Cyclone is a natural calamity. Wind blows in violent speed with ferocious sound. Heavy rain, thunder and lightning are some other features of cyclone.
Abrupt change in atmospheric pressure is the reason of cyclone. If the pressure of atmosphere in a big area comes down suddenly, Wind begins to blow from all around violently. We call it cyclone. Cyclone occurs very often in the coastal regions of Orissa, Andhra Pradesh, Tamil Nadu and West Bengal. It also occurs in the coastal regions of Bangladesh.
When cyclone occurs, wind blows at great speed, often beyond 150 kilometers per hour. Tall trees, electric poles and towers are uprooted. Roofs are also blown away. It often causes high sea waves which rush at the sea shore. These sea waves often pass over many villages about 20 kms. Away from the sea. Houses are drowned. People are washed away and killed. Domestic animals and property are also washed away. Crops are completely damaged. In 1996 and 1997, a terrible cyclone occurred in Andhra Pradesh. Some villages were completely smashed in it.
In Orissa, cyclone very often affects Balasore, Kendrapara, Jajpur, Jagatsingpur, Konark, Puri, Gopalpur and other few areas of Ganjam. Sea waves come over villages and agricultural land. Terrible wind creates large scale damage. Massive deforestation near the sea shores the chief reason of this calamity. However, we can to so extent control the cyclone by creating forests on sea shore.