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 >

985
FXZS60 NSTU 310040
AFDPPG

Area Forecast Discussion
National Weather Service Pago Pago AS
140 PM SST Mon Mar 30 2026

.DISCUSSION...
Mostly cloudy skies with scattered to numerous showers was
observed throughout the day. These conditions are supported by the
latest satellite imageries and the upper air observations (RAOB)
from this afternoon (31/00Z). A conditionally stable atmospheric
profile conducive of potential instability within the next couple
of hours is likely. Model data show the trough lingering in the
area, as a ridge to the east-northeast continues to build. More
showers and possible thunderstorms is expected for tonight through
Tuesday. By midweek, the aforementioned ridge will dominate
weather patterns for the rest of the forecast period.

Therefore, expect numerous to widespread showers with a moderate
north-northwest wind to remain for tonight through Tuesday night.
Showers will decrease to isolated and scattered, as winds become
light and variable on Wednesday through the end of the forecast
period.

&&

.Marine...
Observations from the PacIOOS buoys show a downward trend of
seas in the area. Seas of 7 to 9 feet is gradually subsiding to
more favorable conditions. However, with the trough lingering
over the area, thunderstorms embedded will likely elevate seas and
winds nearby for tonight and Tuesday, before subsiding further
through at least Friday. By Friday night, model data shows a large
south swell moving into the area, potentially building seas and
surfs for this time frame. Thus, the advisory for small crafts
will remain in effect through Tuesday, while the advisory for high
surfs will likely be cancelled by tonight.

&&

.PPG WATCHES/WARNINGS/ADVISORIES...

High Surf Advisory
Small Craft Advisory
Flood Watch

&&

$$

JTAllen