Pago Pago, American Samoa Weather Conditions

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Current Conditions

  • 69°
  • Clear
  • Wind: ENE 5 mph
  • Humidity: 81%
  • Visibility: 10.0 miles
  • Dew Point: 63°
  • Pressure: 29.87 in. +

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Next 12 Hours

5  am
8  am
11  am
2  pm
5  pm
Partly Cloudy
Partly Cloudy
Partly Cloudy
Partly Cloudy
Partly Cloudy
Partly Cloudy
Mostly Cloudy
Mostly Cloudy
Mostly Cloudy
Mostly Cloudy
72°
73°
79°
81°
79°
Forecast data from the National Digital Forecast Database.

5 Day Forecast

  • Monday
  • Partly Cloudy
  • High: 81 °
  • Low: 70 °
  • Partly Cloudy
  • Tuesday
  • Rain Showers
  • High: 79 °
  • Low: 68 °
  • Rain Showers
  • Wednesday
  • Partly Cloudy
  • High: 81 °
  • Low: 68 °
  • Partly Cloudy
  • Thursday
  • Partly Cloudy
  • High: 81 °
  • Low: 70 °
  • Partly Cloudy
  • Friday
  • Clear
  • High: 81 °
  • Low: 70 °
  • Clear

Forecast for Pago Pago, American Samoa

Updated: 11:00 PM HST on January 25, 2015

  • Monday

    Partly cloudy. High of 81F. Winds from the SSW at 5 to 10 mph.

  • Monday Night

    Partly cloudy. Low of 70F. Winds less than 5 mph.

  • Tuesday

    Overcast in the morning, then partly cloudy with rain showers. High of 79F. Winds less than 5 mph. Chance of rain 20%.

  • Tuesday Night

    Overcast in the evening, then partly cloudy. Low of 68F. Winds less than 5 mph.

  • Wednesday

    Clear in the morning, then mostly cloudy. High of 81F. Winds from the SSW at 5 to 10 mph shifting to the WNW in the afternoon.

  • Wednesday Night

    Partly cloudy. Low of 68F. Winds from the North at 5 to 10 mph shifting to the WSW after midnight.

  • Thursday

    Partly cloudy in the morning, then clear. High of 81F. Winds from the West at 5 to 10 mph.

  • Thursday Night

    Clear. Low of 70F. Winds less than 5 mph.

  • Friday

    Clear. High of 81F. Winds from the SSW at 5 to 10 mph.

  • Friday Night

    Clear with a chance of rain. Low of 70F. Winds less than 5 mph. Chance of rain 50%.

  • Saturday

    Clear. High of 81F. Winds from the West at 5 to 10 mph.

  • Saturday Night

    Clear. Low of 70F. Winds from the NNE at 5 to 10 mph.

  • Sunday

    Clear. High of 84F. Winds from the North at 5 to 10 mph.

  • Sunday Night

    Clear. Low of 70F. Winds from the NE at 5 to 10 mph.

  • Monday

    Clear. High of 84F. Winds from the NNE at 5 to 10 mph shifting to the NW in the afternoon.

  • Monday Night

    Clear. Low of 68F. Winds less than 5 mph.

  • Tuesday

    Clear. High of 81F. Winds less than 5 mph.

  • Tuesday Night

    Clear. Low of 68F. Winds less than 5 mph.

  • Wednesday

    Clear. High of 81F. Winds less than 5 mph.

  • Wednesday Night

    Clear. Low of 68F. Winds from the WSW at 5 to 10 mph.

  • Thursday

    Clear. High of 81F. Winds from the SW at 5 to 10 mph.

  • Thursday Night

    Clear. Low of 68F. Winds from the WSW at 5 to 10 mph.

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NWS Forecaster Discussion



AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE TIYAN GU
329 PM CHST MON JAN 26 2015

.SYNOPSIS...
STREAM LINE ANALYSIS SHOWS A ROBUST SHEAR LINE STILL NORTH OF
MARIANAS WATERS WITH ISOLATED SHOWERS ACROSS THE REGION.
HOWEVER...WINDS NORTH OF THE SHEAR LINE HAVE DECREASED IN THE PAST
12 HOURS INDICATING THAT THE SHEAR LINE IS WEAKENING. A TRADE-
WIND REGIME EXISTS OVER AND UPSTREAM OF THE MARIANAS WITH RADAR
SHOWING ONLY A FEW PASSING LIGHT SHOWERS.

&&

.DISCUSSION...
REPOPULATED MOST FORECAST GRIDS WITH LATEST AVAILABLE MODEL
GUIDANCE WHILE MANUALLY ADJUSTING SOME GRIDS AS REQUIRED.
HOWEVER...ONLY MINOR CHANGES WERE MADE OVERALL. THE SHEAR LINE
ACROSS THE NORTHERN MARIANAS APPEARS TO BE WEAKENING WIND-WISE
BASED ON THE MOST RECENT SCATTEROMETER PASS. A DRY TRADE-WIND
PATTERN HAS SET UP OVER THE REGION SOUTH OF THE SHEAR LINE AND IS
EXPECTED TO PERSIST FOR THE NEXT SEVERAL DAYS. BOTH THE GFS AND
ECMWF SHOW A SUBTROPICAL AIR MASS ARRIVING LATE THIS WEEK WHICH
COULD RESULT IN A SLIGHT REDUCTION IN TEMPERATURES AND LOWER
RELATIVE HUMIDITIES BY THE WEEKEND.

&&

.MARINE...
RITIDIAN BUOY INDICATED COMBINED SEAS CLIMBED TO 10 FEET
OVERNIGHT. SEAS ARE BEGINNING TO FALL BUT NORTH SWELL COMBINED
WITH NORTHEAST SWELL AND WIND WAVES GENERATED BY THE SHEAR LINE
WILL RESULT IN HAZARDOUS SURF ALONG NORTH FACING REEFS THROUGH
TUESDAY MORNING. WAVE MODEL GUIDANCE SHOWS A STEADY DECREASE IN
SEAS TONIGHT SO SURF ADVISORY MAY NEED TO BE CANCELLED SOONER IF
DATA AND GUIDANCE SUPPORTS DOING SO.

&&

.EASTERN MICRONESIA...
A NEAR-EQUATORIAL TROUGH PERSISTS JUST SOUTH OF CHUUK...POHNPEI
AND KOSRAE TODAY. MODERATE TO FRESH TRADE WINDS DOMINATE WEATHER
AT THESE FORECAST POINTS...ALSO AT MAJURO. THIS PATTERN IS
EXPECTED TO PERSIST FOR THE NEAR TERM AT LEAST...WHILE A TRADE-
WIND CONVERGENCE ZONE UPSTREAM EAST OF THE DATE LINE MOVES
WESTWARD CAUSING SOME SHOWERS AT MAJURO AND KOSRAE BY MIDWEEK...
THEN POHNPEI AND CHUUK TOWARD THE WEEKEND.

LARGE TRADE-WIND WAVES AND SWELL WILL SUSTAIN HAZARDOUS SURF ON 
KOSRAE FOR THE NEXT SEVERAL DAYS. SEAS ACROSS THE MARSHALL ISLANDS 
WILL BE HAZARDOUS FOR SMALL CRAFT OPERATION THRU MIDWEEK. SEAS NEAR 
POHNPEI AND CHUUK WILL BEGIN TO RISE ON TUESDAY WHICH MIGHT BECOME 
HAZARDOUS FOR SMALL CRAFT AS WELL.

&&

.WESTERN MICRONESIA...
DISCUSSION FOR THE CHUUK FORECAST IS INCLUDED IN THE EASTERN
MICRONESIA SECTION DUE TO A SIMILAR PATTERN.

BOTH KOROR AND YAP ARE BETWEEN SIGNIFICANT SYNOPTIC-SCALE WEATHER 
FEATURES. A SHEAR LINE IS FAR TO THE NORTH AND A NEAR-EQUATORIAL 
TROUGH IS FAR TO THE SOUTH. THIS DRY TRADE-WIND PATTERN IS EXPECTED 
TO CONTINUE THROUGH THIS WEEK. 

&&

.GUM WATCHES/WARNINGS/ADVISORIES...
GU...HIGH SURF ADVISORY UNTIL 10 AM CHST TUESDAY FOR GUZ001>004.

MARIANAS WATERS...NONE.
&&

$$

WILLIAMS/SIMPSON


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