Arab Weather - It is expected that tonight the Kingdom will be affected by an extension of the Siberian high, which is accompanied by a cold wave and a noticeable drop in temperatures in various regions. Thus, this is the second Siberian wave to affect the Kingdom at the beginning of this season.
The Siberian High is a high-pressure system that forms in the Siberian region of Asia. It gradually matures and develops during the fall and reaches its peak during the winter. It is responsible for the dry and severe cold waves that affect Asian countries and some European countries.
The Siberian High begins to form in Siberia, as a result of the cooling of the Earth's surface during the fall and winter, when solar radiation decreases due to the tilt of the Earth's axis away from the sun, so that the Earth continues to lose heat with the decrease in solar heating, and thus the air near the Earth's surface cools significantly and its density increases and its pressure rises significantly, which may reach 1050 hectopascals at times, which is why it is called a high.
Temperatures in the Siberian Highlands can reach lows of -40 degrees Celsius or even lower, creating a dangerous and widespread wave of freezing and frost in these areas.
The winds that accompany the Siberian high are very cold, dry and of high density due to the lack of water bodies in the area where the Siberian high is formed and thus the low humidity therein. They lead to a significant increase in the feeling of cold, and can also lead to sandstorms when they cross desert areas.
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