen at any time of the year, its appearance between April and December is recurrent, with the period from July to October being the most likely and the most intense.
Generally, the sudestada ends when the wind rotates to the southwest and is replaced by another type of wind characteristic of the area such as the Pampero, an intense and very cold wind, but dry, which dislodges the humidity and cloudiness that accumulated in the days of sudestada and this helps remarkably in the drainage of the Río de la Plata.
The Pampero arrives from Antarctica itself, and for example, it is a clearly polar air mass that blows from the south or southwest of Argentina, passing through the Pampean region, and from there it continues on its way to Uruguay, Brazil and Bolivia.
