Home > Products > State Listing > American Samoa Data
Latest:
 AFDPPG |
  [top]

000
FXZS60 NSTU 190053
AFDPPG

AREA FORECAST DISCUSSION FOR AMERICAN SAMOA AND INDEPENDENT SAMOA
NATIONAL WEATHER SERVICE PAGO PAGO AS
153 PM SST THU SEP 18 2014

.SHORT TERM...
.TONIGHT THROUGH SATURDAY NIGHT...A WEAK SURFACE TROUGH TO THE EAST
OF MANUA WILL EVENTUALLY DISSIPATE SATURDAY EVENING. A HIGH PRESSURE
FROM YESTERDAY TO THE SOUTH OF THE REGION WILL CONTINUE TO MOVE EASTWARD
THROUGH THE REST OF THIS WEEK. THUS...COMPUTER MODELS HAVE NOW DOWNPLAYED
THE WIND SPEEDS TO NEAR 10 TO 15 KT DURING THE SHORT TERM FCST PERIOD.
YET...RELATIVELY DRY TRADES WILL CONTINUE TO PERSIST ACROSS THE REGION. AS
A RESULT...ANTICIPATE MINIMAL SHOWERS AND MODERATE TRADE-WINDS DURING
THE NEXT COUPLE OF DAYS.

.LONG TERM...
.SUNDAY THROUGH THURSDAY...A SURFACE RIDGE TO THE SOUTH WILL YIELD
TO RELATIVELY DRY WEATHER CONDITIONS UNTIL MONDAY MORNING. A LOW-
LEVEL CONVERGENCE WILL GENERATE SCATTERED TO NUMEROUS SHOWERS AND
POSSIBLE TSTMS JUST NORTH OF THE SAMOAN ISLANDS DURING MONDAY. CLOUDS
AND RAINFALL FROM THIS WEATHER PATTERN WILL EITHER HIT OR MISS THE
FCST ZONES. FAR SOUTH...A STRONG HIGH PRESSURE SYSTEM NEAR AUSTRALIA WILL
BUILD EASTWARD DURING THE LONG TERM FCST PERIOD. THE LEADING EDGE OF
THIS HIGH WILL MOVE CLOSER TO THE REGION STARTING TUESDAY. WILL MONITOR
THIS SITUATION AND PROVIDE UPDATES AS NEW MODELS BECOME AVAILABLE.
FOR NOW...ANTICIPATE MINIMAL SHOWERS OVER AMERICAN SAMOA AND SCATTERED
SHOWERS OVER UPOLU WESTWARD DURING 22/1800 UTC TO 23/1800 UTC.

&&

.MARINE...COMBINED SEAS OF 5 TO 7 FEET WILL PERSIST OVER THE NEXT
COUPLE OF DAYS.

&&

.PPG WATCHES/WARNINGS/ADVISORIES...
.NONE.

&&

$$

BAQUI







000
FXZS60 NSTU 180103
AFDPPG

AREA FORECAST DISCUSSION FOR AMERICAN SAMOA AND INDEPENDENT SAMOA
NATIONAL WEATHER SERVICE PAGO PAGO AS
203 PM SST WED SEP 17 2014

.SHORT TERM...
TONIGHT THROUGH FRIDAY NIGHT...SATELLITE IMAGERIES SHOW
CONVECTIONS DISSIPATING OVER TUTUILA AND AUNUU FROM THIS MORNING.
RAOB FROM THIS AFTERNOON DEPICTS A STABLE PROFILE WITH WINDS
BACKING IN HEIGHTS AT THE MID LEVELS. MODELS CONTINUE TO MIGRATE
THE HIGH TO THE SOUTH OF TONGA EASTWARD TONIGHT. WITH THE TROUGH
MOVING NORTHEAST...SOUTHEAST WINDS WILL SLIGHTLY INCREASE TO
BREEZY CONDITIONS ON THURSDAY BEFORE DIMINISHING TO GENTLE EAST
WINDS ON SATURDAY MORNING. THEREFORE NO CHANGES TO THE PREVIOUS
FCST.

.LONG TERM...
SATURDAY THROUGH WEDNESDAY...A TROUGH IS EXPECTED TO BUILD TO THE
SOUTH OF THE ISLANDS IN THE BEGINNING OF THE NEW WEEK. WINDS ARE
EXPECTED TO REMAIN IN GENTLE CONDITIONS DURING THE LONG TERM.
SHOWERS WILL REMAIN AT A MINIMAL DURING THE REST OF THE FCST.
THEREFORE NO CHANGES TO THE PREVIOUS FCST.

&&

.MARINE...
SEAS OF 5 TO 7 FEET WILL PERSIST TONIGHT. WITH BREEZY
TRADES...SEAS WILL BUILD 6 TO 8 FT ON THURSDAY MORNING UNTIL
FRIDAY NIGHT.


&&

.PPG WATCHES/WARNINGS/ADVISORIES...
NONE.

&&

$$

MALALA







    US Dept of Commerce
    National Oceanic and Atmospheric Administration
    National Weather Service
    1325 East West Highway
    Silver Spring, MD 20910
    Page Author: NWS Internet Services Team
Disclaimer
Information Quality
Credits
Glossary
Privacy Policy
Freedom of Information Act (FOIA)
About Us
Career Opportunities