National Weather Service United States Department of Commerce

FXZS60 NSTU 220058

Area Forecast Discussion
National Weather Service Pago Pago AS
158 PM SST Mon Jan 21 2019

.Short term...
TONIGHT THROUGH WEDNESDAY NIGHT...A surface trough to the south
is slowly moving south southeast. Satellite shows scattered
convections and showers in the vicinity. RAOB from this afternoon
also shows a conditional unstable profile. Scattered will remain
across the islands tonight before becoming isolated on Tuesday and
Tuesday night. Another trough will develop north of the islands
on Tuesday night before moving across on Wednesday morning. With
the trough to the south and another one over the islands on
Wednesday, winds will remain light and variable. Expect scattered
showers for the short term expect for Tuesday and Tuesday night
with isolated.

.Long term...
THURSDAY THROUGH MONDAY...Scattered showers will continue through
Friday night. However, showers will increase to numerous on
Saturday as the trough to the south moves across the islands.


Seas of 4 to 6 ft will persist tonight through Wednesday night.
Models are now hinting that seas will slightly rise 5 to 7 ft and
persist through the weekend.