American Samoa's Tropical Cyclone Outlook 2025-26

Below Normal to Near Normal Tropical Cyclone (TC) Activity anticipated for American Samoa in the 2025-26 TC Season Read More >

832
FXZS60 NSTU 030130
AFDPPG

Area Forecast Discussion
National Weather Service Pago Pago AS
230 PM SST Mon Mar 2 2026

.Short term...

Mostly sunny skies remained over the American Samoa islands
throughout the morning and early afternoon hours as an elongated
ridge of high pressure brought drier than usual air over the
region. Satellite imagery as of early this afternoon shows
increasing clouds moving over the territory, which will increase
the odds of a passing shower to scattered (40% chance) for the
overnight hours.

East/southeasterly winds are forecast to increase up to around 20
mph as a trough from the east moves closer to the region. The risk
of passing showers remains scattered with a fair mix of sun and
clouds throughout the day on Tuesday.

.Long term...

By Wednesday, the aforementioned trough is forecast to move over
the islands to increase the odds of rainfall to scattered to
numerous (50 to 60% risk). Heavy rainfall and flash flooding is
not expected. The trough is anticipated to weaken and winds are
to become a light northeasterly breeze for Thursday through the
weekend with scattered showers.

Overall, rainfall is forecast to be below average for this week.
There is no risk of tropical development over the islands.

&&

.Marine...

Seas eased throughout the day as easterly winds decreased to a
gentle breeze. However, as winds increase to a fresh breeze
throughout the day Tuesday and Tuesday night, this will likely
build seas to at least close to Small Craft Advisory conditions.
Winds are to decrease for the rest of the week. A south/southwest
swell is to move through the territorial waters on Thursday and
Friday to give less choppy waters than usual in open waters, but
approaching High Surf Advisory conditions along the west/southerly
shores.

&&

.PPG WATCHES/WARNINGS/ADVISORIES...

NONE

&&

$$

LaPlante