Traditional Culture Encyclopedia - Weather forecast - What color warning does not need to go to school?
What color warning does not need to go to school?
When the yellow, orange and red warnings are issued, primary and secondary schools, kindergartens and nurseries are closed, and students who have not left school do not have to attend classes; Students on their way to and from school should go to a safe place nearby or go home under safe conditions; Under the premise of ensuring safety, schools should properly arrange students (including school buses and boarding houses) and arrange for students to go home from school.
When entering the state of rainstorm prevention, the teaching staff of secondary vocational schools, primary and secondary schools and special education schools should pay attention to the rainstorm warning information in order to deal with it in time when the weather suddenly deteriorates. When parents think it is necessary to delay admission, they can delay admission and inform the school in time; Schools should count and verify the number and location of personnel in time, and contact and pay attention to students on the way to ensure the safety of personnel.
Classification standard of early warning signal
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, namely, the 24-hour precipitation of 50 ~ 99 mm is called "rainstorm", the rainfall below 100 ~ 200 mm is called "heavy rainstorm", and the rainfall above 200 mm is called "extraordinary rainstorm".
The rainstorm warning is divided into four levels: blue, yellow, orange and red. The release standard of rainstorm yellow warning is: there will be more than 50 mm rainfall in the past 24 hours, and it is expected that there will still be more than 50 mm rainfall in the above areas in the next 24 hours; Or it is estimated that there will be more than 100 mm rainfall in the next 24 hours, and more than 250 mm rainfall in some areas.
Refer to the above content: Baidu Encyclopedia-yellow rainstorm warning signal
- Previous article:Weather in Yushu, Changchun City
- Next article:Do you have any good suggestions for going to Wuhan in mid-July?
- Related articles
- Miss Chun's composition is about 550 words.
- What's the weather like on 20 17? 20 17 weather trend forecast.
- Just unloaded the ink weather, there are too many advertisements. What weather forecast software do you use?
- I plan to visit Kunming, Dali and Lijiang in mid-March ~ visit Shangri-La for 4 days. What's the weather like in these places in March?
- What is the standard in winter?
- What do Japanese usually call Mount Fuji?
- Talking about the weather in Changde in English
- What are the interesting places in Baotou?
- An idiom that describes people feeling cold.
- It is hot in summer, and people are prone to lack of water. What fruit can I eat to replenish water?