Area Forecast Discussion
Issued by NWS Pago Pago

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FXZS60 NSTU 230132 CCA

Area Forecast Discussion...CORRECTED
National Weather Service Pago Pago  AS
232 PM SST Mon Jan 22 2018

.Short term...
TONIGHT THROUGH WEDNESDAY NIGHT...An active surface trough will
remain across the Samoan Islands through tonight before moving
south Tuesday morning. This trough will likely continue to bring
numerous to occasssional showers with embedded thunderstorms
through tonight. Expect a break in showers Tuesday before another
episode of showers reach the area Tuesday night. Latest satellite
imageries show convective clouds lingering to the north and
across the Samoan area through tonight. These convective clouds
will likely continue to produce isolated thunderstorms embedded in
showers. A ridge to the northeast will continue to move over the
islands Tuesday and will transport gentle to moderate easterlies
through the midweek. Therefore...expect wet and breezy conditions
to persist through Wednesday. A flash flood watch is in effect
until Tuesday morning.

.Long term...
THURSDAY THROUGH MONDAY...The high pressure system to the south
will continue to transport gentle to moderate easterlies with
embedded scattered to numerous showers through the end of the
week. Another surface trough will develop along the Samoan Islands
Thursday. This trough will likely bring in more showers through
the new week. Expect easterlies to become variable in the latter
part of the long term forecast.


Latest Wave Watch III model solutions show sea heights of 5 to 7
feet through Wednesday night before subsiding further to 4 to 6
feet Thursday. PacIOOs Aunu`u Wave buoy data also show heights
below 7 feet. Therefore...expect no significant swells to reach
the islands throughout the week.


.A small craft advisory is cancelled...
.A flash flood watch is in effect...



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