Unfavourable conditions are resulting in degeneration of the elongated area of low pressure east of the island chain. An associated low pressure centre is near 13.6N 56.5W with low chance (10%) of development into a tropical depression, having low values in convective available potential energy. The leading edge stretches across the island chain this morning and moisture levels are sufficient to bring significant rainfall accumulations across some islands.
Residents and motorists across St.Vincent and the Grenadines should remain alert, especially in areas prone to flash-flooding and thunderstorm activity…. See image below, at 11:30am this morning compliments RAMMB.
Mostly cloudy skies are expected across SVG this afternoon; becoming overcast by evening with periods of rain, occasional moderate to heavy showers and thunderstorm activity persisting on Monday. Instability should remain elevated with the next tropical wave moving across the northern Windward and Leeward Islands on Tuesday into Wednesday morning. A northward positioning of the Inter-Tropical Convergence Zone (ITCZ) should add equatorial moisture and instability…
Moderate to occasionally fresh east north-easterly surface winds (20 – 40 km/h) could gust to near 45km/h overnight and veering to south-easterly by morning. Wind speeds should be decreased during Monday with light/gentle southerly breeze by evening. Varying directions are expected late Tuesday.
Sea conditions are slight to moderate in open water with east north-easterly swells ranging 1.0 – 2.0 m across SVG. Slight (0.5 – 1.2 m) seas are expected by Wednesday originating from east south-east.