ATPQ40 PGUM 201439
SIMGUM
SATELLITE INTERPRETATION MESSAGE
NATIONAL WEATHER SERVICE TIYAN GU
100 AM CHST WED JAN 21 2009
WESTERN NORTH PACIFIC BETWEEN EQUATOR AND 25N FROM 130E TO 180.
A SURFACE TROUGH EXTENDS SOUTHWESTWARD FROM 20N137E TO BEYOND 130E 
AT 12N. SCATTERED SHOWERS AND A FEW THUNDERSTORMS ARE FOUND EAST OF 
THE TROUGH AXIS NEAR KOROR AND YAP BETWEEN 6N AND 9N FROM 135E TO 
143E.
ANOTHER SURFACE TROUGH EXTENDS SOUTHWARD FROM 6N148E TO EQ148E. 
SCATTERED SHOWERS AND A FEW THUNDERSTORMS ARE FOUND WEST OF CHUUK 
WITHIN 75 MILES OF THE TROUGH AXIS.
TRADE-WIND CONVERGENCE IN GENERATING SCATTERED SHOWERS AND ISOLATED 
THUNDERSTORMS SOUTH OF POHNPEI AND KOSRAE AND JUST OVER MAJURO 
WITHIN 100 MILES OF A LINE EXTENDING EASTWARD FROM 3N158E TO 3N175E.
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