000
FXZS60 NSTU 250120
AFDPPG
AREA FORECAST DISCUSSION FOR AMERICAN SAMOA AND INDEPENDENT SAMOA
NATIONAL WEATHER SERVICE PAGO PAGO AS
220 PM SST FRI MAY 24 2013
.SHORT TERM...
.TONIGHT THROUGH SUNDAY NIGHT...SATELLITE IMAGERY SHOWS PARTLY
CLOUDY SKIES AND ISOLATED SHOWERS NEAR SAMOA AND AMERICAN SAMOA.
THE MAIN WEATHER-DRIVEN MECHANISM IS A LARGE SCALE HIGH PRESSURE
CENTERED TO THE SOUTH-SOUTHEAST OF THE REGION WHICH WILL EVENTUALLY
MOVE EASTWARD THROUGH SUNDAY. ALTHOUGH A SURFACE RIDGE FROM THIS
HIGH WILL MOVE CLOSER TO THE SOUTH OF UPOLU AND TUTUILA DURING THE
NEXT 24 TO 36 HOURS...BUT LOCAL WIND SPEEDS WILL REMAIN NEAR 15 TO
20 KT THROUGH SUNDAY BEFORE DROPPING TO NEAR 10 TO 15 KT ON SUNDAY
NIGHT. ONLY ISOLATED SHOWERS ARE EXPECTED. THEREFORE... ANTICIPATE
PARTLY TO MOSTLY CLOUDY SKIES DURING THE LONG TERM FCST PERIOD.
.LONG TERM...
.MONDAY THROUGH FRIDAY...A SURFACE RIDGE NEAR THE SAMOAN ISLANDS
WILL YIELD TO FAVORABLE WEATHER CONDITIONS ON THE MEMORIAL DAY
HOLIDAY BEFORE SCATTERED SHOWERS ENTER THE FCST ZONE NEAR THE
MIDWEEK. A STRONG AREA OF HIGH PRESSURE FROM THE SOUTHWEST WILL
SWEEP CLOUDS AND WEATHER NEAR THE AREA ON WEDNESDAY ESPECIALLY
NEAR SAVAII AND UPOLU. A SHEAR LINE FROM THE SOUTH WILL LIKELY
MAKE ITS WAY NEAR THE SAMOAN ISLANDS JUST BEFORE THE END OF THE
FCST PERIOD...BUT WILL MONITOR THIS SITUATION AS WIND AND SHOWERS
MAY INCREASE BEFORE FRIDAY. FOR NOW...WILL KEEP SHOWERS AT A
MINIMAL WHILE MONITORING ANY NEW DEVELOPING WEATHER FROM THE SOUTH OF
THE REGION DURING THE LATTER PART OF THE WEEK.
&&
.MARINE...COMBINED SEAS OF 4 TO 6 FEET WILL CONTINUE OVER THE NEXT
SEVERAL DAYS.
&&
.PPG WATCHES/WARNINGS/ADVISORIES...
.A SMALL CRAFT ADVISORY.
&&
$$
BAQUI
000
FXZS60 NSTU 240127
AFDPPG
AREA FORECAST DISCUSSION FOR AMERICAN SAMOA AND INDEPENDENT SAMOA
NATIONAL WEATHER SERVICE PAGO PAGO AS
227 PM SST THU MAY 23 2013
.SHORT TERM....TONIGHT THROUGH SATURDAY NIGHT...SAT IMAGERIES
SHOWS WIDELY SCATTERED CLOUDS UPSTRENM ACROSS THE ISLANDS AS A
RIDGE OF HIGH PRESSURE REMAINS NEARLY STATIONARY SOUTH OF THE
ISLANDS.
THEREFORE...EXPECT PARTLY CLOUDY SKY WITH ISOLATED SHOWER THROUGH
SATURDAY WITH MODERATE TO BRISK TRADES TO PERSIST THROUGH
SATURDAY NIGHT.
.LONG TERM...
.SUNDAY THROUGH THURSDAY...A SURFACE RIDGE TO THE SOUTH OF THE
SAMOAN ISLANDS WILL CONTINUE TO MOVE SOUTHEASTWARD THROUGH SUNDAY
NIGHT AS A WEAK TROUGH MOVE OVER THE ISLANDS FROM THE WEST MONDAY.
A SURFACE RIDGE WILL AGAIN REESTABLISH ITSELF OVER THE ISLANDS BY
WEDNESDAY.
THEREFORE...EXPECT PARTLY CLOUDY SKY WITH ISOLATED SHOWERS THROUGH
SUNDAY NIGHT BECOMING MOSTLY CLOUDY WITH SCATTERED SHOWERS MONDAY
AND TUESDAY. FINE WEATHER APART FROM A FEW SHOWERS SHOULD RETURN
BY MID WEEK. MODERATE TRADES THROUGH SUNDAY NIGHT BECOMING LIGHT
AND VARIABLE MONDAY AND TUESDAY. TRADES OF 15 TO 25 MPH SHOULD
RETURN BY THURSDAY.
&&
.MARINE...
NO SIGNIFICANT SWELL EXPECTED.
&&
.PPG WATCHES/WARNINGS/ADVISORIES...
NONE
&&
$$
AKAPO
000
FXZS60 NSTU 230237
AFDPPG
AREA FORECAST DISCUSSION FOR AMERICAN SAMOA AND INDEPENDENT SAMOA
NATIONAL WEATHER SERVICE PAGO PAGO AS
337 PM SST WED MAY 22 2013
.SHORT TERM...
.TONIGHT THROUGH FRIDAY NIGHT...CLOUDS AND SCATTERED SHOWERS ARE
FOUND TO THE WEST AND NORTHWEST OF TUTUILA. THIS SITUATION WILL
MAINLY IMPACT UPOLU AND SAVAII THIS EVENING BEFORE MIDNIGHT
TONIGHT. COMPUTER MODELS NOW HINTS AT BRINGING SCATTERED SHOWERS
NEAR TUTUILA AND UPOLU ON THURSDAY NIGHT INTO FRIDAY MORNING.
THANKS TO AN EXISTING TRADE-WIND REGIME WHICH WILL CONTINUE TO
INFLUENCE LOCAL WEATHER CONDITIONS AND SEAS ACROSS THE FCST ZONES
AND WATERS. AS A RESULT...ANTICIPATE PARTLY TO MOSTLY CLOUDY SKIES
AND ISOLATED SHOWERS...EXCEPT OVER UPOLU EASTWARD ON THURSDAY
NIGHT AND FRIDAY.
.LONG TERM...
.SATURDAY THROUGH WEDNESDAY...A SURFACE RIDGE TO THE SOUTH OF THE
SAMOAN ISLANDS WILL SUSTAIN FAVORABLE WEATHER CONDITIONS. IF
MODELS ARE CORRECT...ANTICIPATE GENTLE TO MODERATE WINDS AND ONLY
ISOLATED SHOWERS OVER THE WEEKEND INTO THE EARLY DAYS OF THE NEW
WEEK ACROSS THE FCST ZONES.
&&
.MARINE...SEAS OF 5 TO 7 FEET WILL CONTINUE OVER THE NEXT SEVERAL
DAYS. THERE ARE NO SIGNIFICANT SWELLS EXPECTED DURING THE NEXT COUPLE
OF DAYS.
&&
.PPG WATCHES/WARNINGS/ADVISORIES...
.A SMALL CRAFT ADVISORY.
&&
$$
BAQUI
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