Unlike depressions ... why is not a classification given to instability situations?

2021-02-02 2021-02-02T12:11:55Z
ناصر حداد
ناصر حداد
متنبئ جوي رئيسي - خبير في الذكاء الاصطناعي

Arab Weather - A special classification for Arab weather was launched 3 years ago for depressions , and it is an indicator that measures the severity of the depressions and their effects in order to facilitate the citizens to know the expected effects of the depression, and the classification helps the concerned authorities also in the decision-making process and declaring the state of emergency according to the severity and degree of the air depression And its effects on the atmosphere .

 

Why are atmospheric instabilities not classified?

Other than the atmospheric depressions, no classification is given to these cases, for the following reasons:

 

Random effect

In such weather conditions, the formation of clouds and precipitation depends on the thermal differences and the collision of air currents in the layers of the atmosphere, and this makes the rainy clouds scattered affecting a specific area that resonates other areas very close to it and in a narrow geographical range sometimes, and it sometimes comes to the formation Thundercloud directly in the same area. In contrast to depressions with air fronts, where the cloud bundles are regular and inclusive at times, where rain clouds usually begin to flow from the Mediterranean Sea towards the north of the Kingdom and extend to the rest of the regions, respectively.

 

Low confidence in numerical atmospheric model output

The degree / level of confidence in weather forecasts decreases during atmospheric instability, as weather models find it extremely difficult to accurately sense and define rain areas, and these weather outputs are subject to fluctuation and change in their location and severity significantly (widening the margin of error), unlike Depression, where the accuracy of weather forecasts is better and the degree of confidence in them is higher.

 

Read also: Red Sea Depression | Between its weakness and its severity ... How does it affect the Middle East region?

 

The following image shows a thunderstorm with limited effect (on a narrow geographical area)

 

In cases of atmospheric instability, intense rain may occur in a geographical range not exceeding 10 square kilometers exclusively without other areas adjacent to it where the atmospheres are completely stable, so giving a classification for such weather conditions which are characterized by randomness and low degree of confidence in them, confuses Observers and decision-makers in identifying the necessary active foci to prepare for them.

This article was written originally in Arabic and is translated using a 3rd party automated service. ArabiaWeather is not responsible for any grammatical errors whatsoever.
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