Overnight, shallow clouds crossing our area could bring few scattered showers. A few weak pulses in the wind flow could result in few scattered showers on Tuesday. By nightfall, a weak trough should be crossing the island chain. Meanwhile, fairly good visibility should gradually thicken late Tuesday which may inhibit shower activity. However, hazy conditions should become patchy late Wednesday
into Thursday allowing for scattered showers as the tropical wave affects our islands. Mid-level moisture could increase late Wednesday, with shower activity possibly being enhanced by weak upper level support on Thursday.
Moderate to fresh (20 - 40km/h) east south-easterly breeze should start backing to east-north-east as the tropical wave approaches the region during Wednesday; followed by an east-south-easterly wind flow with moisture converging across our area on Thursday.
Mean sea-level pressure should generally range 1014 mb - 1016 mb overnight, rising slightly during Tuesday. However, a low pressure area could deepen off east coast USA, with a weakening effect on the Atlantic High Pressure System by mid-week causing values to dip to 1013 mb - 1014 mb by Thursday as tropical wave crosses. Slight to moderate (1.0m to 1.8m) easterly sea swells can be expected over the next few days.
A thick plume of dust is expected to reduce visibility and air quality by Friday.