The Meteorological Office at the Maurice Bishop International Airport has advised that an Atlantic tropical wave is approaching the island chain and is about 86 nautical miles (nm) east of Grenada and moving westward.
The wave is engulfed in the ITCZ moisture and scattered moderate to isolated strong convection is observed. Based on its forward speed and model projections, the axis of the wave would traverse the island chain on Wednesday afternoon, inducing periodic cloudiness, showery activity, and periods of rain and medium chance of thunderstorms.
Due to the approaching system, there will be an increase in cloudiness and rainfall expected overnight.
Models further suggests that the tail end of the wave, coupled with ITCZ activity may trigger similar conditions on Thursday and parts of Friday if conditions remain conducive.
With a medium (40% to 60%) chance of flooding forecast, likely impacts include landslides/treefall between Wednesday and Friday if moderate or heavy showers or prolonged periods of rainfall occur.
Winds may become gusty at times and seas may become agitated. Hence a small craft advisory is in effect!
Therefore, NaDMA encourages citizens to be mindful of the approaching tropical wave and the possible impacts it can bring. The likelihood of flooding and landslides will be increased based on the amount of rainfall received in the past few days.
NaDMA, the official source for all disaster-related information in Grenada.