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FXZS60 NSTU 080127
AFDPPG

Area Forecast Discussion
National Weather Service Pago Pago AS
227 PM SST Sun Jun 7 2026

.Short term...

Tradewinds decreased today throughout the American Samoa islands.
Easterly winds reached up to around 10 mph and is expected to
continue decreasing to a light and variable winds for Monday and
Monday night. Meanwhile, partly cloudy skies are seen on the
satellite imagery. These conditions are forecast through Monday
night as a weak ridge of high pressure is to remain over the
region.

For Tuesday, a ridge of high pressure from the southwest is to
bring a weak trough over the area. As the trough approaches,
scattered showers are anticipated. South/southeasterly trade
winds are to develop and increase throughout the day. Winds speeds
may increase to around 20 mph by the afternoon.

.Long term...

From Tuesday night through the rest of the week, we are expected
adverse conditions for American Samoa.

The aforementioned high pressure system from the southwest is to
strengthen. This is forecast to increase tradewinds overnight
Tuesday. By Wednesday morning, southeasterly winds may reach up to
around 30 mph. These winds are forecast for the rest of the week
and the weekend. Gusty winds will likely occur near rainfall.
From mid to late week, we are monitoring the potential of a trough
from the north moving over the islands. If this trough moves over
the islands, there is the potential for more consistent rainfall
with the breezy tradewinds and elevate winds further. We will
continue to monitor this timeframe throughout the week.

&&

.Marine...

As trade winds decrease and no significant swell is moving over
the American Samoa coastal waters, seas are below Small Craft
Advisory levels. Seas are anticipated to remain around 5 feet
through early Tuesday morning.

However, adverse conditions are expected from the middle of the
week through the weekend. South/southeasterly trade winds are to
increase throughout the day on Tuesday to reach up to a fresh
breeze by the evening. By Wednesday, a strong southeasterly breeze
(up to around 25 knots) with higher gusts in showers are expected.
This breeze is forecast to remain through the weekend. Also, a
long period southerly swell is to move through the American Samoa
coastal waters on Wednesday. This is forecast to elevate seas up
to 16 feet by Thursday morning. Surf is very likely to be in
warning levels during this time with the highest surf along the
southern coasts of American Samoa.

This is graduation week for all high schools in American Samoa. If
you currently have any plans for swimming activities along the
coasts or boating activities from mid to late this week, we
highly suggest altering your plans as conditions are expected to
dangerous during this time.

&&

.PPG WATCHES/WARNINGS/ADVISORIES...

NONE

&&

$$

LaPlante