Tonight to tomorrow the Tianjin local heavy fog visibility less than 50 meters – Sohu news-marie digby

Tonight to tomorrow the Tianjin local heavy fog visibility less than 50 meters – Sohu news Beijing News News (reporter Wang Shuo) the night of 4 to 5 in the morning, some areas in southern Beijing, Western Tianjin, central and southern Hebei and other places have strong fog visibility less than 200 meters, local fog visibility less than 50 meters. Strong. 4, 2009 at 18 PM, the Central Meteorological Observatory issued a heavy fog orange warning. Heavy fog is what concept? The National Meteorological Center Engineer An Linchang said that the fog is divided according to the level of visibility, the visibility, in less than 10 km for the mist, visibility less than 1 kilometers in fog, visibility within 500 meters to 200 meters in the fog, visibility is high concentration 50 meters high concentration. 4 at 16:50 in the afternoon, the Beijing meteorological observatory issued a yellow fog warning signal, is expected in the evening of 4 to fog on the morning of 5, visibility in some areas less than 500 meters. Tongzhou District meteorological station at 19:50 on the 4 to upgrade the release of heavy fog orange warning signal, is expected to the current 5 to 10, Tongzhou District fog, local visibility will be less than 200 meters thick fog. 4 at 20:10, Fangshan District Meteorological Observatory has also upgraded the release of heavy fog orange warning signal.相关的主题文章: