Area Forecast Discussion
Issued by NWS Pago Pago
Issued by NWS Pago Pago
337 FXZS60 NSTU 230109 AFDPPG Area Forecast Discussion National Weather Service Pago Pago AS 209 PM SST Wed May 22 2024 .Short term... A dry airmass is evident over the region as a strong ridge remains in the area. The trough from the previous forecast that was anticipated to move close to the Islands today ended up being anchored more northwest than expected. This pattern was evident on latest satellite data showing thunderstorms near Upolu and Savaii. Meanwhile, American Samoa stayed in the clear throughout the day. This fair weather pattern is forecast to continue through Friday. .Long term... The long term forecast from yesterday still holds as a trough develops over the Islands by Saturday. Variable winds and an uptick in showers is expected for this time. However, model data suggests the trough will not be organized until Tuesday. Hence, numerous showers is possible for the rest of the forecast period; though the potential for flooding is low at this time. .Marine... Latest wave heights are around 8 to 10 feet as breezy winds linger in the area. For this reason, a small craft advisory remains in effect through tonight. However, as winds diminish in the region by Thursday, so will seas. Expect waves to fall below advisory thresholds by this time. Thereafter, no significant seas or swells are forecast through Monday. && .PPG WATCHES/WARNINGS/ADVISORIES... Small Craft Advisory && $$ TM