The National Center of Meteorology (NCM) has issued its daily forecast report for the weather in the Kingdom of Saudi Arabia. The report said that moderate to heavy thunderstorms are forecasted to fall on the regions of Jazan, Najran, Assir, Al-Baha, extending to Makkah region and the southern parts of Riyadh region (Wadi Al Dawasir) and the southern parts of Eastern Region (the Empty Quarter), while active dusty winds are forecasted on Eastern and Riyadh regions. The report showed that the surface wind movement in the Red Sea will be westerly to northwesterly at speed of 15-30 km/h on northern and central parts and southerly to southwesterly at speed of 20-40 km/h on the southern part, while the surface wind movement in the Arabian Gulf will be northwesterly to northerly at speed 20-40.