Forecast: Hot, Sunny Conditions Today. Saharan Dust Returns Next Week

Weather Forecast

As of 9:00AM Monday 8th April 2019, mostly sunny skies have returned to Trinidad and Tobago, with upper level cirrus clouds moving across the area. By the late morning, some low-level cloud patches is forecast to bring some brief cloudy periods, mainly across Tobago.

Mostly settled conditions are forecast over the next 24 hours with a clear night ahead.

These conditions are to remain in place for the remainder of the week, as a surface to mid-level high pressure system remains dominant across the Eastern Caribbean.

Mostly settled conditions are forecast by the late evening into nightfall as the surface to mid-level high pressure system remains dominant across the Eastern Caribbean. However, a series of low-level pluses may bring some brief showery activity and cloudy skies throughout the week, favoring the Windward Islands, including Trinidad and Tobago.

Due to a tightened pressure gradient, breezy conditions are to persist across the region. Across Trinidad and Tobago, winds are forecast to be up to 50 KM/H.

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Temperatures

Minimum low temperatures across Trinidad and Tobago over the next 3 days are forecast to range between 22°C-24°C, with temperatures at the upper end of the minimum low temperature range favoring Tobago. Low temperatures are likely to be lower across inland and mountainous areas. Last nights’ minimum temperatures were 22.3°C at Piarco, Trinidad and 23.7°C at Crown Point, Tobago.

Maximum high temperatures across T&T today, Monday, are forecast to be hot, near 33°C at Piarco, Trinidad and a heat index of 37°C . Across Tobago, maximum high temperatures are forecast to near 32°C with a heat index of 35°C. The heat index is an index that combines air temperature and relative humidity, generating a “feel’s like” temperature.

Seas

Seas are forecast to remain moderate in open waters through the week. Waves in open waters are forecast to remain up to 2.0 meters particularly East of Trinidad and Tobago. In sheltered areas, seas are forecast to remain smooth, below 1.0 meters. Winds are forecast to be from the northeast to east at 15-20 knots.

Saharan Dust To Return by Beginning of Next Week

Dust concentrations remain at negligible levels across the Southern and Eastern Caribbean. In fact, most places across the Eastern Caribbean are presently experiencing good air quality. Air quality is forecast to remain at good levels for the next 5-6 days. Areas in the immediate vicinity of bushfires may experience moderate air quality.

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EPA Air Quality Index Risk Levels

At moderate air quality levels, unusually sensitive groups should consider reducing prolonged or heavy exertion.

Long range dust models aren’t indicating any major intrusions of Saharan Dust over the next 5 days. However, over the longer range, models are indicating the return of Saharan dust by late Friday 12th April 2019. It is too soon to forecast air quality levels.


00Z April 8th 2019 NASA GEOS-5 Dust Model, no Saharan dust concentrations across the Eastern Caribbean over the next several days. Credit: Weatherbell

The Trinidad and Tobago Meteorological Service has indicated that “moderate to thick concentrations of Saharan dust are expected to affect Trinidad and Tobago and the Lesser Antilles from late Friday (12th) into the weekend.”

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