Source: Ice City + 2021/10/26
On the morning of the 25th, when the curtains were opened and looked out, the main city was white. Due to the small ground wind in the main urban area, the meteorological conditions of atmospheric diffusion are poor, and the main urban area has smog weather.
Harbin mobile phone reporter Hal Wang / photo
The foreman of the Harbin Meteorological Observatory said that from the perspective of meteorological conditions, the current temperature near the strata of Harbin Ishi is high, there is a significant warm advection in the lower layer, there is a strong inversion of temperature in the lower layer, the ground wind is not large, and the meteorological conditions for atmospheric diffusion are generally poor. Affected by less wind, there was a haze weather.
According to statistics, from 00:00 to 08:00 on the 25th, the minimum wind speed in all stations in the main urban area was only 0.4m/s, which was a level 1 wind, and from the wind level, it was only "soft wind", and even the "breeze" was not reached.
Harbin news mobile phone reporter Spring rain run life / photo
When will the smog weather improve? On the night of the 26th, as cold air entered, the inversion layer was destroyed, and the wind increased, and the meteorological conditions for atmospheric diffusion improved.
However, after the meteorological conditions of atmospheric diffusion improve on the night of the 26th, it will gradually deteriorate from the 28th to the 30th. It is initially expected that the temperature will rise slightly on the 28th, turn to the southwest wind on the 29th, and the wind will decrease slightly until the cold air enters on the 30th, and the meteorological conditions for atmospheric diffusion are poor before the precipitation begins. Subsequently, affected by precipitation and cold air, the meteorological conditions of atmospheric diffusion improved.
This week is really a very "volatile" week!
Author: Chen Yue / Wen Ha Bao mobile phone reporter Har Wang Chun Yu Run Wusheng / Photo Editor: Wang Still