Forecast: Mostly Sunny Conditions Across T&T Over Next Five Days

A high-pressure system with pockets of low-level moisture is forecast to affect Trinidad and Tobago through the middle of next week. Here is what you need to know:

— Through next Wednesday, a relatively dry and stable atmosphere is forecast to prevail across the region. With pockets of moisture and low-level cloud patches, brisk showers are still possible across the country, but no significant rainfall is expected.
— Generally, no major hazards are expected. No surges of Saharan Dust are expected.
— Sustained winds up to 30 KM/H with wind gusts up to 45 KM/H accompanying showers are possible.
— Seas are forecast to be moderate, with waves between 1.5 to 2.5 meters and less than 1.0 meter in sheltered areas.
— Temperatures will be seasonal for this time of year, with maximum highs near 31°C and minimum lows near 23°C.
— There are no alerts, watches, or warnings in effect for Trinidad and Tobago from the Trinidad and Tobago Meteorological Service at this time.

The Forecast

High atmospheric moisture moving away from Trinidad and Tobago. (SSEC/CIMSS/UW-Madison)
High atmospheric moisture moving away from Trinidad and Tobago. (SSEC/CIMSS/UW-Madison)

Generally, any heavier showers will favor eastern areas of Trinidad and Tobago through the forecast period.

Friday night: Variably cloudy skies with brief showers to continue across the country. Higher gusts are possible ahead of showers.

Saturday (Christmas Day): After midnight through the afternoon, brisk showers are forecast to interrupt partly cloudy skies, with mostly sunny conditions by the late afternoon. A mostly settled and clear night is expected.

Sunday (Boxing Day): Mostly sunny and breezy, with one or two brisk showers possible. A mostly settled and clear night is forecast.

Monday: Mostly sunny, warm, and breezy. The odd brisk shower is possible.

Tuesday: Mostly sunny, warm, and breezy. The odd brisk shower is possible.

Wednesday: Mostly sunny, warm, and breezy. The odd brisk shower is possible.

Increasing atmospheric moisture is forecast to return by Thursday, fuelling showers across the country.

Patchy cloudiness east of Trinidad and Tobago on Friday evening. (Weathernerds.org)
Patchy cloudiness east of Trinidad and Tobago on Friday evening. (Weathernerds.org)

Marine: Seas are forecast to gradually settle through the next five days. In open waters, waves are forecast to be between 2.0 meters to 2.5 meters, subsiding to 1.5 to 2.0 meters by Monday. Seas are forecast to be below 1.0 meter in sheltered areas.

Temperatures

Through the forecast period, the minimum low in Trinidad and Tobago is forecast to be between 22.0°C and 24.0°C.

Maximum highs across the country are forecast to be generally up to 31.0°C in Trinidad and Tobago. However, with increased cloud cover, maximum highs are forecast to be relatively cooler.

In urbanized areas like Port of Spain, Scarborough, San Fernando, and Chaguanas, the maximum high temperatures could exceed 32.0°C.

Forecast Impacts

No significant rainfall or inclement weather impacts are anticipated through the next five days. Maximum daily rainfall accumulations are forecast to be less than 5 millimeters across the country and up to 10 millimeters possible, favoring eastern Trinidad in heavier showers.

Why I May Not/Will Not See Rainfall?

A frequent complaint is the forecast is wrong because I didn’t experience any rainfall. Scattered showers mean that you, individually, may experience some showers intermittently throughout the day, and there is a higher chance for this activity than isolated activity. Widespread showers mean that nearly all persons and areas may experience rainfall.

Isolated rainfall is forecast through the next five days.

Forecast - Isolated, Scattered, Widespread - What do they mean?

Forecast Discussion

A view of the Atlantic on Friday evening at 7:30 PM.
A view of the Atlantic on Friday at 7:30 PM.

Tropical Waves: There are no tropical waves in the Atlantic Basin.

Over the next 12-18 hours, lingering moisture and instability will move west, still causing brisk showers and partly to mostly cloudy skies.

A mostly dry and stable atmosphere is forecast to move in by Saturday afternoon through Wednesday and limit shower chances. Additionally, strong westerly wind shear will remain with overall higher rainfall limited to southern and eastern coastal areas. As a result of this shear, upper-level clouds from South America may move across T&T at times.

From Thursday, moisture is forecast to return across the region, increasing rainfall chances.

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