How many times does the weather forecast change a day?

The weather forecast is generally updated every 6 hours and 4 times a day. In the future, with the improvement of technology and equipment, the number of updates will increase accordingly.

The traditional forecasting method provides services for the public with 24-hour process forecasting for a long time, which is divided into two time periods: day and night. After the 6-hour fine forecast service is started, the weather forecast is divided into four periods, and the public can know the weather phenomenon, maximum and minimum temperature, precipitation, prevailing wind direction and maximum wind force every six hours within 24 hours, in which the precipitation will be accurate to the millimeter.

In the future, the National Meteorological Center will release six-hour refined guidance and forecast products for big cities twice a day. The meteorological departments of municipalities directly under the central government, provincial capital cities and cities with separate plans, in combination with the service demand, carry out near-field forecasting services such as rainfall intensity and quantitative precipitation, and fine forecasting services for major blocks. , and make refined meteorological elements forecast products in big cities (6: 45, 10: 30, 16: 30), three times a day, broadcast, television, internet and mobile phones.

"Tonight to tomorrow ..." In our impression, this familiar phrase is the prelude that the weather forecast will never be out of date. However, starting from 1, the opening line with the highest appearance rate may have a new opponent: "It is expected that the next six hours ..." The reporter learned from the website of China Meteorological Bureau that from September 1 day, the 24-hour weather forecast of municipalities directly under the central government, provincial capital cities and cities with separate plans will no longer take 12 hours as the "watershed", but be subdivided into the morning. As a result, China officially launched a refined weather forecast every six hours in big cities (once every six hours on average).