textproduct: WSO Pago Pago

This forecast discussion was created in the public domain by the National Weather Service. It can be found in its original form here.

Discussion

Latest visible satellite imagery reveals a line of showers developing east of the Manu'a islands and progressing westward toward the territory. Both the GFS and ECMWF models indicate this line will reach American Samoa tonight, with showers gradually clearing by Tuesday morning.

Accordingly, the forecast has been adjusted to reflect an increased chance of showers overnight into early Tuesday. Breezy easterly winds will persist across the area through at last Wedneday. Winds are then expected to sbside to light and variable later in the week as a weak trough develops near the territory. This trough will bring a renewed uptick in shower activity over the weekend.

Marine

PacIOOS observations from the Aunu'u and King-Poloa buoys indicate a southerly swell is currently impacting coastal waters around American Samoa, but sea heights are predominantly from wind-driven waves. Wave heights are higher near Aunu'u (6-8 ft) than at King- Poloa (4-6 ft). The latest WaveWatch III forecast shows seas averaging 5 to 7 feet through the forecast period.

A Small Craft Advisory will be maintained mainly due to persistent breezy easterlies combined with wave heights remaining near advisory levels (particularly at Aunu'u) through Wednesday.

PPG WATCHES/WARNINGS/ADVISORIES

A Small Craft Advisory Remains in effect.

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