Issued at 10:00 am, Saturday 19 th August, 2023
An area of low pressure/disturbance with some disorganized showers and thunderstorms now has
low-medium chance (20 – 40%) of development and could result in very unstable conditions
across St. Vincent and the Grenadines (SVG) today, continuing tonight and during Sunday.
Upper-level conditions could enhance pockets of moderate-heavy showers, thunderstorm activity
and periods of light-moderate rain with significant rainfall accumulations across SVG possibly
near/exceed 100mm (4 inches) within the next 48 hours.
As a result, a Flash Flood watch is being issued for St. Vincent and the Grenadines until Monday
21st August 2023 at 6 am…Residents and motorists in areas prone to flooding and landslides
or near rivers and streams should be prepared…
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.
In addition, moderate-fresh (25 – 35km/h) north-easterly trade-winds are expected to turn east south-easterly this evening and southerly during tonight, with occasional gusty/squally conditions
(~55km/h). This could result in deterioration of sea conditions this evening, with possible surges near 3.5m – 4.0m on northern and eastern coasts of St. Vincent during tonight, especially around
high-tide time 8:02pm…Be prepared to take action!