Area Forecast Discussion
Issued by NWS Pago Pago

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FXZS60 NSTU 190044

Area Forecast Discussion
National Weather Service Pago Pago  AS
144 PM SST Sun Feb 18 2018

.Short term...
TONIGHT THROUGH TUESDAY NIGHT...Low convections continue to spread
scattered showers across the Tutuila and Manua through tonight.
RAOB from this afternoon depicts a dry mid to upper levels but a
conditional unstable profile. The line of convections will
continue to push up north on Monday, reducing showers to isolated
across the territory. Expect scattered showers tonight subsiding
to isolated on Monday and the rest of the short term. Winds will
remain light and variable.

.Long term...
WEDNESDAY THROUGH SUNDAY...As the active trough to the northeast
moves across the islands, showers will again increase to scattered
on Wednesday night and becoming numerous on Thursday through
Friday. The aforementioned trough will continue southwest on
Friday night as the ridge builds to the southeast. Winds will turn
east by Saturday morning with gentle flow.


Seas of 5 to 7 ft will persist through Wednesday. As the active
trough up northeast approaches, seas will gradually elevate 6 to 8
ft on Wednesday night before rising 8 to 10 ft on Thursday
morning. Seas are expected to fall below advisory levels on
Saturday morning.





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