An Adverse Weather Alert yellow level is to take effect from 6pm on Friday and will end at 5pm on Saturday.
The Meteorological Service said there is a high chance of brisk isolated heavy showers/thunderstorms with accompanying gusty winds in excess of 55km/hr.
The Met Service said these wind gusts will be brief but are capable of breaking tree branches, displacing unsecured roofs and loose outdoor objects, and can even topple over unhealthy trees.
It said street flooding is also likely in heavy downpours and seas can become additionally agitated in strong winds.
Members of the public are asked to secure loose items outdoors and livestock.
Small craft operators should be on the alert for above normal or choppy sea condition in strong winds.
Monitor weather conditions and updates from official sources via www.metoffice.gov.tt and www.odpm.gov.tt.