SYNOPSIS: A Tropical wave and upper level trough are affecting the islands
FORECAST: Cloudy to overcast with occasional moderate to heavy showers, periods of rain and thunderstorms
WIND: ENE -ESE at 20 to 40 km/h, with higher gusts near showers
SEAS: Moderate in open water with swells 1.5m to 2.0m
Advisory: Small craft operators and sea bathers should exercise caution for above normal sea swells
Residents and motorists should be on the alert for possible flooding near rivers, streams and low lying areas.
Weather outlook:
Moisture levels and instability are expected to remain elevated for the rest of the week as upper level give support and enhancement to low level troughs and tropical waves crossing the islands.
Upper level support resulted in most shower activity just east of island chain today. An expected deepening and shift in upper level low and trough axis, could result in the shower activity shifting to over the island chain tonight into Tuesday. Additionally, a southeasterly flow on Tuesday could add to lower level moisture, with increase activity by afternoon. A temporary reduction in showers on Wednesday morning is possible, followed by the next tropical wave late Wednesday into Thursday. Rainfall accumulations could trigger overflowing of rivers and streams causing flooding and land slippage. Some models suggest over 3 inches (75mm) possible between Tuesday and Wednesday.
Moderate (20-28km/h) northeasterly breeze could become occasionally fresh (29-38km/h) turning southeasterly by Tuesday, and temporarily gentle (12-19 km/h) by evening.
Moderate (1.5m - 2.5m) seas could become occasionally slight on the west coasts. Patches of slight haze are expected to alternate with shower activity throughout the rest of the week.
J. Mc Donald
Meteorological Services
Argyle International Airport
St. Vincent & the Grenadines
Phone/Fax: (784) 458-4477