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IMPACTS OF 2012 HURRICANE SEASON ON TRINIDAD AND TOBAGO.

IMPACTS OF 2012 HURRICANE SEASON ON TRINIDAD AND TOBAGO. Marlon Noel - Director (Ag). Trinidad and Tobago Meteorological Service. DYNAMICS.

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IMPACTS OF 2012 HURRICANE SEASON ON TRINIDAD AND TOBAGO.

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  1. IMPACTS OF 2012 HURRICANE SEASON ON TRINIDAD AND TOBAGO. Marlon Noel - Director (Ag). Trinidad and Tobago Meteorological Service.

  2. DYNAMICS TROPICAL WAVES AND THE INTER-TROPICAL CONVERGENCE ZONE - WITH SUPPORT AT TIMES FROM UPPER-LEVEL TROUGHS, WERE THE MAIN IMPACTS ON T&T WEATHER DURING THE 2012 HURRICANE SEASON.

  3. DYNAMICS • IN THE ABSENCE OF SYNOPTIC-TYPE (SCALE) WEATHER SYSTEMS, LOCAL EFFECTS TOOK OVER. • THIS TOOK THE FORM OF AFTERNOON THUNDERSTORMS WHICH WERE SEA-BREEZE INDUCED OFTEN RESULTING IN SHORT-LIVED FLASH FLOODS EVENTS IN THE CAPITAL CITY. • AUGUST TO OCTOBER WAS THE FAVOURED PERIOD.

  4. 2012 HURRICANE SEASON IMPACTS. • T & T IMPACTED BY ‘ROUTINE’ HURRICANE SEASON TYPE WEATHER SYSTEMS (NON-ROTATING) CAN BE TERMED AS BEING NORMAL. • APART FROM JUNE, MONTHLY RAINFALL ACCUMULATIONS WERE BELOW AVERAGE.

  5. 2012 HURRICANE SEASON IMPACTS. • EXTENSIVE RIVERINE FLOODING – 13th JUNE, RAINFALL ACTIVITY ASSOCIATED WITH THE ITCZ. • ITCZ INDUCED MODERATE TO HEAVY PERSISTENT SHOWERS AFFECTED T&T FROM 10th – 13th OCTOBER • 147.2 MM MEASURED AT PIARCO, TRINIDAD. LONG TERM AVERAGE FOR JUNE – 252.1 MM.

  6. 2012 HURRICANE SEASON IMPACTS. • 11th AUGUST - DISASTROUS FLOODING/LANDSLIDE EVENT IN NW AREAS OF TRINIDAD VIZ. DIEGO MARTIN AND MARAVAL • ACTIVE ITCZ MODULATED BY TD#7 WHICH LATER DEGENERATED INTO A TW. • Two (2) Deaths - Solomon Britto of Richplain and Everald Bentham, of Upper La Puerta, were both killed when they were caught in their homes by raging floodwaters, laden with sediment. • DAMAGES EXCEEDED 200 MILLION TT DOLLARS.

  7. FLOODING – 11TH AUGUST IN DEIGO MARTIN.

  8. LANDSLIDE – 11TH AUGUST IN DEIGO MARTIN.

  9. FLOODING – 11TH AUGUST IN DEIGO MARTIN.

  10. 2012 HURRICANE SEASON IMPACTS. • EXTENSIVE STREET/FLASH & RIVERINE FLOODING – 23rd AUGUST. RAINFALL ACTIVITY ASSOCIATED WITH FEEDER BAND ACTIVITY FROM TS ISSAC. • WIDESPREAD SHOWERS/THUNDERSHOWERS ASSOC WITH ITCZ AND PASSAGE OF TWs PRODUCED FLASH FLOODING ON 23rd AND 30th SEPTEMBER.

  11. FLOODING AT CITY GATE, PORT OF SPAIN – 23RD AUGUST.

  12. 2012 HURRICANE SEASON IMPACTS. • RAINBANDS ASSOCIATED WITH TROPICAL STORM RAPHAEL PRODUCED WIDESPREAD RAINFALL AND FLOODING IN SOME AREAS 12th – 14th OCTOBER. • RAINFALL MEASURED AT PIARCO, TRINIDAD OVER 12th – 14th : 52.3 MM. • Widespread Flooding in Port of Spain – 08th November 2012 – ITCZ induced Rainfall.

  13. Flooding in Port of Spain – 08th November 2012.

  14. 2012 HURRICANE SEASON IMPACTS. • APART FROM DISASTROUS FLOODING/LANDSLIDE EVENT ON 11th AUGUST, THERE WERE NO MAJOR IMPACTS. • OTHER IMPACTS WERE CONSIDERED TYPICAL OR NORMAL DURING A HURRICANE SEASON.

  15. 2012 HURRICANE SEASON IMPACTS.BULLETINS/ADVISORIES/WARNINGS ISSUED BY THE TTMS. • 55 General Information Bulletins. • 5 ITCZ Events. • 8 Tropical Wave Passage. • 5 Flood Events (Includes Riverine Flooding). • 7 Information Bulletins (Info Only) on TS’s. • 7 Information Bulletins (Info Only) on TD’s. • 9 Daytime Heating/Showers events.

  16. FLOODING AT CITY GATE, PORT OF SPAIN – 23RD AUGUST.

  17. Thank You.

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