Home > Products > Valid Products > AFD

000
FXZS60 NSTU 010039
AFDPPG

AREA FORECAST DISCUSSION FOR AMERICAN SAMOA AND INDEPENDENT SAMOA
NATIONAL WEATHER SERVICE PAGO PAGO AS
139 PM SST SUN AUG 31 2014

.SHORT TERM (TONIGHT THROUGH TUESDAY NIGHT)...
LATEST SATELLITE IMAGERY SHOWS AN ACTIVE LINE OF THUNDERSTORMS
ASSOCIATED WITH THE STATIONARY FRONT TO THE NORTH OF THE ISLANDS.
THIS FRONT IS STILL FORECASTED TO REMAIN TO THE NORTH THROUGH THE
SHORT TERM. HOWEVER...LATEST SOLUTIONS SHOW SOME MOISTURE DRIFTING
OVER THE ISLANDS TONIGHT. OTHERWISE...DRIER CONDITIONS AND MODERATE
TO FRESH EASTERLIES WILL PREVAIL ACROSS THE TERRITORY AS A SURFACE
RIDGE LIES JUST SOUTH OF THE ISLANDS.

.LONG TERM (WEDNESDAY THROUGH SUNDAY)...
THE STATIONARY FRONT TO THE NORTH AND THE STAGNANT SURFACE RIDGE TO
THE SOUTH WILL MAINTAIN THE BENIGN WEATHER ACROSS THE ISLANDS. WITH
THE EXCEPTION OF LATE THURSDAY THROUGH AT LEAST FRIDAY...WHERE A SLIGHT
UPTICK IN SHOWERS AND CLOUDS ARE EXPECTED...AS THE AFOREMENTIONED RIDGE
DRIFTS SLIGHTLY TO THE SOUTH...AND THE AFOREMENTIONED FRONT DRIFTS CLOSER
TO THE ISLANDS. UNLIKE PREVIOUS DISCUSSION...LATEST SOLUTIONS SHOW MODERATE
TO FRESH EASTERLIES TO REMAIN THROUGH THE LONG TERM WITHOUT THE SLIGHT
INCREASE THAT WAS PREVIOUSLY MENTIONED TOWARDS THE LATTER PART OF THE
WEEK. RATHER...A WINDS WILL SLIGHTLY DIMINISH THROUGH THE WEEKEND
AS GRADIENTS ARE MORE LAX OVER THE AREA.

&&

.MARINE...
SEAS AND WINDS WILL CONTINUE TO MAINTAIN ADVISORIES FOR HIGH SURF AND
SMALL CRAFTS THROUGH AT LEAST TUESDAY.

&&

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

&&

$$
LUTU-MCMOORE








000
FXZS60 NSTU 310101
AFDPPG

AREA FORECAST DISCUSSION FOR AMERICAN SAMOA AND INDEPENDENT SAMOA
NATIONAL WEATHER SERVICE PAGO PAGO AS
201 PM SST SAT AUG 30 2014

.SHORT TERM (TONIGHT THROUGH MONDAY NIGHT)...
TWO MAIN FEATURES CONTINUE TO AFFECT WEATHER CONDITIONS OVER THE
SAMOAN ISLANDS...THE STATIONARY FRONT STRADDLING 10S AND A STRONG
1035MB HIGH PRESSURE SYSTEM FAR SOUTH OF THE TERRITORY THAT IS
DRIFTING EAST. WITH THE PLACEMENT OF THESE TWO FEATURES...EXPECT
MODERATE TO BREEZY EASTERLIES WITH PERIODS OF SHOWERS TO PREVAIL
ACROSS THE AREA.

.LONG TERM (TUESDAY THROUGH SATURDAY)...
LATEST SOLUTIONS SHOW THE HIGH PRESSURE SYSTEM CONTINUING ITS
EASTWARD MOVEMENT THROUGH THE LONG TERM AS THE AFOREMENTIONED
FRONT SHIFTS SLIGHTLY NORTHWARD. HENCE...EASTERLIES WILL SLIGHTLY
DIMINISH WITH A TAD BIT NICER WEATHER THROUGH THE FIRST HALF OF
THE LONG TERM. BY THE LATTER PART OF THE WEEK...GLOBAL MODELS SHOW
THE AFOREMENTIONED FRONT RE-DEVELOPING NEAR THE SAMOAN ISLANDS.
THUS...BRINGING A SLIGHT UPTICK IN SHOWERS. WILL CONTINUE TO
MONITOR FUTURE SOLUTIONS TO ENSURE THESE SOLUTIONS HOLD AND MAKE
ADJUSTMENTS IF NECESSARY.

&&

.MARINE...
HAVE DOWNGRADED THE HIGH SURF WARNING TO A HIGH SURF ADVISORY
THROUGH AT LEAST TUESDAY AS THE LARGE SOUTHEAST SWELL GRADUALLY
DIMINISHES. THE PERSISTENT MODERATE TO FRESH EASTERLIES ACROSS
THE AREA WILL LIKELY MAINTAIN THE ADVISORY FOR SMALL CRAFTS
THROUGH THE FORECAST PACKAGE.

&&

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

&&

$$
LUTU-MCMOORE








000
FXZS60 NSTU 300018
AFDPPG

AREA FORECAST DISCUSSION FOR AMERICAN SAMOA AND INDEPENDENT SAMOA
NATIONAL WEATHER SERVICE PAGO PAGO AS
118 PM SST FRI AUG 29 2014

.SHORT TERM (TONIGHT THROUGH SUNDAY NIGHT)...
VERY LITTLE CHANGE IN THE FORECAST AS THE STRONG HIGH PRESSURE
SYSTEM REMAINS FAR SOUTH OF THE TERRITORY...COMBINED WITH THE
STATIONARY FRONT ORIENTED NORTH OF THE SAMOAN ISLANDS CONTINUE TO
DOMINATE WEATHER CONDITIONS ACROSS THE AREA. THE BREEZY EASTERLIES
WILL PREVAIL THROUGH THE SHORT TERM AS MINIMAL CHANGE IN PRESSURE
GRADIENTS IS EXPECTED. ADDITIONALLY...EXPECT PERIODS OF SHOWERS TO
BE EMBEDDED WITHIN THE EASTERLY FLOW.

.LONG TERM (MONDAY THROUGH FRIDAY)...
THE AFOREMENTIONED HIGH PRESSURE SYSTEM IS DEPICTED TO DRIFT
EASTWARD THROUGH THE LONG TERM. IT WILL STILL KEEP THE PERSISTENT
STRONG WINDS ACROSS THE ISLANDS. HOWEVER...LATEST SOLUTIONS SHOW A
SLIGHT DECREASE AS THE HIGH PRESSURE SYSTEM SLIGHTLY WEAKENS...AND
THE AFOREMENTIONED FRONT SHIFTS SLIGHTLY TO THE NORTHEAST. BY
THURSDAY...GLOBAL MODELS SHOW THE AFOREMENTIONED HIGH PRESSURE
SYSTEM RE-STRENGTHENING AND THE FRONT REBUILDING CLOSE TO THE WESTERN
SAMOAN ISLANDS. THUS...BRINGING A SLIGHT UPTICK IN SHOWERS...AND
TIGHTENING THE PRESSURE GRADIENT ACROSS THE AREA...CAUSING A
SLIGHT INCREASE IN SOUTHEASTERLIES.

&&

.MARINE...
LATEST WAVE WATCH III SOLUTIONS SHOW THE SOUTHEAST SWELL GRADUALLY
DIMINISHING LATE TONIGHT...EXPECTED TO FALL BELOW ADVISORY
THRESHOLDS FOR HIGH SURF BY SUNDAY. WILL CONTINUE THE HIGH SURF
WARNING THROUGH SATURDAY MORNING THEN LIKELY DOWNGRADE IT TO AN
ADVISORY THEREAFTER IF CONDITIONS IMPROVE. THE PERSISTENT BREEZY
WINDS ACROSS THE AREA WILL MAINTAIN THE ADVISORY FOR SMALL CRAFTS
THROUGH THE FORECAST PACKAGE.

&&

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

&&

$$
LUTU-MCMOORE








    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