Adverse Weather Alert Remains In Effect As Active ITCZ Forecast To Affect T&T

Key Messages:
— The passage of a tropical wave, with trailing moisture and an active ITCZ is forecast to affect T&T, with heavier rainfall generally remaining offshore and east of Trinidad, as forecast.
— Periods of heavy rainfall may trigger highly localized street or flash flooding, favoring Tobago, over the next 12-18 hours. Additional impacts include increased sustained winds, with wind gusts in excess of 55 KM/H possible, causing power dips/outages, downed trees, and localized wind damage. Landslides are possible across the Northern Range and Tobago. Lightning will accompany thunderstorms. Funnel clouds and waterspouts are possible but at this time, remains unlikely.
– The alert is in effect from 4:00 AM Wednesday through 6:00 PM Wednesday for mainly Trinidad and eastern offshore areas and to a lesser extent Tobago. A Hazardous Seas Alert is also in effect from 11:00 PM Tuesday and continues through 2:00 PM Friday.

The Adverse Weather Alert

The Trinidad and Tobago Meteorological Service has updated the Adverse Weather Alert (Yellow Level) on Wednesday morning at 11:22 AM. This alert went into effect from 4:00 AM Wednesday 13th October 2021 through 6:00 PM Wednesday 13th October 2021 now for mainly Trinidad and offshore areas and to a lesser extent Tobago.

Trinidad and Tobago is not under any tropical storm watch or warning at this time.

Adverse Weather Alert information from the Trinidad and Tobago Meteorological Service
Adverse Weather Alert information from the Trinidad and Tobago Meteorological Service
Adverse Weather Alert information from the Trinidad and Tobago Meteorological Service

While impactful rainfall activity is favouring eastern offshore areas of Trinidad, there is a medium to high (60-70%) potential for moderate to heavy showers and isolated thunderstorms this afternoon, due to the presence of an active Inter-Tropical Convergence Zone (ITCZ). Street/flash flooding is likely in heavy downpours and gusty winds in excess of 55 km/hr may accompany showers/thunderstorms.” according to the Trinidad and Tobago Meteorological Service. This “alert” status takes into account the possibility of the event occurring. This adverse weather event is likely.

The color of the alert indicates the severity of the event and the probability of the event occurring. Currently, the alert level is at Yellow. This means that the hazard is likely, but the severity of impacts is moderate for this particular alert. You should be aware of the hazards in your area associated with gusty winds in excess of 55 KM/H, street, and flash flooding as well as landslides.

For a moderate Adverse Weather Alert, there is the potential for possible injuries, where behavioral changes are required to ensure safety. There may be minor damage to property, with income-earning temporarily disrupted and a couple of communities are affected.

The Met Office is advising the public to monitor weather conditions and updates from official sources.

Image Credit: Trinidad and Tobago Meteorological Service
Image Credit: Trinidad and Tobago Meteorological Service
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