Arab Weather - The season of activity of the Khamasin depressions, which bring warm and dusty winds (called Khamasin winds), begins from the vernal equinox until May 10. It is a type of thermal depression that is active in the spring. Khamasin depressions usually form in the Algerian desert east of the Atlas Mountains, but the places where they form differ. Sometimes, Khamasin depressions can form in Libyan territory.
This type of depression is formed as a result of the high heating of the land (the surface of the Earth). In the spring, temperatures in the north of the African continent begin to rise as the surface of the Earth heats up. Due to the difference in specific heat between land and water, the surface of the Mediterranean Sea remains cold, and the land becomes warmer. As a result, the air on land begins to expand, its weight decreases, and the atmospheric pressure decreases, announcing the formation of a Khamaseen depression in the Great African Desert.
At the forefront of the Khamaseen depressions, Khamaseen weather conditions prevail, represented by dry, warm (or hot) and dusty weather, but the Khamaseen depression quickly moves away, and an air mass with lower temperatures rushes behind it, causing a sharp drop in temperatures in a period of time that may not exceed 24 hours sometimes. The Khamaseen depressions are one of the most prominent causes of temperature fluctuations in Jordan's climate during the spring.
God knows best.
Arabia Weather App
Download the app to receive weather notifications and more..