Zhuge Liang can be regarded as the east wind, why can't burning grain above be regarded as the heavy rain?

Zhuge Liang can guess the weather according to the astrology, so he can borrow the east wind from Chibi, but he doesn't know that rain can also form in the valley terrain, because he doesn't know much about the weather changes in the upper valley.

When Liu Bei and Wu Dong formed an alliance, didn't Zhuge Liang just borrow fog from straw boats? Borrow? Cao Cao's arrow is coming, especially Battle of Red Cliffs. Borrow? In this battle, Zhuge Liang's mastery of astronomy and geography was highlighted by the east wind. In addition, his familiarity with the weather in Chibi is also very important. When he was young, he lived in seclusion not far from Chibi and learned about the weather for many years. Then, according to the change of astronomical phenomena, it is estimated that there will be a southeast wind, and the yellow cover of false surrender will set fire to the southeast wind as a signal. The time to go to the valley is different. At that time, he had made many northern expeditions and had to deal with the affairs of Shu Han. Naturally, he didn't have time to study the local weather changes in Shanggu slowly, so he could only speculate according to the weather.

As a result of alternating hot and cold science, Zhuge Liang chose Shanggu because it looks like a valley. Gourd? All he had to do was put Sima Yi in the urn, then sealed Taniguchi and set it on fire, and Sima Yi had nowhere to escape. The fact is also carried out step by step according to Zhuge Liang's design. Sima Yi and his son thought there was no hope of survival at that time. However, the fire suffocated by this gourd has formed a surging fiery gas, and when there is nowhere to go, it can only rise. When hot air meets cold air in the sky, it liquefies into? Rain? This is what Zhuge Liang could not predict by observing the astrology. It is the connection between land type and airflow. What a pity! Something unexpected happens in the sky? A heavy rain drenched his hard work and killed Sima Yi.

? Man proposes, God disposes, can't be strong? Zhuge Liang's last Northern Expedition was disheartened by the heavy rain, and his enthusiasm was extinguished by the heavy rain without giving me time. I wonder what you think of this war?