Met Office: The 2019 rainy season has started

The Trinidad and Tobago Meteorological Service is officially declaring the start of the 2019 Rainy Season following rainfall activity from the passage of a Tropical Wave.

Once the initial episode of rainfall activity is triggered by the ITCZ or a Tropical Wave, it signals the start of the country’s rainy season since these features will be the mainstay for the next six (6) months in yielding rainfall.

The Trinidad and Tobago Meteorological Service has been tracking the progress of this Tropical Wave across the Atlantic Ocean for the past few days.

The moist and unstable environment accompanying the Wave produced the much welcomed early season rainfall. Over the 12-hour period beginning at 8:00 am (Tuesday 28th May 2019), the Trinidad and Tobago Meteorological Service recorded 16.1 millimeters of rainfall at El Reposo Automatic Weather Station, Trinidad with higher rainfall accumulations occurring in other localities. Moist conditions are expected to continue for at least the next 24-36 hours. An overall near normal wet season is forecasted.

The start of the wet season, June to August, is likely to receive less rainfall than usual. Concerns for flooding still exist since June to August is usually the wettest months of the season. September to November is likely to receive more rainfall than usual with the potential for flooding being elevated.

The Trinidad and Tobago Meteorological Service wishes to reassure the national community, that in keeping with our mandate, we continue to closely monitor weather conditions around Trinidad and Tobago and will continue to advise the general public in a timely manner, about impending adverse weather conditions which are likely to affect our islands. The public, relevant agencies and ministries are advised to adopt measures to mitigate the potential impacts of the Rainy Season.

Visit our website for daily weather forecasts updates, which are available on a scheduled basis at 6 am, 10 am, and 4 pm and for the seasonal outlook which is updated monthly. These are made available on the TTMS’s website at, on our social media platforms and weather App

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