The Yellow Level Adverse Weather Alert issued by the Met Service and in effect for today, Thursday 1st to Friday 2nd October 2020. (Image courtesy TTMS)

Persons living in flood prone and landslide prone areas will need to be extra vigilant today, as heavy winds and thunderstorm activity are forecast.

The Trinidad and Tobago Meteorological Service (TTMS) has issued a Yellow Level Adverse Weather Alert for both islands, which will remain in effect until early Friday morning.

According to a TTMS advisory, the Intertropical Convergence Zone (ITCZ) is expected to become very active over Trinidad and Tobago from early on Thursday 1st October 2020.

The Met Service explains this abundance of moisture and favourable upper level conditions—in addition to the passage of a tropical wave—will create very unstable conditions over both islands. As such, periods of showers and rain are likely in most areas and occasional thunderstorm activity can be expected as well. Accompanying this shower activity will be a surge of winds in the low levels, which will promote very gusty conditions, particularly during heavy showers and thunderstorms.

A Tropical Wave is a kink or bend in the normally straight flow of surface air in the tropics which forms a low pressure trough, or pressure boundary, and showers and thunderstorms.  It can develop into a tropical cyclone.

The Intertropical Convergence Zone (ITCZ) is the region where the north-easterly and south-easterly trade winds converge, forming an often continuous band of clouds or thunderstorms near the equator.

A Yellow Level Alert means there is a MODERATE RISK to public safety, livelihoods and property.  Citizens can expect weather conditions may cause some disruptions in a few places. There is some potential for minor injuries. Most people would be able to go about their normal activities, but some will be directly impacted.

Under a Yellow Alert, citizens are required to monitor conditions and official updates. They must increase monitoring of their environment and stay tuned to official sources for updates—such as the TTMS and the ODPM—including the media.