JEDDAH — The National Center of Meteorology (NCM) announced on Sunday an activity in dusty winds, starting from Monday until next Thursday, over the regions of Makkah, Madinah, Eastern Province and Riyadh. The highways on the coastal parts of the Makkah and Madinah regions (Yanbu, Rabigh, Jeddah, Al-Lith and Al-Qunfudah) will witness the activity of winds that raise clear dust, it added. It noted the continuation of the chances of rainy thunderclouds in the afternoon on the heights of the regions of Asir, Jazan and Al-Baha, extending to the heights of Makkah, and their impact would increase from Wednesday until the end of the week.