What are the disastrous weather in America?

Hurricane (typhoon), tornado, snowstorm (cold wave), thunderstorm weather

The United States has almost all the climate types in the world (the land spans cold, warm and hot areas, and the mainland is in temperate zone). There are few serious droughts and floods in major agricultural areas, and the temperature is mild, so enough rainfall can be obtained. The climate in the United States is mainly influenced by the Arctic airflow, which brings a wide range of low pressure from the Pacific Ocean every year. When these low pressures pass through the Sierra Nevada, Rocky Mountains and Cascade Mountains, they carry a lot of water. When these pressures reach the Central Plains, they can recombine, leading to the meeting of major air masses and severe thunderstorms, especially in spring and summer. Sometimes, these rainstorms may join other low pressure, continue to spread to the east coast and the Atlantic Ocean, and evolve into a more intense northeast storm (Nor'easter), resulting in large-scale heavy snowfall in the northeastern United States and the mid-Atlantic region of New England. The vast grasslands of the Great Plains have also formed many of the most extreme climate change phenomena in the world.