textproduct: WSO Pago Pago

DISCUSSION

Passing showers with higher gusts throughout the morning hours of the day continues as open-cell cumuli clouds move across the islands. These passing showers may have caused minor floodings around the islands from time to time. These conditions are also evident on the latest satellite imageries with the ridge remaining over the area. Upper air observations (RAOB) from this afternoon (26/00Z) show a conditionally unstable atmospheric profile, also supporting the conditions aforementioned. However, model data shows a mid-level trough over the area on Thursday, potentially enhancing showers for the rest of the short-term forecast period (through Friday). Moderate northeast winds with higher gusts during heavy downpours are to remain for tonight through at least Friday.

Long term model projections show the ridge remaining for the rest of the forecast period. The ridge will likely keep scattered to numerous showers, heavy at times, with moderate to fresh northeast-east winds throughout this period.

There is a low to no chance of any tropical system developing in or move into the area of responsibility (AOR) for this forecast period.

Marine

Observation of seas remaining calm and serene in the last couple of days will likely continue for this forecast period (5 days out). This is reflected on the latest observations from the PacIOOS buoys (Aunu'u and King-Poloa), reporting seas of 4 to 6 feet. However, model trends show seas slightly building to around 7 feet, possibly advisory levels (8 feet) on late Friday. This may likely be due to winds picking up to moderate to fresh breeze. Will continue to monitor conditions as more data becomes available. Nonetheless, seas will remain favorable for this forecast period.

PPG WATCHES/WARNINGS/ADVISORIES

NONE