Area Forecast Discussion
Issued by NWS Pago Pago

Home | Current Version | Previous Version | Text Only | Print | Product List | Glossary On
Versions: 1 2 3 4 5 6 7 
000
FXZS60 NSTU 080117
AFDPPG

AREA FORECAST DISCUSSION FOR AMERICAN SAMOA AND INDEPENDENT SAMOA
NATIONAL WEATHER SERVICE PAGO PAGO AS
217 PM SST FRI MAR 7 2014

.SHORT TERM...
.TONIGHT THROUGH SUNDAY NIGHT...SCATTERED SHOWERS WITH LOCALLY HEAVY
RAINFALL ARE OCCURRING TO THE SOUTHWEST OF MANUA...OVER TUTUILA AND
NEAR UPOLU. THE LATEST GFS MODEL RESOLUTION NOW HINTS AT BRINGING
A MONSOONAL TROUGH OVER THE SAMOAN ISLANDS SATURDAY NIGHT INTO SUNDAY.
THIS MONSOONAL TROUGH HAS EXTENDED NORTHWESTWARD FROM THE NORTHERN
COOK ISLANDS TO 10S170W TO BEYOND THE DATE LINE. A DEVELOPING LOW
PRESSURE ASSOCIATED WITH THE TROUGH AXIS FROM THE NORTH WILL INFLUENCE
LOCAL WEATHER CONDITIONS DURING SUNDAY. A DEVELOPING CIRCULATION
TO THE NORTHWEST OF FIJI WILL ENHANCE WEATHER ACTIVITY ALONG THE
MONSOONAL TROUGH TO SPREAD OVER THE REGION DURING THE NEXT 48
HOURS. IF MODELS ARE CORRECT...WIND DIRECTION AND SPEED...AND
SHOWER COVERAGE WILL MEED TO BE UPDATED ON THE NEXT FCST PACKAGE.
FOR NOW...WILL KEEP THE PREV FCST THE SAME. ANTICIPATE ISOLATED TO
SCATTERED SHOWERS...WITH LOCALLY HEAVY RAINFALL AND POSSIBLE TSTMS
ACROSS THE SAMOAN ISLANDS.

.LONG TERM...
.MONDAY THROUGH FRIDAY...INCREASING SHOWERS AND POSSIBLE STRONG NORTHWEST
WINDS ARE LIKELY DURING THE LONG-TERM FCST PERIOD. A DEVELOPING LOW
PRESSURE NEAR MANUA WILL GENERATE WEATHER STARTING MONDAY MORNING INTO
THE MIDWEEK. WIDESPREAD SHOWERS WITH LOCALLY HEAVY RAINFALL AND ISOLATED
TSTMS HAVE BEEN PROJECTED TO MOVE ACROSS TUTUILA AND MANUA DURING THE
FIRST 48 TO 72 HOURS OF THE LONG-TERM FCST PERIOD...WHILE ONLY ISOLATED
SHOWERS ARE PROGGED TO MOVE OVER UPOLU AND SAVAII DURING THE WEEK. FOR
NOW...WILL KEEP THE SHOWER COVERAGE AT ISOLATED TO SCATTERED SHOWERS
WORDING. WILL MONITOR THIS SITUATION BEFORE MAKING UPDATES.

&&

.MARINE...THE LATEST WAVE WATCH MODEL SHOWS A SHORT-LIVED SWELLS OF
7 TO 9 FEET FROM THE NORTH ENTERING THE SAMOAN COASTAL WATERS DURING
TUESDAY AND WEDNESDAY. FOR NOW...WILL MONITOR THIS SITUATION BEFORE
MAKING NEW UPDATES. THUS...SEAS OF 5 TO 7 FEET WILL PERSIST OVER
THE NEXT COUPLE OF DAYS.

&&

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

&&

$$

BAQUI
USA.gov is the U.S. government's official web portal to all federal, state and local government web resources and services.