The National Center of Meteorology warned today of a heat wave reaching between 47 and 48 degrees Celsius, accompanied by active winds in the Eastern Province, including the cities of Dammam and Dhahran, and the governorates of Hafr Al Batin, Al Khafji, Al Nairyah, Qaryat Al Ulya, Jubail, Ras Tanura, Qatif, Al Khobar, Buqayq, Al Udayd, Al Ahsa, and Al Hijr and their affiliated centers; causing dust stirring and reduced horizontal visibility (3-5) on highways and open areas. It indicated that this condition will continue, God willing, until 7 pm.