ATPQ40 PGUM 211435 SIMGUM SATELLITE INTERPRETATION MESSAGE NATIONAL WEATHER SERVICE TIYAN GU 100 AM CHST WED MAY 22 2013 WESTERN NORTH PACIFIC BETWEEN EQUATOR AND 25N FROM 130E TO 180. A SURFACE TROUGH RUNS NORTHWEST FROM 5N138E TO 10N134E. ISOLATED THUNDERSTORMS ARE SEEN NEAR KOROR AND WEST OF YAP BETWEEN 8N AND 10N FROM 134E TO 137E. A TRADE-WIND DISTURBANCE IS GENERATING SCATTERED SHOWERS AND ISOLATED THUNDERSTORMS FROM JUST SOUTH OF CHUUK AND POHNPEI TO SOUTHEAST OF YAP BETWEEN 1N AND 7N FROM 140E TO 160E. $$ AYDLETT