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 >

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FXZS60 NSTU 070117
AFDPPG

Area Forecast Discussion
National Weather Service Pago Pago AS
217 PM SST Fri Mar 6 2026

.Short term...
[Tonight through Saturday night]...Latest satellite loops show
convection associated with a trough, gradually diminishing through
the day. The upper air sounding from this afternoon reflects this
trend as moisture and instability have become more stable
compared to the sounding from last night. However, showers may
continue to develop in the area for as long as the trough
persists. Expect the trough to linger over the Samoa Islands
through Saturday, before gradually diminishing Saturday night as
it weakens. Hence, numerous showers and North winds of 10 to 15
mph will hold through Saturday night.

.Long term...
[Sunday through Friday]...By Sunday an east breeze will prevail
across the region. A ridge from a dominant high pressure system
to the east is forecast to hold easterly trades up to around 20
mph with passing showers. Expect these conditions to remain
through the end of the forecast period.

&&

.Marine...
A high surf advisory was issued this afternoon due to south swells
impacting south facing shores. The PacIOOS buoy reported wave
heights near 8 feet with peak periods up to 13 seconds. These
observations indicate surfs over 10 feet, and possible strong rip
currents. However, as swells subside Saturday, expect surfs to
also diminish in the area.

Easterly tradewinds may produce textured seas for the new week.
However, ocean conditions are expected to remain below advisory
thresholds.

&&

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

&&

$$

TM