ATPQ40 PGUM 200356
SIMGUM
SATELLITE INTERPRETATION MESSAGE
NATIONAL WEATHER SERVICE TIYAN GU
200 PM CHST SAT SEP 20 2008
WESTERN NORTH PACIFIC BETWEEN EQUATOR AND 25N FROM 130E TO 180.
TROPICAL STORM HAGUPIT (18W) IS CENTERED NORTHWEST OF KOROR AND EAST 
OF THE PHILLIPINES NEAR 13N131E. NUMEROUS SHOWERS AND THUNDERSTORMS 
ARE OCCURRING WITHIN 225 MILES OF THE CENTER. FARTHER OUT SCATTERED 
SHOWERS AND ISOLATED THUNDERSTORMS ARE BEING PRODUCED BY CONVERGENT 
WINDS INTO THE STORM FROM 9N TO 18N AND WEST OF 141E. THIS INCLUDES 
THE AREA JUST TO THE NORTH AND WEST OF KOROR AND YAP AND WEST OF 
THE MARIANAS. FOR MORE DETAILED INFORMATION ON TROPICAL STORM 
HAGUPIT...REFER TO ADVISORIES ISSUED BY THE JTWC UNDER WMO HEADER 
WTPN32 PGTW.
CLOSER TO THE MARIANAS...A TROUGH OF LOW PRESSURE IS APPROACHING 
FROM THE EAST AND IS LOCATED NEAR 150E. SCATTERED SHOWERS AND 
ISOLATED THUNDERSTORMS ARE OCCURRING OUT AHEAD OF THE TROUGH AXIS 
AND ALONG THE ISLAND CHAIN BETWEEN 8N AND 18N FROM 143E TO 151E.
A BROAD AREA OF TRADE-WIND CONVERGENCE IS OCCURRING SOUTH OF 10N AND 
EAST OF 150E AND IS HELPING TO PRODUCE SCATTERED SHOWERS AND 
THUNDERSTORMS WITHIN 250 MILES OF A LINE FROM 2N148E TO 7N161E 
NARROWING TO WITHIN 75 MILES ON EITHER SIDE OF 8N169E TO 7N180. THIS 
AREA IS SOUTH OF CHUUK AND INCLUDES POHNPEI...KOSRAE...KWAJELEIN AND 
MAJURO.  
$$
DEVITA/EDSON