Area Forecast Discussion
Issued by NWS Pago Pago

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FXZS60 NSTU 220054

Area Forecast Discussion
National Weather Service Pago Pago  AS
154 PM SST Tue Nov 21 2017

.Short term...
TONIGHT THROUGH THURSDAY NIGHT...Scattered convections over the
islands and up north continue to ride along the easterly flow.
This ongoing moisture flow will persist through Tuesday afternoon.
RAOB from this afternoon depicts an unstable profile. Convections
will be suppressed on Tuesday night as the surface trough to the
far south slowly moves up north. Scattered showers will move over
the islands on Wednesday night.

.Long term...
FRIDAY THROUGH TUESDAY...Increase in showers will occur on Friday
morning as the active trough moves near the islands. A midlevel
ridge extending from the east will push the trough and showers
southwest on Sunday night. However, these easterly flows will
again bring scattered showers over the islands on Tuesday.


Seas of 4 to 6 ft will persist tonight through Saturday. North
swells will build seas above advisory levels on Saturday night and
persist through the rest of the forecast.





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