RIYADH: Saudi Arabia’s National Center for Meteorology has warned of moderate to heavy rain that could trigger flash floods and hail in parts of the Kingdom’s western and southwestern regions, with gusty winds also expected in several areas. The forecast, carried by the Saudi Press Agency on Wednesday, covers parts of Jazan, Asir, Al-Baha and Makkah regions. Light to moderate rain is expected in parts of Najran and Madinah, while dust-stirring winds are forecast in those areas and parts of Riyad