Low-level winds remain relatively low over the next five to seven days, resulting in near-calm seas in sheltered areas while seas in open waters remain slight, occasionally reaching moderate levels. In heavy showers and thunderstorms, seas can get occasionally choppy, particularly on Wednesday and Thursday, August 9th and 10th, 2023.
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TTMS Issues Adverse Weather Alert For T&T
Trinidad and Tobago is NOT under any tropical storm or hurricane threat, watch, or warning at this time.
Seas Forecast For Trinidad and Tobago
On Wednesday through Thursday, winds are forecast to be predominantly from the south to southeast. On Wednesday, wind speeds are forecast to be fairly light, between 0 and 10 knots. Seas in open waters are forecast to be generally slight, occasionally moderate in eastern coastal areas with waves ranging between 1 and 1.5 meters, while in sheltered areas, near calm conditions are forecast. On Thursday, following the passage of Tropical Wave 32, winds can reach as high as 20 knots, with gusts exceeding 35 knots possible in thunderstorms. As a result, slight to moderate seas are still forecast, but the threat of occasionally rough or choppy seas exists, particularly in eastern coastal waters. Additionally, with southerly to southeasterly winds, afternoon through evening thunderstorms from northeastern Venezuela could drift northward toward Trinidad, creating choppy seas in the Gulf of Paria and larger than usual waves along the Gulf of Paria coastlines.
On Friday through Saturday, winds vary between 10 to 15 knots, generally from the east-southeast to the east-northeast. Seas during this period are forecast to remain slight to moderate in open waters with waves up to 1.5 meters and near calm in sheltered areas.
By Saturday night through Sunday night, winds pick up between 15 to 20 knots from the east-southeast to the east-northeast, but seas remain the same as before, with waves in open waters up to 1.5 meters while in sheltered areas, near calm seas are forecast.
From Monday through next week, while slight to moderate seas are forecast, seas are expected to be on the calmer side due to lighter winds, ranging from 5 to 10 knots, occasionally reaching 15 knots at times, with gusts in passing showers or the odd thunderstorm reaching as high as 20 knots.
Through the next seven days, no significant long-period swells are expected, with swell periods forecast to remain between six and eleven seconds. However, spring tides are expected to begin toward the end of the forecast period.
Possible Impacts
Saharan Dust concentrations are forecast to increase, particularly from August 14th, across T&T and remain at elevated levels and fluctuating levels through the forecast period.
On Wednesday, August 9th, and Thursday, August 10th, 2023, mariners will need to pay close attention to both marine and weather conditions due to an atypical wind regime that can produce potentially hazardous conditions in usually calm areas.
Additionally, higher-than-usual high tides and lower-than-usual low tides are forecast from August 14th. Mariners will need to exercise caution, particularly during the high tide periods, and beachgoers will need to exercise caution due to an elevated rip current threat.
