— The passage of a tropical wave, the ITCZ, as well as a series of trough systems are affecting the Lesser Antilles with heavier rainfall affecting Tobago and generally remaining north of T&T, as forecast.
— Periods of heavy rainfall may trigger street or flash flooding across both islands over the next 24 hours. The main impacts include increased sustained winds, with wind gusts in excess of 45 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 mainly Friday through Saturday, with severe thunderstorms possible on Friday.
– The alert is in effect from 10:00 AM Friday through 6:00 PM Friday for mainly Tobago and offshore areas, and to a lesser extent Trinidad.
The Adverse Weather Alert
The Trinidad and Tobago Meteorological Service has issued an Adverse Weather Alert (Yellow Level) on Friday morning at 9:48 AM. This alert will go into effect from 10:00 AM Friday 8th October 2021 through 6:00 PM Friday 8th October 2021 for mainly Tobago and offshore areas and to a lesser extent Trinidad. Based on the latest model guidance, this alert may be extended through the weekend.
Trinidad and Tobago is not under any tropical storm watch or warning at this time.
“Rainfall activity of varying intensities is expected over the next several hours due to the passage of a Tropical Wave. While the activity is not forecast to be continuous over the period, there is a high (70%) chance of intermittent heavy rain/showers and isolated thunderstorms, which can lead to street/flash flooding and localized ponding. In the event of heavy showers/thunderstorms, gusty winds in excess of 45 km/hr may be experienced. Landslides/landslips are likely in areas so prone.” 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 secure any loose outdoor objects, monitor weather conditions and updates from official sources.