What are the characteristics of a cyclone?

Characteristics of Cyclone

• The average speed is 120 kmph. Although it may vary from 32 kmph to 200 kmph or more. At times it reaches 400 kmph also.
• They have closed isobars. The pressure gradient is very sharp.
• Tropical cyclones develop over oceans and seas only. They are most violent and vigorous over water.

What scale is used for tropical storms?

Saffir-Simpson Hurricane Wind Scale
Although developed in the USA, tropical cyclones around the world are measured by the Saffir-Simpson Hurricane Wind Scale which originated from 1971 with Herbert Saffir, a civil engineer and Bob Simpson of the US National Hurricane Center.

What is a severe cyclone?

Severe cyclonic storm. A cyclonic disturbance in which the maximum average surface wind speed is in the range of 48 to 63 knots (89 to 118 km/h).

What are 5 general characteristics associated with a tropical cyclone?

Tropical Cyclone Characteristics

• Hurricane force winds generally extend out about 100 km (60 miles) from the centre.
• Storm force winds may extend out as much as 500 km (300 miles)
• Maximum wind speeds between 12 and 50 km from centre.

How are the 4 stages of a tropical cyclone distinguished?

Meteorologists have divided the development of a tropical cyclone into four stages: Tropical disturbance, tropical depression, tropical storm, and full-fledged tropical cyclone. When the water vapor from the warm ocean condenses to form clouds, it releases its heat to the air.

How strong is a tropical storm?

A tropical storm is a tropical cyclone that has maximum sustained surface winds ranging from 39-73 mph (34 to 63 knots). A hurricane is a tropical cyclone that has maximum sustained surface winds of 74 mph or greater (64 knots or greater).

What category is very severe cyclonic storm?

Extremely Severe Cyclonic Storms have hurricane-force winds of 90–119 kn (166–221 km/h, 104–137 mph). The highest classification used in the North Indian Ocean is a Super Cyclonic Storm, which have hurricane-force winds of above 120 kn (138 mph; 222 km/h).

What is cyclonic wind speed?

Wind. Cyclones have gale force winds with wind gusts in excess of 90 km/h around their centre. In the most severe cyclones, gusts can exceed 280 km/h. These winds can cause extensive property damage and turn airborne debris into potentially lethal missiles.

What makes a storm a tropical storm?

Tropical Storm: A tropical cyclone with maximum sustained winds of 39 to 73 mph (34 to 63 knots). Hurricane: A tropical cyclone with maximum sustained winds of 74 mph (64 knots) or higher.

Which weather disturbance is considered the most destructive because it is characterized by heavy rains and accompanied by violent wind?

The most dangerous and destructive part of a tropical cyclone is the eyewall. Here winds are strongest, rainfall is heaviest, and deep convective clouds rise from close to Earth’s surface to a height of 15,000 metres (49,000 feet).

What are the 5 stages of a cyclone?

Quick Guide to the Stages of Tropical Cyclones

• Tropical Disturbance. A tropical disturbance is a cluster of showers and thunderstorms that flares up over the tropics.
• Tropical Depression.
• Tropical Storm.
• Hurricane/Typhoon/Severe Cyclonic Storm/Severe Tropical Cyclone.
• Case Study: Hurricane Isabel.

What are the 3 stages of tropical cyclone?

Life History of Tropical Cyclone

• Formative Stage.
• Immature Stage.
• Mature Stage.
• Decaying Stage.

What is Category A Very Severe Cyclonic Storm?

A Very Severe Cyclonic Storm is the third highest category used by the India Meteorological Department (IMD) to classify tropical cyclones, within the North Indian Ocean tropical cyclone basin between the Malay Peninsula and the Arabian Peninsula.

What is the maximum wind speed of a cyclone?

Within the basin a very severe cyclonic storm is defined as a tropical cyclone that has 3-minute mean maximum sustained wind speeds of between 64–89 knots (119–165 km/h; 74–102 mph ).

What are the characteristics of a tropical cyclone?

Characteristics of tropical cyclones A tropical cyclone is a rapid rotating storm originating over tropical oceans from where it draws the energy to develop. It has a low pressure centre and clouds spiraling towards the eyewall surrounding the “eye”, the central part of the system where the weather is normally calm and free of clouds.

What does the Blue Line mean on a cyclone chart?

The blue line represents all tropical cyclones (surface winds greater than 17 m s-1 or 34 knots); shading represents tropical cyclones of hurricane strength (surface winds greater than 33 m s-1 or 64 knots). Average annual cycle of tropical cyclone occurrence for each ocean basin.