Area Forecast Discussion
Issued by NWS Pago Pago
Issued by NWS Pago Pago
024 FXZS60 NSTU 180132 AFDPPG Area Forecast Discussion National Weather Service Pago Pago AS 232 PM SST Thu Apr 17 2025 .Discussion... A weak trough, visible as a line of surface showers over the Islands, is forming along the edge of a ridge to the south. Expect numerous showers to continue tonight through Friday as the trough lingers, with breezy easterly winds possible. By Friday night, the trough will strengthen over the Islands, bringing widespread showers and increasing the risk of flash flooding Saturday through Sunday. Winds will be light and variable, with likely gusts near thunderstorms. The trough will gradually weaken Sunday night, reducing moisture in the area. Showers will taper from widespread to scattered on Monday, possibly becoming isolated Tuesday through Thursday. Light winds will persist through the rest of the forecast period. & .Marine... Seas remain in the 6 to 8-foot range with breezy winds, and a Small Craft Advisory may be issued tonight due to rough conditions from showers and winds. A long-period south swell arriving Friday may bring large breaking waves and an increased risk of rip currents along south facing shores, possibly prompting a High Surf Advisory for the weekend. Seas are expected to gradually subside early next week as winds become light and variable. && .PPG WATCHES/WARNINGS/ADVISORIES... Small Craft Advisory && $$ TM