A low pressure area is expected to deepen just off the Continental US in the Western Atlantic Ocean tomorrow and be steered northward. Meanwhile, a couple troughs and shearline features are being induced by a low pressure system in the Eastern Atlantic. A weak shear-line should be across our area with occasional cloudy skies and a few scattered showers by tomorrow, Tuesday
and models indicate the greater rainfall accumulations (~ 25mm or 1inch) possible across the Grenadine Islands.
Shower activity should be shifting southwards on Wednesday nearing the twin-island Republic. Models further project significant rainfall accumulations across St.Vincent and the Grenadines (SVG) on Thursday (20 - 30mm or ~ 1inch) and Friday (35 - 50mm or ~ 1½ - 2 inches), with lower-level troughs across our islands.
The east north-easterly moderate to occasionally fresh breeze is expected increase to mainly fresh (30 – 40km/h) by Tuesday night with occasional strong gusts. Wind speeds could increase further, becoming occasionally strong towards weekend.
Slight to moderate sea conditions with north-easterly swells, ranging 0.6 – 1.2m on west coasts and 1.2 – 2.0m on east coasts are across St.Vincent and the Grenadines SVG. Marine advisories may be issued towards mid-week, as wave heights should start rising by Tuesday night in response to increased wind speed on the waters. Swells are expected to peak near 1.5m on west coasts and near 2.5m on east coasts of SVG by Wednesday. Further increase is possible and sea conditions could become moderate to rough (1.8 – 3.0m) across SVG by Friday afternoon.
Barometric readings should continue between 1013 and 1017mb, occasionally rising to 1018mb between troughs (Wednesday).
No significant dust concentrations are expected across our islands over next few days, but thin film of dust is possible on Wednesday.
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