ATPQ40 PGUM 300246
SIMGUM
SATELLITE INTERPRETATION MESSAGE
NATIONAL WEATHER SERVICE TIYAN GU
100 PM CHST SAT AUG 30 2008
WESTERN NORTH PACIFIC BETWEEN EQUATOR AND 25N FROM 130E TO 180.
AN UPPER-LEVEL LOW CENTERED NEAR 21N138E IS GENERATING SCATTERED 
SHOWERS AND ISOLATED THUNDERSTORMS WELL NORTHWEST OF THE MARIANAS 
BETWEEN 18N AND 25N FROM 130E TO 138E. 
A WELL ORGANIZED SURFACE LOW LOCATED NEAR 25N154E ALONG WITH 
FAVORABLE UPPER-LEVEL DIVERGENCE IS PRODUCING EXTENSIVE 
CLOUDINESS...SCATTERED SHOWERS AND ISOLATED THUNDERSTORMS OVER 
MINAMI TORI SHIMA BETWEEN 22N AND 25N FROM 151E TO 158E.
A SURFACE TROUGH EXTENDS NORTHEASTWARD FROM EQ141E TO 11N146E. 
CONVERGENCE NEAR AND TO THE EAST OF THE TROUGH IS TRIGGERING 
SCATTERED SHOWERS AND ISOLATED THUNDERSTORMS SOUTH AND EAST OF YAP 
AND KOROR WITHIN 200 MILES OF A LINE STRETCHING NORTHEASTWARD FROM 
EQ138E TO 11N151E.
ANOTHER SURFACE TROUGH ARCS NORTHWARD FROM 5N160E TO 11N161E. 
SURFACE CONVERGENCE ASSOCIATED WITH THIS SYSTEM IS CAUSING SCATTERED 
SHOWERS AND A FEW THUNDERSTORMS OVER PARTS OF THE MARSHALL ISLANDS 
AND OVER KOSRAE WITHIN AN AREA BOUNDED BY A LINE FROM 12N162E TO 
4N162E TO 4N172E TO 7N172E TO 12N174E BACK TO 12N172E.
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