What you need to know
— What: Tropical Wave 27 and the Intertropical Convergence Zone (ITCZ) are forecast to bring isolated to scattered showers and thunderstorms, particularly across Trinidad. A surge in low-level winds is also forecast across T&T today, lingering through Sunday.
— Where: Overall peak rainfall totals are forecast across the southern and eastern halves of Trinidad, with peak rainfall totals between 25 and 75 millimeters. Across the remainder of Trinidad and Tobago, up to 30 millimeters of rainfall is forecast. Gusty winds (45-55 km/h) are likely to favor Tobago and northern Trinidad during and ahead of heavy showers/thunderstorms across both islands.
— When: The TTMS has extended the Adverse Weather Alert, now in effect through 2:00 PM Sunday, July 19th, 2026, for Trinidad, Tobago, and surrounding waters.
— Impacts: The primary hazards will be street/flash flooding and localized ponding in heavy downpours. Highest street/flash-flooding chances are across flood-prone areas across the southern and eastern halves of Trinidad. Gusty winds are possible in heavy showers and thunderstorms, generally up to 55 km/h. These wind gusts, combined with heavy rainfall, may lead to fallen trees/utility poles/lines and lines, as well as landslides, localized wind damage, and agitated seas. Impactful flash flooding or short-lived riverine flooding is not expected.
— What Should You Do: Motorists and residents in areas prone to flooding or landslides should remain alert and exercise caution. Be aware of your surroundings and changing weather conditions as you go about your daily activities. Take necessary precautions to mitigate potential impacts. Monitor official weather updates. If you encounter flood waters, turn around. If you hear thunder, head indoors.
Latest Alerts
Active ITCZ Trigger Adverse Weather Alert For Trinidad
Trinidad and Tobago is NOT under any tropical storm or hurricane threat, watch, or warning at this time.
The Adverse Weather Alert
The TTMS has extended the Adverse Weather Alert at 3:47 PM Saturday, which went into effect at 9:00 AM on Saturday, July 18th, 2026, and now remains in effect through 2:00 PM Sunday, July 19th, 2026, for Trinidad, and now contains Tobago and surrounding marine areas.
This adverse weather event is likely, according to the TTMS:
- There will be a temporary lull in rainfall and thunderstorm activity during the late afternoon, evening, and early night. This stabilizing effect is significantly aided by a high concentration of Saharan dust over the area. However, unsettled conditions are forecast after midnight.
- An approaching tropical wave interacting with the Inter-Tropical Convergence Zone (ITCZ) will trigger showers and thunderstorms. This inclement weather will extend into the daytime hours tomorrow (Sunday), with general improvement anticipated by late afternoon.
- Impacts: Gusty winds and street/flash flooding may occur in areas of heavy showers and thunderstorms.
The alert’s color indicates the event’s severity and the likelihood of its occurrence. Currently, the alert level is Yellow. This means the hazards are likely and the impacts are moderate for this particular alert. You should be aware of the hazards in your area, which include street or flash flooding, gusty winds exceeding 45 km/h to 55 km/h, falling trees, landslides, and agitated seas.
A moderate Adverse Weather Alert can result in possible injuries and behavioral changes, which are necessary to ensure safety. Minor property damage may also occur, temporarily disrupting income-earning activities and affecting several communities.
The Met Office advises the public that motorists and residents in areas prone to flooding or landslides should remain alert and exercise caution. Be aware of your surroundings and changing weather conditions as you go about your daily activities. Take necessary precautions to mitigate potential impacts. Monitor official weather updates.
