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The Impact of the 2009 Hurricane Season on Trinidad and Tobago. By Emmanuel Moolchan Director Trinidad and Tobago Meteorological Service. 2009 HURRICANE SEASON. NO DIRECT TROPICAL STORM IMPACT RAINFALL DEFICIT BAR JULY AND AUGUST
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The Impact of the 2009 Hurricane Season on Trinidad and Tobago By Emmanuel Moolchan Director Trinidad and Tobago Meteorological Service
2009 HURRICANE SEASON • NO DIRECT TROPICAL STORM IMPACT • RAINFALL DEFICIT BAR JULY AND AUGUST • SUBTLE CHANGES IN RAINFALL PATTERN – FREQUENT FLASH FLOODS • TORNADO SIGHTINGS
2009 HURRICANE SEASON • June rainfall – 113.3mm (252.1) – 55% • July rainfall – 324.1mm (266.3) +22% • August rainfall – 336.3mm (250.1) + 34% • September rainfall – 113.5mm (202.5) -44% • October rainfall – 122.9mm (199.3) – 38% • November rainfall – 192.7mm (226.7) - 15%
Radar imagery (MAX) showing reflectivity in the 65-70 dbz range at 1:45 pm on 09 August, 2009.
FLASH FLOODING 10th August • The thunderstorm activity on 10th August • 56.4km/hr measured gust (downdraft) • 55.6 millimeters rainfall event
HIGHEST RECORDED TEMP AUGUST • The highest maximum temperature of 34.7°C occurred on the 19 August, 2009, • Secondary maximum in daily maximum temperature (34.3°C) occurred on 10 August, 2009
22nd AUGUST • Crown Point Tobago recorded a gust (downdraft) of 72km/hr and 11.5 millimeters of rainfall • Piarco recorded its second most vigorous thunderstorm day with gust speeds of 50km/hr and rainfall records of 68.4 millimeters.
Satellite Imagery showing Hurricane Bill near Leewards Islands on 19th August 2009.
THE END. QUESTIONS?