After reading The Day After Tomorrow, I feel a little confused.

I'm a bit of a researcher in this field. Please be patient and watch me speak slowly.

The cold current of 1 flows into the warm current, which will lead to the change of ocean current. The key point of the change is that it changes the air temperature over the ocean. How is the wind formed? Pressure difference! So how is the pressure difference formed? Air density! ! ! ! The density of air is determined by the temperature of air, so after the temperature of air changes sharply, the original pressure difference changes rapidly, which leads to a tornado.

Hail is caused by the sudden encounter between warm and humid air and strong cold air. A large amount of ice will form a huge cold current after melting, which is the coldest in the world. Therefore, compared with him, other regions have relatively warm and humid climates even if there is no warm and humid airflow in the meteorological sense. So once these two air currents meet, they will form extreme weather. In this case, there are two different situations.

1 Warm and humid air and cold air meet quickly, and a large number of water droplets instantly condense and fall, leading to blizzard weather.

When the warm and humid airflow meets the cold air slowly, the water droplets will have enough time to merge into a big hail before falling, so there is hail.

Hail in a tornado: inside and outside the tornado atmosphere, the external temperature is much higher than the internal temperature, which is generally the local environmental temperature, while the internal temperature of the tornado is extremely low, often hitting below zero. The principle is the same as above. Therefore, balance is the foundation of everything. Once the balance is broken, the world will be out of order. How's it going? It's detailed enough. (* _ *) Hee hee ..., extra points.