Why is the weather forecast still cloudy and sunny?

Weather forecasts are probabilistic forecasts and cannot be 100% accurate.
For example: After the forecast, a butterfly fluttered its wings in South America. As a result, due to complex global connections, the wind direction and clouds in your home were changed.

1. Weather forecast is the pre diction of future weather conditions based on the current state of the atmosphere and the principles of atmospheric dynamics and thermodynamics. Since the atmosphere is a complex dynamic system, there are certain uncertainties and errors in its pre dictions, especially in short-term weather forecasts in local areas.
2. Cloudy days and sunny days are not absolute concepts, but are defined based on the relative conditions of meteorological factors such as cloud thickness and light intensity. Sometimes, although there are more clouds in the sky, if the clouds are thin, the light on the ground may still reach a certain intensity. In this case, the Meteorological Bureau may judge it as a sunny day.
3. The weather conditions released by the Yucheng Meteorological Bureau are based on data analysis from local meteorological observation stations. The observation instruments and algorithms they use will compre hensively consider a variety of meteorological factors, including temperature, humidity, wind speed, cloud cover, etc., to determine weather conditions. Therefore, even if it appears cloudy to outside observers, the Bureau of Meteorology may provide a clear judgment based on more compre hensive data.
4. In addition, the perception of weather is also affected by geographical location and time. Cloudy skies may be more noticeable in some areas and less so in others. The weather conditions provided by the Meteorological Bureau are often for the entire Yucheng area, and there may be different weather conditions in different areas.
5. Finally, weather forecasters refer to various forecast models and weather maps, which provide large-scale weather trends and possible changes. Therefore, even if it looks cloudy in some areas, if the overall weather system points to sunny weather, the Yucheng Meteorological Bureau will issue a sunny forecast accordingly.