The Central Atlantic High Pressure dominates, with our islands positioned on the southwestern edge with moisture converging in low level pulses. Shower activity has been inhibited due to mid-level dry air across the region over past days, with only isolated showers possible. A low to mid level shearline is expected to dip across the islands later today into Monday.
Models indicating some mid-level moisture should be advected over the island chain Monday, thus increasing the chance for showers across our islands.
Meanwhile, an upper level low could fill to a trough overnight near Cuba and move eastward across the central and eastern Caribbean Tuesday resulting in few scattered showers across the area. Shower activity should be decreasing again by Wednesday.
Fresh (29-38 km/h) easterly winds should continue this afternoon, occasionally dipping to moderate (20-8 km/h) breeze with the approach of low couple level pulses in the wind flow.
Mean sea-level pressure should range 1015-1018 mb as the Central Atlantic High Pressure dominates, with a slight decrease (1014-1017 mb) Tuesday and Wednesday.
Sea swells from the ENE are expected to gradually decrease becoming slight to moderate (1.2m on west to 2.0m on east), by Monday.
Dust concentrations are greater on the southern edge of the High Pressure System, thus reducing visibility across the Grenadines today.