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International Workshop on Asian Monsoon Year (AMY08)

International Workshop on Asian Monsoon Year (AMY08). Extreme Weather Event: A Case Report Of 2006/2007 Severe Floods In Johore, Malaysia LING LEONG KWOK MALAYSIAN METEOROLOGICAL DEPARTMENT. Extreme Weather Events. Extreme rainfall event is getting more frequent in Malaysia

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International Workshop on Asian Monsoon Year (AMY08)

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  1. International Workshop on Asian Monsoon Year (AMY08) Extreme Weather Event: A Case Report Of 2006/2007 Severe Floods In Johore, Malaysia LING LEONG KWOK MALAYSIAN METEOROLOGICAL DEPARTMENT

  2. Extreme Weather Events • Extreme rainfall event is getting more frequent in Malaysia • 11 to 14 January 2007 • Heavy Rainfall Caused Floods In Johore and South of Pahang • 7 to 13 January 2007 • Heavy Rainfall Caused Floods In Pitas, Kota Marudu, Beaufort and Sandakan, Sabah • 6 to 8 January 2007 • Heavy Rainfall Caused Floods In Kelantan and Terengganu • 28 to 31 December 2006 • Heavy Rainfall Caused Floods At Kota Marudu, Sabah • 17 to 20 December 2006 • Heavy Rainfall Caused Floods In Johore, Pahang, Negeri Sembilan and Malacca • 6 December 2006 • Severe Thunderstorms and Heavy Rainfall In Ipoh, Perak

  3. Malaysia Map

  4. Extreme Weather Events • 10 May 2006 • Strong Winds and Heavy Rainfall In Kuala Lumpur and Selangor • 18 April 2006 • Flash Floods and Heavy Rainfall In Johore Baru, Johore • 6 April 2006 • Flash Floods and Heavy Rainfall At Old Klang Road, Kuala Lumpur • 14 to 17 December 2005 • Heavy Rainfall Caused Floods In Perlis, Kedah, Kelantan and Terengganu • 8 to 12 December 2004 • Heavy Rainfall Caused Floods In Kelantan, Terengganu and Pahang

  5. Number of Flood Evacuees50,000+

  6. Extreme Event: 17/12/2006 – 20/12/2006 1 • 24-hour Accumulated Station Rainfall Distribution (mm) 2 • 3 • 5 • 4 •

  7. Extreme Event: 11/01/2007 – 14/01/2007 1 • 24-hour Accumulated Station Rainfall Distribution (mm) 2 • 3 • 5 • 4 •

  8. Southeast Asia Monsoon System Changed • Due to natural variability • Other likely factors: • El Nino – Southern Oscillation • Indian Ocean Dipole • Madden-Julian Oscillation • Global Warming • Understanding is incomplete for weather forecaster operational application • Further investigation is needed

  9. 500hPa Geopotential Height and Mean Sea Level Pressure Cold Air Burst between 16/12/2006 and 17/12/2007

  10. 850hPa Wind

  11. Radar Echoes: 16/12/2006 – 20/12/2006 171206 00UTC 161206 12UTC 171206 12UTC 181206 00UTC 181206 06UTC 181206 12UTC 191206 00UTC 191206 12UTC 201206 00UTC 201206 06UTC 201206 12UTC 211206 00UTC

  12. MTSAT Imagery: 17/12/2006 – 20/12/2006 171206 0030UTC 171206 1230UTC 181206 0030UTC 181206 1230UTC 191206 0030UTC 191206 1230UTC 211206 0030UTC 201206 0030UTC 201206 1230UTC

  13. MMD Radar Coverage

  14. MMD Upper Sonde Stations SULU SEA SOUTH CHINA SEA PENINSULAR MALAYSIA

  15. Thank You

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