Forecast: Mostly Sunny Skies Expected Today. Saharan Dust, Moderate Seas Through the Weekend

An Atlantic high-pressure system is expected to remain the dominant weather feature across the Eastern Caribbean through the weekend. While some isolated showers are possible, due to surface to low level confluence along the southern periphery of this feature, these showers will generally be fairly brief, interrupting settled conditions.

This high-pressure system, due to a tight pressure gradient, is producing breezy conditions across the Eastern Caribbean, with winds between 15-30 KM/H and gusts to 50 KM/H.

These breezy conditions are also generating moderate seas and will continue to do so through Sunday. Waves in open waters will be up to 2.5 meters through Sunday and less than 1.0 meters in sheltered areas. Long period swells are occurring, which do present a marine and coastal hazard to mariners and sea bathers. Small craft operators, sea bathers and other persons with marine interests should exercise caution.

Temperatures are expected to be fairly mild through the next 3 days, with highs between 30-31°C across both islands, with lows in Trinidad near 22-23°C and 23-24°C in Tobago. Note that cooler temperatures are possible across interior parts of Trinidad, as well as in mountainous areas.

No significant rainfall is expected over the next 5 days as meteorological drought conditions intensify. Generally, less than 10 millimeters of rainfall is possible, favoring Northeastern Trinidad through the next 5 days, with less than 5 millimeters elsewhere.

Saharan Dust Forecast over the next 5 days

Mild concentrations of Saharan Dust will be present in the atmosphere over the next 3 days, reducing air quality levels to moderate at times. Another plume of concentrated dust is expected to arrive on Saturday, reducing air quality levels to unhealthy for sensitive groups. Saharan dust combined with already reduced air quality due to the prevalence of bush fires can further reduce air quality to unhealthy levels.

EPA Air Quality Index Risk Levels
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