textproduct: WSO Pago Pago

Long term [Wednesday through Sunday]

Northeasterly flow is expected to hold rich equatorial moisture over the area through the long term forecast period. This should generally bring rainfall above average for this period. Some shortwave troughs may be embedded within the northeasterly flow that could bring flooding conditions at times, but specific details are unknown at this time (high day-to-day uncertainty).

Marine

Seas currently observed around 5 feet at both Aunu'u and Poloa buoys may slightly increase (5 to 7 feet) tonight and tomorrow as wind conditions become gusty at times due to heavy showers and thunderstorms in the area. Waves may be unpredictable at times due to fluctuations caused by this activity, but should still remain below advisory levels. Seas are likely to slightly subside 4 to 6 feet by Tuesday as winds become a light to gentle breeze out of the north.

By Wednesday, winds are expected to slightly increase out of the northeast, becoming a moderate flow at times. This will be combined with a long period north swell that is forecast by wave models to move over the islands Wednesday through the remainder of the forecast period. Seas are forecast to be in the 5 to 7 foot range Wednesday through the remainder of the period, which is still below Small Craft Advisory threshold. However, with the anticipated long period times, peak periods potential reaching as long as 20 seconds Wednesday and Wednesday night, swimmers and those participating in recreational water activities should anticipate increased potential for enhanced surfs and strong rip currents.

PPG WATCHES/WARNINGS/ADVISORIES

Flood Watch in effect tonight and tomorrow.