Area Forecast Discussion
Issued by NWS Pago Pago
Issued by NWS Pago Pago
886 FXZS60 NSTU 220045 AFDPPG Area Forecast Discussion National Weather Service Pago Pago AS 145 PM SST Fri Aug 21 2026 .Discussion...Moderate to breezy southeast trade winds with embedded showers will dominate weather conditions across American Samoa through the weekend and into next week. A strong high near New Zealand continues to build and drift east, keeping the trade- wind regime in place. Latest model guidance suggests the high will weaken midweek as it becomes centered southeast of the islands, allowing winds to trend more easterly. A trough will also develop nearby, increasing instability and enhance shower coverage. With this update, the main adjustment to the previous forecast will be towards the latter part of the new week, to account for the trough-related weather. && .Marine...Latest PacIOOS wave-buoy observations remain within advisory thresholds. Combined southeast trades and a south swell continue to produce hazardous coastal conditions. A High Surf and Small Craft Advisories remain in effect as these hazardous conditions are expected to last through the weekend and into early next week. && .PPG WATCHES/WARNINGS/ADVISORIES... High Surf Advisory Small Craft Advisory && $$