Pago Pago, American Samoa Weather Conditions

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Current Conditions

  • 86°
  • Scattered Clouds
  • Wind: South 10 mph
  • Humidity: 57%
  • Visibility: 10.0 miles
  • Dew Point: 69°
  • Pressure: 29.89 in. +
  • Heat Index: 90

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Next 12 Hours

5  pm
8  pm
11  pm
2  am
5  am
Partly Cloudy
Partly Cloudy
Partly Cloudy
Partly Cloudy
Partly Cloudy
Partly Cloudy
Partly Cloudy
Partly Cloudy
Overcast
Overcast
84°
81°
79°
77°
77°
Forecast data from the National Digital Forecast Database.

5 Day Forecast

  • Friday
  • Partly Cloudy
  • High: 87 °
  • Low: 75 °
  • Partly Cloudy
  • Saturday
  • Partly Cloudy
  • High: 86 °
  • Low: 75 °
  • Partly Cloudy
  • Sunday
  • Partly Cloudy
  • High: 86 °
  • Low: 75 °
  • Partly Cloudy
  • Monday
  • Chance of Rain
  • High: 86 °
  • Low: 73 °
  • Chance of Rain
  • Tuesday
  • Chance of Rain
  • High: 86 °
  • Low: 75 °
  • Chance of Rain

Forecast for Pago Pago, American Samoa

Updated: 5:00 PM HST on August 22, 2014

  • Friday

    Partly cloudy with rain showers. High of 86F. Winds less than 5 mph.

  • Friday Night

    Partly cloudy in the evening, then overcast. Low of 75F. Winds less than 5 mph.

  • Saturday

    Partly cloudy. High of 86F. Winds from the SSW at 5 to 10 mph.

  • Saturday Night

    Partly cloudy. Low of 75F. Winds less than 5 mph.

  • Sunday

    Partly cloudy. High of 86F. Winds from the NNW at 5 to 10 mph shifting to the WSW in the afternoon.

  • Sunday Night

    Partly cloudy with rain showers. Low of 75F. Winds less than 5 mph. Chance of rain 20%.

  • Monday

    Partly cloudy with a chance of rain in the afternoon. High of 86F. Winds from the SSW at 5 to 10 mph shifting to the WNW in the afternoon. Chance of rain 20%.

  • Monday Night

    Partly cloudy with a chance of rain. Low of 73F. Winds less than 5 mph. Chance of rain 20%.

  • Tuesday

    Partly cloudy with a chance of rain. High of 86F. Winds from the NNW at 5 to 10 mph. Chance of rain 20%.

  • Tuesday Night

    Partly cloudy. Low of 75F. Winds from the North at 5 to 10 mph.

  • Wednesday

    Partly cloudy. High of 86F. Winds from the NNW at 5 to 10 mph.

  • Wednesday Night

    Partly cloudy. Low of 75F. Winds less than 5 mph.

  • Thursday

    Clear with a chance of rain. High of 86F. Winds from the WNW at 5 to 10 mph. Chance of rain 20%.

  • Thursday Night

    Partly cloudy with a chance of rain. Low of 73F. Winds from the NW at 5 to 10 mph. Chance of rain 20%.

  • Friday

    Partly cloudy with a chance of rain. High of 84F. Winds from the WNW at 5 to 10 mph. Chance of rain 50%.

  • Friday Night

    Partly cloudy with a chance of rain. Low of 75F. Winds from the WNW at 5 to 10 mph shifting to the SSW after midnight. Chance of rain 50%.

  • Saturday

    Clear with a chance of a thunderstorm. High of 84F. Winds less than 5 mph. Chance of rain 40%.

  • Saturday Night

    Partly cloudy with a chance of a thunderstorm. Low of 75F. Winds less than 5 mph. Chance of rain 20%.

  • Sunday

    Clear. High of 86F. Winds less than 5 mph.

  • Sunday Night

    Clear. Low of 75F. Winds less than 5 mph.

  • Monday

    Clear. High of 86F. Winds less than 5 mph.

  • Monday Night

    Clear. Low of 75F. Winds less than 5 mph.

  • Tuesday

    Clear. High of 86F. Winds less than 5 mph.

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NWS Forecaster Discussion



AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE TIYAN GU
1220 PM CHST SAT AUG 23 2014

.UPDATE...
PGUA WSR-88D SHOWS SHOWERS AND THUNDERSTORMS MOVING THROUGH
MARIANAS WATERS INCLUDING ROTA...TINIAN AND SAIPAN. THE MORNING
SOUNDING SHOWS A PWAT OF 2.17 AND A SIGNIFICANT K-INDEX. UPDATED
THE FORECASTS TO EXPAND ISOLATED THUNDERSTORM COVERAGE OVER ALL
THE MARIANAS FORECAST ZONES.

&&

.PREV DISCUSSION... /ISSUED 750 AM CHST SAT AUG 23 2014/ 

MARIANAS SYNOPSIS...
PGUA WSR-88D SHOWS A LINE OF SHOWERS MOVING THROUGH GUAM WATERS
AND THE OCEAN SOUTH OF GUAM. OTHERWISE...ONLY ISOLATED SHOWERS AND
THUNDERSTORMS ARE SEEN. THE VAD WIND PROFILE REVEALS SOUTHEAST
WINDS OF 3 TO 8 KNOTS THROUGH THE LOWEST 3 THOUSAND FEET OF THE
AIR.

DISCUSSION...
THUNDERSTORMS ARE DIMINISHING AS THE UPPER-LEVEL LOW CONTINUES TO
MOVE TO THE NORTH. THE THUNDERSTORMS IN THE FORECAST TODAY ARE
MORE DUE TO ISLAND HEATING OVER GUAM AS WE ARE EXPECTING CLEARER
SKIES AND LIGHT WINDS. OTHERWISE...PARTLY CLOUDY SKIES WILL
CONTINUE THROUGH THE FIRST HALF OF NEXT WEEK. CHANGING WIND
DIRECTIONS IN THE SECOND HALF OF NEXT WEEK SUGGEST A TROUGH
PASSAGE. THE GFS40 DID NOT HAVE AN APPRECIABLE INCREASE IN RAIN.
THE ECMWF-HIRES DID HAVE A SLIGHT INCREASE. WILL HAVE TO ALLOW
THIS PERIOD TO COME A LITTLE CLOSER AND WATCH SUCCESSIVE MODEL
RUNS. AT SOME POINT WE MAY NEED TO ADD MOSTLY CLOUDY SKIES AND
PERHAPS EVEN SCATTERED SHOWERS.

COMBINED SEAS OF 1 TO 2 FEET WILL DOUBLE TO BETWEEN 2 AND 4 FEET
MONDAY. THEY ARE THEN EXPECTED TO SUBSIDE TO BETWEEN 1 AND 2 FEET
AGAIN BY LATE IN THE WEEK. ALL OF THESE ARE WAY BELOW ADVISORY
CRITERIA...SO NO ADVISORIES ARE FORESEEN THROUGH THE REST OF
AUGUST.

EASTERN MICRONESIA...
A MILD PATTERN CONTINUES OVER EASTERN MICRONESIA. A RIDGING PATTERN 
REMAINS OVER KOSRAE AND POHNPEI PROMOTING A LIGHT AND VARIABLE WIND 
REGIME THROUGH THE PERIOD. ONLY WEAK TROUGHING WILL AFFECT MAJURO 
TONIGHT THROUGH THE WEEKEND WITH ONLY MOSTLY CLOUDY CONDITIONS WITH 
ISOLATED SHOWERS EXPECTED.

WESTERN MICRONESIA...
THE MONSOON TROUGH REMAINS NORTH OF ALL THREE FORECAST POINTS. 
MONSOONAL FLOW IS ESTABLISHED ACROSS THE REGION. CONVERGING WINDS TO 
THE SOUTH OF THE TROUGH BROUGHT SCATTERED SHOWERS TO KOROR THIS 
MORNING. THIS COMPLEX OF SHOWERS WILL CONTINUE TO AFFECT KOROR 
THROUGH THE DAY BEFORE MOVING WEST AND DISSIPATING. BASED ON 
SATELLITE AND MODEL GUIDANCE...ONLY MADE SHORT TERM MODIFICATIONS TO 
THE INHERITED FORECAST. INCREASED CLOUD COVER AT KOROR ALONG WITH 
SCATTERED SHOWERS THROUGH TODAY. INCREASED CLOUD COVER AT BOTH YAP 
AND CHUUK. BEGINNING TONIGHT...EXPECT DRIER CONDITIONS AT ALL 3 
LOCALES AS A WEAKER WIND REGIME TAKES HOLD THROUGH THE MIDDLE OF 
NEXT WEEK.

&&

.GUM WATCHES/WARNINGS/ADVISORIES...
GU...NONE.
MARIANAS WATERS...NONE.
&&

$$

DEVITA/ZIOBRO


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