In News:

A devastating series of events unfolded in Vietnam, as a bridge collapsed and a bus was swept away by severe flooding, raising the death toll to at least 65. The fatalities are attributed to Typhoon Yagi and the subsequent heavy rains, which have wreaked havoc across the Southeast Asian country.

In Depth:

• The typhoon made landfall in Vietnam’s northern coastal provinces of Quang Ninh and Haiphong with wind speeds of up to 149 kilometers per hour (92 miles per hour) on Saturday afternoon.
• It raged for roughly 15 hours before gradually weakening into a tropical depression early Sunday morning.
• Vietnam’s meteorological department predicted heavy rain in northern and central provinces and warned of floods in low-lying areas, flash floods in streams and landslides on steep slopes.

What is a cyclone?

• The term 'Cyclone' is derived from the Greek word 'Cyclos' which means 'Coiling of the Snake'.
•  Cyclones are created by atmospheric disturbances around a low-pressure area and are usually accompanied by violent storms and severe weather conditions. Basically, a tropical cyclone is a deep low-pressure area.