Storm level (when the storm level color stops)

Today, Xiaobian will share with you the knowledge of rainstorm level, and it will also analyze and answer when the rainstorm level color is closed. If you can solve the problem you want to know, pay attention to this website.

How is the color grade of rainstorm warning divided?

Every summer is the high season of storms. It is no exaggeration to say that one second may be sunny and the next may be thunder. In this state, the storm will come as scheduled.

Although this situation is normal, people all know the harm caused by rainstorm, but how is the color grade of rainstorm warning divided?

Generally speaking, the rainstorm warning signal is divided into four levels, which are mainly represented by four colors: blue, yellow, orange and red. The darker the color, the higher the grade and the greater the harm. Moreover, the classification of rainstorm warning mainly depends on precipitation and sustainability.

1, blue alert. The blue warning is 12 hours, and the rainfall reaches or has reached more than 50 mm, and it has a continuous state.

2. Yellow warning. For the yellow warning, it means that the rainfall can reach more than 50 mm within 6 hours, or it has exceeded 50 mm, and it has a continuous state.

3. orange warning. For the orange warning, it means that the rainfall reaches or has reached more than 50 mm within three hours, and it has a continuous state.

4. Red alert. For the red warning, it means that the rainfall has reached 100 ml or above within three hours, and it has a continuous state.

How did the storm form?

Although people are no strangers to storms, I believe that not everyone understands the formation of storms. The so-called storms often fall from cumulonimbus clouds, and the conditions for the formation of cumulonimbus clouds are that the atmosphere should contain enough water vapor, and the water vapor will be quickly transported upward under the strong upward movement, and the water droplets in the clouds will continue to increase under the influence of the upward movement until the upward airflow cannot support it, which will lead to the rapid fall of rain. In the later stage, coupled with the role of the wind, naturally formed a storm. Therefore, the formation of storms is mostly in hot summer.

What are the color grades of rainstorm warning?

0 1, blue

The first is the blue rainstorm warning signal. If the Meteorological Observatory issues a blue warning signal, it means that there will be more than 50 ml of rainfall in this area in the next half day, and some areas will continue to have more than 50 ml of rainfall. Generally speaking, this area will be affected by this rainfall in the next 12 hours. After receiving the blue rainstorm warning signal, the local government should immediately put the rainstorm prevention measures on the agenda and make corresponding arrangements.

02, yellow

If the yellow warning signal is issued, it means that there will be more than 50 ml of rainfall in this area in the next 6 hours. If affected by typhoon, there may be continuous rainfall. After receiving the yellow warning signal, the local traffic control department also needs to conduct traffic control to prevent traffic jams or traffic accidents. In addition, after the yellow warning signal is issued, all outdoor operations also need to be terminated.

03, orange

If the meteorological department issues an orange rainstorm warning signal, it means that there will be more than 50 ml of rain in this area in the next three hours. If some areas have been affected by heavy rain, they will be hit by heavy rain again in the next few hours. After receiving the orange warning signal, the residents must respond in time. For example, individual areas that are seriously affected need to suspend classes and work. If it is a mountainous area, flood control measures should be taken at the same time.

04, red

If a red warning is issued, it means that there will be more than 100ml of heavy rainfall in this area in the next three hours. The warning signal of this color is the worst, and the rainfall of 100ml is terrible. In addition, if it is a red warning, it means that the area will continue to be affected by heavy rain. After receiving the signal, the local area needs to suspend classes and work in an all-round way, even indoor work needs to stop immediately.

The order of rainstorm warning color grades from small to large

The rainstorm warning signal * * * is divided into four levels, which are represented by four colors: blue, yellow, orange and red.

Blue warning:/kloc-within 0/2 hours, the rainfall will reach more than 50 mm, or it has reached more than 50 mm and the rainfall may continue.

Yellow warning: within 6 hours, the rainfall will reach more than 50 mm, or it has reached more than 50 mm and the rainfall may continue.

Orange warning: within 3 hours, the rainfall will reach more than 50 mm, or it has reached more than 50 mm and the rainfall may continue.

Red warning: within 3 hours, the rainfall will reach 100 mm or above, or it has reached 100 mm and the rainfall may continue.

The rainstorm warning signal has four colors, which respectively represent different degrees of meteorological disaster risk. From low to high, they are blue, yellow, orange and red, and the corresponding levels are IV, III, II and I. ..

According to the warning signals of different colors, people should take different defensive measures. Residents in the blue rainstorm warning area had better stay indoors. When it is too late to enter the room, stay away from wires, avoid getting wet under big trees, hold metal objects or answer mobile phones, and stay away from billboards and simple buildings.

When the warning is yellow, people had better not ride bicycles or drive, and try to avoid driving in stagnant water. The traffic department should take traffic control measures in heavy rainfall sections. After the concave overpass and culvert accumulate water, the overpass should be blocked immediately and warning signs should be set up, and necessary drainage measures should be taken.

After the rainstorm orange warning or red warning is issued, special attention should be paid. All relevant departments should immediately enter the emergency post, closely monitor and take rescue measures; People near mountains, hills and rivers should be evacuated to safe areas immediately; When the vehicle turns off or cannot run normally, the driver should observe the road runoff. If the runoff gathers quickly, they should resolutely give up the vehicle to avoid it.

What are the grades of rainstorm?

Heavy rain is divided into three grades: heavy rain, heavy rain and heavy rain. According to China's meteorological regulations, rain with a precipitation of more than 50 mm in 24 hours is called "rainstorm". According to its precipitation intensity, it is divided into three grades, that is, the 24-hour precipitation is 50 ~ 99.9 mm, which is called "rainstorm"; /kloc-below 0/00 ~ 250 mm is "rainstorm"; More than 250 mm is called "rainstorm".