Saudi Arabia | Rainfall expands again to include six regions by the end of the week.

Arab Weather - Sinan Khalaf - The latest weather analyses issued by the Arab Weather Regional Center indicate that large parts of the southwest and west of the Kingdom will be affected by atmospheric instability over the weekend. This is caused by the influx of large amounts of tropical humidity and water vapor into the region's atmosphere, leading to the formation of thunderclouds and rainfall.

Areas covered by rain forecasts over the weekend

In detail, cumulonimbus cloud activity is expected to resume starting at noon over the highlands of Jazan, Asir, and Al-Baha. A gradual chance of rain showers, sometimes heavy and accompanied by hail, is expected, as is lightning, thunder, and a high risk of lightning strikes.

We also monitor the growing indications in Arab Weather that there is a high probability of tropical moisture flowing further north, such that the scope of cumulus cloud formation and rainfall will expand to include Taif and the eastern highlands of the Makkah region, reaching the mountains of the Madinah region.

Northward shift of the orbital interval

This weather activity is attributed to the northward shift of the subtropical high pressure system, which has allowed the Intertropical Zone (ITCZ) to penetrate into the Kingdom's territory, coinciding with a continuous flow of tropical moisture into the region's atmosphere. This provides a favorable weather environment for the formation of widespread thunderstorms, particularly over mountainous regions.

Arab Weather advises its followers to avoid crossing valleys and torrents during rainfall, and to monitor weather updates regularly.