Why is the same weather forecast different for every TV station?

If the forecasts all over the country, from provinces to counties and townships, are reported by the Central Meteorological Observatory, it is estimated that they must have been exhausted, and different regions and different situations need to be revised by the local meteorological department. For example, if your home is in the county seat, the forecast result of your city is likely to be different from that of your county seat, which involves a regional fine forecast problem, but generally speaking, there will be no big difference, there will be no heavy rain in the city and no sunny day in the county seat. In fact, the National Bureau is responsible for the assessment of the national weather situation, and the forecast is made as follows.

The Central Meteorological Observatory basically does not make specific local forecasts, but they are responsible for guidance and analysis. The sources of online forecast information are different, and it is normal to have differences, but generally there will be no big deviation.

If you want to get the latest weather forecast, you should listen to the weather forecast of China Central Broadcasting Station, but you should also consider it clearly. Although CCTV's weather forecast center has advanced facilities, their forecasts are all national, and the reference weather conditions are very wide, so small places are not very standard. So I suggest you watch the weather forecast broadcast by the municipal or provincial weather forecast meteorological station.

If the weather forecast is a chain, all you see is the end of the chain. At the top of the chain is the study of meteorological theory; After that, it is necessary to observe and monitor meteorological elements, such as how high the temperature is and how high the humidity is; Secondly, the results of theoretical research are applied to comprehensively process and judge the collected observation information, that is, to make a weather forecast; Finally, the forecast results are released to the public. The weather forecast that the public can see is only the last transmission. The real forecasting work takes place where people can't see it, which is the result of the joint efforts of a large number of meteorologists.