Area Forecast Discussion
Issued by NWS Pago Pago

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FXZS60 NSTU 180048

Area Forecast Discussion
National Weather Service Pago Pago  AS
148 PM SST Fri Aug 17 2018

.Short term...
TONIGHT THROUGH SUNDAY NIGHT...A surface trough over the islands
will continue to linger through Saturday night. RAOB from this
afternoon depicts an unstable profile. The surface trough will
move up northeast on Sunday morning as the high pressure to the
west moves south of the islands. Remnants from the trough will
pass over the islands on Sunday night. Expect a wet weekend and
gentle trades starting on Sunday morning.

.Long term...
MONDAY THROUGH FRIDAY...Remnants will remain through Monday
night. A ridge associated with high pressure will migrate south
on Tuesday. The ridge will hold stable weather through Wednesday
night. A shortwave trough to the east will again elevate showers
to scattered on Thursday morning and the rest of the new week.


Seas of 5 to 7 ft will persist tonight and the weekend. A
southwest swell will elevate seas above advisory levels on
Thursday morning. Seas will later subside below advisory levels
on Friday morning.





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