With the arrival of spring, the Siberian high pressure system, one of the main causes of the severe cold waves in recent months, begins to collapse.

Arab Weather - The Siberian system is considered one of the most important sources of cold continental air masses, especially the Polar Continental air masses. At the height of winter, the Siberian high is at its peak and extends over vast areas of the Northern Hemisphere, bringing with it bitterly cold and dry weather to many regions of the world. However, with the spring solstice, the Siberian high collapses, which was one of the most prominent causes of the severe cold waves in recent months.

What is the Siberian High?

The Siberian High is a high-pressure system that forms in northeastern Siberia during the winter, when temperatures are extremely low and cold, dry air accumulates. This system is characterized by high atmospheric pressure and leads to cold, dry weather conditions in the areas it affects.

How does the Siberian High collapse in spring and summer, causing air pressure values to drop at its centers?

In spring, the Siberian High begins to retreat and collapse, with atmospheric pressure gradually dropping for several reasons, particularly temperature changes. With spring, temperatures gradually rise in Siberia as days lengthen and sunlight increases, heating the ground further, reducing the severity of the cold that prevails during winter.

As the Earth moves in its orbit around the sun, the angle at which the sun's rays reach the Earth begins to improve, leading to greater heating of the region, particularly in late April and during May, which peaks with the onset of summer. As the Earth warms, cold air that has accumulated over Siberia gradually begins to rise due to the lower density of the hot air compared to the cold air. This results in a gradual decrease in the atmospheric pressure in the high-pressure region.

Also, in spring, the high system weakens due to winds and warmer air beginning to move north. Additionally, high pressure in Siberia and low pressure elsewhere balance out, causing the Siberian high to retreat.

And God knows best.