Dust storms attacked America again

A horrific dust storm swept into Arizona, USA on Monday, turning the sky into a gray-brown color and delaying some flights.

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A meteorologist at the American Weather Center said on the BBC , the storm created a dust wall about 1,000 meters high, moving at a speed of 65km / h.

This is the second storm to enter Arizona in just one month.

The latest storm also occurred in this area on July 5, making many people think of the end of the world. The storm caused Arizona's largest airport to close. Motorists on highways cannot keep moving because of limited visibility.

Large dust storms, also known as haboobs , appear quite popular during the Arizona rainy season from June to September each year. This dust storm often moves with winds of more than 100 km / h and forms towering dust walls.

With a desert like Arizona, the air is always so hot that raindrops cannot even fall to the ground, because they have evaporated in the air. This phenomenon creates a cooler airflow above, making the winds stronger. When the wind is strong enough, it will carry dust and sand from the desert into the air creating a high wall, creating great dust storms.