Trinidad and Tobago: Disruptions due to flooding possible across Trinidad as of early Nov. 27

Event

Disruptions due to flooding are likely across parts of Trinidad as of early Nov. 27. Heavy rainfall since Nov. 17 has resulted in flooding, landslides, and fallen trees across the country. The Trinidad and Tobago Meteorological Service has issued a yellow (lowest level on a three-tier scale) adverse weather alert across the country as of Nov. 27; periods of heavy rain and thunderstorms are forecast through Nov. 27.

Authorities have warned that waterways are close to their capacity, increasing the chance of floods. Several rivers are at dangerously high levels, including the Cipero, Aranguez, and Poole Rivers, which are between 93 and 100 percent capacity. Eastern Trinidad has been the worst affected by flooding. Manzanilla Mayaro Road partially collapsed Nov. 23. Further downpours will likely trigger additional flooding in the coming days, as well as hamper ongoing recovery efforts for floods that have already occurred.

Hazardous Conditions
Sustained heavy rainfall could trigger additional flooding in low-lying communities near rivers, streams, and creeks. Urban flooding is also possible in developed areas with easily overwhelmed stormwater drainage systems. Sites located downstream from large reservoirs or rivers may be subject to flash flooding after relatively short periods of intense rainfall. Landslides are possible in hilly or mountainous areas, especially where the soil has become saturated by heavy rainfall.

Authorities could issue mandatory evacuation orders for flood-prone communities over the coming days. Disruptions to electricity and telecommunications services are possible where significant flooding or landslides impact utility networks.

Transport
Floodwaters and debris flows could render bridges or roadways impassable, impacting overland travel in and around affected areas. Ponding on road surfaces could cause hazardous driving conditions on regional highways. Authorities could temporarily close some low-lying routes that become inundated by floodwaters.

Localized business disruptions are likely in low-lying areas; some businesses might not operate at full capacity because of flood damage to facilities, possible evacuations, and some employees' inability to reach work sites.

Advice

Monitor local media for weather updates and related advisories. Confirm all transport reservations and business appointments before travel. Make allowances for localized travel delays and potential supply chain disruptions where flooding has been forecast. Do not drive on flooded roads. Charge battery-powered devices in the case of prolonged electricity outages.

Resources

Trinidad and Tobago Meteorological Service