National Weather Service United States Department of Commerce

FXZS60 NSTU 210056

Area Forecast Discussion
National Weather Service Pago Pago AS
156 PM SST Tue Feb 20 2018

.Short term...
TONIGHT THROUGH THURSDAY NIGHT...Active trough to the northeast
will bring heavy showers and thunderstorms across the territory on
Thursday and Thursday night. However for now, RAOB from this
afternoon depicts a stable and dry profile over the islands. With
the active trough moving across the islands, gentle northeast
winds will strengthen to breezy north and gusty winds. Therefore
expect wet and windy weather to enter the territory starting late

.Long term...
FRIDAY THROUGH TUESDAY...The aforementioned trough will pass
southwest of the islands on Friday night. A ridge following from
behind will keep winds to breezy flow through the new week.
However, stable weather will move across the islands on Friday


Seas of 5 to 7 ft will persist through Wednesday before elevating
above advisory levels on Wednesday night 6 to 8 ft. As the active
trough moves across the islands, seas will rise 8 to 10 ft on
Thursday through Friday afternoon. The trough will move southwest
and seas will subside 6 to 8 ft on Friday night and remain through
the rest of the forecast period.