What is the difference between Norte and Surada? This is how these two weather phenomena are distinguished

The influence of both Suradas and Nortes in Mexico is determined primarily by the seasons, as well as the temperature, extent, density, and density of air masses.
Ursula Pamela Garcia

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Since September, the first frontal systems of the season begin to arrive from the North Pole, and these in turn are driven by it Air masses, Which may be of the cold, arctic or arctic type; Any of the above lends itself to strong, continuous winds. With strong winds that may exceed 100 kilometers per hour over eastern and southern Mexican territory. This phenomenon is popularly known as the “northern” effect, especially on the eastern coasts of the country.

On the other hand, the location of A Warm air mass Over the Gulf of Mexico and/or the Atlantic Ocean extending from the tropics, it appears strongly at the end of winter and beginning of spring and is fed by heat from the ocean and atmospheric radiation that reaches the planet in greater proportion. , It also allows strong gusts of warm marine winds to arrive, especially on the coast of eastern Mexico.. This meteorological phenomenon is popularly known as the “Sorada” effect.

Each year, as fall begins and winter sets in, the influence of the “Nordic” appears more frequently. While at the end of winter and the beginning of spring, the mass of warm air that extends from the Atlantic Ocean to the Gulf of Mexico strengthens with the beginning of the hot season, giving way more frequently to the “Sorada” effect.

The strongest differences are between Sorada and the North

The “Nordic” effect, unlike the “Sorada” effect, is usually accompanied by cold, frigid or even icy temperatures, depending on the type of air masses if they are cold, arctic or arctic respectively. Wind speeds can easily reach or exceed 100 km/h, although they often tend to be between 70 and 80 km/h.On the coast of the Gulf of Mexico the strongest winds arise.

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High waves
The presence of high waves and coastal waves are effects that can be recorded during Sorada or Norte, and their height depends on the intensity of the winds. The stronger the storms, the higher the waves. Photography: Vertienteglobal.com

But, later, the influence of the “North” also gives way to another event located in the south of the country and manifesting itself on the coast and mountains of Oaxaca and Chiapas, in the area known as the Gulf and Isthmus of Tehuantepec. There the winds gather and accelerate, mainly due to the type of mountains and the tropical location of the area.

This effect is known locally by the people of the region as “Tehuano” or “Tehuantepecano”. The winds recorded there tend to be mostly northeasterly and sometimes northerly, in addition to their speed exceeding 100 km/h.

Another peculiarity of the “Norte” event that differs from “Sorada” is: It is the direction of the wind, which is usually mostly from the north, and sometimes northeasterly or northwest. It affects areas throughout the coast of the Gulf of Mexico, the Gulf and Isthmus of Tehuantepec, and the coasts of the Yucatán Peninsula, and its frequency and intensity depend on the density and extent of the air mass that drives the frontal system.

While Surada, High-speed winds of speed exceeding 80 km/h are usually recorded The wind is recorded from the south direction, hence the name of the effect.. Some storms may occasionally have a southeasterly component. Moreover, in contrast to the influence of the North, Strong winds are usually accompanied by warm to very hot temperaturesThis depends on the time of day it occurs and the extent of high pressure that favors the warm air mass that extends into the waters from the Gulf of Mexico, the Caribbean Sea, and the tropical Atlantic Ocean.

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What about rainfall?

Usually when we talk about the arrival of a cold front, this is related to precipitation and northern influence. but, It is the mass of cold air, which gives way to all hydrometeorological effects, Because after the frontal systems arrive, the air inversion collects moisture generated by the mountains, making it at the cloud border.

This push of air and moisture upon reaching the various types of mountains that it comes into contact with, It lends itself to accelerating winds and rain that can be consistent and last several hours, and the precipitation is usually cold.

On the other hand, the elongation of the anticyclone system centered in the Gulf of Mexico enhances the warm air mass that… Drought is brought about mainly by heat, which in turn reduces and evaporates moistureSo when we have the presence of Surada, There is a low possibility of rain, and the effect known in Mexico as “hot weather” is felt and is nothing more than a thermal sensation of warmth combined with humidity.

But if two very intense air masses, whether cold or warm, collide, the boundaries of each can lead to a powerful intense storm accompanied by electrometeors and even hail, derived from the exchange of energy between the two systems, as we explain in This article talks about air masses and their characteristics.

If some blocks are dominant, the firing of the frontal system will change, making it blocked, static or cold, click here If you want to know more about the types of fronts

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Damage caused by strong winds
When gusts are usually very severe and exceed 70 km/h, they can cause damage that is often fatal.

Protection against wind

If either of the two things happen, Closing ports to navigation to avoid exposing their crews to danger. From high waves, constant waves, heavy rains and extremely strong winds, it affects daily human activities and thus the country's economy.

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