Area Forecast Discussion
Issued by NWS Pago Pago

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FXZS60 NSTU 270051
AFDPPG

AREA FORECAST DISCUSSION FOR AMERICAN SAMOA AND INDEPENDENT SAMOA
NATIONAL WEATHER SERVICE PAGO PAGO AS
151 PM SST TUE MAY 26 2015

.SHORT TERM...
TONIGHT THROUGH THURSDAY NIGHT...A WEAK SURFACE RIDGE NEAR THE
SAMOAN ISLANDS WILL CONTINUE TO BRING FAIR WEATHER ACROSS THE
ISLAND CHAIN THROUGH AT LEAST MIDWEEK. LATEST MODEL SOLUTIONS SHOW
A DEVELOPING SURFACE TROUGH NORTHEAST OF THE TERRITORY BRINGING AN
INCREASE IN CLOUDS AND SHOWERS ACROSS THE ISLANDS TOWARD THE
LATTER PART OF THE SHORT TERM. HENCE...WILL SLIGHTLY ADJUST THE
FORECAST TO REFLECT THE INCREASE IN PROBABILITY OF PRECIPITATION
AND CLOUDS.

LIGHT TO FRESH EASTERLIES WILL REMAIN ACROSS THE ISLANDS THROUGH
THE SHORT TERM AS A STRONG HIGH PRESSURE SYSTEM NEAR NEW ZEALAND
MIGRATES EAST SLOWLY.

.LONG TERM...
FRIDAY THROUGH TUESDAY...THE AFOREMENTIONED SURFACE TROUGH IS
EXPECTED TO LINGER NEAR THE SAMOAN ISLANDS AND MERGE WITH A WEAK
DEVELOPING LOW PASSING FAR SOUTH OF THE TERRITORY. THIS TROUGH
WILL CONTINUE THE BOUTS OF SHOWERS FOR AMERICAN SAMOA. WITH THE
TROUGH REMAINING NEARLY STATIONARY NEAR THE TERRITORY...THE WINDS
WILL BECOME PRIMARILY LIGHT AND VARIABLE.

&&

.MARINE...
A LARGE SOUTHERLY SWELL IS BUILDING ACROSS COASTAL WATERS OF
AMERICAN SAMOA TONIGHT AND PEAKING THURSDAY THROUGH FRIDAY BEFORE
IT STARTS TRENDING DOWNWARDS. COMBINED WITH MODERATE TO FRESH
EASTERLIES FORECASTED FOR THE REMAINDER OF THE WEEK...WILL
CONTINUE THE ADVISORY FOR SMALL CRAFTS AND ISSUE THE ADVISORY FOR
HIGH SURF STARTING TONIGHT.

&&

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

&&

$$

LUTU-MCMOORE





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