Epicenter wide net Beijing on October 19 news (reporter zhang Zhu Hongyuan) according to the voice of China "national news broadcast" report, the national meteorological center forecast, the cold air today will affect most of northern China, with wind, temperature, precipitation weather. North China, huanghuai days of haze weather, is expected to weaken or go away. The central meteorological station is expected, 19-23, there will be a moderate intensity cold air influence in our country, most of the northern region has grade 4 to 6 northerly winds...