Xinmin Evening News (Reporter Ma Dan) Today entered the "three nines" in the number of nine cold days, but today Shencheng is a little warm. Affected by radiative cooling, fog with visibility less than 500 meters was seen in some areas of Baoshan and Chongming this morning. During the day, as the sun rises, the temperature rises and the fog gradually dissipates. This morning, the lowest temperature at Xujiahui Station in the city was 70, the suburbs are back above freezing, the maximum temperature has reached 15, and the body feels much warmer than yesterday. According to the forecast of the Shanghai Central Meteorological Observatory, this year's "Sanjiu" is a bit unusual, and after the influence of cold air tonight, the temperature in Shencheng will warm up against the trend, and the weather in "Sanjiu" may be warm like "Xiaoyangchun".
Tonight, the cold air is about to arrive in Shanghai, under its influence, the northwest wind increases, the temperature will drop significantly, the minimum temperature in 48 hours can drop by up to 6 8, the temperature will only be 3 8 tomorrow, the coldest period of this round of cooling will appear on Thursday morning, at that time, the minimum temperature at Xujiahui Station in the urban area will fall to about 1, and the suburbs will fall below freezing again. This round of cold air will not affect for a long time, after which Shanghai will enter the heating channel. In the second half of the day, the minimum temperature remained above 4, and the maximum temperature was 15 16.
Generally speaking, in the "39" and "49", Shanghai ushered in the coldest stage of the year. However, it is necessary to distinguish between the "39" and "49" who is colder, from the point of view of the average temperature and the extreme minimum temperature, the "49" is the cold "champion" in the 150-year meteorological history of Shencheng. In the historical record, Shanghai's "49" has appeared -121 of the extreme minimum temperatures, with an average temperature of only 45℃。