Monday 24th July 2017 PM.
Tonight & Tomorrow :
The high pressure ridge to the south continues to move eastward and thus maintain stable and drier weather conditions across the region. Observations reveals a stable and dry atmospheric profile. A short-wave trough to the east is slowly drifting westward over the forecast zone, and will likely introduced some showers for the short term forecast. Global models suggest some isolated showers tonight into tomorrow afternoon before the trough shift further west of Savaii. Anticipate cloudy periods with isolated showers with moderate east to southeast winds.
Wednesday through Friday:
A tail-end of a frontal system to the south of the forecast zone will shift northeastward to the south of the main Samoan islands and will likely introduced some showers mainly to the southern parts of the main islands starting Wednesday evening towards Thursday afternoon. Another intense high pressure system behind the aforementioned fronts enter the forecast zone by Thursday night and will established the tradewind regime at the latter part of the long term forecast.
Aunuu wave buoy recorded swell height of 8-10 feet, thus warrant the validity of the small craft advisory as previously in effect.
SMALL CRAFT ADVISORY (High swells)