Occasional showers are forecast for this afternoon into tonight, some of which are likely to be moderate to heavy. Isolated to scattered showers associated with a tropical wave will begin to affect the islands on Tuesday. A favourable upper level environment remains present to enhance shower activity; however, marginal mid-level moisture is over the Eastern Caribbean, fluctuating with time, inhibiting deep convection. By late Tuesday night, an improvement is anticipated with a few occasional showers forecast for Wednesday and Thursday as upper levels become less favourable.