What factors should be considered in weather forecast?

Airflow, pressure, temperature, etc. Many factors will affect the movement of cold and warm air and cumulonimbus clouds. Unlike moving on the ground, they are infinite at high altitude, so it is quite difficult to analyze and predict them. Therefore, it is necessary to study many complex motions, such as fluid mechanics and turbulence.

The weather is very unpredictable.

There is a famous saying that you should have heard: a butterfly flapping its wings in the Amazon jungle may trigger a storm in Siberia.

There are too many unpredictable factors in the weather forecast.