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

A trough developing over the Samoa Island chain will linger in the area through the upcoming week. This feature may bring an uptick in showers beginning Sunday, although the risk for flash flooding remains low. Latest satellite data doesn't show an active trough at this time. However, instability trends indicated by the GDI suggest the potential for thunderstorm development within the trough from Monday night through midweek.

Meanwhile, a high pressure system building from the southwest may usher in breezy southeast winds tonight through Tuesday. As the Islands lie between the trough and high pressure system, periods of stronger winds are possible but below wind advisory thresholds. By Tuesday night, the trough is forecast to track slightly southwest before moving back over the territory. Model guidance show the trough lingering in the area through the end of the forecast period before exiting the region.

PPG WATCHES/WARNINGS/ADVISORIES

None

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