Synoptic discussion for American Samoa.

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099
FXZS60 NSTU 040000
AFDPPG

Area Forecast Discussion
National Weather Service Pago Pago AS
100 PM SST Tue Nov 3 2026

.Discussion...
A moist surface profile is evident in the latest upper air
sounding, suggesting that passing showers are possible across the
territory. Latest satellite imagery shows a line of convective
cumulus clouds embedded within the trade wind flow upstream. Model
guidance indicates an uptick in showers tonight as these clouds
move over the Samoa Island chain. However, the potential for flash
flooding remains minimal.

Additionally, a high pressure system to the south is expected to
hold a breezy southeasterly wind pattern through the week. Hence,
numerous showers and southeast winds of 15 to 25 mph are expected
to persist for the forecast period.

&&
.Marine...
Elevated seas persist due to a southeasterly trade wind regime in
the area. Observations from the PacIOOS buoys continue to
indicate wave heights of around 10 to 12 feet, with seas expected
to peak after midnight. By Wednesday, a downward trend in wave
heights is possible as the trade wind regime slightly weakens.
However, from Thursday onwards, 20 knot-winds are forecast to
maintain choppy ocean conditions for the rest of the week. Hence,
a small craft advisory and high surf advisory remain in effect.

.PPG WATCHES/WARNINGS/ADVISORIES...
High Surf Advisory
Small Craft Advisory

&&

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TM