At 5 a.m. today, the centre of Tropical Storm Isaias was located near latitude 17.2 North, longitude 67.9 West, or about 100 miles or 165 kilometres west southwest of Ponce, Puerto Rico. Isaias is moving toward the northwest near 21 mph or 33 km/h, and a west-northwestward to northwestward motion with some decrease in forward speed is expected over the next couple of days.
On the forecast track, the centre of Isaias will move over Hispaniola late today and near the Southeastern Bahamas by early Friday. Maximum sustained winds are near 60 mph or 95 km/h with higher gusts. Little change in strength is anticipated until landfall in the Dominican Republic later today, with re-strengthening forecast on Friday and Saturday. The Saint Lucia Meteorological Services will continue to closely monitor the progress of this system.
A tropical wave located over the eastern tropical Atlantic is moving westward near 17 mph or 28 km/h.
A broad area of low pressure, associated with a second tropical wave, located over the far eastern tropical Atlantic is producing disorganized showers and thunderstorms. Some development of this system is possible during the next day or two before environmental conditions become unfavorable.
FORECAST FOR THE LESSER ANTILLES
Cloudy to overcast with showers and thunderstorms over the Leeward and Virgin Islands. Elsewhere, partly cloudy to cloudy skies with some scattered showers and possibly isolated thunderstorms.