Why should the news be broadcast first and then the weather forecast?

Because it was the first news broadcast, the weather forecast appeared at the end of the program as an attachment of the news broadcast, and then it was separated from it and became an independent column. . . In earlier years, China TV news set the broadcast time of weather forecast as 19:3 1, but now it is not this number. Many meteorological enthusiasts still call the weather forecast as 193 1.

Satisfied, please adopt.