Weather Forecast (Next 24 Hours)
As of 12:00 PM Thursday 25th July 2019, mostly clear to partly cloudy skies are occurring across Trinidad and Tobago. During the afternoon, a few showers and possible thunderstorms may develop, favoring Western Trinidad and into the Gulf of Paria. An increase in showers are forecast during the later afternoon through the evening into tonight as the hind leg of Tropical Wave 27 moves across the island, bringing cloudiness, isolated to scattered showers and the possible thunderstorm. Conditions are forecast to become more settled on Friday as a surge of Saharan Dust is forecast to move across the Eastern Caribbean.
As the axis of Tropical Wave 27 moved across Trinidad and Tobago overnight without much activity across the Southern Windwards. Across the Leewards, much welcome rainfall has been occurring as isolated to scattered showers and isolated thunderstorms have been persisting, now moving across the French Antilles.
Across Trinidad and Tobago, mostly hot and sunny conditions are forecast for much of the islands through the afternoon. By the later afternoon/evening (4:00 PM – 7:00 PM), shallow low-level moisture and instability will allow for partly cloudy to cloudy skies with some light to moderate isolated to scattered showers to occur. There is also the chance that few of these showers may become heavy and develop into a thunderstorm.
These showers will be brisk tonight, mostly subsiding by midnight, leading to a dusty, hazy and mostly settled Friday.
Winds are generally forecast between 15-25 KM/H by the late afternoon, with gusts up to 40 KM/H at times. Saharan dust is present in mild to minimal concentrations across Trinidad and Tobago, with peak concentrations occurring on Friday.
Last night’s minimum temperatures were 24°C at Piarco, Trinidad, and 26°C at Crown Point, Tobago. Tonight’s minimum temperatures are forecast to be near 25°C at Piarco, Trinidad, and 26°C at Crown Point, Tobago.
Today’s maximum high temperatures across T&T is forecast to be near 33°C at Piarco, Trinidad and 32°C at Crown Point, Tobago. Heat indices may top at 42°C across Trinidad and 36°C across Tobago. The heat index is an index that combines air temperature and relative humidity, generating a “feel’s like” temperature.
Seas are forecast to remain slight in open waters through the weekend. Waves in open waters are forecast up to 1.5 meters, particularly East of Trinidad and Tobago over the 3 days. In sheltered areas, seas to remain near calm through the weekend with winds at 10-15 knots from the east to northeast.
Increase in Dust Concentrations Forecast Over Next 24 Hours
Saharan Dust: As of 12:00 PM Thursday 25th July 2019, Saharan Dust concentrations are mild to minimal across Trinidad and Tobago, with another mild surge forecast overnight into Friday. Air quality remains between good to moderate levels.
Tropical Weather Update:
— Tropical Wave 27: This tropical wave is now west of Trinidad and Tobago. No significant rainfall is forecast, but we can expect isolated to scattered showers and isolated thunderstorms. A mild surge of dust is forecast following the passage of this wave. (Updated from below post)
— Tropical Wave 28: This tropical wave has been dropped from the National Hurricane Center’s surface analysis as the wave has merged with Tropical Wave 27 to its west.
— Tropical Wave 29: This tropical wave is forecast to begin affecting Trinidad and Tobago on Saturday through Monday. The heaviest activity, based on the latest model guidance, is forecast on Saturday across Trinidad and Sunday across Tobago. Periods of showers, some becoming heavy, as well as rain and thunderstorms are in the forecast. Severe weather is possible. Street/Flash Flooding, gusty winds may occur.
— Gulf of Mexico Area of Interest: The National Hurricane Center is monitoring a weak area of non-tropical low-pressure in the Gulf of Mexico. Low chances of development.