The Saint Lucia Meteorological Services says Saint Lucia will experience a wet weekend as a tropical wave continues to affect the Island. The weather system dumped intermittent heavy rainfall accompanied by thunder and flashes of lightning across the Island on Thursday and the trend is projected to continue into Friday. 'The models are showing that apart from this tropical wave, we have instability around the Island and most likely we'll have a wet weekend. We are expecting another system to affect us on Sunday,' Director of the Meteorological Services, Andre Joyeaux, explained. He disclosed that even when the tropical wave