Area Forecast Discussion
Issued by NWS Pago Pago

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FXZS60 NSTU 210125

Area Forecast Discussion
National Weather Service Pago Pago  AS
225 PM SST Sun Sep 20 2020

.Short term...
TONIGHT THROUGH TUESDAY NIGHT...A surface trough to the southwest
will remain nearly stationary in the next couple of days.
Satellite shows scattered convections and showers over the island
chain expanded from the system. Observations from across the
islands are now reporting sustain gentle southeast winds. Models
suggest that a weak low is currently developing over Fiji and then
slowly drives southeast. With this movement, showers are expected
to remain and increase across the islands at times in the next
couple of days. As the low moves southeast tomorrow, winds will
diminish to light and variable on Monday night.

.Long term...
WEDNESDAY THROUGH SUNDAY...The aforementioned trough will continue
southeast pulling most of the moisture along. High pressure to the
far southwest will introduce gentle trades across the islands on
Thursday before slightly elevating the flow to breezy on Friday.
Stable weather will remain through the weekend.


Seas of 5 to 7 ft will persist through the week. No significant
swells are expected to move across the area. Models suggest a
slight rise of the seas above advisory levels on the weekend due
to breezy trades.





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