Area Forecast Discussion
Issued by NWS Pago Pago

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000
FXZS60 NSTU 300058
AFDPPG

AREA FORECAST DISCUSSION FOR AMERICAN SAMOA AND INDEPENDENT SAMOA
NATIONAL WEATHER SERVICE PAGO PAGO AS
158 PM SST TUE JUL 29 2014

.SHORT TERM...
TONIGHT THROUGH THURSDAY NIGHT...SATELLITE IMAGERIES SHOW AN
ACTIVE TROUGH LINGERING OVER THE ISLANDS. ASCAT SWATHS FROM LAST
NIGHT AND THIS MORNING REVEALED THE TROUGH AXIS OSCILLATING OVER
THE ISLANDS. OBSERVATIONS DURING THE PERIOD INDICATED LIGHT AND
VARIABLE WINDS LAST NIGHT AND GRADUALLY INCREASED TO STRONG AND
GUSTY TRADES. RAOB FROM THIS AFTERNOON DEPICTS AN UNSTABLE PROFILE
WITH THUNDERSTORMS WITHIN THE VICINITY. MODELS SUGGEST THAT THE
TROUGH AXIS WILL CONTINUE TO OSCILLATE OVER THE ISLANDS DURING THE
SHORT TERM. WINDS ARE AGAIN EXPECTED TO GRADUALLY DIMINISH TO
BREEZY CONDITIONS ON WEDNESDAY AFTERNOON. HOWEVER...WET WEATHER
AND BREEZY TO STRONG TRADES WILL PERSIST IN THE NEXT FEW DAYS.

.LONG TERM...
FRIDAY THROUGH TUESDAY...ANOTHER HIGH TO THE SOUTH WILL GENERATE
STRONG AND GUSTY TRADES ON FRIDAY NIGHT AND THE REST OF THE FCST.
UNSTABLE WEATHER WILL PERSIST THROUGH THE NEW WEEK. THEREFORE WILL
AMEND THE PREVIOUS FCST TO REFLECT THE CURRENT CONDITIONS AND
MODEL OUTPUTS.

&&

.MARINE...
HAZARDOUS SEAS OF 9 TO 12 FT WILL CONTINUE TO IMPACT COASTAL
WATERS AND SOUTHERN SHORELINES IN THE NEXT FEW DAYS. ANOTHER SET
OF STRONG SWELLS FROM THE SOUTH IS EXPECTED TO BUILD SEAS 13 TO 15
FT ON SATURDAY. FOR NOW...HSA AND SCA REMAINS IN EFFECT.

&&

.PPG WATCHES/WARNINGS/ADVISORIES...
HIGH SURF ADVISORY REMAINS IN EFFECT.
SMALL CRAFT ADVISORY REMAINS IN EFFECT.

&&

$$

MALALA









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