An eastern tropical wave will affect several countries in the coming days.

Arab Weather - Weather updates indicate that a tropical wave is expected to become significantly active in the coming days. Its effects are expected to begin in Sudan and extend westward to include the Sahel countries, including parts of southern Algeria and Mauritania. There is also a possibility that its effects will extend to southern Libya and southern Egypt.

What are eastern tropical waves?

East African Waves are tropical atmospheric disturbances originating over the Horn of Africa or Sudan and moving from east to west, driven by trade winds. These waves are among the most important systems responsible for the formation of cumulus clouds and summer rains in the Sahelian regions of Africa, and are sometimes considered the nucleus from which larger tropical systems, such as tropical storms or hurricanes, develop along the Atlantic coast.

convective weather pattern

The combination of this tropical wave's activity and high tropical humidity in the lower and middle layers of the atmosphere, along with the hot surface conditions in Sudan, Algeria, and Niger, creates a fertile environment for the emergence of atmospheric instability. These conditions could lead to:

Strong thunderstorms are developing, accompanied by heavy rain showers.

Downdraft activity accompanying cumulus clouds, which may trigger local dust storms.

Possibility of flash floods in some low-lying mountainous or desert areas.

The weather will extend to southern Egypt and southern Libya, with the possibility of thunderstorms developing and scattered showers, especially in border areas.

In rare cases, as the wave continues its westward and northwestward movement, it may contribute to increased humidity in the high layers over parts of northern Arabia. This could increase the chances of cumulus clouds forming in northwestern Saudi Arabia later, especially if accompanied by a surface temperature depression.