— The Intertropical Convergence Zone is nearing Trinidad and Tobago, as forecast, with strong wind shear keeping much of the activity south and east of Trinidad. Showers and thunderstorms are forecast to begin affecting eastern and southern Trinidad near midnight, spreading across the country through Wednesday. Note that higher, overall rainfall accumulations are forecast to remain south and east of the country.
— Main impacts include gusty winds in excess of 55 KM/H and street or flash flooding across both islands. Flooding will be exacerbated across Southern Trinidad, where several streams, tributaries, and smaller rivers have already burst their banks. Increased sustained winds across the country, particularly ahead of and during thunderstorms and heavy showers are also possible. These gusty winds may cause scattered areas of power dips/outages, downed trees, and localized wind damage.
— Frequent lightning may accompany thunderstorms. Landslides are possible across the Northern Range and Tobago. Funnel clouds and waterspouts are unlikely. Seas are forecast to remain agitated.
– The alert remains effective from 11:00 PM Tuesday through 4:00 PM Wednesday for Trinidad, Tobago, and surrounding marine areas.
The Adverse Weather Alert
The Trinidad and Tobago Meteorological Service has issued an Adverse Weather Alert (Yellow Level) on Tuesday afternoon at 2:56 PM. This alert will go into effect from 11:00 PM Tuesday 26th October 2021 through 4:00 PM Wednesday 27th October 2021 for Trinidad, Tobago, and surrounding marine areas.
Trinidad and Tobago is not under any tropical storm watch or warning at this time.
“Rainfall and showers of varying intensities are expected overnight tonight (Tuesday 26th) into tomorrow (Wednesday 27th), with a 60% to 70% (medium to high) chance of thunderstorm activity. Gusty winds in excess of 55km/hr are likely, especially near heavier showers or thunderstorms. IMPACTS: Isolated flash floods, localized street flooding, and ponding can cause temporary traffic disruptions and landslips are possible in areas so prone. Gusty winds can lead to broken tree branches and loose/unsecured items being displaced. Seas can become agitated due to strong winds.” 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 mainly with gusty winds in excess of 55 KM/H, but lesser so 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 secure loose items and livestock, taking all necessary precautions.