How to know whether it will rain or snow the next day?

Some basic ways to judge whether it is going to rain - If the distribution of fluffy cumulus clouds is very scattered, it can indicate good weather, but if the clouds expand or have new developments, it means that There will be sudden heavy rains. Cirrostratus clouds and cirrocumulus clouds are very high, where there is less moisture, and they generally do not bring rain or snow. Cirrostratus clouds slowly advance forward, and the weather will turn cloudy. Altostratus clouds often appear. It will rain or snow within a few hours. As soon as nimbus clouds form, continuous rain and snow will fall. The cumulonimbus clouds grow longer and higher, the cloud base slowly turns black, and the cloud peaks gradually become blurred. After a while, the whole cloud mountain collapsed, and dark clouds filled the sky. In an instant, thunder rumbled, lightning flashed, and soon there would be heavy rain, sometimes even bringing hail or tornadoes. Large areas of high-rise buildings behind cirrostratus clouds Clouds and nimbostratus clouds are signs of heavy wind and rain. Therefore, there is a saying of "midnight rain in the solar halo and noon wind in the lunar halo". Sunbursts and moonbursts mostly occur at the edges of altocumulus clouds. The blooms grow from small to large, and the weather It tends to be sunny. The Huahuan changes from large to small, and the weather may turn to cloudy and rainy. People often say: "The east rainbow booms and the west rainbow rains." This means that if the rainbow is in the east, there will be thunder but no rain; if the rainbow is in the west, there will be heavy rain. .……