FXZS60 NSTU 060009

AFDPPG



Area Forecast Discussion

National Weather Service Pago Pago  AS

109 PM SST Tue May 5 2026



.Short term...



Satellite imagery has shown decreasing clouds throughout the

overnight hours and this morning as a trough begins to move away

from American Samoa. A developing low pressure system to the east

of Fiji is to bring the trough further to the south through

Wednesday. The risk of rainfall continues to decrease. 

North/northwesterly winds remain in the forecast through tomorrow.

Wind speeds are forecast to increase tonight and early Wednesday 

to reach up to 15 mph, but up to 20 mph along the higher 

elevations and the Pago Pago Harbor region. 



As the aforementioned low pressure system strengthens as it moves

further away from the area, the trough will move further away as

well. This is forecast to decrease winds to light and varable

for Wednesday night through Friday morning. If showers develop, 

rainfall is not expected to be heavy enough to cause flash 

flooding. Otherwise, a mix of sun and clouds are anticipated with 

temperatures slightly above average.



.Long term...



For the weekend, a weak ridge of high pressure from the southwest

moves over the islands. This is forecast to generate a

east/southeasterly tradewinds reaching up to around 15 mph. This

is expected to give below average rainfall and above average

temperatures. Confidence is high that severe weather is not

anticipated for the weekend and into early next week.



&&



.Marine...



Seas remain more elevated than expected this morning and early

this afternoon. The PacIOOS buoy recorded seas remaining just

below 10 feet throughout the morning, which prompted the High Surf

Advisory to be posted through the overnight hours as the strength

of the south swell remains high enough to maintain surf within the

High Surf Advisory levels along the southern shores. Seas remain 

rough due to the swell combined with the northwesterly wind waves.



The strength of the southerly swell is forecast to decrease

throughout the overnight hours to produce surf below advisory

levels. Northwesterly winds are to also slowly decrease 

throughout the day. This will lead to easing seas throughout the 

American Samoa coastal waters during the day Wednesday and ideal 

conditions are forecast through the rest of the week as winds 

become light and variable along with southerly swell not being as 

strong compared to today.



&&



.PPG WATCHES/WARNINGS/ADVISORIES...



A High Surf Advisory remains in effect through Wednesday morning.

A Small Craft Advisory remains in effect.



&&



$$



LaPlante