Moderate to heavy showers, gusty winds and possible isolated thunderstorms are forecast across Saint Vincent and the Grenadines tonight and tomorrow due to the passage of a tropical wave.
The upper levels will remain favourable during the next 24 hours, enhancing shower activity. In addition, gusty winds are accompanying the wave, and consequently sea conditions will be moderate to rough with swells peaking to approximately 3.5 m (11ft) on the eastern coasts tonight, becoming 3.0m (10ft) tomorrow.
Model guidance is indicating about 3 inches (~ 75mm) of rainfall during the next 24 hours period. Therefore, a flash- flood watch is in effect until further notice.
Residents and motorists should be prepared in areas prone to flooding and landslides or near rivers and streams.
Persons in wind exposed areas should be prepared as loose objects can become airborne as winds become gusty near showers.
In addition, small craft operators and sea bathers should be prepared for above normal sea- swells.
A Flood-Watch is issued when conditions are favourable and there exists the possibility of flooding during the watch period, and may be upgraded to a warning if conditions warrant.