Area Forecast Discussion
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FXPQ60 PGUM 261957
AFDPQ

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE TIYAN GU
ISSUED BY NATIONAL WEATHER SERVICE HONOLULU HI
557 AM CHST WED MAY 27 2015

.MARIANAS SYNOPSIS...
RADAR AND INFRARED SATELLITE SHOW CLOUDS AND MODERATE SHOWERS FROM
ROTA TO SAIPAN THIS MORNING AHEAD OF AN APPROACHING DISTURBANCE.
EXPECT AN UPTICK IN CLOUDS AND SHOWERS THROUGH FRIDAY ACROSS GUAM
AND THE MARIANAS. A DRY EAST TRADE WIND PATTERN WILL RESUME THIS
WEEKEND.

&&

.DISCUSSION...
RADAR AND INFRARED SATELLITE SHOW CLOUDS AND MODERATE SHOWERS FROM
ROTA TO SAIPAN THIS MORNING. ANOTHER AREA OF HEAVIER SHOWERS IS
LOCATED ABOUT 150 MILES WEST OF GUAM. A LOW PRESSURE SYSTEM WILL
DEVELOP SOUTHEAST OF THE AREA TODAY...AND SLOWLY TRACK NORTHWESTWARD.
ANTICIPATING INCREASING SHOWERS ACROSS GUAM AND THE MARIANAS TODAY
THROUGH FRIDAY AS THE DISTURBANCE APPROACHES AND PASSES OVER GUAM
ON FRIDAY. THE GREATEST CHANCE FOR RAIN WILL BE ON THURSDAY AND
FRIDAY. IN ADDITION...SOUTHEAST WINDS WILL STRENGTHEN ALONG THE
NORTHERN FLANK OF THE LOW AND LIKELY BRING MODERATE BREEZES OVER
THE MARIANAS TOMORROW AND FRIDAY.

MODELS SHOW THE LOW WEAKENING AS IT MOVES WEST OF THE AREA ON
SATURDAY. EXPECT DECREASING RAIN AND WINDS AT THAT TIME...FOLLOWED
BY A DRY EAST TRADE WIND PATTERN ON SUNDAY INTO EARLY NEXT WEEK.

&&

.EASTERN MICRONESIA...
SATELLITE SHOWS PATCHY AREAS OF SHOWERS FROM NORTH OF POHNPEI AND
KOSRAE ACROSS THE MAJURO AREA. AN UPPER-LEVEL TROUGH IS HELPING TO
TRIGGER A FEW THUNDERSTORMS IN THESE AREAS. A SURFACE TROUGH MAY
PERSIST ACROSS THE MARSHALL ISLANDS...AND LOW-LEVEL CONVERGENCE
WILL CONTINUE TO CAUSE SPOTTY SHOWERS ACROSS EASTERN MICRONESIA
FOR THE NEAR TERM. MODELS GENERALLY INDICATE THE UPPER TROUGH WILL
LIFT TOWARD NORTHEAST AND A SLIGHTLY DRIER TRADE-WIND FLOW WILL
DEVELOP ACROSS EASTERN MICRONESIA BY THE COMING WEEKEND.

&&

.WESTERN MICRONESIA...
A SURFACE LOW WILL DEVELOP NORTH OF CHUUK TODAY...AND MOVE TO THE
NORTHWEST THURSDAY AND FRIDAY. OTHERWISE AT CHUUK...PATCHY CLOUDS
AND SHOWERS COULD ARRIVE FROM THE EAST BY THURSDAY AND FRIDAY. FOR
YAP AND KOROR...HIGH PRESSURE AND DRY WEATHER DOMINATES CONDITIONS
ACROSS FAR WESTERN MICRONESIA... ESPECIALLY FOR THE REPUBLIC OF
PALAU...AND LITTLE CHANGE IS EXPECTED THROUGH THE NEXT SEVERAL
DAYS. RESIDENTS OF PALAU SHOULD MONITOR THEIR WATER SUPPLIES AND
BE PREPARED FOR VERY DRY WEATHER.

&&

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

$$

FOSTER





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