Why does it rain on a sunny day?

199 1 year1kloc-0/October 30th, in Baota village, Duzhenwan Town, Changyang Tujia Autonomous County, Hubei Province, there was no cloud in Wan Li, Wan Li, and suddenly a shower fell from the sky, just one meter square and lasted for several days.

At 199 1 year11October 6 17 10, Wan Li, Anhui province, was clear and cloudless. Strangely, it suddenly began to rain the size of a grain of rice and lasted for one minute.

One day in July 2004, a group of tourists visited Lushan Mountain in Jiangxi Province. It was a clear sky and scorching sun in Wan Li. The tourists are in high spirits, playing while climbing the mountain. At noon, a large white cloud rose slowly from the foot of the mountain.

After a while, I heard a faint thunder coming from the clouds. As the clouds are below the tourists, people can clearly feel the "rumbling" thunder coming from their feet. Suddenly, a shower of rain hit the tourists.

"The weather is so good, why does it rain?"

People looked up in doubt and saw that the sky above them was still clear and blue, without a cloud. Overlooking your feet, you can only see clouds rolling, overwhelming and sparkling rain, but clouds floating from the mountainside!