Synoptic discussion for American Samoa.

522
FXZS60 NSTU 210104
AFDPPG

Area Forecast Discussion
National Weather Service Pago Pago AS
204 PM SST Mon Jan 20 2025

.Short term...
TONIGHT THROUGH WEDNESDAY NIGHT...A surface ridge located to the
south of the islands is expected to remain stationary over the
next few days, bringing scattered passing showers to the territory
through Thursday night. The RAOB from this afternoon indicates a
conditional unstable profile, suggesting that while significant
instability isn`t fully developed, localized showers and
convective low clouds will persist near mountainous areas. With
the ridge axis positioned to the south southwest, scattered
showers and gentle east winds will continue through Thursday
night.

.Long term...
THURSDAY THROUGH MONDAY...The aforementioned ridge will continue
to maintain scattered showers and gentle east winds through the
weekend and into the beginning of the new week. This persistent
weather pattern will keep conditions generally mild, with brief
showers expected across the territory. As the ridge remains
stationary, the overall trend will be stable, yet slightly
unsettled weather with no significant changes expected in the long
term forecast.

&&

.Marine...
With gentle east winds prevailing, seas are expected to remain 5
to 7 feet through the weekend. There are no significant swells
anticipated to pass across the islands in the coming days, so
conditions will remain relatively calm on the waters.

&&

.PPG WATCHES/WARNINGS/ADVISORIES...
None

&&

$$

American Samoa's Tropical Cyclone Outlook 2024-2025

Synoptic discussion for American Samoa.