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

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.

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.

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.

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

2012 HURRICANE SEASON IMPACTS. 11 th AUGUST - DISASTROUS FLOODING/LANDSLIDE EVENT IN NW AREAS OF TRINIDAD VIZ. DIEGO MARTIN AND MARAVAL 11 th 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. 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. 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. DAMAGES EXCEEDED 200 MILLION TT DOLLARS.

FLOODING – 11 TH AUGUST IN DEIGO MARTIN.

LANDSLIDE – 11 TH AUGUST IN DEIGO MARTIN.

FLOODING – 11 TH AUGUST IN DEIGO MARTIN.

2012 HURRICANE SEASON IMPACTS. EXTENSIVE STREET/FLASH & RIVERINE FLOODING – 23 rd 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 30 th SEPTEMBER. WIDESPREAD SHOWERS/THUNDERSHOWERS ASSOC WITH ITCZ AND PASSAGE OF TWs PRODUCED FLASH FLOODING ON 23rd AND 30 th SEPTEMBER.

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

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

Flooding in Port of Spain – 08 th November 2012.

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

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

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

Thank You.