According to the National Center for Meteorology, dust-stirring winds will blow and moderate to heavy rain accompanied by hail may fall in parts of Jazan, Aseer, Al-Baha and Makkah. Light to moderate rain may fall in some parts of Najran and Makkah. Dust-stirring winds will blow in parts of Qassim, Hail, and Madinah. Winds over the Red Sea will be northerly to northwesterly, at speeds of 20-40 km/h in the northern and central parts, and westerly to southwesterly at 18-45 km/h in the southern part. Waves may range from half a meter to more than two meters with the formation of thunderclouds; the sea will be calm to choppy. In the Arabian Gulf, winds will be southerly to southeasterly, at speeds of 10-30 km/h. Waves may reach from half a meter to a meter, and the sea will be relatively calm. Source: Saudi Press Agency