A low-pressure system will affect four Arab countries, accompanied by strong thunderstorms and hail in the coming days.

Arab Weather - The latest advanced computer outputs from the Arab Weather Regional Center indicate that a cold air mass is rushing early toward southern Europe, and a multi-front low pressure system is forming, characterized by high atmospheric activity, God willing. This will begin Sunday before it noticeably intensifies on Monday and Tuesday, reaching Italy and encompassing four Arab countries.

A low pressure system with high atmospheric activity is affecting southwestern Europe.

In detail, meteorologists at the Arab Weather Center stated that as a result of the undulation of the polar jet stream, a cold air mass is rushing towards southwestern Europe, and a highly effective low-pressure system is forming over the Iberian Peninsula. It is accompanied by several air fronts that bring heavy thunderclouds, torrential rains, and severe thunderstorms. This type of weather is usually accompanied by a combination of winter and autumn characteristics with strong ascending air currents, producing exceptional hailstorms accompanied by large hailstones, which can cause damage to public property.

The low pressure system will intensify mid-week as it moves eastward (severe thunderstorms and hail)

The weather system is moving eastward, and cold air is crossing the surface of the Mediterranean Sea, which is experiencing warming, coinciding with the expansion of tropical humidity. This will intensify the weather activity and strongly affect central and southern Europe, specifically the Balkan countries, especially Italy and Greece. High-altitude thunderclouds are forming, accompanied by heavy rainfall and successive, severe thunderstorms and hail, which increases the risk of flash floods in many areas.

The low pressure system is affecting four Arab countries in a state of complex instability.

In this context, and as a result of the warming of the Mediterranean Sea and the passage of cold air in the upper layers of the atmosphere, and coinciding with the influx of tropical moisture, a state of complex atmospheric instability is forming over four Arab countries (Morocco, Algeria, Tunisia, and western Libya) during the period from Sunday, September 7, 2025, to Thursday, September 11, 2024. Its peak will be on Tuesday, and thus thunderclouds will form, growing to towering levels in the atmosphere.

It is accompanied by severe weather phenomena such as (very heavy rain, thunderstorms and lightning, strong hailstorms with large hailstones, and strong downward winds). The terrain and topography of the land contribute to the process of air lifting, especially the Atlas Mountains and neighboring areas. Mountain valleys and low-lying areas are vulnerable to the sudden formation of torrential flash floods, in addition to the increased risk of flooding in several regions due to the large amounts of rainfall expected in some areas.

And God knows best.