Area Forecast Discussion
Issued by NWS Pago Pago

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FXZS60 NSTU 250048

Area Forecast Discussion
National Weather Service Pago Pago  AS
148 PM SST Mon Jul 24 2017

.Short term...
TONIGHT THROUGH WEDNESDAY NIGHT...Surface trough to the southwest
will remain nearly stationary and deepen tonight and Tuesday. RAOB
from this afternoon depicts a very stable profile. The surface
trough will move east on Tuesday night. Hence, winds will remain
light and variable through Tuesday night. A ridge extending from
the west to south of the islands will generate gentle trades on
Wednesday morning. Therefore, expect isolated showers and variable
winds during the short term except for Wednesday with gentle

.Long term...
THURSDAY THROUGH MONDAY...Strong high pressure to the southwest
will enhance trades across the islands to breezy and gusty
conditions on Thursday. Scattered showers will spread during the
gusty tradewind flow. As the high pressure migrate farther east
trades will shift to the east on Friday. A surface trough
associated with a low to the south will move across the islands on
Saturday night. Another strong high pressure from the far
southwest will again generate gentle trades on Sunday. Trades are
expected to increase across the islands to strong and gusty winds
on Monday. A shearline will remain over the islands as the surface
trough moves eastward on Sunday.


Aunuu buoy shows seas of 7 to 9 ft in the last several hours. Seas
will subside below advisory levels early Tuesday morning. With
breezy trades again moving across the territory, rough seas will
once more rise on Thursday.


High surf advisory remains in effect until 3 am Tuesday.
Small craft advisory remains in effect until 3 am Tuesday.



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