How does the summer afternoon prevent the weather?Ningbo Meteorological Expert tells you

In the 10-day forecast released by the Ningbo Meteorological Observatory on July 18th, it was mentioned that on July 19, there was a large range of rain or thunderstorms in our city, and it may be accompanied by short-term heavy precipitation, local area 8-10 thunderstorms and heavy winds and winds. Qianglei and other strong convection weather.

From July 20th, Ningbo City will turn into cloudy weather, and there are more decentralized thunderstorms in the afternoon. There may be strong convection weather such as short-term heavy precipitation, local 8-10 thunderstorms, and strong thunderstorms during thunderstorms.

In the face of the strong convection of "God's Ghost", how should we prevent? On the afternoon of July 18, the Municipal Meteorological Observatory held an information conference.

On July 17, the city encountered

Two rounds of strong convection weather

From noon on July 17th to the first night, affected by the subtropical high -pressure edges and high -altitude tanks, there were two rounds of strong convection weather in our city.

The first round of strong convection weather appeared from 12:00 to 14:00 on July 17th.

There was a storm in Fenghua District, and the 11th -level wind appeared in Qifeng, Lake Town in the area, and a 12 -level wind (33.7 meters/s) appeared in the dangtou. It was also the largest instantaneous wind.

In the short -term strong precipitation, thunderstorms, and strong thunderstorms, everyone may be unfamiliar with the booming fluent.

The so -called downstream storm refers to a kind of strong sinking air in a thunderstorm, which will generate a radiation or straight windy wind when it comes to the ground.

When it happens, it is usually manifested as a strong air flow to the ground from the sky. After contacting the ground, the airflow will spread in all directions. The closer to the ground wind speed, the larger the ground, and the maximum wind of the ground can reach level 15.

The harm it brings mainly is the extreme strong wind, strong destructive, can cause crops to fall, tree breaks, and even the collapse of the house. If it occurs on the water surface, it may be overturned, and the wind speed direction changes can easily cause the plane to crash.

Due to the short duration of the storm and the small scale, it belongs to the strong convection weather with sudden, locality, and small probability, so the forecast is difficult.

The second round of strong counterpart weather began to affect our city from 17:30 on July 17th. Most of the regions appeared at 8-10 thunderstorms and short-term rainstorms.

During the two rounds of strong convection weather, the maximum rainfall appeared in Luojiakeng, Qiangyu Town, Ninghai County, reaching 120 mm.

Tu Xiaoping, Chief Meteorological Expert of the China Meteorological Administration, chief forecast at Ningbo Meteorological Observatory, and Zhengye Senior Engineering, analyzed that this strong weather process has the characteristics of extreme, sudden and disaster.

Extremely reflected in strong winds. Qi Feng, Lake Town, Fenghua District, appeared 11 -level winds (30.1 meters/s), and a 12 -level wind (33.7 meters/s) appeared in the head of Lake Lake.

Suddenness is mainly manifested in characteristics such as sudden wind speed, wind direction mutation, and air pressure rising.

Taking the Tongtou of Puhu Town as an example, two winds have increased by two winds and two winds drop. The two stations have a mutation of 90 ° between the west wind and the south wind. In just 12 minutes, the air pressure rose sharply by 4.5 hundred Pache.

The occurrence time, strong wind and fast change, is also an important reason for the disastrity of the strong flow of weather.

One is "wind blowing grass movement"

Hurry up to take defense measures

In the next week, rain or thunderstorms will still "go" from time to time. Especially since July 20, as the subtropical high pressure is strengthened, the temperature rises significantly, and the weather is "wind blowing and grass movement", which may cause strong convective weather.

To this end, Ningbo Meteorological Department made suggestions-

Knowing the strong and defensive notifications issued by the local meteorological department in a timely manner, and the emergency measures;

Stop outdoor operations in time, pedestrians and outdoor personnel should immediately hide into safety buildings with lightning protection facilities. Do not stay near gazebo, dangerous houses, and temporary sheds;

Properly resettlement, reinforcement, and outdoor items that are vulnerable to strong winds or are easily attacked by hail attacks, try to avoid temporary buildings such as billboards as much as possible;

Stay away from metal devices such as wires, water pipes, metal doors and windows, iron wire mesh, cut off the hazardous power supply, and turn off the doors and windows. Try not to use TV, telephone and other electrical appliances without lightning device;

If you encounter thunderstorms in the open space, do not take an umbrella and use your mobile phone, do not carry the metal rod on your shoulders, do not avoid the rain under the tree, under the electric pole, and the tower crane. Try to squat your knees with your knees with both hands and squat your body. It

When walking in outdoor water, pay attention to observation, get close to the building to prevent falling into the well, the pit, etc.;

When driving the vehicle is too deep, you should try to bypass as much as possible to avoid forcibly passing. If the car goes off at the low -lying water accumulation, people must not wait on the car, get off the car to the high place to wait for the rescue;

In the dangerous zone, according to the characteristics of production and operation and the need for disaster prevention and mitigation, it takes measures to suspend production, stop work, suspend business, and suspend classes to protect the safety of working staff and students.

Reporter Shi Chengcheng Correspondent Gu Xiaoli

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