Area Forecast Discussion
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000
FXPQ60 PGUM 270710
AFDPQ

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE TIYAN GU
510 PM CHST WED MAY 27 2015

.SYNOPSIS...
RADAR IMAGERY SHOWS ISOLATED SHOWERS ACROSS THE MARIANAS THIS
AFTERNOON. VAD WIND PROFILE SHOWS GENTLE NORTHEAST WINDS OVER
GUAM. A WEAK CIRCULATION IS CENTERED BETWEEN GUAM AND CHUUK NEAR
11N149E. CLOUDS AND WIDELY-SCATTERED SHOWERS ARE SEEN NEAR THE
CIRCULATION.

&&

.DISCUSSION...
THE WEAK CIRCULATION SOUTHEAST OF GUAM WILL CONTINUE TO DRIFT
TOWARDS GUAM TONIGHT AND THURSDAY. FAIRLY DRY CONDITIONS WILL
PERSIST TONIGHT...BUT SKIES WILL BECOME MOSTLY CLOUDY ON THURSDAY
WITH A SMALL UPTICK IN SHOWERS. COVERAGE WILL REMAIN ISOLATED THE
NEXT COUPLE DAYS AS THE CIRCULATION PASSES. MAIN FEATURES WITH
THIS SYSTEM WILL BE GENTLE WINDS...SHIFTING FROM THE NORTHEAST
TONIGHT...TO THE SOUTHEAST BY FRIDAY. A DRIER TRADE-WIND PATTERN
WITH GENTLE EAST TRADES WILL RETURN SUNDAY.

&&

.EASTERN MICRONESIA...
SATELLITE SHOWS PATCHY AREAS OF SHOWERS NEAR AND NORTH OF POHNPEI
AND ACROSS THE MAJURO AREA...BUT NOTHING VERY ORGANIZED. A SURFACE
TROUGH PERSISTS ACROSS THE CENTRAL MARSHALL ISLANDS AND LOW-LEVEL
CONVERGENCE WILL TRIGGER ONLY SPOTTY SHOWERS AT TIMES AS A SLIGHTLY
DRIER TRADE-WIND FLOW DEVELOPS ACROSS EASTERN MICRONESIA THIS
WEEKEND.

&&

.WESTERN MICRONESIA...
THE SURFACE TROUGH/WEAK CIRCULATION NORTHWEST OF CHUUK CENTERED AT
ABOUT 11N150E HAS BEEN WEAKENING AND DRIFTING SLOWLY TOWARD THE
WEST. DRY WEATHER PERSISTS AT CHUUK...BUT SOME CLOUDS AND SHOWERS
COULD ARRIVE FROM THE EAST LATE THURSDAY THROUGH FRIDAY. FOR YAP
AND KOROR...HIGH PRESSURE AND DRY WEATHER DOMINATES CONDITIONS
ACROSS FAR WESTERN MICRONESIA. ISLAND CONVECTION COULD TRIGGER
ISOLATED AFTERNOON SHOWERS FOR KOROR...BUT LITTLE CHANGE IS
EXPECTED IN THE SYNOPTIC PATTERN 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.
&&

$$

M. AYDLETT/SIMPSON



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