Why does it rain when the typhoon comes?

Typhoon is a huge rising cloud, and its airflow is rising. Typhoon brings huge water vapor from the ocean. Due to the action of updraft, it meets the hot air mass above the ground, and the temperature of water vapor decreases, thus causing rainfall. ?

The center of the typhoon is the eye of the typhoon. Downward currents prevail, and the pressure is usually very high, so it will be sunny. Outside the eye of the typhoon, there is a vortex wind and rain area, where updraft prevails, forming a low pressure, and there is often a large range of rainfall, and the rainfall will be very large.

The cause of typhoon is that the tropical sea surface is directly exposed to the sun, which makes the sea water temperature rise, the sea water evaporates into steam, and the surrounding cold air flows in to replenish it, and then rises again. This cycle will eventually make the whole air flow expand.

Extended data

Matters needing attention when typhoon comes.

1. When the typhoon comes, especially the doors and windows facing the typhoon, be sure to lock them to avoid being blown open by the wind, causing the doors and windows to break and fly out to hurt passers-by.

If you have to go outdoors in a typhoon, you must wear a raincoat and rain boots, and be careful not to take an umbrella. Because of the typhoon weather, the wind and rain are heavy, the umbrella can't be held at all, and it is easy to be blown away, which affects the progress.

When the typhoon comes, you can't live in old houses or some temporary wooden houses for personal safety. These houses are unstable and easy to be blown down by typhoons, and the roofs are easy to be lifted by typhoons, so you must have a safe haven.

4. When the typhoon is coming, fix the trees and telephone poles around the house in advance, tie them with ropes and pull them to the ground for fixing, so as to avoid being blown down by the typhoon and damaging the house.

Baidu Encyclopedia-Typhoon