FRIDAY 02nd JUNE 2023 – PM SHIFT
TONIGHT AND TOMORROW:
The availability of a ridge of high pressure continues to restrict a convergence zone to the North of the islands together with its associated convections. Withal, windward locations experienced a few showers due to the persistence of the Easterly wind flow mostly availed over most of the group. The sounding profile of the atmosphere indicated reduced indices compared to the last observation. The strengthening high-pressure system further Northeast in the upper altitude steers cold tops to Northern parts of the group although the likeliness of showery activity associated with such activities is very low. Therefore expect cloudy periods with a few showers and a few thunderstorms over the area for tonight into tomorrow.
SUNDAY THROUGH THURSDAY:
The tradewind weather is likely to enter the area throughout the weekend into the new week. However, the high-pressure system may steer over the group a convergence zone by mid-week thus increasing the potential of showery activities over Samoa. Also, Easterlies may increase as the Southeasterly surge may soar increasing the chance of moderate to fresh winds engulfing the group from the Southeast. Furthermore, showers were then indicated in the forecast for proper precautions whilst a mandatory amendment may be proposed should conditions accord a consensus pending numerical prediction.
The latest observations indicate receding wave activity now ranging from 2 metres and below. The previously mentioned intensified high-pressure system has exited the region thus aiding the decreasing trend of wave reduction, hence the cancellation of the Marine Advisory is now enforced for all marine and coastal areas.
Moreover,the Eastward movement of a new high-pressure system may re-introduce elevated waves and swells as early as Tuesday of the new week and such may prompt the issuance of another Marine Advisory for all marine waters likely on Sunday.
CANCELLED: MARINE ADVISORY
E Toluono, S Lafoga & MJS