In addition to the city of Jeddah ... 7 other regions are under the influence of a state of air instability, as of Friday

<p style=";text-align:left;direction:ltr"><strong>Arab Weather</strong> - <strong>Weather</strong> updates are still promising for the weekend in a rainy state in many regions of the western, central and northern parts of the Kingdom on Friday and Saturday specifically, as it is expected that a state of autumn air instability will develop, caused by the crossing of a cold air mass in the high air layers of Egypt and the East The Mediterranean Sea over the north of the Red Sea, while an air high in the south of the Arabian Peninsula is pushing quantities of moisture towards western Saudi Arabia. The meeting of the cold mass in the high layers with the warm and humid currents coming from the south will develop a state of air instability over the central Red Sea and parts of Saudi Arabia on a daily basis. Friday and Saturday.</p><p style=";text-align:left;direction:ltr"></p><h3 style=";text-align:left;direction:ltr"> <strong>Thunderstorms on the coasts of the Red Sea</strong> </h3><p style=";text-align:left;direction:ltr"><img alt="" src="/sites/default/files/uploads-2017/WhatsApp%20Image%202020-11-17%20at%2010.26.21.jpeg" style="width: 800px; height: 450px;" /></p><p style=";text-align:left;direction:ltr"> On Friday, a cold air mass in the high air layers begins to cross the northern Red Sea, resulting in a rapid development of atmospheric instability in the middle of the Red Sea, as cumulus clouds multiply and thunderstorms of rain fall over the coasts of southern Tabuk, Madinah, and the northern region of Jeddah.</p><p style=";text-align:left;direction:ltr"></p><p style=";text-align:left;direction:ltr"> These thunderclouds are associated with heavy rain spots in some areas, which may lead to high water levels and valley runoff, and are also associated with the activity of dust-causing winds and hailstorms.</p><p style=";text-align:left;direction:ltr"></p><p style=";text-align:left;direction:ltr"> The chances of some scattered cumulonimbus thunder formations also continue over the heights of Jizan, Asir and Al-Baha on a daily basis.</p><p style=";text-align:left;direction:ltr"></p><h3 style=";text-align:left;direction:ltr"> <strong>The rains intensified over the city of Jeddah on Saturday</strong></h3><p style=";text-align:left;direction:ltr"></p><p style=";text-align:left;direction:ltr"> As the cold air mass moves further south on Friday evening and Friday / Saturday night, cumulus clouds begin to affect the city of Jeddah, as thunderstorms of rain fall on the city that reach their peak on Saturday morning, where they are of moderate intensity, and the dust-stirring winds activate during the passage of thunder clouds.</p><p style=";text-align:left;direction:ltr"></p><h3 style=";text-align:left;direction:ltr"> <strong>Air instability includes other areas</strong> </h3><p style=";text-align:left;direction:ltr"><img alt="" src="/sites/default/files/uploads-2017/WhatsApp%20Image%202020-11-17%20at%2010.56.42.jpeg" style="width: 800px; height: 450px;" /></p><p style=";text-align:left;direction:ltr"> Weather conditions will also be favorable because the state of air instability includes parts of the western, central and northern regions of the Kingdom on Friday and Saturday, specifically areas: Tabuk heights, Medina, Hail and northern Al-Qassim, and an extension to the south of the northern border and parts of Hafar Al-Batin. The state of air instability in these areas is generally light, moderate in the Hail region and south of the northern border.</p>