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Saudi Arabia’s National Center for Meteorology issued alert 85914 at 18:46 on 10 October, forecasting fog in the Eastern Province. The latest version names Ad Dammam, Al Jubayl, Al Khubar including Ad Dhahran, Al Qatif and Ras Tannurah, as well as open areas and highways. The alert gives expected horizontal visibility of 1–3 kilometres.

The forecast window runs from 23:00 on 10 October to 08:00 on 11 October, according to the NCM page. The alert identifies a visibility risk for travel during those hours; it does not report a road closure, transport interruption or incident. The issue time and forecast period are kept separate because the expected conditions begin later that night.