Sea bathers should exercise caution for breaking wave action along the shoreline due to the presence of long period northerly swells especially on eastern coasts. By definition, a swell period is the time required for one complete wave length to pass a fixed point.
In deep water, long-period waves travel faster than short-period waves. Therefore, when they(long period waves) hit shallow water they slow down more abruptly and break with more “punch”.
Long-period waves are also thicker from front to back, so more volume of water is shifted when they break. The combination of those two factors makes longer-period waves more powerful than shorter-period ones.
Seas will remain slight to moderate in open water, with swells peaking near 1.0m on western coasts and ranging between 1.8m to 2.3m on eastern coasts.
The atmosphere is forecast to remain relatively dry across the weekend into Monday and no significant haze intrusion is anticipated.
Therefore, the probability of showers is expected to remain low, brief, isolated and short lived in nature. In addition, a low pressure system remains north east of the islands, resulting in light(less than 10 km/h) northerly and northeasterly wind speeds across SVG.
A slight increase(15-25km/h) may be expected from Monday as the system moves further northward.
