Area Forecast Discussion
Issued by NWS Pago Pago

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000
FXZS60 NSTU 010116
AFDPPG

AREA FORECAST DISCUSSION FOR AMERICAN SAMOA AND INDEPENDENT SAMOA
NATIONAL WEATHER SERVICE PAGO PAGO AS
216 PM SST THU JUL 31 2014

.SHORT TERM...
TONIGHT THROUGH SATURDAY NIGHT...SATELLITE IMAGERIES SHOW A TROUGH
NEAR SOUTH OF THE ISLANDS AND IS SLOWLY MOVING NORTHEAST. RAOB
FROM THIS AFTERNOON DEPICTS A CONDITIONAL UNSTABLE PROFILE. STRONG
HIGH TO THE SOUTH CONTINUES TO STRENGTHEN AS IT REMAINS NEARLY
STATIONARY. A STEEP PRESSURE GRADIENT BETWEEN THE TROUGH AND THE
HIGH HAS GENERATED STRONG AND GUSTY TRADES. THESE TRADES ARE
EXPECTED TO MOVE OVER THE ISLANDS LATE TONIGHT AND GRADUALLY
INTENSIFY THROUGH SATURDAY. NUMEROUS SHOWERS WILL PERSIST DURING
THE SHORT TERM. THEREFORE...EXPECT WET WEATHER AND STRONG TRADES
IN THE NEXT FEW DAYS.

.LONG TERM...
SUNDAY THROUGH THURSDAY...THE HIGH IS EXPECTED TO MOVE SOUTHEAST
ON SUNDAY WHILE THE TROUGH REMAINS TO THE FAR EAST. TRADES WILL
GRADUALLY DIMINISH TO BREEZY CONDITIONS ON MONDAY MORNING. SOME
MODELS ARE BRINGING REMNANTS OF THE TROUGH OVER THE ISLANDS LATE
DURING THE WEEK. HOWEVER...WILL KEEP THE PREVIOUS FCST FOR NOW AND
WAIT FOR A FEW MORE MODELS RUN BEFORE MAKING ANY CHANGES TO THE
FCST.

&&

.MARINE...
HAZARDOUS SEAS OF 10 TO 13 FT WILL BUILD 13 TO 15 FT ON SATURDAY
MORNING. SEAS ARE EXPECTED TO SUBSIDE 10 TO 13 FT ON MONDAY.
LATEST MODELS ARE HINTING SEAS TO SUBSIDE BELOW ADVISORY LEVELS ON
WEDNESDAY. THEREFORE...HIGH SURF ADVISORY AND SMALL CRAFT ADVISORY
REMAIN IN EFFECT.

&&

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

&&

$$

MALALA






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