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February 20, 2013

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Ice may linger today but warmer, drizzly weather will move in soon

THE snow has gone but drizzling rain may return to the city tomorrow with a rise in the mercury as the cold front passes, forecasters said.

Warm and wet air from the south should push temperatures back above 10 degrees Celsius during the weekend, said the Shanghai Meteorological Bureau.

Today is forecast to be cloudy to overcast with the temperature ranging from 0 degrees Celsius to a high of 7 degrees. Tomorrow also should be overcast with drizzle in part of the city. The low should rise to 3 degrees Celsius with a high of 8.

Heavy snow affected Shanghai as well as the entire Yangtze River Delta region yesterday morning under the influence of both warm and cold air.

"Most of the snow appeared from 5am to 9am and the accumulation in the suburbs reached the deepest, 3 to 6 centimeters, while in downtown it was much lighter, about 1 centimeter," said Zhang Ruiyi, a chief service officer of the bureau.

The bureau lifted the cold wave and snow alerts later in the day as the temperature quickly rose above 0. The icy road alert was also lifted in the afternoon as ice and snow melted.

Zhang reminded people that there may be ice in some areas of the city this morning as the temperature will be low.

"The extreme low in the suburbs could still be down to minus 1 to 3 degrees Celsius, where ice could reoccur," she added.

The weather yesterday brought the cleanest air to the city since the adoption of a new, more stringent air evaluation system in mid-November.

Tiny PM2.5 particulates, the city's major pollutant in winter, remained below 30 micrograms per cubic meter during the entire day yesterday. In the early morning, the figure was less than 10.

The reading of the fine particles started to rise at 9am and reached a peak of 28 micrograms per cubic meter at 3pm.

At 5pm, the reading was 16.8 micrograms per cubic meter and its density in the latest 24 hours was 14.1 micrograms per cubic meter, far lower than the national limit of 75 micrograms per cubic meter.


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