Area Forecast Discussion
Issued by NWS Pago Pago
Issued by NWS Pago Pago
815 FXZS60 NSTU 160105 AFDPPG Area Forecast Discussion National Weather Service Pago Pago AS 205 PM SST Sat Aug 15 2026 .Short term... TONIGHT THROUGH MONDAY NIGHT...High pressure will maintain gentle east winds tonight. As trough moving south of the islands on Sunday, will diminish winds to light and variable on Sunday morning. With the trough slowly moving southeast, winds will remain light flow through Monday night. The ridge will continue to hold stable weather tonight through Monday night. .Long term... TUESDAY THROUGH SATURDAY...As the trough moves farther southeast, another high pressure approaching from the southwest will bring gentle trades on Tuesday night. The strong high pressure gradually increase trades to breezy on Wednesday morning before reaching strong flow on Wednesday afternoon. As the high pressure moves east southeast slowly, strong trades will persist through the weekend. Models are now bringing a slight increase of rain across the islands on Wednesday as passing showers. As the high pressure continues to migrate east, the line of showers will be pushed up north on Thursday. && .Marine... Seas of 5 to 7 feet will persist tonight and the rest of the weekend. As the tradewinds move across the islands and increase to strong flow on Wednesday, seas will build 7 to 9 feet on Tuesday night and 9 to 12 feet on Wednesday morning. With strong trades remaining across the islands through the weekend, seas will also persist. && .PPG WATCHES/WARNINGS/ADVISORIES... None. && $$