Cyclone Phyan

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Cyclonic Storm Phyan[a] developed as a tropical disturbance to the southwest of Colombo in Sri Lanka on November 4, 2009. Over the next couple of days, the disturbance gradually developed before weakening as it made landfall on Southern India on November 7. After the disturbance emerged into the Arabian Sea, it rapidly became more of a concern to the India Meteorological Department (IMD) reporting early on November 9 that the disturbance had intensified into a Depression, and designated it as Depression ARB 03 whilst the Joint Typhoon Warning Center (JTWC) issued a Tropical Cyclone Formation Alert. Later that day, the JTWC designated the system as Cyclone 04A. During the next day, the Depression turned towards the northeast the IMD reported that it had intensified into a Cyclonic Storm and named it as Phyan.

Meteorological history

File:Phyan 2009 track.png
Map plotting the storm's track and intensity, according to the Saffir–Simpson scale
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Map key
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Late on November 4, 2009, the Joint Typhoon Warning Center (JTWC) reported that an area of convection had started to deepen around a poorly organized and elongated low level circulation center about 340 km (210 mi), to the southwest of Colombo in Sri Lanka.[1] The low level circulation center was located in a region of upper level divergence which was providing a good channel for outflow, however it was also located in an area of moderate to high levels of vertical wind shear.[1] During the next couple of days the disturbance gradually developed whilst moving around a subtropical ridge of pressure before the disturbance moved onshore in India during November 7 and became more marked as it moved out into the warm waters of the Arabian Sea during the next day.[2][3][4] Early on November 9, as a Tropical Cyclone Formation Alert was issued by the JTWC; the India Meteorological Department (IMD) reported that the disturbance had become a depression and designated it as Depression ARB 03 as multiple bands of deep convection had started to consolidate around the now well-defined low-level circulation center.[5][6]

Later on November 9, the JTWC reported that the depression had intensified into a tropical cyclone, designating it as 04A, with wind speeds equivalent to a tropical storm as organized deep convection increased around a consolidating low level circulation center.[7] Early the next day the IMD reported that the depression had intensified into a Deep Depression as convection organized further. The IMD further reported later that day that the deep depression had reached its peak windspeeds of 65 km/h (40 mph) 3-min sustained, which made it a Cyclonic storm with it being named as Phyan whilst located about 500 km (310miles) to the southwest of Mumbai as it moved into an area of high vertical wind shear.[8][9] Early on November 11 the JTWC reported that Phyan had reached its peak intensity of 95 km/h (60 mph), before the Cyclone made landfall in Maharashtra between Alibagh and Mumbai later that morning.[10][11] Later that day as the low level circulation center had rapidly detached from the deep convection the JTWC issued their final advisory whilst the IMD reported that Phyan had weakened into a depression before downgrading it to a well marked area of low pressure early on November 12.[12][13][14]

Preparations and impact

Wettest tropical cyclones and their remnants in India
Highest-known totals
Precipitation Storm Location Ref.
Rank mm in
1 2,300 90.55 1968 Severe Cyclonic Storm Pedong, West Bengal [15]
2 1,840 72.44 Severe Cyclonic Storm ARB 01 (2004) Aminidivi, Lakshadweep [16]
3 1,340 52.76 Depression Six (1961) Cherrapunji, Meghalaya [17]
4 1280 50.39 Nisha (2008) Orathanadu, Tamil Nadu [18][19][20]
5 1171 46.10 Phyan (2009) Kethi, Tamil Nadu [21]
6 1030 40.55 Ogni (2006) Avanigadda, Andhra Pradesh [22]
7 953 37.52 1943 Severe Cyclonic Storm Cuddalore, Tamil Nadu [23]
8 910 35.83 Deep Depression Four (1963) Cherrapunji, Meghalaya [24]
9 810 31.89 Cyclone 12 (1959) Bano [25]
10 800 31.50 Cyclone 5 (1968) Harnai [25]

As the IMD upgraded the depression to Cyclonic Storm Phyan, they warned the states of Gujarat and Maharashtra to expect extremely heavy rainfall of over 25 cm, (9.84 inches), over South Gujarat and North Maharashtra whilst squally winds of 70–75 km/h were expected along and off the coasts of Karnataka, Goa and Maharashtra.[9] Fishermen were advised not to venture into the sea along and off these coasts as the sea condition would be very rough.[9]

Massive damage to property was reported in the districts of Ratnagiri, Raigad, Sindhudurg, Thane and Palghar. In Navi Mumbai the 7th one-day international cricket match between India and Australia was abandoned after Cyclone Phyan brought heavy rain to Mumbai.[26][27]

As a tropical disturbance, Phyan caused heavy rainfall in Tamil Nadu. Kethi in Nilgiris district of Tamil Nadu recorded 82 cm of rainfall in 24 hours, beating the previous 24‑hour rainfall record for Tamil Nadu. Kethi recorded 1171 mm of rainfall in 72 hours, making it the 5th wettest cyclone in India.[28]

See also

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Notes

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  1. ^ The name Phyan (Burmese: ဖျံ, [pʰjàɴ]) was contributed by Myanmar and refers to the smooth-coated otter (Lutrogale perspicillata) in Burmese.

References

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  1. ^ a b Template:Cite FTP
  2. ^ Template:Cite FTP
  3. ^ Page Module:Citation/CS1/styles.css has no content."Tropical Weather Outlook 2009-11-08 06z". India Meteorological Department. November 8, 2009. Archived from the original on July 17, 2009. Retrieved November 10, 2009.
  4. ^ Template:Cite FTP
  5. ^ Template:Cite FTP
  6. ^ Page Module:Citation/CS1/styles.css has no content."Special Tropical Weather Outlook for the North Indian Ocean 2009-11-09 12z". India Meteorological Department. November 9, 2009. Retrieved November 10, 2009.{{cite web}}: CS1 maint: deprecated archival service (link)
  7. ^ Template:Cite FTP
  8. ^ Page Module:Citation/CS1/styles.css has no content."Special Tropical Weather Outlook for the Northern Indian Ocean 2009-11-10 03z". India Meteorological Department. November 10, 2009. Archived from the original on October 24, 2008. Retrieved November 11, 2009.
  9. ^ a b c Page Module:Citation/CS1/styles.css has no content."IMD C-wind Advisory 2009-11-10 18z". India Meteorological Department. November 10, 2009. Archived from the original on March 6, 2010. Retrieved November 11, 2009.
  10. ^ Page Module:Citation/CS1/styles.css has no content."JTWC Running Best Track". Joint Typhoon Warning Center. United States Naval Research Laboratory. November 9, 2009. Retrieved November 13, 2009.
  11. ^ Page Module:Citation/CS1/styles.css has no content."IMD Tropical Cyclone Warning 2009-11-11 15z". India Meteorological Department. November 11, 2009. Archived from the original on October 24, 2008. Retrieved November 13, 2009.
  12. ^ Template:Cite FTP
  13. ^ Page Module:Citation/CS1/styles.css has no content."IMD C-Wind Advisory 2009-11-11 18z". India Meteorological Department. November 11, 2009. Archived from the original on October 25, 2008. Retrieved November 13, 2009.
  14. ^ Page Module:Citation/CS1/styles.css has no content."IMD C-Wind Advisory 2009-11-12 00z". India Meteorological Department. November 12, 2009. Archived from the original on October 25, 2008. Retrieved November 13, 2009.
  15. ^ Page Module:Citation/CS1/styles.css has no content."India Weather Review, 1969 Annual Summary Part-C - Storms and Depressions" (PDF). NOAA. Archived from the original (PDF) on March 1, 2017.
  16. ^ Page Module:Citation/CS1/styles.css has no content.Alarming Rise in the Number and Intensity of Extreme Point Rainfall Events over the Indian Region under Climate Change Scenario (PDF) (Report). Indian Institute of Tropical Meteorology. August 2009.
  17. ^ Page Module:Citation/CS1/styles.css has no content.India Meteorological Department (1961). "Annual Summary — Storms & Depressions: Depression in the Bay of Bengal" (PDF). India Weather Review. National Oceanic and Atmospheric Administration: 10–11.
  18. ^ Page Module:Citation/CS1/styles.css has no content.IMD. "IMD Pune Climate Bulletin Nov 2008" (PDF).
  19. ^ Page Module:Citation/CS1/styles.css has no content.The Hindu (November 28, 2008). "Rain-related death toll rises to 51". Archived from the original on January 10, 2009. Retrieved June 8, 2010.
  20. ^ Page Module:Citation/CS1/styles.css has no content.Regional Specialized Meteorological Center New Delhi, India (January 2009). "Report on Cyclonic Disturbances over North Indian Ocean during 2008" (PDF). India Meteorological Department. Archived (PDF) from the original on April 6, 2010. Retrieved January 17, 2013.
  21. ^ Page Module:Citation/CS1/styles.css has no content."Record Rainfall over Ketty Valley, Nilgiri, Tamil Nadu" (PDF). MAUSAM. 63 (1). IMD. January 2012.
  22. ^ Page Module:Citation/CS1/styles.css has no content.M M Nayak (2007). "Cyclone Ogni". Andhra Pradesh Disaster Management. Retrieved June 8, 2010.
  23. ^ Page Module:Citation/CS1/styles.css has no content."India Weather Review, 1943 Annual Summary Part C - Storms and Depressions" (PDF). Government of India Meteorological Department. Archived from the original (PDF) on April 29, 2017.
  24. ^ Page Module:Citation/CS1/styles.css has no content.India Meteorological Department (1963). "Annual Summary — Storms & Depressions: Deep depression in the Bay of Bengal" (PDF). India Weather Review. National Oceanic and Atmospheric Administration: 9–11. Retrieved May 13, 2013.
  25. ^ a b Page Module:Citation/CS1/styles.css has no content.U.S.De, R.K.Dube and G.S.Prakasa Rao (July 2005). "Extreme Weather Events over India in the last 100 years" (PDF). J. Ind. Geophys. Union. 9 (3): 184. Retrieved June 8, 2010.
  26. ^ Page Module:Citation/CS1/styles.css has no content."Phyan aftermath: Search for missing still on, says Chavan". DNA India. November 12, 2009. Archived from the original on November 14, 2009. Retrieved November 13, 2009.
  27. ^ Page Module:Citation/CS1/styles.css has no content."Last ODI washed out". Cricket Australia. November 12, 2009. Archived from the original on March 14, 2011. Retrieved November 13, 2009.
  28. ^ Page Module:Citation/CS1/styles.css has no content.Kulandaivelu, E.; Guhan, M. V. (January 2012). "Record Rainfall over Ketty Valley, Nilgiri, Tamil Nadu" (PDF). MAUSAM. 63 (1): 165–167. Archived from the original (PDF) on April 12, 2013.

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