1854 1 1 month 14, when night fell and dark clouds were gathering, huge waves were set off on the black sea in southeastern Europe, followed by a terrible storm. The British-French joint fleet, which was fighting against the enemy at that time, had just arrived here and was immediately attacked by this storm. The main flagship' Arnli -4' sank and almost all the troops were wiped out. The storm caused great losses to the allied forces. This gave Charles Louis Napolé on Bonaparte, the French ruler at that time, a great shock. He ordered Le Verrier, a famous astronomer at that time, the discoverer of Neptune and the director of the Paris Observatory, to make a comprehensive investigation into the motion law of the storm. Le Verrier immediately collected observation data from all over the country and inquired about the weather conditions from 1 1 month 12 to1February 16 in detail, and then marked these results on a blank map. After careful study, Le Verrier was surprised to find that the Black Sea storm that attacked the British and French allied forces moved from the northwest of Europe to the southeast at a certain speed. After reasoning, Le Verrier thought that if there was a "weather map" in advance, the storm could be completely avoided. Since then, the "weather map" has appeared.
The earth where human beings live is surrounded by a thick' air ocean'-the atmosphere. The air troposphere is about tens of kilometers at the bottom of the' air ocean', which is the main reason for the earth's climate change. The change of temperature causes air convection and forms air vortex. The movement of this air vortex formed a storm. Storms usually move in a certain direction at a certain speed from the formation site (usually on the ocean surface). The moving direction and speed of the storm are related to the temperature changes in various places. Therefore, if we summarize, analyze and study the climatic conditions in various places at this time, we can predict and broadcast the movement of the storm and become a weather forecast. In China, the observation results of local meteorological stations are summarized by the Central Meteorological Observatory, and then released to the whole country after analysis and research, which becomes the' weather forecast' of the Central Meteorological Observatory.