ATPQ40 PGUM 091504
SIMGUM
SATELLITE INTERPRETATION MESSAGE
NATIONAL WEATHER SERVICE TIYAN GU
100 AM CHST SUN MAY 10 2009
WESTERN NORTH PACIFIC BETWEEN EQUATOR AND 25N FROM 130E TO 180.
SURFACE CONVERGENCE EAST OF TROPICAL DEPRESSION CHAN-HOM IS INDUCING 
SCATTERED SHOWERS AND ISOLATED THUNDERSTORMS WELL WEST OF THE 
MARIANAS IN AN AREA BOUNDED BY A LINE FROM 20N130E TO 18N138E TO 
15N138E TO 13N130E BACK TO 20130E.
A NEAR EQUATORIAL TROUGH ARCING NORTHWESTWARD FROM EQ147E TO PAST 
130E AT 5N COUPLED WITH AN UPPER-LEVEL TROUGH RUNNING SOUTHWARD FROM 
18N147E TO 7N145E IS GENERATING SCATTERED SHOWERS AND ISOLATED 
THUNDERSTORMS IN TWO AREAS. THE FIRST AREA IS WITHIN 70 MILES OF A 
LINE FROM YAP TO 9N144E. THE SECOND AREA IS WITHIN 60 MILES OF A 
LINE ARCING FROM 7N144E TO 4N146E TO EQ148E.
A BROAD CIRCULATION NEAR EQ157E IS PRODUCING SCATTERED SHOWERS AND 
ISOLATED THUNDERSTORMS SOUTH OF POHNPEI BETWEEN 5N AND THE EQUATOR 
FROM 154E TO 162E.
TRADE-WIND CONVERGENCE IS CAUSING SCATTERED SHOWERS OVER THE 
MARSHALL ISLANDS INCLUDING MAJURO WITHIN 130 MILES OF A LINE FROM 
9N169E TO PAST THE DATE LINE AT 2N.
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