000
FXZS60 NSTU 200104
AFDPPG

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE PAGO PAGO AS
200 PM SST MON JAN 18 2009

.SHORT TERM...
.TONIGHT THROUGH WEDNESDAY...THE SATELLITE IMAGERIES SHOW A
 TROUGH OVER THE ISLANDS AND A RIDGE FURTHER SOUTH. OVER TAHITI
 IS AN INTENSE TROUGH WITH NUMEROUS LOWS. ONE OF THESE LOWS WILL
 BREAK OFF FROM THE TROUGH AND MOVE WEST BY TONIGHT. THE RIDGE
 FURTHER SOUTH WILL REMAIN NEARLY STATIONARY. AS THE LOW PRESSURE
 SYSTEM MOVES WEST IT WILL INTENSIFY AS A RIDGE BUILDS TO THE
 NORTH. THIS WILL DRAMATICALLY CHANGES WIND DIRECTIONS OVER THE
 ISLANDS. MODELS INDICATE WHEN THE LOW PRESSURE SYSTEM REACHES
 163W ON WEDNESDAY IT WILL THEN CHANGE DIRECTION MOVING SOUTHWARD
 ALONG A TROUGH AXIS OF A CUT-OFF LOW LOCATED FURTHER SOUTH.
 THEREFORE, THE TROUGH THAT IS NOW OVER THE ISLANDS WILL MEANDER
 OVER THE ISLANDS THROUGHOUT THE PERIOD.

AS A RESULT...PARTLY CLOUDY WITH ISOLATED SHOWERS TONIGHT BECOMING
MOSTLY CLOUDY WITH WIDELY SCATTERED SHOWERS TUESDAY. EAST WINDS
 5 TO 15 MPH BECOMING NORTHERLY TUESDAY.
&&

.LONG TERM...
.THURSDAY THROUGH MONDAY...THE LOW PRESSURE SYSTEM WILL FORM OVER
 THE ISLANDS BY THURSDAY ALONG THE CUT-OFF LOW TROUGH AXIS. THE
 LOW PRESSURE SYSTEM WILL REMAIN OF THE ISLANDS FOR THE REST OF
 THE PERIOD. THE RIDGE TO THE NORTH AND FURTHER SOUTH WILL ALSO
 REMAIN STATIONARY THROUGHOUT THE PERIOD.

AS A RESULT...MOSTLY CLOUDY WITH SCATTERED SHOWERS. NORTHWEST
WINDS 5 TO 15 MPH.

.MARINE...
NO SIGNIFICANT SWELL
&&
.PPG WATCHES/WARNINGS/ADVISORIES...
NONE
&&

$$
AKAPO/MALALA

000
FXZS60 NSTU 190054
AFDPPG

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE PAGO PAGO AS
200 PM SST SUN JAN 18 2009

.SHORT TERM...
.TONIGHT THROUGH TUESDAY...THE SATELLITE IMAGERIES SHOW A
 TROUGH OVER THE ISLANDS AND A RIDGE TO THE SOUTH. FURTHER EAST
 WHICH IS NORTHWEST OF TAHITI LIES A LOW PRESSURE SYSTEM DEPICTED
 BY BOTH GOES AND QUIKSCAT. THE TROUGH WILL REMAIN NEARLY
 STATIONARY THROUGH MOST OF THE PERIOD WHILE NUMEROUS LOW WITHIN
 WILL MOVE NORTHWEST ALONG THE AXIS. THE INTENSE LOW NORTHWEST OF
 TAHITI WILL DEEPEN AND MOVE WEST TOWARDS THE ISLANDS.

AS A RESULT...MOSTLY CLOUDY WITH WIDELY SCATTERED SHOWERS. EAST
WINDS 5 TO 15 MPH BECOMING VARIBLE TUESDAY.
&&

.LONG TERM...
.WEDNESDAY THROUGH SUNDAY...THE INTENSE LOW CONTINUES TO INTENSIFY
 NEAR 160W AND MOVES SOUTH WEDNESDAY ALONG THE TROUGH AXIS OF A
 CUT-OFF LOW FAR EAST OF NEW ZEALAND. THE TROUGH FROM THIS CUT-OFF
 LOW WILL REMAIN OVER THE ISLANDS FOR THROUGHOUT THE PERIOD.

AS A RESULT...MOSTLY CLOUDY WITH SCATRTERED SHOWERS. VARIBLE WINDS
TO 15 MPH BECOMING NORTHWEST WINDS 5 TO 15 MPH FRIDAY.

.MARINE...
NO SIGNIFICANT SWELL
&&
.PPG WATCHES/WARNINGS/ADVISORIES...
NONE
&&

$$
AKAPO/MALALA

000
FXZS60 NSTU 180056
AFDPPG

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE PAGO PAGO AS
200 PM SST SAT JAN 17 2009

.SHORT TERM...
.TONIGHT THROUGH MONDAY...THE SATELLITE IMAGERIES SHOW A TROUGH
 NEAR SOUTHWEST OF THE ISLANDS AND A HIGH PRESSURE SYSTEM SOUTH
 OF FIJI. THE TROUGH WILL CONTINUE TO MOVE WESTWARD AS THE HIGH
 PRESSURE SYSTEM SOUTH OF FIJI MOVES EASTWARD. A WEAK LOW WILL
 PASS OVER THE ISLANDS BY MONDAY ALONG A TROUGH AXIS THAT IS
 ASSOCIATED WITH A LOW PRESSURE SYSTEM FAR SOUTH OF TONGA.

AS A RESULT...PARTLY CLOUDY WITH ISOLATED SHOWERS BECOMING MOSTLY
CLOUDY WITH SCATTERED SHOWERS MONDAY. EAST WINDS 5 TO 15 MPH
BECOMING VARIBLE MONDAY.
&&

.LONG TERM...
.TUESDAY THROUGH SATURDAY...THE TROUGH ACROSS THE ISLANDS WILL
 REMAIN NEARLY STATIIONARY WITH A SERIES OF LOWS PRESSURE AREAS
 MOVING WESTWARD ACROSS THE TROUGH.  ONE OF THESE LOWS WILL
 INTENSIFY  FAR WEST OF MANUA BY WEDNESDAY THEN MOVE SOUTHWARD
 THEREAFTER.

AS A RESULT...MOSTLY CLOUDY WITH SCATRTERED SHOWERS. SOUTHEAST
WINDS 10 TO 15 MPH BECOMING NORTHWEST THURSDAY.

.MARINE...
NO SIGNIFICANT SWELL
&&
.PPG WATCHES/WARNINGS/ADVISORIES...
NONE
&&

$$
AKAPO