UPDATED WEATHER INFORMATION ON “ISAAC”
Issued: 6 pm Tuesday, 11th September, 2018
AT THIS TIME, THERE ARE NO WATCHES OR WARNINGS IN EFFECT FOR ST.VINCENT AND THE GRENADINES.
The St. Vincent and the Grenadines Meteorological Services continues to monitor the progress of Tropical Storm Isaac, presently located East of the Lesser Antilles. At 5 pm Tropical Storm Isaac was centered near latitude 14.6° North; longitude 51.3° West or about 670 miles (1075 km) east northeast of Saint Vincent and the Grenadines. Maximum sustained winds remain near 70 mph or 110 km/h with higher gusts. Tropical-storm-force winds extend outward 105 miles (165) km from the center. “Isaac” continues to move westward at 17 mph (28 km/h).
On the current forecast track, the center of this system is forecast to pass near Dominica, or approximately 150 miles (240 km) north of mainland St. Vincent by early Thursday. However, by early tomorrow, an outer band associated with “Isaac” could result in some showers and possible isolated thunderstorm across our islands. As the system progresses westward, an increase in moderate to heavy showers and occasional gusty winds can be expected from Thursday and into Friday. Forecast Models suggest that rainfall accumulations of 50 to 75 mm (2 to 3 inches) are possible during the passage of “Isaac”. Sea conditions are also forecast to deteriorate from late Wednesday with swells peaking near 3.5 meters or 11 feet. A small-craft warning will be in effect from 6 pm, Wednesday 12th September, 2018.
The St Vincent and the Grenadines Meteorological Services will continue to monitor this system and provide the necessary updates and/or advisories.