A FLASH-FLOOD WATCH IS IN EFFECT FOR ST VINCENT AND THE GRENADINES UNTIL 6 PM 23rd AUGUST 2021
Issued at 6:00 pm, Sunday 22nd August, 2021
Cloudy to overcast skies, frequent pockets of moderate to heavy showers, periods of light rain and scattered thunderstorms are anticipated across St.Vincent and the Grenadines due to the passage of a tropical wave. Rainfall accumulations of 75 - 100mm (approximately 3-4 inches) with isolated higher amounts in mountainous areas are possible during the next 24 hours.
Due to the already saturated nature of the soils, any additional rainfall could lead to additional flooding and land slippage.
As a result, the flood advisory that was already in effect for a low risk of flooding has been upgraded to a Flash-Flood watch for St. Vincent and the Grenadines until 6:00 pm, Monday 23rd August 2021. Residents and motorists in areas prone to flooding and landslides or near rivers and streams should exercise extreme caution.
In addition, wind speeds ranging between 30 - 50km/h or (19 - 31mph) are anticipated as this tropical wave crosses our islands. These near gale speeds would agitate the ocean surface and cause sea conditions to become moderate (1.5m – 2.5m). Therefore, small craft operators and sea bathers should exercise extreme caution for above normal sea swells and gusty winds and reduced visibility due to heavy showers.
A Flood-Watch is issued when conditions are favourable and there exists the possibility of flooding during the watch period.
This flash-flood watch may be upgraded to a warning if conditions warrant.