Tropical cyclones and tornadoes in Pakistan

Cyclone 2A making landfall near Karachi at peak intensity as Category-3 Hurricane in May 1999

The tropical cyclones and tornadoes in Pakistan include the deadliest cyclone to hit the country and the deadliest tornado to struck the country. Pakistan lies in the temperate zone. The climate is generally arid, characterized by the extreme south western part of the country where Gwadar is the main port city. Though cyclones are rare in the Arabian sea which is a part of North Indian Ocean, cyclones that form in this sea mostly move towards Gujarat rather than Pakistan.[1] Cyclones in the Arabian sea form mostly from May till June and then from September till October, monsoon season plays a vital role for the formation of cyclone in this basin. Tropical storms that hit Pakistan are mostly remnants by the time reach Pakistan or make landfall in south eastern Sindh which is not very much populated they rarely move towards the Balochistan coast.

History of Cyclones in Pakistan

Cyclone Phet making second landfall near Karachi on 6 June 2010

Pakistan has a 1,046-kilometre (650 mi) coastline along the Arabian Sea[2] and the Gulf of Oman in the extreme south western part of the country where Gwadar is the main port city. Though cyclones are rare in the Arabian sea which is a part of North Indian Ocean, cyclones that form in this sea mostly move towards Indian state of Gujarat rather than Pakistan.[1] Cyclones in the Arabian sea form mostly from May till June and then from September till October, monsoon season plays a vital role for the formation of cyclone in this basin.[3]

Each year before the onset of monsoon that is 15 April to 15 July and also after its withdrawal that is 15 September to 15 December, there is always a distinct possibility of the cyclonic storm to develop in the north Arabian Sea.[4] There is a 98 per cent chance of cyclones to turn towards the Indian state of Gujarat, one per cent chance of moving towards the Gulf and one per cent chance of moving towards the Pakistani coast.[5]

Deadliest tropical cyclones

Cyclones that effect Pakistan lose much of their intensity by the time they reach country's coastline. Following are the deadliest cyclones in Pakistan's history, these cyclones caused fatalities greater than 100.

1964 Indus valley cyclone

It made landfall in Tharparkar and Hyderabad district in Sindh province in Pakistan on 12 June.[4][6] However it caused a great loss of life and property in the province.[4] It killed 450 people and left some 400,000 people homeless.[7]

1965 Karachi cyclone

Not much is known about this cyclone but it is the deadliest tropical storm in the history of Pakistan as it caused 10,000 casualties in Karachi on 15 December.[8]

1993 Pak-Indo cyclone

A category 1 hurricane, it weakened over the sea near Sindh-Gujarat border due to high wind shear. However it caused massive rainfall and flooding in Karachi but Thatta and Badin districts were the worst affected where the cyclone killed 609 people and displaced some 200,000 others.[7][9]

1999 Pakistan cyclone

This cyclone is the strongest and most intense cyclone in the history of Pakistan. A category 3 hurricane, it killed 6200 people in the country and made landfall in Keti Bandar at peak intensity on 20 May near Karachi city in Sindh province. At least $1 million in relief funds was to be supplied by the government.[10]

Cyclone Yemyin (2007)

Cyclone Yemyin was a mere tropical storm that developed over the Bay of Bengal as a tropical depression and intensified into a cyclone over the Arabian Sea. It killed 200 people alone in Karachi city on 23 June due to heavy rainfall and intense windstorms as it was moving towards Balochistan province.[11] It made landfall near the towns of Ormara and Pasni in the Balochistan province on 26 June where it killed 300 people.[12] Overall it killed 730 people and affected the lives of 2 million people in Pakistan making it the third deadliest cyclone in the history of the country.[13]

Wettest tropical cyclone of Pakistan

Wettest tropical cyclones/depressions in Pakistan
Highest known recorded totals
Precipitation Storm Measurement
station
Rank (mm) (in)
1 370 mm 14.57 inches Phet (2010) Gwadar[14]
2 285  mm 11.22  inches Cyclone (1999) Keti Bandar[15]
3 245 mm 9.64 inches BOB (2009) Karachi[16][17][18]
4 191 mm 7.51 inches BOB 06 (2007) Karachi[19][20][21]
5 145 mm 5.71 inches Onil (2004) Thatta[22]
6 110 mm 3.94 inches Yemyin (2007) Karachi
7 43 mm 1.69 inches BOB 04 (2007) Karachi[23][24]
8 18 mm 0.70 inches BOB 03 (2009) Karachi[25]

List of cyclones that affected the Pakistani coastline

Cyclone Yemyin making landfall in Balochistan province on 26 June 2007

Cyclones mostly hit the Sindh coast than the Balochistan coast in Pakistan. During the last 100 years a number of cyclonic storms have struck Pakistan's costal areas. The years involved were 1895, 1902, 1907, 1944, 1948, 1964, 1985, 1999, 2007 and 2010. Other cyclones that are listed below caused rains as remnants.[4]

Tropical Cyclone warning centre

There is only one tropical cyclone warning centre in Pakistan, which is in Karachi in Sindh province.[34]

Tornadoes in Pakistan

Tornadoes have been reported almost all over the Indian subcontinent with most in Bangladesh and eastern India.[35] However, dust devils are common in Pakistan, particularly in the northern and central parts of the country. Tornadoes are highly uncommon in Pakistan, where they mostly occur in March and April when a Western Disturbance starts effecting the northern parts of the country.[36] It is also speculated that cycles of tornado years may be correlated to the periods of reduced tropical cyclone activity[37] Following is a list of tornadoes which struck the country.

See also

References

  1. 1 2 http://www.imd.gov.in/section/nhac/static/cyclone-history-as.htm
  2. http://www.indexmundi.com/pakistan/coastline.html
  3. http://www.associatepublisher.com/e/t/tr/tropical_cyclone.htm
  4. 1 2 3 4 5 6 7 8 http://indianweatherman.blogspot.com/2010/06/cyclone-history-for-karachi.html
  5. http://www.reliefweb.int/rw/rwb.nsf/db900sid/MYAI-86495X?OpenDocument
  6. 1 2 http://www.wxp.unisys.com/hurricane/n_indian/1964/index.html
  7. 1 2 3 4 5 6 http://www.ndma.gov.pk/Publications/livingwithdisasters.pdf
  8. http://www.wunderground.com/blog/JeffMasters/comment.html?entrynum=1498
  9. http://arabnews.com/world/article60813.ece
  10. https://news.google.com/newspapers?id=-zgcAAAAIBAJ&sjid=tFkEAAAAIBAJ&dq=pakistan%20cyclone&pg=5489%2C512207
  11. "Storms in Karachi kill 200 people". BBC News. 24 June 2007.
  12. http://www.webcitation.org/5PsfixNqs
  13. http://www.emdat.be/disaster-list
  14. http://www.centralasiaonline.com/cocoon/caii/xhtml/en_GB/newsbriefs/caii/newsbriefs/2010/06/04/newsbrief-04
  15. http://www.heatisonline.org/contentserver/objecthandlers/index.cfm?id=3330&method=full
  16. http://www.pakmet.com.pk/FFD/cp/fr2009.pdf
  17. http://www.wunderground.com/history/airport/OPKC/2009/7/17/DailyHistory.html
  18. http://hamariweb.com/myreport/report.aspx?id=199
  19. http://www.accuweather.com/world-news-blogs.asp?blog=andrews&partner=accuweather&pgUrl=/mtweb/content/andrews/archives/2007/08/will_the_arabia.asp
  20. http://www.webcitation.org/5QwDsh3rS
  21. http://www.dawn.com/2007/08/12/local1.htm
  22. http://archives.dawn.com/dawnftp/72.249.57.55/dawnftp/fixed/arch/arch_2004/arch_oct_04.htm
  23. http://www.webcitation.org/5Q0T8juTq
  24. http://www.dawn.com/2007/07/01/local2.htm
  25. http://news.dawn.com/wps/wcm/connect/dawn-content-library/dawn/the-newspaper/local/karachi-heavy-rains-forecast-579
  26. http://www.wxp.unisys.com/hurricane/n_indian/1948/index.html
  27. Emergency Disaster Management, Inc. (2003-07-02). "Cyclone". Retrieved 2010-04-15.
  28. http://www.wxp.unisys.com/hurricane/n_indian/1985/index.html
  29. http://www.woeurope.eu/cgi-app/reports?ARCHIV=1&LANG=eu&MENU=207&FILE=b1.txt&DAY=20070607&JJA=2007&MMA=06&TTA=08
  30. http://archives.dawn.com/2007/06/06/local16.htm
  31. http://videosfromindia.smashits.com/view/10962/rescued-pak-teenagers-of-phyan-cyclone-seek-early-repatriation&page=1&viewtype=&category=mr
  32. http://www.pakmet.com.pk/Pakistan%20Weather%20outlook/WxReportDaily.html
  33. http://dawnnews.tv/wps/wcm/connect/dawn-content-library/dawn/the-newspaper/local/gusty-winds-lash-city-010
  34. http://www.pakmet.com.pk/
  35. 1 2 http://www.sky-fire.tv/index.cgi/tornadoes.html
  36. 1 2 http://www.angelfire.com/az3/azt_articles/wtrphenomena/chak_misran.html
  37. http://www.springerlink.com/content/252m78qj82042665/
  38. http://www.scribd.com/doc/45609806/Tornadoes-in-Pakistan
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