Cloudy to overcast skies with moderate to heavy showers, periods of rain and isolated thunderstorms are anticipated across St. Vincent and the Grenadines (SVG) tonight into tomorrow as favourable upper level conditions and adequate moisture continue to influence the weather pattern.
Today, there were reports of land slippage, damage to property, and rivers overflowing their banks in various communities of mainland St. Vincent. Due to the saturated nature of soils from recent rainfall events, flash-flooding and similar aforementioned activity are likely to occur. In addition, accumulations of 50 mm (approximately 2 inches) with isolated higher amounts in mountainous areas are possible during the next 18 hours.
Therefore, the flash-flood warning that is already in effect for SVG has been extended until 12 noon Tuesday October 6th 2020. Residents and motorists in areas prone to flooding and landslides or near rivers and streams should continue to be vigilant and take the necessary precautionary measures to protect life and property. There may be some temporary improvement to our weather conditions on Wednesday as unfavourable upper level conditions are forecast. On Thursday afternoon, the potential for showers and thunderstorm activity increases again.
Light to gentle (~10–20km/h) east south east to eat north easterly trades would move across the islands over the next 48 hours. A predominantly easterly flow with a slight increase (~25km/h) is expected on Thursday.
Slight to moderate sea-conditions are across our islands, near 1.0 m on western coasts and near 1.5 m on eastern coasts. Swell heights could gradually fall, becoming slight (less than 1.0 m on western coasts and near 1.2 m on eastern coasts) by Tuesday.