Zhejiang Hangzhou large areas of stagnant water caused by rainstorms is not urban rainstorm water | | _ news

Washington will have no rain in Hangzhou small these days, we can be given an accident is, in the continuous heavy rain in the city Hangzhou has not water, quietly spent two days.

Hangzhou free of stagnant water

And the characteristics of the rain-related

This can not help but think of the evening of July 26 that rain, Hangzhou roads due to the number of water, dense, white horse, white Bridge Road apartments into the worst-hit areas in the vicinity, and water more than knee close to the thigh, 1/f, tenants home water overnight at Hotel.

Two rain is not the same size, and urban drainage systems have greatly improved? We look at the two rain.

Hangzhou meteorological station said that the July 26 under the short-time rainstorm in the evening, a thunderstorm caused by clouds, it is characterized by short-time rainfall is large and recent rains are persistent precipitation, due to the shear line of the genus effects, it is characterized by constant underground. In other words, a quick temper and a toughness.

According to statistics from Hangzhou municipal meteorological observatory, July 26, at 16 o'clock to 19 o'clock, 3 hours, 47 mm of rainfall in urban area of Hangzhou, largest city River pump station 117 mm. August 18, at 8 o'clock to 20th from 8 o'clock, within 48 hours, Hangzhou City 99.9 millimeters of rainfall, maximum Xiaoshan party Cove 195.8 millimeters.

A comparison, you can see two different in nature from raining. The same amount of rain, finished in 3 hours, and 48 hours after, the results are completely different. When the rain comes slowly, urban drainage system in an orderly manner and drained away; if the water is very large for a short time, drainage systems before draining water.

This is easy to understand why the rain in Hangzhou free of stagnant water.

By universal way, what storms, torrential rain, torrential rain. When the 12-hour accumulated rainfall exceeding 30 mm, torrential rain and more than 70 mm, is heavy and over 140 mm, for torrential rains. 24-hour rainfall of more than 50 mm, heavy rains over 100 mm rain and more than 250 mm, said the heavy rainfall.

This year the "salad" of August

This lined cloudy

Today, 13 straight days of rainy weather to rest. We finally usher is fine.

Provincial Observatory said that from August 8 to 20th, the province's average temperature of 25.8 degrees Celsius, than normal over the lower 2.2 c; average precipitation is 184 mm, more than usual over the 182%; average 17.8 hours sunshine hours, only years earlier about 20%; its cool rainy sunless severity goes well beyond 2002, row over the first. Contrast to last summer's "barbeque mode", in mid-August it has called the "Cole Slaw".

Today, causing large-scale heavy rains in Fujian, Zhejiang and Shanghai-cyclone systems have been out to sea, the province finally dissipate cloud and Sun, today and tomorrow mainly cloudy across the province, the rise of temperature can reach 31 c ~33 c.

Hangzhou this morning overcast cloudy, cloudy afternoon into the night; cloudy tomorrow, local sometimes overcast with showers or thunderstorms in the afternoon.

Though it was sunny, rainy days, after all, suppression, temperature cannot be recovered immediately sapped, maximum temperature of 31 degrees centigrade in Hangzhou today, lowest in the morning 21 degrees centigrade. Temperatures may not sound high, but cool days we experienced more than 10 days, may 1:30 fail to, we pay more attention to the body, change clothes in a timely manner.

Our intern Wang Yiran

Reporter Chen Weili

06:35 August 21, 2014
Qianjiang evening news