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000
FXZS60 NSTU 190131
AFDPPG

AREA FORECAST DISCUSSION FOR AMERICAN SAMOA AND INDEPENDENT SAMOA
NATIONAL WEATHER SERVICE PAGO PAGO AS
231 PM SST SAT APR 18 2015

.SHORT TERM...
.TONIGHT THROUGH MONDAY NIGHT...A DEVELOPING SURFACE TROUGH TO THE SOUTH
WILL ENHANCE CLOUDS AND SCATTERED SHOWERS TO MOVE ACROSS TUTUILA EASTWARD
DURING MONDAY. THE LATEST GFS MODEL RESOLUTION SHOWS MODERATE TO FRESH
TRADE-WINDS DURING TONIGHT AND SUNDAY MORNING. LOCAL WIND SPEED WILL
DIMINISH TO NEAR 10 TO 15 KT SUNDAY AFTERNOON BEFORE BECOMING LIGHT
AND VARIABLE UP TO 10 KT SUNDAY NIGHT.

.LONG TERM...
.TUESDAY THROUGH SATURDAY...A SURFACE TROUGH FROM THE SOUTHWEST OF
THE REGION WILL ADVANCE TOWARD THE SAMOAN ISLANDS DURING TUESDAY
NIGHT INTO WEDNESDAY. FOR NOW...WILL MONITOR THIS SITUATION BEFORE
UPDATING THE PREV FCST. THEREFORE...ANTICIPATE MINIMAL SHOWERS
EXCEPT FOR SCATTERED LIGHT SHOWERS DURING THE AFTERNOONS ACROSS THE
FCST ZONES.

&&

.MARINE...LARGE TRADE-WIND GENERATED SEAS AND SWELLS WILL CONTINUE
TO PRODUCE HAZARDOUS SWELLS AND SURFS UP TO 10 TO 12 FEET PEAKING
TO NEAR 14 FEET TONIGHT. SEAS WILL GRADUALLY SUBSIDE DURING SUNDAY
NIGHT TO NEAR 7 TO 8 FEET. HOWEVER...ISSUANCE OF ADVISORIES FOR
SMALL CRAFTS AND HIGH SURFS ARE MANDATORY TO REFLECT THE EXISTING
MARINE WEATHER.

&&

.PPG WATCHES/WARNINGS/ADVISORIES...
.A SMALL CRAFT ADVISORY.
.A HIGH SURF ADVISORY.

&&

$$

BAQUI









000
FXZS60 NSTU 180120
AFDPPG

AREA FORECAST DISCUSSION FOR AMERICAN SAMOA AND INDEPENDENT SAMOA
NATIONAL WEATHER SERVICE PAGO PAGO AS
220 PM SST FRI APR 17 2015

.SHORT TERM...
.TONIGHT THROUGH SUNDAY NIGHT...A TRADE-WIND REGIME COMBINED WITH
A MID-LEVEL TROUGH UPSTREAM WILL ENHANCE SCATTERED TO NUMEROUS SHOWERS
TO MOVE ACROSS THE AREA THROUGH SATURDAY NIGHT. HOWEVER...CLOUDS
AND NUMEROUS SHOWERS WITH ISOLATED TSTMS OCCURRING TO THE NORTH OF
THE SAMOAN ISLANDS WILL ENTER THE FCST ZONES BEFORE SUNSET TONIGHT.
AS A RESULT...ANTICIPATE MODERATE TO FRESH TRADE-WINDS TO DIMINISH
TO NEAR 10 TO 15 KT STARTING SUNDAY MORNING.

.LONG TERM...
.MONDAY THROUGH FRIDAY...A WEAK SURFACE TROUGH WILL PASS TO THE SOUTH
OF THE AREA THROUGH THE MIDWEEK HENCE SCATTERED TO NUMEROUS SHOWERS
AND POSSIBLE TSTMS WILL DRIFT TOWARD THE SAMOAN ISLANDS STARTING TUESDAY
EVENING. THIS WILL ALLOW LOCAL WINDS TO BECOME LIGHT AND VARIABLE
UP TO 10 KT OVER THE NEXT SEVERAL DAYS.

&&

.MARINE...LARGE TRADE-WIND GENERATED SEAS AND SWELLS OF 10 TO 12 FEET
WILL PRODUCE HAZARDOUS SURFS THROUGH SATURDAY NIGHT. ISSUANCE OF HIGH
SURF AND SMALL CRAFT ADVISORIES ARE MANDATORY TO REFLECT THIS SITUATION.
SEAS WILL GRADUALLY SUBSIDE TO NEAR 5 TO 7 FEET DURING SUNDAY.

&&

.PPG WATCHES/WARNINGS/ADVISORIES...
.A HIGH SURF ADVISORY.
.A SMALL CRAFT ADVISORY.

&&

$$

BAQUI









000
FXZS60 NSTU 170059
AFDPPG

AREA FORECAST DISCUSSION FOR AMERICAN SAMOA AND INDEPENDENT SAMOA
NATIONAL WEATHER SERVICE PAGO PAGO AS
159 PM SST THU APR 16 2015

.SHORT TERM...
TONIGHT THROUGH SATURDAY NIGHT...SATELLITE IMAGERIES SHOW A WEAK
SURFACE TROUGH TO THE NORTH AND A HIGH PRESSURE TO THE SOUTH. RAOB
FROM THIS AFTERNOON DEPICTS DRY AND STABLE PROFILE WITH AN
INVERSION AT THE LOWER LEVELS. MODELS ARE DEVELOPING ANOTHER
SURFACE TROUGH TO THE SOUTH IN WHICH WILL ENHANCE SHOWERS ON
SATURDAY. GENTLE EAST WINDS WILL DIMINISH TO LIGHT AND VARIABLE ON
SATURDAY. THEREFORE WILL MAKE A FEW AMENDMENTS TO THE PREVIOUS
FCST.

.LONG TERM...
SUNDAY THROUGH THURSDAY...THE SURFACE TROUGH TO THE SOUTH WILL
AGAIN OSCILLATE ACROSS THE ISLANDS ON TUESDAY. WILL KEEP THE
PREVIOUS WHILE MONITORING A FEW MORE MODEL RUNS.

&&

.MARINE...
STRONG SOUTHERLY SWELLS WILL CONTINUE TO ELEVATE SEAS TO HAZARDOUS
CONDITIONS TONIGHT THROUGH SUNDAY MORNING. HIGH SURF ADVISORY AND
SMALL CRAFT ADVISORY REMAINS IN EFFECT THROUGH SUNDAY MORNING.

&&

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

&&

$$

MALALA








000
FXZS60 NSTU 170059
AFDPPG

AREA FORECAST DISCUSSION FOR AMERICAN SAMOA AND INDEPENDENT SAMOA
NATIONAL WEATHER SERVICE PAGO PAGO AS
159 PM SST THU APR 16 2015

.SHORT TERM...
TONIGHT THROUGH SATURDAY NIGHT...SATELLITE IMAGERIES SHOW A WEAK
SURFACE TROUGH TO THE NORTH AND A HIGH PRESSURE TO THE SOUTH. RAOB
FROM THIS AFTERNOON DEPICTS DRY AND STABLE PROFILE WITH AN
INVERSION AT THE LOWER LEVELS. MODELS ARE DEVELOPING ANOTHER
SURFACE TROUGH TO THE SOUTH IN WHICH WILL ENHANCE SHOWERS ON
SATURDAY. GENTLE EAST WINDS WILL DIMINISH TO LIGHT AND VARIABLE ON
SATURDAY. THEREFORE WILL MAKE A FEW AMENDMENTS TO THE PREVIOUS
FCST.

.LONG TERM...
SUNDAY THROUGH THURSDAY...THE SURFACE TROUGH TO THE SOUTH WILL
AGAIN OSCILLATE ACROSS THE ISLANDS ON TUESDAY. WILL KEEP THE
PREVIOUS WHILE MONITORING A FEW MORE MODEL RUNS.

&&

.MARINE...
STRONG SOUTHERLY SWELLS WILL CONTINUE TO ELEVATE SEAS TO HAZARDOUS
CONDITIONS TONIGHT THROUGH SUNDAY MORNING. HIGH SURF ADVISORY AND
SMALL CRAFT ADVISORY REMAINS IN EFFECT THROUGH SUNDAY MORNING.

&&

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

&&

$$

MALALA








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