— A surface to low-level trough is moving across Trinidad and Tobago, with a favorable atmospheric environment. However, strong wind shear is keeping much of the activity brief and mainly east of Trinidad and Tobago. Showers and thunderstorms are still forecast to affect the country through Monday. Note that higher, overall rainfall accumulations are forecast to remain south and east of the country, with localized high totals along western Trinidad.
— Main impacts include gusty winds up to 45 KM/H, with winds in excess of 55 KM/H possible, and street or flash flooding across Trinidad, mainly southern areas on Sunday. 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. Funnel clouds and waterspouts are unlikely. Seas are forecast to remain agitated.
– The alert remains effective from 3:30 AM Sunday through 4:00 PM Sunday for Trinidad, particularly southern areas.
The Adverse Weather Alert
The Trinidad and Tobago Meteorological Service has issued the Adverse Weather Alert (Yellow Level) on Sunday morning at 3:30 AM. This alert went into effect from 3:30 AM Sunday 12th December 2021 through 4:00 PM Sunday 12th December 2021 for Trinidad.
Trinidad and Tobago is not under any tropical storm watch or warning at this time.
“There is the high (70%) chance of moderate to heavy rainfall that can lead to localized ponding and street flooding. Winds can become gusty in excess of 55km/hr near heavy downpours and can displace loose outdoor objects and unsecured roofs. Landslides/landslips are also 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 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 outdoors and livestock. Small craft operators should be on the alert for above normal or choppy sea conditions in strong winds. The public should monitor weather conditions and updates from official sources.