May is likely to be the driest month of the three month period May, June, July (MJJ) with daytime and nighttime temperatures forecast to be slightly warmer than normal over Trinidad and Tobago.
The Meteorological Service (Met Office) in its Rainfall and Temperature Outlook for the three-month period predicted a 75 percent chance that maximum temperatures will surpass 32.5 oC for Trinidad and 31.3 oC for Tobago in May.
Nighttime temperatures are expected to be warmer than the average 23.9 oC for both Trinidad and Tobago for May as well.
The best chance for rainfall totals are between 35 mm and 180 mm in Trinidad and between 38 mm and 130 mm in Tobago.
For the month of June, there’s a moderate chance (60 percent) for the occurrence of maximum temperatures warmer than 32 oC in Trinidad, and 31 oC in Tobago.
The Met Office says the rainfall pattern is most likely due to near average sea surface temperatures (SSTs) in and around Trinidad and Tobago due to recent cooling El Nino-Southern Oscillation (ENSO) neutral conditions, but on the warm side in the equatorial eastern and central Pacific Ocean.
Likely impacts of this rainfall pattern include the potential for severe flooding and increase in surface water ponding, which can lead to increase in mosquito breeding sites.
The Met Office adds that drier than normal to near normal rainfall usually maintains or reduces water reservoir levels, or decreases surface water flows and water availability.
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