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 >

747
FXZS60 NSTU 170056
AFDPPG

Area Forecast Discussion
National Weather Service Pago Pago AS
156 PM SST Mon Mar 16 2026

.Short term...
Dry conditions with a gentle east breeze continue across the
islands. This pattern is evident in the latest satellite imagery,
which shows fair-weather cumulus clouds passing through the area.
In addition, the upper-air sounding from this afternoon indicates
a dry atmospheric profile that is trending toward more stable
conditions. A mid-level high pressure system continues suppress
shower development, allowing isolated to scattered showers to
persist through Tuesday. East winds of 10 to 15 mph may decrease
to a predominantly light east breeze through the remainder of the
week.

.Long term...
The mid-level high pressure will slightly weaken through
Wednesday, allowing for an uptick in showers during this time.
However, as the high strengthens again on Thursday, expect
for the remainder of the forecast period. Although the territory
is currently experiencing temperatures in the 90s, heat advisory
levels could be reached by the weekend as the high pressure
strengthens. However, confidence remains low in this scenario

&&

.Marine...
Seas have subsided below advisory levels and continue within the 5
to 7 foot range. Latest model trends hold calm ocean conditions
through Wednesday before a south swell passes through the area.
Although rip currents and surfs may be evident near-shore by
midweek, seas are expected to be mostly flat due to light winds.

.PPG WATCHES/WARNINGS/ADVISORIES...
None

&&

$$

TM