Summer weather disturbances to hit 8 Arab countries starting Sunday

The latest outputs of numerical models in the weather forecasting team at Arab Weather indicate that large parts of the Arab world will be affected, starting from Sunday, June 28, 2026, by a state of atmospheric instability, accompanied by the activity of cumulonimbus thunderclouds and rainfall of varying intensity over 8 Arab countries, which may be locally heavy at some times, with the possibility of flash floods in some low-lying areas and valleys.

This weather pattern is one of the recurring summer systems, during which thunderstorms become noticeably active during the afternoon hours, especially over the highlands and mountainous areas.

Oman and the UAE: Daily thunderstorms and varying levels of rainfall

The chances of cumulonimbus cloud activity over the Hajar Mountains in the Sultanate of Oman continue daily during the afternoon hours, especially in the western and eastern Hajar Mountains, with varying intensities of thunderstorms that may be accompanied by thunder and hail showers, leading to the flow of valleys and streams.

The forecast also indicates renewed chances of thunderstorm formation over parts of the coasts and governorates of Dhofar, with local thunderstorms expected, God willing.

In the United Arab Emirates, thunderstorms are expected to develop over the eastern highlands and occasionally extend to some inland areas, with scattered summer thunderstorms.

Saudi Arabia: Daily thunderstorms expected in the southwestern highlands

The chances of daily thunderstorms continue over the highlands of Jazan, Asir and Al-Baha, sometimes extending towards parts of the Makkah region, as a result of the activity of mountain clouds during the afternoon hours. Therefore, it is advised to follow the daily updates issued by the National Center for Meteorology.

Yemen: Heavy thunderstorms, lightning, and potential flash floods

Updates indicate that cumulonimbus cloud activity will continue over the western highlands of Yemen during the coming days, with daily thunderstorms that may be heavy at times.

The situation is accompanied by hail showers and clear thunderstorm activity, which increases the risk of flash floods in valleys and ravines in some areas.

Morocco, Algeria, and Tunisia: Severe unrest and potential flooding

Large areas of northern and central Morocco are experiencing frequent activity of cumulonimbus clouds, especially in mountainous regions, accompanied by lightning, thunder and hail showers, which increases the likelihood of flash floods and torrents.

Thunderstorm clouds are also active in Algeria, especially in the northern interior regions, and are accompanied by active downdrafts that stir up dust and lead to a decrease in horizontal visibility, in addition to heavy rainfall and hail showers.

The effects of this situation are expected to gradually extend to parts of Tunisia during the middle of the week.

And God knows best.

Sudan: Tropical humidity activity continues

The flow of tropical moisture from the south continues, leading to renewed activity of cumulonimbus clouds and rainfall over large areas of South Sudan during the coming period, and thus the continuation of rainfall.