When is the cloudy weather forecast of Shanghai Meteorological Observatory?

The local cloudy weather forecast by Shanghai Meteorological Observatory is 65438+70s. The earliest meteorological observatory in China was the Shanghai Xujiahui Observatory built at 1872. The weather forecast at that time only contained vague and simple contents such as uncertain wind direction, changeable weather and possible rain. In July, 1980, China's first TV weather forecast was broadcast on CCTV. Now the weather forecast you see has used high-tech means such as satellite and radar, including short-term forecast for one or two days, long-term climate forecast across seasons and years, real-time system forecast and so on.