Area Forecast Discussion
Issued by NWS Pago Pago

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FXZS60 NSTU 260043
AFDPPG

AREA FORECAST DISCUSSION FOR AMERICAN SAMOA AND INDEPENDENT SAMOA
NATIONAL WEATHER SERVICE PAGO PAGO AS
143 PM SST SUN JUN 25 2017

.SHORT TERM...
TONIGHT THROUGH TUESDAY NIGHT...LATEST SATELLITE IMAGERY SHOW A
BROAD AREA OF DRY WEATHER WITH VERY FEW CUMULI AROUND THE FORECAST
AREA. THIS IS EVIDENT WITH A LARGE AREA OF SUBSIDENCE ACROSS THE
SAMOAN ISLANDS. CURRENT MODEL DATA SHOW THIS FAIR WEATHER THROUGH
TONIGHT UNTIL EARLY MONDAY MORNING...THEN AN UPWARD TREND IN
CLOUDS AND SHOWERS ARE SEEN THEREAFTER AS A SURFACE TROUGH NEARS
THE AREA FROM THE NORTH.

GENTLE TO MODERATE EASTERLIES WILL REMAIN ACROSS THE FORECAST AREA
THROUGH THE SHORT TERM.

.LONG TERM...
WEDNESDAY THROUGH SUNDAY...LATEST MODEL SOLUTIONS SHOW A HIGH
PRESSURE SYSTEM FAR SOUTHWEST USHERING MODERATE TO FRESH TRADES BY
THURSDAY AS THE HIGH MIGRATES EASTWARD. HENCE...EXPECT THE RETURN
OF TRADES TOWARD THE LONG TERM WITH EMBEDDED SHOWERS IN THE TRADE
FLOW.

&&

.MARINE...
SEAS AND WINDS ARE FORECAST TO REMAIN BELOW ADVISORY THRESHOLDS
THROUGH AT LEAST MIDWEEK. HENCE...WE ANTICIPATE NO ADVISORIES FOR
COASTAL WATERS THROUGH AT LEAST WEDNESDAY.

&&

.PPG WATCHES/WARNINGS/ADVISORIES...
NONE

&&

$$

LUTU-MCMOORE





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