An unfavourable upper level environment has led to a significant reduction(from 20 mp/h to now 5-10 mp/h) in forward speed of the tropical wave which is presently located a few hundred miles east of the island chain. However, moisture ahead of the wave produced occasional moderate showers across some Grenadine islands today under cloudy skies, whereas heavier showers and thunderstorms mainly affected Grenada. Nevertheless, showers are still likely in pockets over the next 24 hours due to low-level instability. Currently, additional rainfall activity is confined closer to and behind the wave's axis and models suggest the islands could be affected by these conditions as early as late Friday into Saturday.
Gentle to moderate(15-25km/h) east north easterly trades would cross the islands with gusts near showers. A shift to south easterly should occur by Thursday late afternoon. An increase in speed(near 35km/h) is likely on Saturday.
Seas are currently slight to moderate in open water with swells peaking to 1.0m on western coasts and ranging between 1.8m - 2.0m on eastern coasts. There is no significant haze intrusion within this forecast period.