IR Satellite

 

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A weak trough is approaching the islands, and as upper level becomes conducive to enhance shower activity, model guidance is indicating the chance of some showers as the weekend progress into early Monday morning. After which, a few occasional showers are likely as the ridge of high pressure becomes the dominant feature.

Weak unstable conditions are across our islands and a low-level trough could result in scattered showers across St. Vincent and the Grenadines (SVG) this evening. Instability should be reduced during Monday, but lingering showers are possible early Tuesday. The High Pressure System is expected to rebuild across our area by Tuesday afternoon.

Moderate to fresh (25 – 40 km/h) easterly breeze should gradually turn east north-easterly by tonight and fresh trades during Sunday could become strong (30 – 50 km/h) by Monday night. 

Slight to moderate (1.2 – 2.2 m) sea conditions are across SVG, with north north-easterly swells. Wave heights could start rising by Sunday,

Unstable conditions associated with the trough will continue to affect Saint Vincent and the Grenadines this afternoon resulting in occasional light to moderate showers. The continual westward movement of the trough system away from the Eastern Caribbean, and a less favourable upper level will reduce the chance of shower activity across Saint Vincent and the Grenadines tonight into Saturday. After which, another trough system will be approaching the island chain with model guidance indicating most of the shower activity around Sunday night.  

Unstable conditions with a broad trough could continue to trigger showers across St. Vincent and the Grenadines (SVG), under mostly cloudy skies. Cloudiness could be occasionally reduced, but unstable conditions are expected to linger and another trough could approach the region late Saturday bringing more showers across our area during Sunday.

Moderate (20 – 30 km/h) cool breeze from the east north-east should turn east south-easterly early Friday, returning to east north-east Saturday night and increasing during Sunday. 

Slight to moderate (1.2 – 2.5 m) sea conditions

A surface to mid-level trough will continue to affect Saint Vincent and the Grenadines during the next 72 hours. Some scattered showers are forecast for tonight over the mainland. However, as time passes, a favourable upper level is likely to enhance shower activity and increase the chance of a few isolated thunderstorms. Therefore, from tomorrow afternoon into the weekend, occasional light rain, and some showers with a moderate (50%) chance of isolated thunderstorms are possible across Saint Vincent and the Grenadines.

The Atlantic High Pressure System is becoming less dominant, with a shearline/trough across the South-Eastern Caribbean. Most shower activity is south of mainland St. Vincent, across the Grenadines and concentrated near Trinidad. The broad shearline/trough could linger across the islands, triggering scattered showers. Instability and showers could increase across St. Vincent and the Grenadines (SVG) late Saturday, before the trough exits the region.

Fresh (30 – 40 km/h) east north-easterly breeze should gradually decrease, becoming moderate (20 – 30 km/h) by Thursday.

The Atlantic High Pressure System is causing increased wind speeds across our area. Meanwhile, a weak shearline across the Northern Windward Islands is gradually dipping southward with occasional cloudiness and few showers across St. Vincent and the Grenadines (SVG). Scattered showers are expected by late Tuesday and instability could linger a few days.  

Fresh to occasionally strong (30 – 45 km/h) north-easterly breeze could increase Tuesday night (40 - 50 km/h) in exposed areas. Wind speeds should be generally reduced by Friday. 

Moderate (1.5 – 2.5 m) sea conditions with east north-easterly swells are across SVG and could become rough

A surface to mid-level trough will continue to affect Saint Vincent and the Grenadines during the next 72 hours. Some scattered showers are forecast for tonight over the mainland. However, as time passes, a favourable upper level is likely to enhance shower activity and increase the chance of a few isolated thunderstorms. Therefore, from tomorrow afternoon into the weekend, occasional light rain, and some showers with a moderate (50%) chance of isolated thunderstorms are possible across Saint Vincent and the Grenadines.

The Atlantic High Pressure System dominates across the region, with occasional showers as brisk winds push low-level clouds across the islands. A few showers are possible early morning Monday, associated with a weak low-level shearline across the Northern Windward Islands. As the shearline dips southward and lingers across our area, the chance for scattered showers across St. Vincent and the Grenadines (SVG) increases during Tuesday.  

Moderate to occasionally fresh (25 – 40 km/h) north-easterly breeze and occasional gusts are expected, with a temporary increase (up to 50 km/h) possible during Tuesday night.

Atlantic High Pressure System should dominate across the region for the next few days with occasional showers across St.Vincent and the Grenadines (SVG), as brisk winds push low-level clouds across the area. Model analysis now indicates the low-level shearline could approach the northern Windward Islands late Sunday. 

Moderate to fresh (25 – 40 km/h) east north-easterly breeze could be occasionally reduced (15 - 25 km/h) during the weekend, as a shearline approaches the area. Fresh north-easterly trades with higher gusts (30 - 45 km/h) are possible late Sunday