Tuesday, August 11, 2015

Cyclone Hudhud - The Devastation and its Aftermath

Cyclone Hudhud - The Devastation and its Aftermath
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 Cyclone Hudhud unleashed its full fury with devastating effect on Visakhapatnam on 12th October, making landfall at noon and hurling through neighboring areas, ripping apart coastal cities and towns and leaving a trail of destruction.

According to the state government, about 2.5 lakh people in 320 villages of 44 mandals (blocks) in the districts of Visakhapatnam, Vizianagaram, Srikakulam and East Godavari are affected by the cyclonic devastation. The cyclone claimed 21 lives, damaged as many as 6,836 houses while the number of boats missing or damaged has been put at 181.

Eastern Power Distribution Company of Andhra Pradesh Limited alone is estimated to have suffered a loss of Rs 40,000 crore.

About 16,000 electric poles were knocked down by cyclone fury that also left around 6,000 transformers damaged. Damages to Rashtriya Ispat Nigam Limited (Vizag steel plant) were estimated at Rs 1,000 crore, Indian Navy Rs 2,000 crore, Andhra University Rs 300 crore and Vizag airport Rs 500 crore, Naidu said.

Relief Operations:
More than 1.35 lakh people have been rehabilitated at 223 medical teams equipped relief camps, where 5.62 lakh persons are being provided food.

Prime Minister Narendra Modi inspected the cyclone-hit areas to assess the situation and announced Rs 1000 crore-aid as an interim relief for the cyclone affected areas by the Centre.

As many as 24 National Disaster Response Force (NDRF) teams, two Army columns, 56 boats/launches and six helicopters were deployed for relief measures.

Andhra Pradesh Chief Minister Chandrababu Naidu asked the Centre to declare the very severe cyclone storm ‘Hudhud’ that hit the state’s coast as a national calamity and also sought an ad hoc relief package of Rs 2,000 crore.

How Cyclone Hudhud got its name?
 The name Hudhud in Arabic refers to the Hoopoe bird.
The Hudhud, or hoopoe bird, the national bird of Israel is an exotic creature noticed for its distinctive crown of feathers and is widespread in Europe, Asia and North Africa.

The WMO/ESCAP Panel on Tropical Cyclones at its twenty-seventh Session held in 2000 in Muscat, Sultanate of Oman agreed in principal to assign names to the tropical cyclones in the Bay of Bengal and Arabian Sea. The eight countries - India, Pakistan, Bangladesh, Maldives, Myanmar, Oman, Sri Lanka and Thailand - took part and came up with a list of 64 names - eight names from each country - for upcoming cyclones in the spirit of co-operation and consensus.

The last cyclone in the region was Nanauk in June, 2014 a name contributed by Myanmar.

The next cyclone in the northern Indian Ocean region will be named Nilofar by Pakistan followed by Priya (Sri Lanka) and Komen (Thailand).

What is a Cyclone?
The word cyclone has been derived from Greek word ‘cyclos’ which means ‘coiling of a snake’. The word cyclone was coined by Heary Piddington who worked as a Rapporteur in Kolkata during British rule. The terms “hurricane” and “typhoon” are region specific names for a strong “tropical cyclone”. Tropical cyclones are called “Hurricanes” over the Atlantic Ocean and “Typhoons” over the Pacific Ocean.

A tropical cyclone is a rotational low pressure system in tropics when the central pressure falls by 5 to 6 hPa from the surrounding and maximum sustained wind speed reaches 34 knots (about 62 kmph). It is a vast violent whirl of 150 to 800 km, spiraling around a centre and progressing along the surface of the sea at a rate of 300 to 500 km a day.

Cyclone Prone Areas in India
 India has a coastline of about 7,516 km of which 5,400 km is along the mainland. The entire coast is affected by cyclones with varying frequency and intensity. Although the North Indian Ocean (the Bay of Bengal and Arabian Sea) generates only about 7% of the world's cyclones (5 to 6 Tropical Cyclones per year) their impact is comparatively high and devastating, especially when they strike the coasts bordering the North Bay of Bengal.

Thirteen coastal states and Union Territories (UTs) in the country are affected by tropical cyclones. Four states (Tamil Nadu, Andhra Pradesh, Orissa and West Bengal) and one UT (Puducherry) on the east coast and one state (Gujarat) on the west coast are more vulnerable to cyclone hazards.

The India Meteorological Department (IMD) is the nodal government agency that provides weather services related to cyclones in India.

Classification of Cyclones in India:
The criteria followed by Meteorological Department of India (IMD) to classify the low pressure systems in the Bay of Bengal and in the Arabian Sea as adopted by World Meteorological Organisation (WMO) are as under:
Type of Disturbances Associated Wind Speed in the Circulation
Low pressure Area Less than17 knots (<31 kmph)
Depression 17 to 27 knots (31 to 49 kmph)
Deep Depression 28 to 33 knots (50 to 61 kmph)
Cyclonic Storm 34 to 47 knots (62 to 88 kmph)
Severe Cyclonic Storm 48 to 63 knots (89 to 118 kmph)
Very Severe Cyclonic Storm 64 to 119 knots (119 to 221 kmph)
Super Cyclonic Storm 120 knots and above (222 kmph and above)


Recent Cyclones of Andhra Pradesh
Name of the Cyclone Year of Occurrence
Hudhud 12 October 2014
Lehar 25 November 2013
Helen 21 November 2013
Nilam October 2012
Laila May 2010
Khai-Muk November 2008
Yemyin June 2007


The recent deadly cyclones that hit Indian coast
Cyclone Phailin (2013) – The Cyclone Phailin is a category 5 storm that struck the Odisha and Andhra coast on 11 October 2013 causing massive destruction in the region- affecting 12 million people. Phailin is a Thai word which means Sapphire. This cyclone prompted India's biggest evacuation in 23 years with more than 5,50,000 people being moved from the coastline in Odisha and Andhra Pradesh to safer shelters. Phailin brought very heavy rain of over 600 mm at many stations of Odisha. It also damaged crops worth Rs 2,400 crore and claimed over 40 lives. Loses due to Cyclone Phailin were estimated to be around rupees 420 crore.

Cyclone Nilam (2012) - Cyclonic Storm Nilam was the deadliest tropical cyclone to directly affect south India that made landfall near Mahabalipuram on October 31 as a strong cyclonic storm with peak winds of 85 kmph. Nilam caused economic losses of around Rs 100 crore because of torrential rain.

Cyclone Thane (2011) - Thane was the strongest tropical cyclone of 2011 that became a very severe cyclonic storm on December 28, as it approached the Indian states of Tamil Nadu and Andhra Pradesh and made landfall at north Tamil Nadu coast between Cuddalore and Puducherry on December 30. Thane left at least 46 people dead in Tamil Nadu and Puducherry. Cuddalore and Puducherry were the worst affected areas.

Cyclone Laila (2010) - Severe cyclonic storm Laila made a landfall in Andhra Pradesh on the 20 May 2010 and caused major flooding and damage along its path. Ongole in Andhra Pradesh recorded heavy rainfall of about 460 mm in just two days. Another town Addanki received the highest rainfall of 522 mm. The state government faced a loss of over Rs 500 crore due to Cyclone Laila.

Cyclone Jal (2010) - Cyclone Jal killed at least 54 people in India alone. About 300 thousand hectares of cropland was devastated by the cyclone. The remnants of Jal continued to move northwest, brought light to moderate spells of rain in India's warmest state of Rajasthan and also in Gujarat.

Cyclone Phyan (2009) - Cyclonic Storm Phyan developed as a tropical disturbance in the Arabian Sea to the southwest of Colombo in Sri Lanka on November 4, 2009 and made landfall in south India on November 7. Massive damage to property was reported in coastal districts of Maharashtra, such as Ratnagiri, Raigad, Sindhudurg, Thane and Palghar.

Cyclone Nisha (2008) - Over 180 people were killed in Tamil Nadu alone due to heavy rain and floods caused by the cyclone. Orathanadu, in Thanjavur District in Tamil Nadu received over 990 mm of rain within 24 hours. The total amount of rainfall received from Nisha was about 1280 mm. The damage caused by the cyclone was estimated to be about 3789 crores.

The 30 Deadliest Tropical Cyclones in World History
Rank Name / Areas of Largest Loss Year Ocean Area Deaths
1. Great Bhola Cyclone, Bangladesh 1970 Bay of Bengal 500,000
2. Hooghly River Cyclone, India and Bangladesh 1737 Bay of Bengal 300,000
3. Haiphong Typhoon, Vietnam 1881 West Pacific 300,000
3. Coringa, India 1839 Bay of Bengal 300,000
5. Backerganj Cyclone, Bangladesh 1584 Bay of Bengal 200,000
6. Great Backerganj Cyclone, Bangladesh 1876 Bay of Bengal 200,000
7. Chittagong, Bangladesh 1897 Bay of Bengal 175,000
8. Super Typhoon Nina, China 1975 West Pacific 171,000
9. Cyclone 02B, Bangladesh 1991 Bay of Bengal 140,000
9. Cyclone Nargis, Myanmar 2008 Bay of Bengal 140,000
11. Great Bombay Cyclone, India 1882 Arabian Sea 100,000
12. Hakata Bay Typhoon, Japan 1281 West Pacific 65,000
13. Calcutta, India 1864 Bay of Bengal 60,000
14. Swatlow, China 1922 West Pacific 60,000
15. Barisal, Bangladesh 1822 Bay of Bengal 50,000
15. Sunderbans coast, Bangladesh 1699 Bay of Bengal 50,000
15. India 1833 Bay of Bengal 50,000
15. India 1854 Bay of Bengal 50,000
19. Bengal Cyclone, Calcutta, India 1942 Bay of Bengal 40,000
19. Bangladesh 1912 Bay of Bengal 40,000
19. Bangladesh 1919 Bay of Bengal 40,000
22. Canton, China 1862 West Pacific 37,000
23. Backerganj (Barisal), Bangladesh 1767 Bay of Bengal 30,000
24. Barisal, Bangladesh 1831 Bay of Bengal 22,000
25. Great Hurricane, Lesser Antilles Islands 1780 Atlantic 22,000
26. Devi Taluk, SE India 1977 Bay of Bengal 20,000
26. Great Coringa Cyclone, India 1789 Bay of Bengal 20,000
28. Bangladesh 1965 (11 May) Bay of Bengal 19,279
29. Nagasaki Typhoon, Japan 1828 Western Pacific 15,000
30. Bangladesh


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