The Beijing Meteorological Observatory issued at 9 o'clock on the 14th: Today's daytime is cloudy with moderate to heavy snow, the north wind is two**, and the maximum temperature is minus 2;There is light snow or scattered light snow at night, the north wind is two, three and four, and the minimum temperature is minus 5.
In the blizzard orange, road icy yellow and cold wave blue warnings, there is still significant snowfall today, the roads are slippery, and the body feels cold, please pay attention to cold and warmth and travel safety, and pay attention to traffic safety when driving.
From 05:00 on December 13, 2023 to 09:00 on December 14, 2023, the average precipitation in Beijing is 40 mm, urban average 47 mm;The heaviest precipitation occurred in Haidian Fenghuangling 80 mm, the maximum precipitation intensity occurred in Xiangying Village, Yanqing at 11-12 o'clock on the 13th0 mm hours. The heaviest precipitation in the last hour was 14 mm. Snow is expected to maintain or slightly intensify in the next 2 hours.
City management departments at all levels in the city.
Make every effort to do a good job of snow and ice shoveling.
In order to cope with this round of snowfall, the city's urban management departments at all levels have made every effort to do a good job in snow removal and ice shoveling, and a total of 5 professional operators have been dispatched30,000 people. 5,932 snow and ice removal vehicles were dispatched, 3,002 sets of mechanical snow removal equipment and 4 manual snow removal equipment were used20,000.
Buses and subways have taken multiple measures to cope with snowfall.
After the snowfall, in order to ensure everyone's smooth travel, buses and subways are also taking multiple measures. Affected by the snowfall, during the morning rush hour today, the peak operation of the subway was extended, the number of ground buses was increased, and the snow and ice shoveling were prepared to jointly ensure the travel of citizens.
What is the difference between dry and wet snow?
How to tell the difference?The long-awaited snow finally arrived as scheduled, and everyone could enjoy the snow scene and play in the snow. However, there are also dry and wet snow. You can see the difference between the two by watching snowball fights. The snow that scatters as soon as you shoot is dry snow, and the kind of snow that tends to form clumps is wet snow.
In general, the snow in the north is more dry, while the south is mainly wet snow, which is mainly caused by different air humidity. That's why many people go to the Northeast in winter, because the cedars there are soft and soft, and when they are sprinkled, they are like scattered flowers by the goddess, which is especially easy to film. However, don't look at the snowflakes are light and soft, but in fact, they are more "heavy" than most people think.
We often hear the news that after heavy snowfall, heavy snow will break tree branches and even collapse buildings in some areas.
How much does a snowflake weigh that looks light?To understand how heavy snow there is, you must first understand how much snow falls. Snowfall is the amount measured in millimeters after turning snow collected in 12 hours or 24 hours into water in a standard container. Snow depth refers to the vertical depth from the surface of the snow to the ground, which is how thick the snow is as we usually understand it, in centimeters.
Experts said that in China, the deepest snow is mainly distributed in the eastern part of Northeast China, the northeast of Inner Mongolia, the central and northern parts of Xinjiang and the western part of Xinjiang. The annual snow cover can reach more than 30 centimeters, and locally more than 50 centimeters, almost up to the knees. We know that 1 cubic meter of water weighs 1000 kilograms, which means that on an area of one square meter, 8-10 millimeters of snow is about 1 kilogram. On a 100-square-meter flat roof, if the snow is 1 finger thick, it is 333 mm. It will withstand a weight of more than 3-5 tons. Therefore, during the heavy snow season, it is necessary to clean the snow on the roof in time to ensure safety, and stay away from billboards, temporary structures and ancient trees outdoors.
Please take care of these safety tips when traveling in snow.
*: Comprehensive BRTV News (Reporter Kang Lu, Wang Yan, Lu Lin, Yang Jun), @气象北京, @应急管理部.
Editor: Han Yuyan and Gao Changyue.