The National Center of Meteorology issued a " red alert " in its weather fog of varying intensity, reaching dense levels, affecting parts of nine regions during the early morning hours.
The phenomenon is expected to persist until 9:00 AM.
The accompanying effects include near-zero horizontal visibility (1-3 kilometers) in some areas, and zero horizontal visibility of one kilometer or less in areas of dense fog.
Fog areas
Eastern Province: Jubail, Khobar, Dammam, Qatif, Ras Tanura, Khafji, Nairyah, Qaryat Al-Ulya, Hafr Al-Batin, Al-Ahsa, Al-Udayd, and Buqayq.
Riyadh Province: Zulfi, Ghat, Majmaah, Shaqra, Dawadmi, Ar-Rin, Al-Quway'iyah, Afif, Al-Hariq, Al-Kharj, Ad-Dilam, Al-Muzahmiyah, Hawtat Bani Tamim, Thadiq, Huraymila, Rumah, Dhurma, Marat, Ad-Diriyah, and the capital, Riyadh.
Makkah Province: Taif.
Northern Borders Province: Rafha.
Al-Baha Province: Al-Qura, Al-Mandaq, Al-Baha, Baljurashi, and Bani Hassan.
Ash-Shanan, Baqaa, and Samira.
Al-Qassim Province: Al-Asyah, Al-Badai, Al-Bukayriyah, Ath-Thamirah, Ash-Shamasiyah, Al-Ammar, Al-Mudhnib, Buraydah, Unayzah, Uyun Al-Jawa, Abanat, Al-Khabra, Ar-Rass, Al-Fawarah, An-Nabhaniah, Riyadh Al-Khabra, Dhariyah, and Uqlat As-Suqur.
Asir Province: An-Namas, Balqarn, Tanomah, Al-Harjah, Ar-Rubuah, Al-Farshah, Sarat Abidah, Dhahran Al-Janoub, Abha, and Ahad Rafidah.
Jazan: Al-Harth, Al-Dayer, Al-Raith, Al-Ardah, Al-Aydabi, Fifa and Haroub.
