Riverine Flood Alert Extended For Trinidad – Several Major Rivers Overtop

Key Messages:
— A Riverine Flood Alert (Yellow Level) has been extended for Trinidad. The new alert is in effect from 12:00 AM Friday 30th July 2021 through 10:00 AM Friday 30th July 2021 for “Watercourses and surrounding areas of Trinidad.
— Several major rivers across Trinidad have already overtopped, with the Caroni River at threshold levels, likely overtopping in low-lying areas adjacent to the river bank.
— Between Wednesday and Thursday, between 0.5 to 3.5 inches (12.7-88.9 millimeters) of rainfall has fallen across much of Trinidad. However, with high tides further riverine flooding is possible. Little rainfall is forecast on Friday which will aid in not exacerbating the flood situation.

The Riverine Flood Alert

As we’ve been monitoring, heavy rainfall on Wednesday and Thursday is now flowing through the rivers and tributaries of the island. Several major rivers have already burst their banks, with the largest river of Trinidad, Caroni, at threshold levels with flooding likely ongoing in low-lying adjacent areas.

With high tides (8:26 AM and 8:56 PM), the Trinidad and Tobago Meteorological Service has updated the Riverine Flood Alert (Yellow Level) at 11:55 PM Thursday 29th July 2021.

The alert is in effect from 12:00 AM Friday 30th July 2021 through 10:00 AM Friday 30th July 2021.

Trinidad and Tobago is NOT under any tropical storm watch or warning.

Information from the Trinidad and Tobago Meteorological Service concerning the Riverine Flood Alert for July 29th-30th 2021.

Trinidad’s major watercourses have reached or exceeded threshold capacities. TTMS has received numerous reports of ongoing riverine flooding nationwide (except northwestern and southeastern areas), with floodwaters currently rising in a few communities. No impactful rainfall is forecast overnight. As such, floodwaters are expected to gradually subside by mid-morning.” according to the Trinidad and Tobago Meteorological Service. This “alert” status takes into account the possibility of the event occurring. This riverine flood event has been observed.

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 possible to be aware of the impacts of street, flash, and riverine flooding in your area. Moderate impacts are likely.

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

Carefully monitor weather conditions and river/water levels. Monitor updates from official sources and plan safety measures and do not take unnecessary risks. Avoid driving or wading through floodwaters. Follow the instructions of government officials. 

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