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

The trough from the previous forecast brought showers and gusty winds early this morning. This feature continues to shift south as easterly trades gradually builds in the area. Expect east winds of 10 to 20 mph to remain through midweek with showers embedded within the tradewind flow. Current satellite data shows convective low-level cumulus, suggesting a "passing-showers" pattern for this duration.

By Thursday, winds will slightly diminish to 10 to 15 mph and shift southeast as a strong high pressure system builds over New Zealand. A moist boundary is forecast to develop at the edge of the high pressure, and within our region. Expect an uptick in showers towards the end of the new week, though the potential for flash flooding is low at this time.

Marine

Seas remain elevated due to a southeast swell and breezy winds. Latest observations from the Aunu'u PacIOOS buoy show wave heights around 8 feet, while wind observations hold between 10 to 15 knots, gusting up to 30 knots early this morning. These factors are expected to continue rough ocean conditions until tonight.

Model data suggests seas subsiding below advisory thresholds by Sunday. However, light trade winds could keep textured seas through most of the new week.

PPG WATCHES/WARNINGS/ADVISORIES

Small Craft Advisory

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