Area Forecast Discussion
Issued by NWS Pago Pago

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000
FXZS60 NSTU 240042
AFDPPG

AREA FORECAST DISCUSSION FOR AMERICAN SAMOA AND INDEPENDENT SAMOA
NATIONAL WEATHER SERVICE PAGO PAGO AS
142 PM SST SUN APR 23 2017

.SHORT TERM...
TONIGHT THROUGH TUESDAY NIGHT...LATEST VISIBLE SATELLITE SHOW
BANDS OF SHOWERS UPSTREAM. THESE SHOWERY CLOUDS ARE FORECAST TO
MOVE ACROSS THE SAMOAN ISLANDS THROUGH TONIGHT AS THE ASSOCIATED
TROUGH LINGERS NEAR THE AREA. LATEST MODEL DATA SHOW ANOTHER BOUT
OF SHOWERS BY LATE MONDAY NIGHT AS ANOTHER TROUGH MOVES CLOSER TO
THE TERRITORY FROM THE EAST.

GENTLE TO MODERATE EASTERLIES WILL BECOME MORE LIGHT AND VARIABLE
BY TUESDAY MORNING.

.LONG TERM...
WEDNESDAY THROUGH SUNDAY...LATEST MODEL SOLUTIONS SHOW A SURFACE
RIDGE BUILDING NEAR MANU`A WEDNESDAY...PUSHING THE AFOREMENTIONED
TROUGH WESTWARD. HOWEVER...THIS RIDGE IS FORECAST TO MOVE EASTWARD
WITH THE ASSOCIATED HIGH PRESSURE BY THURSDAY. THUS...ALLOWING THE
TROUGH TO MOVE BACK ACROSS THE TERRITORY TOWARD THE LATTER PART OF
THE LONG TERM. FOR NOW...SINCE THIS SCENARIO IS STILL BEYOND DAY
THREE...WE WILL CONTINUE TO MONITOR AND MAKE ADJUSTMENTS AS
CONFIDENCE AND CONSISTENCIES INCREASE.

&&

.MARINE...
ALTHOUGH WINDS HAVE DWINDLED TO BELOW ADVISORY CRITERIA...COASTAL WATERS WILL
CONTINUE TO BE IMPACTED BY HAZARDOUS SEAS THROUGH TUESDAY
AFTERNOON. HENCE...WE WILL CONTINUE THE ADVISORIES FOR HIGH SURFS
AND SMALL CRAFTS AS PREVIOUSLY ADVISED. BY MIDWEKK...BOTH WINDS
AND SEAS ARE EXPECTED TO REMAIN BELOW ADVISORY THRESHOLDS THROUGH
THE REMAINDER OF THE FORECAST PERIOD.

&&

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

&&

$$

LUTU-MCMOORE





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