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Typhoon is a very big wind. It usually starts in July, August and September

How does a typhoon come? In summer, when the sun heats down on the sea, the water gets hot. Then the hot water evaporates and goes up into the air. When the air gets very warm, it starts to move high up into the sky, and starts to move quickly, making wind. The wind goes in circles, and it keeps moving higher in the sky. And when the wind moves faster than one hundred and twenty kilometers an hour, a typhoon comes.

Typhoons are of great danger. When a typhoon comes, it usually brings strong winds and lots of rain. We should be careful when it comes. Don't go out or play on the beach.