Area Forecast Discussion
Issued by NWS Pago Pago

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000
FXZS60 NSTU 290025
AFDPPG

AREA FORECAST DISCUSSION FOR AMERICAN SAMOA AND INDEPENDENT SAMOA
NATIONAL WEATHER SERVICE PAGO PAGO AS
125 PM SST SUN MAY 28 2017

.SHORT TERM...
.TONIGHT THROUGH TUESDAY NIGHT...DRY EASTERLIES AND ONLY MINIMAL
SHOWERS ARE EXPECTED THROUGH SHORT TERM. THANKS TO A SURFACE TO
MID-LEVEL RIDGE CENTERED SOUTH OF THE MAIN SAMOAN ISLES WHICH WILL
YIELD TO MOSTLY FAVORABLE WEATHER CONDITIONS. THUS...FRESH TO STRONG
BREEZE AND WARMER TEMPERATURES IN THE UPPER 80S TO NEAR 90S WILL
PERSIST ACROSS THE REGION.

.LONG TERM...
.WEDNESDAY THROUGH SUNDAY...MODERATE TO FRESH BREEZE AND ISOLATED
SHOWERS WILL PASS THROUGH THE FCST ZONES. A WEAK SURFACE HIGH
PRESSURE SOUTH OF THE REGION WILL BUILD EASTWARD AND NORTHWARD
BEYOND THE SAMOAN ISLANDS THROUGH SATURDAY. MEANWHILE...A
DEVELOPING SURFACE TROUGH WNW OF SAVAII WILL DRIVE SOUTHEASTWARD
OF UPOLU AND TUTUILA DURING SATURDAY AND SUNDAY. PERHAPS THIS
WEATHER PHENOMENON WILL BRING INCREASING RAINFALL AND POSSIBLE
TSTMS ACROSS THE AREA...BUT WILL HOLD OFF ON UPDATING THE LONG
TERM FCST AS CONFIDENCE LEVEL IS LOW. AS A RESULT...ANTICIPATE
EAST-SOUTHEAST WINDS TO PREDOMINATE LOCAL CONDITIONS OVER THE NEXT
SEVERAL DAYS.

&&

.MARINE...LONG PERIODS UP TO 14 TO 17 SEC OF 9 TO 12 FT WILL PASS
THROUGH THE AREA OVER THE NEXT COUPLE DAYS AS A RESULT OF A COMBINED
LOW PRESSURE SYSTEM...AND STRONG TRADE-WIND REGIME SOUTH OF THE
REGION. THE PACIOOS WAVE BUOY NEAR AUNUU CONTINUED TO DISPLAY
SIGNIFICANT WAVE HEIGHTS BETWEEN 8 TO 10 FT WITH LONG PERIODS
RANGING FROM 11 TO 13 SECONDS. THEREFORE...ISSUANCE OF ADVISORIES
FOR HIGH SURFS AND SMALL CRAFTS WILL CONTINUE TO REMAIN IN EFFECT
UNTIL AROUND MIDWEEK.

&&

.PPG WATCHES/WARNINGS/ADVISORIES...

.A SMALL CRAFT ADVISORY.
.A HIGH SURF ADVISORY.

&&

$$

CB








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